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-rw-r--r--unix/tclUnixChan.c1839
1 files changed, 239 insertions, 1600 deletions
diff --git a/unix/tclUnixChan.c b/unix/tclUnixChan.c
index 8448b77..b4b2739 100644
--- a/unix/tclUnixChan.c
+++ b/unix/tclUnixChan.c
@@ -7,23 +7,16 @@
* Copyright (c) 1995-1997 Sun Microsystems, Inc.
* Copyright (c) 1998-1999 by Scriptics Corporation.
*
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tclInt.h" /* Internal definitions for Tcl. */
#include "tclIO.h" /* To get Channel type declaration. */
-#define SUPPORTS_TTY
-
-#undef DIRECT_BAUD
-#ifdef B4800
-# if (B4800 == 4800)
-# define DIRECT_BAUD
-# endif /* B4800 == 4800 */
-#endif /* B4800 */
-
-#ifdef USE_TERMIOS
+#undef SUPPORTS_TTY
+#if defined(HAVE_TERMIOS_H)
+# define SUPPORTS_TTY 1
# include <termios.h>
# ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
@@ -31,60 +24,29 @@
# ifdef HAVE_SYS_MODEM_H
# include <sys/modem.h>
# endif /* HAVE_SYS_MODEM_H */
-# define IOSTATE struct termios
-# define GETIOSTATE(fd, statePtr) tcgetattr((fd), (statePtr))
-# define SETIOSTATE(fd, statePtr) tcsetattr((fd), TCSADRAIN, (statePtr))
-# define GETCONTROL(fd, intPtr) ioctl((fd), TIOCMGET, (intPtr))
-# define SETCONTROL(fd, intPtr) ioctl((fd), TIOCMSET, (intPtr))
# ifdef FIONREAD
# define GETREADQUEUE(fd, int) ioctl((fd), FIONREAD, &(int))
# elif defined(FIORDCHK)
# define GETREADQUEUE(fd, int) int = ioctl((fd), FIORDCHK, NULL)
-# endif /* FIONREAD */
+# else
+# define GETREADQUEUE(fd, int) int = 0
+# endif
+
# ifdef TIOCOUTQ
# define GETWRITEQUEUE(fd, int) ioctl((fd), TIOCOUTQ, &(int))
-# endif /* TIOCOUTQ */
-# if defined(TIOCSBRK) && defined(TIOCCBRK)
+# else
+# define GETWRITEQUEUE(fd, int) int = 0
+# endif
-/*
- * Can't use ?: operator below because that messes up types on either Linux or
- * Solaris (the two are mutually exclusive!)
- */
-
-# define SETBREAK(fd, flag) \
- if (flag) { \
- ioctl((fd), TIOCSBRK, NULL); \
- } else { \
- ioctl((fd), TIOCCBRK, NULL); \
- }
-# endif /* TIOCSBRK&TIOCCBRK */
# if !defined(CRTSCTS) && defined(CNEW_RTSCTS)
# define CRTSCTS CNEW_RTSCTS
# endif /* !CRTSCTS&CNEW_RTSCTS */
# if !defined(PAREXT) && defined(CMSPAR)
# define PAREXT CMSPAR
# endif /* !PAREXT&&CMSPAR */
-#else /* !USE_TERMIOS */
-
-#ifdef USE_TERMIO
-# include <termio.h>
-# define IOSTATE struct termio
-# define GETIOSTATE(fd, statePtr) ioctl((fd), TCGETA, (statePtr))
-# define SETIOSTATE(fd, statePtr) ioctl((fd), TCSETAW, (statePtr))
-#else /* !USE_TERMIO */
-
-#ifdef USE_SGTTY
-# include <sgtty.h>
-# define IOSTATE struct sgttyb
-# define GETIOSTATE(fd, statePtr) ioctl((fd), TIOCGETP, (statePtr))
-# define SETIOSTATE(fd, statePtr) ioctl((fd), TIOCSETP, (statePtr))
-#else /* !USE_SGTTY */
-# undef SUPPORTS_TTY
-#endif /* !USE_SGTTY */
-
-#endif /* !USE_TERMIO */
-#endif /* !USE_TERMIOS */
+
+#endif /* HAVE_TERMIOS_H */
/*
* Helper macros to make parts of this file clearer. The macros do exactly
@@ -110,18 +72,6 @@ typedef struct FileState {
#ifdef SUPPORTS_TTY
/*
- * The following structure describes per-instance state of a tty-based
- * channel.
- */
-
-typedef struct TtyState {
- FileState fs; /* Per-instance state of the file descriptor.
- * Must be the first field. */
- IOSTATE savedState; /* Initial state of device. Used to reset
- * state when device closed. */
-} TtyState;
-
-/*
* The following structure is used to set or get the serial port attributes in
* a platform-independant manner.
*/
@@ -136,67 +86,16 @@ typedef struct TtyAttrs {
#endif /* !SUPPORTS_TTY */
#define UNSUPPORTED_OPTION(detail) \
- if (interp) { \
- Tcl_AppendResult(interp, (detail), \
- " not supported for this platform", NULL); \
+ if (interp) { \
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf( \
+ "%s not supported for this platform", (detail))); \
+ Tcl_SetErrorCode(interp, "TCL", "UNSUPPORTED", NULL); \
}
/*
- * This structure describes per-instance state of a tcp based channel.
- */
-
-typedef struct TcpState {
- Tcl_Channel channel; /* Channel associated with this file. */
- int fd; /* The socket itself. */
- int flags; /* ORed combination of the bitfields defined
- * below. */
- int interest; /* Events types of interest. */
- Tcl_TcpAcceptProc *acceptProc;
- /* Proc to call on accept. */
- ClientData acceptProcData; /* The data for the accept proc. */
-} TcpState;
-
-/*
- * These bits may be ORed together into the "flags" field of a TcpState
- * structure.
- */
-
-#define TCP_ASYNC_SOCKET (1<<0) /* Asynchronous socket. */
-#define TCP_ASYNC_CONNECT (1<<1) /* Async connect in progress. */
-
-/*
- * The following defines the maximum length of the listen queue. This is the
- * number of outstanding yet-to-be-serviced requests for a connection on a
- * server socket, more than this number of outstanding requests and the
- * connection request will fail.
- */
-
-#ifndef SOMAXCONN
-# define SOMAXCONN 100
-#endif /* SOMAXCONN */
-
-#if (SOMAXCONN < 100)
-# undef SOMAXCONN
-# define SOMAXCONN 100
-#endif /* SOMAXCONN < 100 */
-
-/*
- * The following defines how much buffer space the kernel should maintain for
- * a socket.
- */
-
-#define SOCKET_BUFSIZE 4096
-
-/*
* Static routines for this file:
*/
-static TcpState * CreateSocket(Tcl_Interp *interp, int port,
- const char *host, int server, const char *myaddr,
- int myport, int async);
-static int CreateSocketAddress(struct sockaddr_in *sockaddrPtr,
- const char *host, int port, int willBind,
- const char **errorMsgPtr);
static int FileBlockModeProc(ClientData instanceData, int mode);
static int FileCloseProc(ClientData instanceData,
Tcl_Interp *interp);
@@ -213,49 +112,28 @@ static int FileTruncateProc(ClientData instanceData,
static Tcl_WideInt FileWideSeekProc(ClientData instanceData,
Tcl_WideInt offset, int mode, int *errorCode);
static void FileWatchProc(ClientData instanceData, int mask);
-static void TcpAccept(ClientData data, int mask);
-static int TcpBlockModeProc(ClientData data, int mode);
-static int TcpCloseProc(ClientData instanceData,
- Tcl_Interp *interp);
-static int TcpGetHandleProc(ClientData instanceData,
- int direction, ClientData *handlePtr);
-static int TcpGetOptionProc(ClientData instanceData,
- Tcl_Interp *interp, const char *optionName,
- Tcl_DString *dsPtr);
-static int TcpInputProc(ClientData instanceData, char *buf,
- int toRead, int *errorCode);
-static int TcpOutputProc(ClientData instanceData,
- const char *buf, int toWrite, int *errorCode);
-static void TcpWatchProc(ClientData instanceData, int mask);
#ifdef SUPPORTS_TTY
static void TtyGetAttributes(int fd, TtyAttrs *ttyPtr);
static int TtyGetOptionProc(ClientData instanceData,
Tcl_Interp *interp, const char *optionName,
Tcl_DString *dsPtr);
-#ifndef DIRECT_BAUD
-static int TtyGetBaud(unsigned long speed);
-static unsigned long TtyGetSpeed(int baud);
-#endif /* DIRECT_BAUD */
-static FileState * TtyInit(int fd, int initialize);
+static int TtyGetBaud(speed_t speed);
+static speed_t TtyGetSpeed(int baud);
+static void TtyInit(int fd);
static void TtyModemStatusStr(int status, Tcl_DString *dsPtr);
static int TtyParseMode(Tcl_Interp *interp, const char *mode,
- int *speedPtr, int *parityPtr, int *dataPtr,
- int *stopPtr);
+ TtyAttrs *ttyPtr);
static void TtySetAttributes(int fd, TtyAttrs *ttyPtr);
static int TtySetOptionProc(ClientData instanceData,
Tcl_Interp *interp, const char *optionName,
const char *value);
#endif /* SUPPORTS_TTY */
-static int WaitForConnect(TcpState *statePtr, int *errorCodePtr);
-static Tcl_Channel MakeTcpClientChannelMode(ClientData tcpSocket,
- int mode);
-static void WrapNotify(ClientData clientData, int mask);
/*
* This structure describes the channel type structure for file based IO:
*/
-static Tcl_ChannelType fileChannelType = {
+static const Tcl_ChannelType fileChannelType = {
"file", /* Type name. */
TCL_CHANNEL_VERSION_5, /* v5 channel */
FileCloseProc, /* Close proc. */
@@ -272,7 +150,7 @@ static Tcl_ChannelType fileChannelType = {
NULL, /* handler proc. */
FileWideSeekProc, /* wide seek proc. */
NULL,
- FileTruncateProc, /* truncate proc. */
+ FileTruncateProc /* truncate proc. */
};
#ifdef SUPPORTS_TTY
@@ -281,7 +159,7 @@ static Tcl_ChannelType fileChannelType = {
* Note that this type is a subclass of the "file" type.
*/
-static Tcl_ChannelType ttyChannelType = {
+static const Tcl_ChannelType ttyChannelType = {
"tty", /* Type name. */
TCL_CHANNEL_VERSION_5, /* v5 channel */
FileCloseProc, /* Close proc. */
@@ -298,34 +176,9 @@ static Tcl_ChannelType ttyChannelType = {
NULL, /* handler proc. */
NULL, /* wide seek proc. */
NULL, /* thread action proc. */
- NULL, /* truncate proc. */
+ NULL /* truncate proc. */
};
#endif /* SUPPORTS_TTY */
-
-/*
- * This structure describes the channel type structure for TCP socket
- * based IO:
- */
-
-static Tcl_ChannelType tcpChannelType = {
- "tcp", /* Type name. */
- TCL_CHANNEL_VERSION_5, /* v5 channel */
- TcpCloseProc, /* Close proc. */
- TcpInputProc, /* Input proc. */
- TcpOutputProc, /* Output proc. */
- NULL, /* Seek proc. */
- NULL, /* Set option proc. */
- TcpGetOptionProc, /* Get option proc. */
- TcpWatchProc, /* Initialize notifier. */
- TcpGetHandleProc, /* Get OS handles out of channel. */
- NULL, /* close2proc. */
- TcpBlockModeProc, /* Set blocking or non-blocking mode.*/
- NULL, /* flush proc. */
- NULL, /* handler proc. */
- NULL, /* wide seek proc. */
- NULL, /* thread action proc. */
- NULL, /* truncate proc. */
-};
/*
*----------------------------------------------------------------------
@@ -348,11 +201,10 @@ static Tcl_ChannelType tcpChannelType = {
static int
FileBlockModeProc(
ClientData instanceData, /* File state. */
- int mode) /* The mode to set. Can be one of
- * TCL_MODE_BLOCKING or
- * TCL_MODE_NONBLOCKING. */
+ int mode) /* The mode to set. Can be TCL_MODE_BLOCKING
+ * or TCL_MODE_NONBLOCKING. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
if (TclUnixSetBlockingMode(fsPtr->fd, mode) < 0) {
return errno;
@@ -387,7 +239,7 @@ FileInputProc(
* buffer? */
int *errorCodePtr) /* Where to store error code. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
int bytesRead; /* How many bytes were actually read from the
* input device? */
@@ -433,7 +285,7 @@ FileOutputProc(
int toWrite, /* How many bytes to write? */
int *errorCodePtr) /* Where to store error code. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
int written;
*errorCodePtr = 0;
@@ -477,7 +329,7 @@ FileCloseProc(
ClientData instanceData, /* File state. */
Tcl_Interp *interp) /* For error reporting - unused. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
int errorCode = 0;
Tcl_DeleteFileHandler(fsPtr->fd);
@@ -492,7 +344,7 @@ FileCloseProc(
errorCode = errno;
}
}
- ckfree((char *) fsPtr);
+ ckfree(fsPtr);
return errorCode;
}
@@ -523,7 +375,7 @@ FileSeekProc(
* one of SEEK_START, SEEK_SET or SEEK_END. */
int *errorCodePtr) /* To store error code. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
Tcl_WideInt oldLoc, newLoc;
/*
@@ -584,7 +436,7 @@ FileWideSeekProc(
* one of SEEK_START, SEEK_CUR or SEEK_END. */
int *errorCodePtr) /* To store error code. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
Tcl_WideInt newLoc;
newLoc = TclOSseek(fsPtr->fd, (Tcl_SeekOffset) offset, mode);
@@ -617,7 +469,7 @@ FileWatchProc(
* TCL_READABLE, TCL_WRITABLE and
* TCL_EXCEPTION. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
/*
* Make sure we only register for events that are valid on this file. Note
@@ -628,8 +480,7 @@ FileWatchProc(
mask &= fsPtr->validMask;
if (mask) {
Tcl_CreateFileHandler(fsPtr->fd, mask,
- (Tcl_FileProc *) Tcl_NotifyChannel,
- (ClientData) fsPtr->channel);
+ (Tcl_FileProc *) Tcl_NotifyChannel, fsPtr->channel);
} else {
Tcl_DeleteFileHandler(fsPtr->fd);
}
@@ -659,17 +510,16 @@ FileGetHandleProc(
int direction, /* TCL_READABLE or TCL_WRITABLE */
ClientData *handlePtr) /* Where to store the handle. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
if (direction & fsPtr->validMask) {
- *handlePtr = (ClientData) INT2PTR(fsPtr->fd);
+ *handlePtr = INT2PTR(fsPtr->fd);
return TCL_OK;
}
return TCL_ERROR;
}
#ifdef SUPPORTS_TTY
-#ifdef USE_TERMIOS
/*
*----------------------------------------------------------------------
*
@@ -702,7 +552,6 @@ TtyModemStatusStr(
Tcl_DStringAppendElement(dsPtr, (status & TIOCM_CD) ? "1" : "0");
#endif /* TIOCM_CD */
}
-#endif /* USE_TERMIOS */
/*
*----------------------------------------------------------------------
@@ -729,14 +578,12 @@ TtySetOptionProc(
const char *optionName, /* Which option to set? */
const char *value) /* New value for option. */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
unsigned int len, vlen;
TtyAttrs tty;
-#ifdef USE_TERMIOS
- int flag, control, argc;
+ int argc;
const char **argv;
- IOSTATE iostate;
-#endif /* USE_TERMIOS */
+ struct termios iostate;
len = strlen(optionName);
vlen = strlen(value);
@@ -744,9 +591,9 @@ TtySetOptionProc(
/*
* Option -mode baud,parity,databits,stopbits
*/
+
if ((len > 2) && (strncmp(optionName, "-mode", len) == 0)) {
- if (TtyParseMode(interp, value, &tty.baud, &tty.parity, &tty.data,
- &tty.stop) != TCL_OK) {
+ if (TtyParseMode(interp, value, &tty) != TCL_OK) {
return TCL_ERROR;
}
@@ -758,7 +605,6 @@ TtySetOptionProc(
return TCL_OK;
}
-#ifdef USE_TERMIOS
/*
* Option -handshake none|xonxoff|rtscts|dtrdsr
@@ -769,34 +615,38 @@ TtySetOptionProc(
* Reset all handshake options. DTR and RTS are ON by default.
*/
- GETIOSTATE(fsPtr->fd, &iostate);
+ tcgetattr(fsPtr->fd, &iostate);
CLEAR_BITS(iostate.c_iflag, IXON | IXOFF | IXANY);
#ifdef CRTSCTS
CLEAR_BITS(iostate.c_cflag, CRTSCTS);
#endif /* CRTSCTS */
- if (strncasecmp(value, "NONE", vlen) == 0) {
- /* leave all handshake options disabled */
- } else if (strncasecmp(value, "XONXOFF", vlen) == 0) {
+ if (Tcl_UtfNcasecmp(value, "NONE", vlen) == 0) {
+ /*
+ * Leave all handshake options disabled.
+ */
+ } else if (Tcl_UtfNcasecmp(value, "XONXOFF", vlen) == 0) {
SET_BITS(iostate.c_iflag, IXON | IXOFF | IXANY);
- } else if (strncasecmp(value, "RTSCTS", vlen) == 0) {
+ } else if (Tcl_UtfNcasecmp(value, "RTSCTS", vlen) == 0) {
#ifdef CRTSCTS
SET_BITS(iostate.c_cflag, CRTSCTS);
#else /* !CRTSTS */
UNSUPPORTED_OPTION("-handshake RTSCTS");
return TCL_ERROR;
#endif /* CRTSCTS */
- } else if (strncasecmp(value, "DTRDSR", vlen) == 0) {
+ } else if (Tcl_UtfNcasecmp(value, "DTRDSR", vlen) == 0) {
UNSUPPORTED_OPTION("-handshake DTRDSR");
return TCL_ERROR;
} else {
if (interp) {
- Tcl_AppendResult(interp, "bad value for -handshake: "
- "must be one of xonxoff, rtscts, dtrdsr or none",
- NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "bad value for -handshake: must be one of"
+ " xonxoff, rtscts, dtrdsr or none", -1));
+ Tcl_SetErrorCode(interp, "TCL", "OPERATION", "FCONFIGURE",
+ "VALUE", NULL);
}
return TCL_ERROR;
}
- SETIOSTATE(fsPtr->fd, &iostate);
+ tcsetattr(fsPtr->fd, TCSADRAIN, &iostate);
return TCL_OK;
}
@@ -805,31 +655,34 @@ TtySetOptionProc(
*/
if ((len > 1) && (strncmp(optionName, "-xchar", len) == 0)) {
- GETIOSTATE(fsPtr->fd, &iostate);
+ Tcl_DString ds;
+
if (Tcl_SplitList(interp, value, &argc, &argv) == TCL_ERROR) {
return TCL_ERROR;
- }
- if (argc == 2) {
- Tcl_DString ds;
- Tcl_DStringInit(&ds);
-
- Tcl_UtfToExternalDString(NULL, argv[0], -1, &ds);
- iostate.c_cc[VSTART] = *(const cc_t *) Tcl_DStringValue(&ds);
- Tcl_DStringSetLength(&ds, 0);
-
- Tcl_UtfToExternalDString(NULL, argv[1], -1, &ds);
- iostate.c_cc[VSTOP] = *(const cc_t *) Tcl_DStringValue(&ds);
- Tcl_DStringFree(&ds);
- } else {
+ } else if (argc != 2) {
if (interp) {
- Tcl_AppendResult(interp, "bad value for -xchar: "
- "should be a list of two elements", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "bad value for -xchar: should be a list of"
+ " two elements", -1));
+ Tcl_SetErrorCode(interp, "TCL", "OPERATION", "FCONFIGURE",
+ "VALUE", NULL);
}
- ckfree((char *) argv);
+ ckfree(argv);
return TCL_ERROR;
}
- SETIOSTATE(fsPtr->fd, &iostate);
- ckfree((char *) argv);
+
+ tcgetattr(fsPtr->fd, &iostate);
+
+ Tcl_UtfToExternalDString(NULL, argv[0], -1, &ds);
+ iostate.c_cc[VSTART] = *(const cc_t *) Tcl_DStringValue(&ds);
+ TclDStringClear(&ds);
+
+ Tcl_UtfToExternalDString(NULL, argv[1], -1, &ds);
+ iostate.c_cc[VSTOP] = *(const cc_t *) Tcl_DStringValue(&ds);
+ Tcl_DStringFree(&ds);
+ ckfree(argv);
+
+ tcsetattr(fsPtr->fd, TCSADRAIN, &iostate);
return TCL_OK;
}
@@ -840,95 +693,91 @@ TtySetOptionProc(
if ((len > 2) && (strncmp(optionName, "-timeout", len) == 0)) {
int msec;
- GETIOSTATE(fsPtr->fd, &iostate);
+ tcgetattr(fsPtr->fd, &iostate);
if (Tcl_GetInt(interp, value, &msec) != TCL_OK) {
return TCL_ERROR;
}
iostate.c_cc[VMIN] = 0;
iostate.c_cc[VTIME] = (msec==0) ? 0 : (msec<100) ? 1 : (msec+50)/100;
- SETIOSTATE(fsPtr->fd, &iostate);
+ tcsetattr(fsPtr->fd, TCSADRAIN, &iostate);
return TCL_OK;
}
/*
* Option -ttycontrol {DTR 1 RTS 0 BREAK 0}
*/
-
if ((len > 4) && (strncmp(optionName, "-ttycontrol", len) == 0)) {
- int i;
+#if defined(TIOCMGET) && defined(TIOCMSET)
+ int i, control, flag;
if (Tcl_SplitList(interp, value, &argc, &argv) == TCL_ERROR) {
return TCL_ERROR;
}
if ((argc % 2) == 1) {
if (interp) {
- Tcl_AppendResult(interp, "bad value for -ttycontrol: "
- "should be a list of signal,value pairs", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "bad value for -ttycontrol: should be a list of"
+ " signal,value pairs", -1));
+ Tcl_SetErrorCode(interp, "TCL", "OPERATION", "FCONFIGURE",
+ "VALUE", NULL);
}
- ckfree((char *) argv);
+ ckfree(argv);
return TCL_ERROR;
}
- GETCONTROL(fsPtr->fd, &control);
+ ioctl(fsPtr->fd, TIOCMGET, &control);
for (i = 0; i < argc-1; i += 2) {
if (Tcl_GetBoolean(interp, argv[i+1], &flag) == TCL_ERROR) {
- ckfree((char *) argv);
+ ckfree(argv);
return TCL_ERROR;
}
- if (strncasecmp(argv[i], "DTR", strlen(argv[i])) == 0) {
-#ifdef TIOCM_DTR
+ if (Tcl_UtfNcasecmp(argv[i], "DTR", strlen(argv[i])) == 0) {
if (flag) {
SET_BITS(control, TIOCM_DTR);
} else {
CLEAR_BITS(control, TIOCM_DTR);
}
-#else /* !TIOCM_DTR */
- UNSUPPORTED_OPTION("-ttycontrol DTR");
- ckfree((char *) argv);
- return TCL_ERROR;
-#endif /* TIOCM_DTR */
- } else if (strncasecmp(argv[i], "RTS", strlen(argv[i])) == 0) {
-#ifdef TIOCM_RTS
+ } else if (Tcl_UtfNcasecmp(argv[i], "RTS", strlen(argv[i])) == 0) {
if (flag) {
SET_BITS(control, TIOCM_RTS);
} else {
CLEAR_BITS(control, TIOCM_RTS);
}
-#else /* !TIOCM_RTS*/
- UNSUPPORTED_OPTION("-ttycontrol RTS");
- ckfree((char *) argv);
- return TCL_ERROR;
-#endif /* TIOCM_RTS*/
- } else if (strncasecmp(argv[i], "BREAK", strlen(argv[i])) == 0) {
-#ifdef SETBREAK
- SETBREAK(fsPtr->fd, flag);
-#else /* !SETBREAK */
+ } else if (Tcl_UtfNcasecmp(argv[i], "BREAK", strlen(argv[i])) == 0) {
+#if defined(TIOCSBRK) && defined(TIOCCBRK)
+ if (flag) {
+ ioctl(fsPtr->fd, TIOCSBRK, NULL);
+ } else {
+ ioctl(fsPtr->fd, TIOCCBRK, NULL);
+ }
+#else /* TIOCSBRK & TIOCCBRK */
UNSUPPORTED_OPTION("-ttycontrol BREAK");
- ckfree((char *) argv);
+ ckfree(argv);
return TCL_ERROR;
-#endif /* SETBREAK */
+#endif /* TIOCSBRK & TIOCCBRK */
} else {
if (interp) {
- Tcl_AppendResult(interp, "bad signal \"", argv[i],
- "\" for -ttycontrol: must be "
- "DTR, RTS or BREAK", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "bad signal \"%s\" for -ttycontrol: must be"
+ " DTR, RTS or BREAK", argv[i]));
+ Tcl_SetErrorCode(interp, "TCL", "OPERATION", "FCONFIGURE",
+ "VALUE", NULL);
}
- ckfree((char *) argv);
+ ckfree(argv);
return TCL_ERROR;
}
} /* -ttycontrol options loop */
- SETCONTROL(fsPtr->fd, &control);
- ckfree((char *) argv);
+ ioctl(fsPtr->fd, TIOCMSET, &control);
+ ckfree(argv);
return TCL_OK;
+#else /* TIOCMGET&TIOCMSET */
+ UNSUPPORTED_OPTION("-ttycontrol");
+#endif /* TIOCMGET&TIOCMSET */
}
return Tcl_BadChannelOption(interp, optionName,
"mode handshake timeout ttycontrol xchar");
-
-#else /* !USE_TERMIOS */
- return Tcl_BadChannelOption(interp, optionName, "mode");
-#endif /* USE_TERMIOS */
}
/*
@@ -943,12 +792,8 @@ TtySetOptionProc(
*
* Results:
* A standard Tcl result. Also sets the supplied DString to the string
- * value of the option(s) returned.
- *
- * Side effects:
- * The string returned by this function is in static storage and may be
- * reused at any time subsequent to the call. Sets error message if
- * needed (by calling Tcl_BadChannelOption).
+ * value of the option(s) returned. Sets error message if needed
+ * (by calling Tcl_BadChannelOption).
*
*----------------------------------------------------------------------
*/
@@ -960,7 +805,7 @@ TtyGetOptionProc(
const char *optionName, /* Option to get. */
Tcl_DString *dsPtr) /* Where to store value(s). */
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
unsigned int len;
char buf[3*TCL_INTEGER_SPACE + 16];
int valid = 0; /* Flag if valid option parsed. */
@@ -982,7 +827,6 @@ TtyGetOptionProc(
Tcl_DStringAppendElement(dsPtr, buf);
}
-#ifdef USE_TERMIOS
/*
* Get option -xchar
*/
@@ -992,19 +836,19 @@ TtyGetOptionProc(
Tcl_DStringStartSublist(dsPtr);
}
if (len==0 || (len>1 && strncmp(optionName, "-xchar", len)==0)) {
- IOSTATE iostate;
+ struct termios iostate;
Tcl_DString ds;
- valid = 1;
- GETIOSTATE(fsPtr->fd, &iostate);
+ valid = 1;
+ tcgetattr(fsPtr->fd, &iostate);
Tcl_DStringInit(&ds);
- Tcl_ExternalToUtfDString(NULL, (const char *) &iostate.c_cc[VSTART], 1, &ds);
- Tcl_DStringAppendElement(dsPtr, (const char *) Tcl_DStringValue(&ds));
- Tcl_DStringSetLength(&ds, 0);
+ Tcl_ExternalToUtfDString(NULL, (char *) &iostate.c_cc[VSTART], 1, &ds);
+ Tcl_DStringAppendElement(dsPtr, Tcl_DStringValue(&ds));
+ TclDStringClear(&ds);
- Tcl_ExternalToUtfDString(NULL, (const char *) &iostate.c_cc[VSTOP], 1, &ds);
- Tcl_DStringAppendElement(dsPtr, (const char *) Tcl_DStringValue(&ds));
+ Tcl_ExternalToUtfDString(NULL, (char *) &iostate.c_cc[VSTOP], 1, &ds);
+ Tcl_DStringAppendElement(dsPtr, Tcl_DStringValue(&ds));
Tcl_DStringFree(&ds);
}
if (len == 0) {
@@ -1021,12 +865,8 @@ TtyGetOptionProc(
int inQueue=0, outQueue=0, inBuffered, outBuffered;
valid = 1;
-#ifdef GETREADQUEUE
GETREADQUEUE(fsPtr->fd, inQueue);
-#endif /* GETREADQUEUE */
-#ifdef GETWRITEQUEUE
GETWRITEQUEUE(fsPtr->fd, outQueue);
-#endif /* GETWRITEQUEUE */
inBuffered = Tcl_InputBuffered(fsPtr->channel);
outBuffered = Tcl_OutputBuffered(fsPtr->channel);
@@ -1036,6 +876,7 @@ TtyGetOptionProc(
Tcl_DStringAppendElement(dsPtr, buf);
}
+#if defined(TIOCMGET)
/*
* Get option -ttystatus
* Option is readonly and returned by [fconfigure chan -ttystatus] but not
@@ -1045,27 +886,21 @@ TtyGetOptionProc(
int status;
valid = 1;
- GETCONTROL(fsPtr->fd, &status);
+ ioctl(fsPtr->fd, TIOCMGET, &status);
TtyModemStatusStr(status, dsPtr);
}
-#endif /* USE_TERMIOS */
+#endif /* TIOCMGET */
if (valid) {
return TCL_OK;
}
return Tcl_BadChannelOption(interp, optionName, "mode"
-#ifdef USE_TERMIOS
" queue ttystatus xchar"
-#endif /* USE_TERMIOS */
);
}
-#ifdef DIRECT_BAUD
-# define TtyGetSpeed(baud) ((unsigned) (baud))
-# define TtyGetBaud(speed) ((int) (speed))
-#else /* !DIRECT_BAUD */
-static CONST struct {int baud; unsigned long speed;} speeds[] = {
+static const struct {int baud; speed_t speed;} speeds[] = {
#ifdef B0
{0, B0},
#endif
@@ -1194,20 +1029,16 @@ static CONST struct {int baud; unsigned long speed;} speeds[] = {
*
* TtyGetSpeed --
*
- * Given a baud rate, get the mask value that should be stored in the
- * termios, termio, or sgttyb structure in order to select that baud
- * rate.
+ * Given an integer baud rate, get the speed_t value that should be
+ * used to select that baud rate.
*
* Results:
* As above.
*
- * Side effects:
- * None.
- *
*---------------------------------------------------------------------------
*/
-static unsigned long
+static speed_t
TtyGetSpeed(
int baud) /* The baud rate to look up. */
{
@@ -1240,21 +1071,17 @@ TtyGetSpeed(
*
* TtyGetBaud --
*
- * Given a speed mask value from a termios, termio, or sgttyb structure,
- * get the baus rate that corresponds to that mask value.
+ * Return the integer baud rate corresponding to a given speed_t value.
*
* Results:
* As above. If the mask value was not recognized, 0 is returned.
*
- * Side effects:
- * None.
- *
*---------------------------------------------------------------------------
*/
static int
TtyGetBaud(
- unsigned long speed) /* Speed mask value to look up. */
+ speed_t speed) /* Speed mask value to look up. */
{
int i;
@@ -1265,7 +1092,6 @@ TtyGetBaud(
}
return 0;
}
-#endif /* !DIRECT_BAUD */
/*
*---------------------------------------------------------------------------
@@ -1290,12 +1116,11 @@ TtyGetAttributes(
TtyAttrs *ttyPtr) /* Buffer filled with serial port
* attributes. */
{
- IOSTATE iostate;
+ struct termios iostate;
int baud, parity, data, stop;
- GETIOSTATE(fd, &iostate);
+ tcgetattr(fd, &iostate);
-#ifdef USE_TERMIOS
baud = TtyGetBaud(cfgetospeed(&iostate));
parity = 'n';
@@ -1311,45 +1136,12 @@ TtyGetAttributes(
case PARENB : parity = 'e'; break;
case PARENB | PARODD : parity = 'o'; break;
}
-#endif /* !PAREXT */
-
- data = iostate.c_cflag & CSIZE;
- data = (data == CS5) ? 5 : (data == CS6) ? 6 : (data == CS7) ? 7 : 8;
-
- stop = (iostate.c_cflag & CSTOPB) ? 2 : 1;
-#endif /* USE_TERMIOS */
-
-#ifdef USE_TERMIO
- baud = TtyGetBaud(iostate.c_cflag & CBAUD);
-
- parity = 'n';
- switch (iostate.c_cflag & (PARENB | PARODD | PAREXT)) {
- case PARENB : parity = 'e'; break;
- case PARENB | PARODD : parity = 'o'; break;
- case PARENB | PAREXT : parity = 's'; break;
- case PARENB | PARODD | PAREXT : parity = 'm'; break;
- }
+#endif /* PAREXT */
data = iostate.c_cflag & CSIZE;
data = (data == CS5) ? 5 : (data == CS6) ? 6 : (data == CS7) ? 7 : 8;
stop = (iostate.c_cflag & CSTOPB) ? 2 : 1;
-#endif /* USE_TERMIO */
-
-#ifdef USE_SGTTY
- baud = TtyGetBaud(iostate.sg_ospeed);
-
- parity = 'n';
- if (iostate.sg_flags & EVENP) {
- parity = 'e';
- } else if (iostate.sg_flags & ODDP) {
- parity = 'o';
- }
-
- data = (iostate.sg_flags & (EVENP | ODDP)) ? 7 : 8;
-
- stop = 1;
-#endif /* USE_SGTTY */
ttyPtr->baud = baud;
ttyPtr->parity = parity;
@@ -1380,12 +1172,10 @@ TtySetAttributes(
TtyAttrs *ttyPtr) /* Buffer containing new attributes for serial
* port. */
{
- IOSTATE iostate;
-
-#ifdef USE_TERMIOS
+ struct termios iostate;
int parity, data, flag;
- GETIOSTATE(fd, &iostate);
+ tcgetattr(fd, &iostate);
cfsetospeed(&iostate, TtyGetSpeed(ttyPtr->baud));
cfsetispeed(&iostate, TtyGetSpeed(ttyPtr->baud));
@@ -1415,58 +1205,7 @@ TtySetAttributes(
CLEAR_BITS(iostate.c_cflag, PARENB | PARODD | CSIZE | CSTOPB);
SET_BITS(iostate.c_cflag, flag);
-#endif /* USE_TERMIOS */
-
-#ifdef USE_TERMIO
- int parity, data, flag;
-
- GETIOSTATE(fd, &iostate);
- CLEAR_BITS(iostate.c_cflag, CBAUD);
- SET_BITS(iostate.c_cflag, TtyGetSpeed(ttyPtr->baud));
-
- flag = 0;
- parity = ttyPtr->parity;
- if (parity != 'n') {
- SET_BITS(flag, PARENB);
- if ((parity == 'm') || (parity == 's')) {
- SET_BITS(flag, PAREXT);
- }
- if ((parity == 'm') || (parity == 'o')) {
- SET_BITS(flag, PARODD);
- }
- }
- data = ttyPtr->data;
- SET_BITS(flag,
- (data == 5) ? CS5 :
- (data == 6) ? CS6 :
- (data == 7) ? CS7 : CS8);
- if (ttyPtr->stop == 2) {
- SET_BITS(flag, CSTOPB);
- }
-
- CLEAR_BITS(iostate.c_cflag, PARENB | PARODD | PAREXT | CSIZE | CSTOPB);
- SET_BITS(iostate.c_cflag, flag);
-
-#endif /* USE_TERMIO */
-
-#ifdef USE_SGTTY
- int parity;
-
- GETIOSTATE(fd, &iostate);
- iostate.sg_ospeed = TtyGetSpeed(ttyPtr->baud);
- iostate.sg_ispeed = TtyGetSpeed(ttyPtr->baud);
-
- parity = ttyPtr->parity;
- if (parity == 'e') {
- CLEAR_BITS(iostate.sg_flags, ODDP);
- SET_BITS(iostate.sg_flags, EVENP);
- } else if (parity == 'o') {
- CLEAR_BITS(iostate.sg_flags, EVENP);
- SET_BITS(iostate.sg_flags, ODDP);
- }
-#endif /* USE_SGTTY */
-
- SETIOSTATE(fd, &iostate);
+ tcsetattr(fd, TCSADRAIN, &iostate);
}
/*
@@ -1482,9 +1221,6 @@ TtySetAttributes(
* TCL_ERROR otherwise. If TCL_ERROR is returned, an error message is
* left in the interp's result (if interp is non-NULL).
*
- * Side effects:
- * None.
- *
*---------------------------------------------------------------------------
*/
@@ -1492,21 +1228,22 @@ static int
TtyParseMode(
Tcl_Interp *interp, /* If non-NULL, interp for error return. */
const char *mode, /* Mode string to be parsed. */
- int *speedPtr, /* Filled with baud rate from mode string. */
- int *parityPtr, /* Filled with parity from mode string. */
- int *dataPtr, /* Filled with data bits from mode string. */
- int *stopPtr) /* Filled with stop bits from mode string. */
+ TtyAttrs *ttyPtr) /* Filled with data from mode string */
{
int i, end;
char parity;
- static const char *bad = "bad value for -mode";
+ const char *bad = "bad value for -mode";
- i = sscanf(mode, "%d,%c,%d,%d%n", speedPtr, &parity, dataPtr,
- stopPtr, &end);
+ i = sscanf(mode, "%d,%c,%d,%d%n",
+ &ttyPtr->baud,
+ &parity,
+ &ttyPtr->data,
+ &ttyPtr->stop, &end);
if ((i != 4) || (mode[end] != '\0')) {
if (interp != NULL) {
- Tcl_AppendResult(interp, bad, ": should be baud,parity,data,stop",
- NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "%s: should be baud,parity,data,stop", bad));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "SERIALMODE", NULL);
}
return TCL_ERROR;
}
@@ -1514,35 +1251,46 @@ TtyParseMode(
/*
* Only allow setting mark/space parity on platforms that support it Make
* sure to allow for the case where strchr is a macro. [Bug: 5089]
+ *
+ * We cannot if/else/endif the strchr arguments, it has to be the whole
+ * function. On AIX this function is apparently a macro, and macros do
+ * not allow pre-processor directives in their arguments.
*/
-#if defined(PAREXT) || defined(USE_TERMIO)
- if (strchr("noems", parity) == NULL) {
+ if (
+#if defined(PAREXT)
+ strchr("noems", parity)
#else
- if (strchr("noe", parity) == NULL) {
-#endif /* PAREXT|USE_TERMIO */
+ strchr("noe", parity)
+#endif /* PAREXT */
+ == NULL) {
if (interp != NULL) {
- Tcl_AppendResult(interp, bad, " parity: should be ",
-#if defined(PAREXT) || defined(USE_TERMIO)
- "n, o, e, m, or s",
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "%s parity: should be %s", bad,
+#if defined(PAREXT)
+ "n, o, e, m, or s"
#else
- "n, o, or e",
-#endif /* PAREXT|USE_TERMIO */
- NULL);
+ "n, o, or e"
+#endif /* PAREXT */
+ ));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "SERIALMODE", NULL);
}
return TCL_ERROR;
}
- *parityPtr = parity;
- if ((*dataPtr < 5) || (*dataPtr > 8)) {
+ ttyPtr->parity = parity;
+ if ((ttyPtr->data < 5) || (ttyPtr->data > 8)) {
if (interp != NULL) {
- Tcl_AppendResult(interp, bad, " data: should be 5, 6, 7, or 8",
- NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "%s data: should be 5, 6, 7, or 8", bad));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "SERIALMODE", NULL);
}
return TCL_ERROR;
}
- if ((*stopPtr < 0) || (*stopPtr > 2)) {
+ if ((ttyPtr->stop < 0) || (ttyPtr->stop > 2)) {
if (interp != NULL) {
- Tcl_AppendResult(interp, bad, " stop: should be 1 or 2", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "%s stop: should be 1 or 2", bad));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "SERIALMODE", NULL);
}
return TCL_ERROR;
}
@@ -1556,72 +1304,38 @@ TtyParseMode(
*
* Given file descriptor that refers to a serial port, initialize the
* serial port to a set of sane values so that Tcl can talk to a device
- * located on the serial port. Note that no initialization happens if the
- * initialize flag is not set; this is necessary for the correct handling
- * of UNIX console TTYs at startup.
- *
- * Results:
- * A pointer to a FileState suitable for use with Tcl_CreateChannel and
- * the ttyChannelType structure.
+ * located on the serial port.
*
* Side effects:
* Serial device initialized to non-blocking raw mode, similar to sockets
- * (if initialize flag is non-zero.) All other modes can be simulated on
- * top of this in Tcl.
+ * All other modes can be simulated on top of this in Tcl.
*
*---------------------------------------------------------------------------
*/
-static FileState *
+static void
TtyInit(
- int fd, /* Open file descriptor for serial port to be
- * initialized. */
- int initialize)
+ int fd) /* Open file descriptor for serial port to be initialized. */
{
- TtyState *ttyPtr;
- int stateUpdated = 0;
-
- ttyPtr = (TtyState *) ckalloc((unsigned) sizeof(TtyState));
- GETIOSTATE(fd, &ttyPtr->savedState);
- if (initialize) {
- IOSTATE iostate = ttyPtr->savedState;
-
-#if defined(USE_TERMIOS) || defined(USE_TERMIO)
- if (iostate.c_iflag != IGNBRK ||
- iostate.c_oflag != 0 ||
- iostate.c_lflag != 0 ||
- iostate.c_cflag & CREAD ||
- iostate.c_cc[VMIN] != 1 ||
- iostate.c_cc[VTIME] != 0) {
- stateUpdated = 1;
- }
+ struct termios iostate;
+ tcgetattr(fd, &iostate);
+
+ if (iostate.c_iflag != IGNBRK
+ || iostate.c_oflag != 0
+ || iostate.c_lflag != 0
+ || iostate.c_cflag & CREAD
+ || iostate.c_cc[VMIN] != 1
+ || iostate.c_cc[VTIME] != 0)
+ {
iostate.c_iflag = IGNBRK;
iostate.c_oflag = 0;
iostate.c_lflag = 0;
- SET_BITS(iostate.c_cflag, CREAD);
+ iostate.c_cflag |= CREAD;
iostate.c_cc[VMIN] = 1;
iostate.c_cc[VTIME] = 0;
-#endif /* USE_TERMIOS|USE_TERMIO */
-
-#ifdef USE_SGTTY
- if ((iostate.sg_flags & (EVENP | ODDP)) ||
- !(iostate.sg_flags & RAW)) {
- ttyPtr->stateUpdated = 1;
- }
- iostate.sg_flags &= EVENP | ODDP;
- SET_BITS(iostate.sg_flags, RAW);
-#endif /* USE_SGTTY */
-
- /*
- * Only update if we're changing anything to avoid possible blocking.
- */
- if (stateUpdated) {
- SETIOSTATE(fd, &iostate);
- }
+ tcsetattr(fd, TCSADRAIN, &iostate);
}
-
- return &ttyPtr->fs;
}
#endif /* SUPPORTS_TTY */
@@ -1657,7 +1371,7 @@ TclpOpenFileChannel(
FileState *fsPtr;
const char *native, *translation;
char channelName[16 + TCL_INTEGER_SPACE];
- Tcl_ChannelType *channelTypePtr;
+ const Tcl_ChannelType *channelTypePtr;
switch (mode & (O_RDONLY | O_WRONLY | O_RDWR)) {
case O_RDONLY:
@@ -1696,8 +1410,9 @@ TclpOpenFileChannel(
if (fd < 0) {
if (interp != NULL) {
- Tcl_AppendResult(interp, "couldn't open \"", TclGetString(pathPtr),
- "\": ", Tcl_PosixError(interp), NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "couldn't open \"%s\": %s",
+ TclGetString(pathPtr), Tcl_PosixError(interp)));
}
return NULL;
}
@@ -1729,20 +1444,20 @@ TclpOpenFileChannel(
translation = "auto crlf";
channelTypePtr = &ttyChannelType;
- fsPtr = TtyInit(fd, 1);
+ TtyInit(fd);
} else
#endif /* SUPPORTS_TTY */
{
translation = NULL;
channelTypePtr = &fileChannelType;
- fsPtr = (FileState *) ckalloc((unsigned) sizeof(FileState));
}
+ fsPtr = ckalloc(sizeof(FileState));
fsPtr->validMask = channelPermissions | TCL_EXCEPTION;
fsPtr->fd = fd;
fsPtr->channel = Tcl_CreateChannel(channelTypePtr, channelName,
- (ClientData) fsPtr, channelPermissions);
+ fsPtr, channelPermissions);
if (translation != NULL) {
/*
@@ -1788,7 +1503,7 @@ Tcl_MakeFileChannel(
FileState *fsPtr;
char channelName[16 + TCL_INTEGER_SPACE];
int fd = PTR2INT(handle);
- Tcl_ChannelType *channelTypePtr;
+ const Tcl_ChannelType *channelTypePtr;
struct sockaddr sockaddr;
socklen_t sockaddrLen = sizeof(sockaddr);
@@ -1800,25 +1515,24 @@ Tcl_MakeFileChannel(
#ifdef SUPPORTS_TTY
if (isatty(fd)) {
- fsPtr = TtyInit(fd, 0);
channelTypePtr = &ttyChannelType;
sprintf(channelName, "serial%d", fd);
} else
#endif /* SUPPORTS_TTY */
- if (getsockname(fd, (struct sockaddr *)&sockaddr, &sockaddrLen) == 0
- && sockaddrLen > 0
- && sockaddr.sa_family == AF_INET) {
- return MakeTcpClientChannelMode((ClientData) INT2PTR(fd), mode);
+ if ((getsockname(fd, (struct sockaddr *)&sockaddr, &sockaddrLen) == 0)
+ && (sockaddrLen > 0)
+ && (sockaddr.sa_family == AF_INET || sockaddr.sa_family == AF_INET6)) {
+ return TclpMakeTcpClientChannelMode(INT2PTR(fd), mode);
} else {
channelTypePtr = &fileChannelType;
- fsPtr = (FileState *) ckalloc((unsigned) sizeof(FileState));
sprintf(channelName, "file%d", fd);
}
+ fsPtr = ckalloc(sizeof(FileState));
fsPtr->fd = fd;
fsPtr->validMask = mode | TCL_EXCEPTION;
fsPtr->channel = Tcl_CreateChannel(channelTypePtr, channelName,
- (ClientData) fsPtr, mode);
+ fsPtr, mode);
return fsPtr->channel;
}
@@ -1826,1086 +1540,6 @@ Tcl_MakeFileChannel(
/*
*----------------------------------------------------------------------
*
- * TcpBlockModeProc --
- *
- * This function is invoked by the generic IO level to set blocking and
- * nonblocking mode on a TCP socket based channel.
- *
- * Results:
- * 0 if successful, errno when failed.
- *
- * Side effects:
- * Sets the device into blocking or nonblocking mode.
- *
- *----------------------------------------------------------------------
- */
-
- /* ARGSUSED */
-static int
-TcpBlockModeProc(
- ClientData instanceData, /* Socket state. */
- int mode) /* The mode to set. Can be one of
- * TCL_MODE_BLOCKING or
- * TCL_MODE_NONBLOCKING. */
-{
- TcpState *statePtr = (TcpState *) instanceData;
-
- if (mode == TCL_MODE_BLOCKING) {
- CLEAR_BITS(statePtr->flags, TCP_ASYNC_SOCKET);
- } else {
- SET_BITS(statePtr->flags, TCP_ASYNC_SOCKET);
- }
- if (TclUnixSetBlockingMode(statePtr->fd, mode) < 0) {
- return errno;
- }
- return 0;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * WaitForConnect --
- *
- * Waits for a connection on an asynchronously opened socket to be
- * completed.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The socket is connected after this function returns.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-WaitForConnect(
- TcpState *statePtr, /* State of the socket. */
- int *errorCodePtr) /* Where to store errors? */
-{
- int timeOut; /* How long to wait. */
- int state; /* Of calling TclWaitForFile. */
-
- /*
- * If an asynchronous connect is in progress, attempt to wait for it to
- * complete before reading.
- */
-
- if (statePtr->flags & TCP_ASYNC_CONNECT) {
- if (statePtr->flags & TCP_ASYNC_SOCKET) {
- timeOut = 0;
- } else {
- timeOut = -1;
- }
- errno = 0;
- state = TclUnixWaitForFile(statePtr->fd,
- TCL_WRITABLE | TCL_EXCEPTION, timeOut);
- if (!(statePtr->flags & TCP_ASYNC_SOCKET)) {
- (void) TclUnixSetBlockingMode(statePtr->fd, TCL_MODE_BLOCKING);
- }
- if (state & TCL_EXCEPTION) {
- return -1;
- }
- if (state & TCL_WRITABLE) {
- CLEAR_BITS(statePtr->flags, TCP_ASYNC_CONNECT);
- } else if (timeOut == 0) {
- *errorCodePtr = errno = EWOULDBLOCK;
- return -1;
- }
- }
- return 0;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TcpInputProc --
- *
- * This function is invoked by the generic IO level to read input from a
- * TCP socket based channel.
- *
- * NOTE: We cannot share code with FilePipeInputProc because here we must
- * use recv to obtain the input from the channel, not read.
- *
- * Results:
- * The number of bytes read is returned or -1 on error. An output
- * argument contains the POSIX error code on error, or zero if no error
- * occurred.
- *
- * Side effects:
- * Reads input from the input device of the channel.
- *
- *----------------------------------------------------------------------
- */
-
- /* ARGSUSED */
-static int
-TcpInputProc(
- ClientData instanceData, /* Socket state. */
- char *buf, /* Where to store data read. */
- int bufSize, /* How much space is available in the
- * buffer? */
- int *errorCodePtr) /* Where to store error code. */
-{
- TcpState *statePtr = (TcpState *) instanceData;
- int bytesRead, state;
-
- *errorCodePtr = 0;
- state = WaitForConnect(statePtr, errorCodePtr);
- if (state != 0) {
- return -1;
- }
- bytesRead = recv(statePtr->fd, buf, (size_t) bufSize, 0);
- if (bytesRead > -1) {
- return bytesRead;
- }
- if (errno == ECONNRESET) {
- /*
- * Turn ECONNRESET into a soft EOF condition.
- */
-
- return 0;
- }
- *errorCodePtr = errno;
- return -1;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TcpOutputProc --
- *
- * This function is invoked by the generic IO level to write output to a
- * TCP socket based channel.
- *
- * NOTE: We cannot share code with FilePipeOutputProc because here we
- * must use send, not write, to get reliable error reporting.
- *
- * Results:
- * The number of bytes written is returned. An output argument is set to
- * a POSIX error code if an error occurred, or zero.
- *
- * Side effects:
- * Writes output on the output device of the channel.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-TcpOutputProc(
- ClientData instanceData, /* Socket state. */
- const char *buf, /* The data buffer. */
- int toWrite, /* How many bytes to write? */
- int *errorCodePtr) /* Where to store error code. */
-{
- TcpState *statePtr = (TcpState *) instanceData;
- int written;
- int state; /* Of waiting for connection. */
-
- *errorCodePtr = 0;
- state = WaitForConnect(statePtr, errorCodePtr);
- if (state != 0) {
- return -1;
- }
- written = send(statePtr->fd, buf, (size_t) toWrite, 0);
- if (written > -1) {
- return written;
- }
- *errorCodePtr = errno;
- return -1;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TcpCloseProc --
- *
- * This function is invoked by the generic IO level to perform
- * channel-type-specific cleanup when a TCP socket based channel is
- * closed.
- *
- * Results:
- * 0 if successful, the value of errno if failed.
- *
- * Side effects:
- * Closes the socket of the channel.
- *
- *----------------------------------------------------------------------
- */
-
- /* ARGSUSED */
-static int
-TcpCloseProc(
- ClientData instanceData, /* The socket to close. */
- Tcl_Interp *interp) /* For error reporting - unused. */
-{
- TcpState *statePtr = (TcpState *) instanceData;
- int errorCode = 0;
-
- /*
- * Delete a file handler that may be active for this socket if this is a
- * server socket - the file handler was created automatically by Tcl as
- * part of the mechanism to accept new client connections. Channel
- * handlers are already deleted in the generic IO channel closing code
- * that called this function, so we do not have to delete them here.
- */
-
- Tcl_DeleteFileHandler(statePtr->fd);
-
- if (close(statePtr->fd) < 0) {
- errorCode = errno;
- }
- ckfree((char *) statePtr);
-
- return errorCode;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TcpGetOptionProc --
- *
- * Computes an option value for a TCP socket based channel, or a list of
- * all options and their values.
- *
- * Note: This code is based on code contributed by John Haxby.
- *
- * Results:
- * A standard Tcl result. The value of the specified option or a list of
- * all options and their values is returned in the supplied DString. Sets
- * Error message if needed.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-TcpGetOptionProc(
- ClientData instanceData, /* Socket state. */
- Tcl_Interp *interp, /* For error reporting - can be NULL. */
- const char *optionName, /* Name of the option to retrieve the value
- * for, or NULL to get all options and their
- * values. */
- Tcl_DString *dsPtr) /* Where to store the computed value;
- * initialized by caller. */
-{
- TcpState *statePtr = (TcpState *) instanceData;
- struct sockaddr_in sockname;
- struct sockaddr_in peername;
- struct hostent *hostEntPtr;
- socklen_t size = sizeof(struct sockaddr_in);
- size_t len = 0;
- char buf[TCL_INTEGER_SPACE];
-
- if (optionName != NULL) {
- len = strlen(optionName);
- }
-
- if ((len > 1) && (optionName[1] == 'e') &&
- (strncmp(optionName, "-error", len) == 0)) {
- socklen_t optlen = sizeof(int);
- int err, ret;
-
- ret = getsockopt(statePtr->fd, SOL_SOCKET, SO_ERROR,
- (char *)&err, &optlen);
- if (ret < 0) {
- err = errno;
- }
- if (err != 0) {
- Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(err), -1);
- }
- return TCL_OK;
- }
-
- if ((len == 0) ||
- ((len > 1) && (optionName[1] == 'p') &&
- (strncmp(optionName, "-peername", len) == 0))) {
- if (getpeername(statePtr->fd, (struct sockaddr *) &peername,
- &size) >= 0) {
- if (len == 0) {
- Tcl_DStringAppendElement(dsPtr, "-peername");
- Tcl_DStringStartSublist(dsPtr);
- }
- Tcl_DStringAppendElement(dsPtr, inet_ntoa(peername.sin_addr));
- hostEntPtr = TclpGetHostByAddr( /* INTL: Native. */
- (char *) &peername.sin_addr,
- sizeof(peername.sin_addr), AF_INET);
- if (hostEntPtr != NULL) {
- Tcl_DString ds;
-
- Tcl_ExternalToUtfDString(NULL, hostEntPtr->h_name, -1, &ds);
- Tcl_DStringAppendElement(dsPtr, Tcl_DStringValue(&ds));
- Tcl_DStringFree(&ds);
- } else {
- Tcl_DStringAppendElement(dsPtr, inet_ntoa(peername.sin_addr));
- }
- TclFormatInt(buf, ntohs(peername.sin_port));
- Tcl_DStringAppendElement(dsPtr, buf);
- if (len == 0) {
- Tcl_DStringEndSublist(dsPtr);
- } else {
- return TCL_OK;
- }
- } else {
- /*
- * getpeername failed - but if we were asked for all the options
- * (len==0), don't flag an error at that point because it could be
- * an fconfigure request on a server socket (which have no peer).
- * Same must be done on win&mac.
- */
-
- if (len) {
- if (interp) {
- Tcl_AppendResult(interp, "can't get peername: ",
- Tcl_PosixError(interp), NULL);
- }
- return TCL_ERROR;
- }
- }
- }
-
- if ((len == 0) ||
- ((len > 1) && (optionName[1] == 's') &&
- (strncmp(optionName, "-sockname", len) == 0))) {
- if (getsockname(statePtr->fd, (struct sockaddr *) &sockname,
- &size) >= 0) {
- if (len == 0) {
- Tcl_DStringAppendElement(dsPtr, "-sockname");
- Tcl_DStringStartSublist(dsPtr);
- }
- Tcl_DStringAppendElement(dsPtr, inet_ntoa(sockname.sin_addr));
- if (sockname.sin_addr.s_addr == INADDR_ANY) {
- /*
- * We don't want to resolve INADDR_ANY; it can sometimes cause
- * problems (and never has a name).
- */
-
- hostEntPtr = NULL;
- } else {
- hostEntPtr = TclpGetHostByAddr( /* INTL: Native. */
- (char *) &sockname.sin_addr,
- sizeof(sockname.sin_addr), AF_INET);
- }
- if (hostEntPtr != NULL) {
- Tcl_DString ds;
-
- Tcl_ExternalToUtfDString(NULL, hostEntPtr->h_name, -1, &ds);
- Tcl_DStringAppendElement(dsPtr, Tcl_DStringValue(&ds));
- Tcl_DStringFree(&ds);
- } else {
- Tcl_DStringAppendElement(dsPtr, inet_ntoa(sockname.sin_addr));
- }
- TclFormatInt(buf, ntohs(sockname.sin_port));
- Tcl_DStringAppendElement(dsPtr, buf);
- if (len == 0) {
- Tcl_DStringEndSublist(dsPtr);
- } else {
- return TCL_OK;
- }
- } else {
- if (interp) {
- Tcl_AppendResult(interp, "can't get sockname: ",
- Tcl_PosixError(interp), NULL);
- }
- return TCL_ERROR;
- }
- }
-
- if (len > 0) {
- return Tcl_BadChannelOption(interp, optionName, "peername sockname");
- }
-
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TcpWatchProc --
- *
- * Initialize the notifier to watch the fd from this channel.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Sets up the notifier so that a future event on the channel will be
- * seen by Tcl.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-WrapNotify(
- ClientData clientData,
- int mask)
-{
- TcpState *statePtr = (TcpState *) clientData;
- int newmask = mask & statePtr->interest;
-
- if (newmask == 0) {
- /*
- * There was no overlap between the states the channel is
- * interested in notifications for, and the states that are
- * reported present on the file descriptor by select(). The
- * only way that can happen is when the channel is interested
- * in a writable condition, and only a readable state is reported
- * present (see TcpWatchProc() below). In that case, signal back
- * to the caller the writable state, which is really an error
- * condition. As an extra check on that assumption, check for
- * a non-zero value of errno before reporting an artificial
- * writable state.
- */
- if (errno == 0) {
- return;
- }
- newmask = TCL_WRITABLE;
- }
- Tcl_NotifyChannel(statePtr->channel, newmask);
-}
-
-static void
-TcpWatchProc(
- ClientData instanceData, /* The socket state. */
- int mask) /* Events of interest; an OR-ed combination of
- * TCL_READABLE, TCL_WRITABLE and
- * TCL_EXCEPTION. */
-{
- TcpState *statePtr = (TcpState *) instanceData;
-
- /*
- * Make sure we don't mess with server sockets since they will never be
- * readable or writable at the Tcl level. This keeps Tcl scripts from
- * interfering with the -accept behavior.
- */
-
- if (!statePtr->acceptProc) {
- if (mask) {
-
- /*
- * Whether it is a bug or feature or otherwise, it is a fact
- * of life that on at least some Linux kernels select() fails
- * to report that a socket file descriptor is writable when
- * the other end of the socket is closed. This is in contrast
- * to the guarantees Tcl makes that its channels become
- * writable and fire writable events on an error conditon.
- * This has caused a leak of file descriptors in a state of
- * background flushing. See Tcl ticket 1758a0b603.
- *
- * As a workaround, when our caller indicates an interest in
- * writable notifications, we must tell the notifier built
- * around select() that we are interested in the readable state
- * of the file descriptor as well, as that is the only reliable
- * means to get notified of error conditions. Then it is the
- * task of WrapNotify() above to untangle the meaning of these
- * channel states and report the chan events as best it can.
- * We save a copy of the mask passed in to assist with that.
- */
-
- statePtr->interest = mask;
- Tcl_CreateFileHandler(statePtr->fd, mask|TCL_READABLE,
- (Tcl_FileProc *) WrapNotify, (ClientData) statePtr);
- } else {
- Tcl_DeleteFileHandler(statePtr->fd);
- }
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TcpGetHandleProc --
- *
- * Called from Tcl_GetChannelHandle to retrieve OS handles from inside a
- * TCP socket based channel.
- *
- * Results:
- * Returns TCL_OK with the fd in handlePtr, or TCL_ERROR if there is no
- * handle for the specified direction.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- /* ARGSUSED */
-static int
-TcpGetHandleProc(
- ClientData instanceData, /* The socket state. */
- int direction, /* Not used. */
- ClientData *handlePtr) /* Where to store the handle. */
-{
- TcpState *statePtr = (TcpState *) instanceData;
-
- *handlePtr = (ClientData) INT2PTR(statePtr->fd);
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * CreateSocket --
- *
- * This function opens a new socket in client or server mode and
- * initializes the TcpState structure.
- *
- * Results:
- * Returns a new TcpState, or NULL with an error in the interp's result,
- * if interp is not NULL.
- *
- * Side effects:
- * Opens a socket.
- *
- *----------------------------------------------------------------------
- */
-
-static TcpState *
-CreateSocket(
- Tcl_Interp *interp, /* For error reporting; can be NULL. */
- int port, /* Port number to open. */
- const char *host, /* Name of host on which to open port. NULL
- * implies INADDR_ANY */
- int server, /* 1 if socket should be a server socket, else
- * 0 for a client socket. */
- const char *myaddr, /* Optional client-side address */
- int myport, /* Optional client-side port */
- int async) /* If nonzero and creating a client socket,
- * attempt to do an async connect. Otherwise
- * do a synchronous connect or bind. */
-{
- int status, sock, asyncConnect, curState;
- struct sockaddr_in sockaddr; /* socket address */
- struct sockaddr_in mysockaddr; /* Socket address for client */
- TcpState *statePtr;
- const char *errorMsg = NULL;
-
- sock = -1;
- if (!CreateSocketAddress(&sockaddr, host, port, 0, &errorMsg)) {
- goto addressError;
- }
- if ((myaddr != NULL || myport != 0) &&
- !CreateSocketAddress(&mysockaddr, myaddr, myport, 1, &errorMsg)) {
- goto addressError;
- }
-
- sock = socket(AF_INET, SOCK_STREAM, 0);
- if (sock < 0) {
- goto addressError;
- }
-
- /*
- * Set the close-on-exec flag so that the socket will not get inherited by
- * child processes.
- */
-
- fcntl(sock, F_SETFD, FD_CLOEXEC);
-
- /*
- * Set kernel space buffering
- */
-
- TclSockMinimumBuffers(sock, SOCKET_BUFSIZE);
-
- asyncConnect = 0;
- status = 0;
- if (server) {
- /*
- * Set up to reuse server addresses automatically and bind to the
- * specified port.
- */
-
- status = 1;
- (void) setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *) &status,
- sizeof(status));
- status = bind(sock, (struct sockaddr *) &sockaddr,
- sizeof(struct sockaddr));
- if (status != -1) {
- status = listen(sock, SOMAXCONN);
- }
- } else {
- if (myaddr != NULL || myport != 0) {
- curState = 1;
- (void) setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
- (char *) &curState, sizeof(curState));
- status = bind(sock, (struct sockaddr *) &mysockaddr,
- sizeof(struct sockaddr));
- if (status < 0) {
- goto bindError;
- }
- }
-
- /*
- * Attempt to connect. The connect may fail at present with an
- * EINPROGRESS but at a later time it will complete. The caller will
- * set up a file handler on the socket if she is interested in being
- * informed when the connect completes.
- */
-
- if (async) {
- status = TclUnixSetBlockingMode(sock, TCL_MODE_NONBLOCKING);
- } else {
- status = 0;
- }
- if (status > -1) {
- status = connect(sock, (struct sockaddr *) &sockaddr,
- sizeof(sockaddr));
- if (status < 0) {
- if (errno == EINPROGRESS) {
- asyncConnect = 1;
- status = 0;
- }
- } else {
- /*
- * Here we are if the connect succeeds. In case of an
- * asynchronous connect we have to reset the channel to
- * blocking mode. This appears to happen not very often, but
- * e.g. on a HP 9000/800 under HP-UX B.11.00 we enter this
- * stage. [Bug: 4388]
- */
-
- if (async) {
- status = TclUnixSetBlockingMode(sock, TCL_MODE_BLOCKING);
- }
- }
- }
- }
-
- bindError:
- if (status < 0) {
- if (interp != NULL) {
- Tcl_AppendResult(interp, "couldn't open socket: ",
- Tcl_PosixError(interp), NULL);
- }
- if (sock != -1) {
- close(sock);
- }
- return NULL;
- }
-
- /*
- * Allocate a new TcpState for this socket.
- */
-
- statePtr = (TcpState *) ckalloc((unsigned) sizeof(TcpState));
- statePtr->flags = 0;
- if (asyncConnect) {
- statePtr->flags = TCP_ASYNC_CONNECT;
- }
- statePtr->interest = 0;
- statePtr->fd = sock;
-
- return statePtr;
-
- addressError:
- if (sock != -1) {
- close(sock);
- }
- if (interp != NULL) {
- Tcl_AppendResult(interp, "couldn't open socket: ",
- Tcl_PosixError(interp), NULL);
- if (errorMsg != NULL) {
- Tcl_AppendResult(interp, " (", errorMsg, ")", NULL);
- }
- }
- return NULL;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * CreateSocketAddress --
- *
- * This function initializes a sockaddr structure for a host and port.
- *
- * Results:
- * 1 if the host was valid, 0 if the host could not be converted to an IP
- * address.
- *
- * Side effects:
- * Fills in the *sockaddrPtr structure.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-CreateSocketAddress(
- struct sockaddr_in *sockaddrPtr, /* Socket address */
- const char *host, /* Host. NULL implies INADDR_ANY */
- int port, /* Port number */
- int willBind, /* Is this an address to bind() to or
- * to connect() to? */
- const char **errorMsgPtr) /* Place to store the error message
- * detail, if available. */
-{
-#ifdef HAVE_GETADDRINFO
- struct addrinfo hints, *resPtr = NULL;
- char *native;
- Tcl_DString ds;
- int result;
-
- if (host == NULL) {
- sockaddrPtr->sin_family = AF_INET;
- sockaddrPtr->sin_addr.s_addr = INADDR_ANY;
- addPort:
- sockaddrPtr->sin_port = htons((unsigned short) (port & 0xFFFF));
- return 1;
- }
-
- (void) memset(&hints, 0, sizeof(struct addrinfo));
- hints.ai_family = AF_INET;
- hints.ai_socktype = SOCK_STREAM;
- if (willBind) {
- hints.ai_flags |= AI_PASSIVE;
- }
-
- /*
- * Note that getaddrinfo() *is* thread-safe. If a platform doesn't get
- * that right, it shouldn't use this part of the code.
- */
-
- native = Tcl_UtfToExternalDString(NULL, host, -1, &ds);
- result = getaddrinfo(native, NULL, &hints, &resPtr);
- Tcl_DStringFree(&ds);
- if (result == 0) {
- memcpy(sockaddrPtr, resPtr->ai_addr, sizeof(struct sockaddr_in));
- freeaddrinfo(resPtr);
- goto addPort;
- }
-
- /*
- * Ought to use gai_strerror() here...
- */
-
- switch (result) {
- case EAI_NONAME:
- case EAI_SERVICE:
-#if defined(EAI_ADDRFAMILY) && EAI_ADDRFAMILY != EAI_NONAME
- case EAI_ADDRFAMILY:
-#endif
-#if defined(EAI_NODATA) && EAI_NODATA != EAI_NONAME
- case EAI_NODATA:
-#endif
- *errorMsgPtr = gai_strerror(result);
- errno = EHOSTUNREACH;
- return 0;
- case EAI_SYSTEM:
- return 0;
- default:
- *errorMsgPtr = gai_strerror(result);
- errno = ENXIO;
- return 0;
- }
-#else /* !HAVE_GETADDRINFO */
- struct in_addr addr; /* For 64/32 bit madness */
-
- (void) memset(sockaddrPtr, '\0', sizeof(struct sockaddr_in));
- sockaddrPtr->sin_family = AF_INET;
- sockaddrPtr->sin_port = htons((unsigned short) (port & 0xFFFF));
- if (host == NULL) {
- addr.s_addr = INADDR_ANY;
- } else {
- struct hostent *hostent; /* Host database entry */
- Tcl_DString ds;
- const char *native;
-
- if (host == NULL) {
- native = NULL;
- } else {
- native = Tcl_UtfToExternalDString(NULL, host, -1, &ds);
- }
- addr.s_addr = inet_addr(native); /* INTL: Native. */
-
- /*
- * This is 0xFFFFFFFF to ensure that it compares as a 32bit -1 on
- * either 32 or 64 bits systems.
- */
-
- if (addr.s_addr == 0xFFFFFFFF) {
- hostent = TclpGetHostByName(native); /* INTL: Native. */
- if (hostent != NULL) {
- memcpy(&addr, hostent->h_addr_list[0],
- (size_t) hostent->h_length);
- } else {
-#ifdef EHOSTUNREACH
- errno = EHOSTUNREACH;
-#else /* !EHOSTUNREACH */
-#ifdef ENXIO
- errno = ENXIO;
-#endif /* ENXIO */
-#endif /* EHOSTUNREACH */
- if (native != NULL) {
- Tcl_DStringFree(&ds);
- }
- return 0; /* Error. */
- }
- }
- if (native != NULL) {
- Tcl_DStringFree(&ds);
- }
- }
-
- /*
- * NOTE: On 64 bit machines the assignment below is rumored to not do the
- * right thing. Please report errors related to this if you observe
- * incorrect behavior on 64 bit machines such as DEC Alphas. Should we
- * modify this code to do an explicit memcpy?
- */
-
- sockaddrPtr->sin_addr.s_addr = addr.s_addr;
- return 1; /* Success. */
-#endif /* HAVE_GETADDRINFO */
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_OpenTcpClient --
- *
- * Opens a TCP client socket and creates a channel around it.
- *
- * Results:
- * The channel or NULL if failed. An error message is returned in the
- * interpreter on failure.
- *
- * Side effects:
- * Opens a client socket and creates a new channel.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Channel
-Tcl_OpenTcpClient(
- Tcl_Interp *interp, /* For error reporting; can be NULL. */
- int port, /* Port number to open. */
- const char *host, /* Host on which to open port. */
- const char *myaddr, /* Client-side address */
- int myport, /* Client-side port */
- int async) /* If nonzero, attempt to do an asynchronous
- * connect. Otherwise we do a blocking
- * connect. */
-{
- TcpState *statePtr;
- char channelName[16 + TCL_INTEGER_SPACE];
-
- /*
- * Create a new client socket and wrap it in a channel.
- */
-
- statePtr = CreateSocket(interp, port, host, 0, myaddr, myport, async);
- if (statePtr == NULL) {
- return NULL;
- }
-
- statePtr->acceptProc = NULL;
- statePtr->acceptProcData = NULL;
-
- sprintf(channelName, "sock%d", statePtr->fd);
-
- statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
- (ClientData) statePtr, (TCL_READABLE | TCL_WRITABLE));
- if (Tcl_SetChannelOption(interp, statePtr->channel, "-translation",
- "auto crlf") == TCL_ERROR) {
- Tcl_Close(NULL, statePtr->channel);
- return NULL;
- }
- return statePtr->channel;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_MakeTcpClientChannel --
- *
- * Creates a Tcl_Channel from an existing client TCP socket.
- *
- * Results:
- * The Tcl_Channel wrapped around the preexisting TCP socket.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Channel
-Tcl_MakeTcpClientChannel(
- ClientData sock) /* The socket to wrap up into a channel. */
-{
- return MakeTcpClientChannelMode(sock, (TCL_READABLE | TCL_WRITABLE));
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * MakeTcpClientChannelMode --
- *
- * Creates a Tcl_Channel from an existing client TCP socket
- * with given mode.
- *
- * Results:
- * The Tcl_Channel wrapped around the preexisting TCP socket.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static Tcl_Channel
-MakeTcpClientChannelMode(
- ClientData sock, /* The socket to wrap up into a channel. */
- int mode) /* ORed combination of TCL_READABLE and
- * TCL_WRITABLE to indicate file mode. */
-{
- TcpState *statePtr;
- char channelName[16 + TCL_INTEGER_SPACE];
-
- statePtr = (TcpState *) ckalloc((unsigned) sizeof(TcpState));
- statePtr->fd = PTR2INT(sock);
- statePtr->flags = 0;
- statePtr->interest = 0;
- statePtr->acceptProc = NULL;
- statePtr->acceptProcData = NULL;
-
- sprintf(channelName, "sock%d", statePtr->fd);
-
- statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
- (ClientData) statePtr, mode);
- if (Tcl_SetChannelOption(NULL, statePtr->channel, "-translation",
- "auto crlf") == TCL_ERROR) {
- Tcl_Close(NULL, statePtr->channel);
- return NULL;
- }
- return statePtr->channel;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_OpenTcpServer --
- *
- * Opens a TCP server socket and creates a channel around it.
- *
- * Results:
- * The channel or NULL if failed. If an error occurred, an error message
- * is left in the interp's result if interp is not NULL.
- *
- * Side effects:
- * Opens a server socket and creates a new channel.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Channel
-Tcl_OpenTcpServer(
- Tcl_Interp *interp, /* For error reporting - may be NULL. */
- int port, /* Port number to open. */
- const char *myHost, /* Name of local host. */
- Tcl_TcpAcceptProc *acceptProc,
- /* Callback for accepting connections from new
- * clients. */
- ClientData acceptProcData) /* Data for the callback. */
-{
- TcpState *statePtr;
- char channelName[16 + TCL_INTEGER_SPACE];
-
- /*
- * Create a new client socket and wrap it in a channel.
- */
-
- statePtr = CreateSocket(interp, port, myHost, 1, NULL, 0, 0);
- if (statePtr == NULL) {
- return NULL;
- }
-
- statePtr->acceptProc = acceptProc;
- statePtr->acceptProcData = acceptProcData;
-
- /*
- * Set up the callback mechanism for accepting connections from new
- * clients.
- */
-
- Tcl_CreateFileHandler(statePtr->fd, TCL_READABLE, TcpAccept,
- (ClientData) statePtr);
- sprintf(channelName, "sock%d", statePtr->fd);
- statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
- (ClientData) statePtr, 0);
- return statePtr->channel;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TcpAccept --
- * Accept a TCP socket connection. This is called by the event loop.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Creates a new connection socket. Calls the registered callback for the
- * connection acceptance mechanism.
- *
- *----------------------------------------------------------------------
- */
-
- /* ARGSUSED */
-static void
-TcpAccept(
- ClientData data, /* Callback token. */
- int mask) /* Not used. */
-{
- TcpState *sockState; /* Client data of server socket. */
- int newsock; /* The new client socket */
- TcpState *newSockState; /* State for new socket. */
- struct sockaddr_in addr; /* The remote address */
- socklen_t len; /* For accept interface */
- char channelName[16 + TCL_INTEGER_SPACE];
-
- sockState = (TcpState *) data;
-
- len = sizeof(struct sockaddr_in);
- newsock = accept(sockState->fd, (struct sockaddr *) &addr, &len);
- if (newsock < 0) {
- return;
- }
-
- /*
- * Set close-on-exec flag to prevent the newly accepted socket from being
- * inherited by child processes.
- */
-
- (void) fcntl(newsock, F_SETFD, FD_CLOEXEC);
-
- newSockState = (TcpState *) ckalloc((unsigned) sizeof(TcpState));
-
- newSockState->flags = 0;
- newSockState->interest = 0;
- newSockState->fd = newsock;
- newSockState->acceptProc = NULL;
- newSockState->acceptProcData = NULL;
-
- sprintf(channelName, "sock%d", newsock);
- newSockState->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
- (ClientData) newSockState, (TCL_READABLE | TCL_WRITABLE));
-
- Tcl_SetChannelOption(NULL, newSockState->channel, "-translation",
- "auto crlf");
-
- if (sockState->acceptProc != NULL) {
- (*sockState->acceptProc)(sockState->acceptProcData,
- newSockState->channel, inet_ntoa(addr.sin_addr),
- ntohs(addr.sin_port));
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
* TclpGetDefaultStdChannel --
*
* Creates channels for standard input, standard output or standard error
@@ -2972,7 +1606,7 @@ TclpGetDefaultStdChannel(
#undef ZERO_OFFSET
#undef ERROR_OFFSET
- channel = Tcl_MakeFileChannel((ClientData) INT2PTR(fd), mode);
+ channel = Tcl_MakeFileChannel(INT2PTR(fd), mode);
if (channel == NULL) {
return NULL;
}
@@ -3032,15 +1666,19 @@ Tcl_GetOpenFile(
FILE *f;
chan = Tcl_GetChannel(interp, chanID, &chanMode);
- if (chan == (Tcl_Channel) NULL) {
+ if (chan == NULL) {
return TCL_ERROR;
}
- if ((forWriting) && ((chanMode & TCL_WRITABLE) == 0)) {
- Tcl_AppendResult(interp, "\"", chanID, "\" wasn't opened for writing",
+ if (forWriting && !(chanMode & TCL_WRITABLE)) {
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "\"%s\" wasn't opened for writing", chanID));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "CHANNEL", "NOT_WRITABLE",
NULL);
return TCL_ERROR;
- } else if ((!forWriting) && ((chanMode & TCL_READABLE) == 0)) {
- Tcl_AppendResult(interp, "\"", chanID, "\" wasn't opened for reading",
+ } else if (!forWriting && !(chanMode & TCL_READABLE)) {
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "\"%s\" wasn't opened for reading", chanID));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "CHANNEL", "NOT_READABLE",
NULL);
return TCL_ERROR;
}
@@ -3056,11 +1694,10 @@ Tcl_GetOpenFile(
#ifdef SUPPORTS_TTY
|| (chanTypePtr == &ttyChannelType)
#endif /* SUPPORTS_TTY */
- || (chanTypePtr == &tcpChannelType)
+ || (strcmp(chanTypePtr->typeName, "tcp") == 0)
|| (strcmp(chanTypePtr->typeName, "pipe") == 0)) {
if (Tcl_GetChannelHandle(chan,
- (forWriting ? TCL_WRITABLE : TCL_READABLE),
- (ClientData*) &data) == TCL_OK) {
+ (forWriting ? TCL_WRITABLE : TCL_READABLE), &data) == TCL_OK) {
fd = PTR2INT(data);
/*
@@ -3071,17 +1708,21 @@ Tcl_GetOpenFile(
f = fdopen(fd, (forWriting ? "w" : "r"));
if (f == NULL) {
- Tcl_AppendResult(interp, "cannot get a FILE * for \"", chanID,
- "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "cannot get a FILE * for \"%s\"", chanID));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "CHANNEL",
+ "FILE_FAILURE", NULL);
return TCL_ERROR;
}
- *filePtr = (ClientData) f;
+ *filePtr = f;
return TCL_OK;
}
}
- Tcl_AppendResult(interp, "\"", chanID,
- "\" cannot be used to get a FILE *", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "\"%s\" cannot be used to get a FILE *", chanID));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "CHANNEL", "NO_DESCRIPTOR",
+ NULL);
return TCL_ERROR;
}
@@ -3127,7 +1768,7 @@ TclUnixWaitForFile(
int numFound, result = 0;
fd_set readableMask;
fd_set writableMask;
- fd_set exceptionalMask;
+ fd_set exceptionMask;
#ifndef _DARWIN_C_SOURCE
/*
@@ -3168,7 +1809,7 @@ TclUnixWaitForFile(
FD_ZERO(&readableMask);
FD_ZERO(&writableMask);
- FD_ZERO(&exceptionalMask);
+ FD_ZERO(&exceptionMask);
/*
* Loop in a mini-event loop of our own, waiting for either the file to
@@ -3193,14 +1834,14 @@ TclUnixWaitForFile(
* Setup the select masks for the fd.
*/
- if (mask & TCL_READABLE) {
+ if (mask & TCL_READABLE) {
FD_SET(fd, &readableMask);
}
- if (mask & TCL_WRITABLE) {
+ if (mask & TCL_WRITABLE) {
FD_SET(fd, &writableMask);
}
if (mask & TCL_EXCEPTION) {
- FD_SET(fd, &exceptionalMask);
+ FD_SET(fd, &exceptionMask);
}
/*
@@ -3208,15 +1849,15 @@ TclUnixWaitForFile(
*/
numFound = select(fd + 1, &readableMask, &writableMask,
- &exceptionalMask, timeoutPtr);
+ &exceptionMask, timeoutPtr);
if (numFound == 1) {
- if (FD_ISSET(fd, &readableMask)) {
+ if (FD_ISSET(fd, &readableMask)) {
SET_BITS(result, TCL_READABLE);
}
- if (FD_ISSET(fd, &writableMask)) {
+ if (FD_ISSET(fd, &writableMask)) {
SET_BITS(result, TCL_WRITABLE);
}
- if (FD_ISSET(fd, &exceptionalMask)) {
+ if (FD_ISSET(fd, &exceptionMask)) {
SET_BITS(result, TCL_EXCEPTION);
}
result &= mask;
@@ -3269,7 +1910,7 @@ FileTruncateProc(
ClientData instanceData,
Tcl_WideInt length)
{
- FileState *fsPtr = (FileState *) instanceData;
+ FileState *fsPtr = instanceData;
int result;
#ifdef HAVE_TYPE_OFF64_T
@@ -3292,7 +1933,5 @@ FileTruncateProc(
* mode: c
* c-basic-offset: 4
* fill-column: 78
- * tab-width: 8
- * indent-tabs-mode: nil
* End:
*/
generated by cgit v0.12 at 2024-11-01 13:17:47 (GMT)