diff options
Diffstat (limited to 'generic/tclIOSock.c')
| -rw-r--r-- | generic/tclIOSock.c | 112 |
1 files changed, 73 insertions, 39 deletions
diff --git a/generic/tclIOSock.c b/generic/tclIOSock.c index f69d30f..6abfa60 100644 --- a/generic/tclIOSock.c +++ b/generic/tclIOSock.c @@ -12,18 +12,23 @@ #include "tclInt.h" #if defined(_WIN32) && defined(UNICODE) -/* On Windows, we need to do proper Unicode->UTF-8 conversion. */ +/* + * On Windows, we need to do proper Unicode->UTF-8 conversion. + */ -typedef struct ThreadSpecificData { +typedef struct { int initialized; Tcl_DString errorMsg; /* UTF-8 encoded error-message */ } ThreadSpecificData; static Tcl_ThreadDataKey dataKey; #undef gai_strerror -static const char *gai_strerror(int code) { +static const char * +gai_strerror( + int code) +{ ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - + if (tsdPtr->initialized) { Tcl_DStringFree(&tsdPtr->errorMsg); } else { @@ -56,8 +61,8 @@ static const char *gai_strerror(int code) { int TclSockGetPort( Tcl_Interp *interp, - const char *string, /* Integer or service name */ - const char *proto, /* "tcp" or "udp", typically */ + const char *string, /* Integer or service name */ + const char *proto, /* "tcp" or "udp", typically */ int *portPtr) /* Return port number */ { struct servent *sp; /* Protocol info for named services */ @@ -126,7 +131,7 @@ TclSockMinimumBuffers( } len = sizeof(int); getsockopt((SOCKET)(size_t) sock, SOL_SOCKET, SO_RCVBUF, - (char *) ¤t, &len); + (char *) ¤t, &len); if (current < size) { len = sizeof(int); setsockopt((SOCKET)(size_t) sock, SOL_SOCKET, SO_RCVBUF, @@ -154,15 +159,15 @@ TclSockMinimumBuffers( int TclCreateSocketAddress( - Tcl_Interp *interp, /* Interpreter for querying - * the desired socket family */ - struct addrinfo **addrlist, /* Socket address list */ - 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. */ + Tcl_Interp *interp, /* Interpreter for querying the desired socket + * family */ + struct addrinfo **addrlist, /* Socket address list */ + 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. */ { struct addrinfo hints; struct addrinfo *p; @@ -171,7 +176,7 @@ TclCreateSocketAddress( char *native = NULL, portbuf[TCL_INTEGER_SPACE], *portstring; const char *family = NULL; Tcl_DString ds; - int result, i; + int result; if (host != NULL) { native = Tcl_UtfToExternalDString(NULL, host, -1, &ds); @@ -181,30 +186,31 @@ TclCreateSocketAddress( * Workaround for OSX's apparent inability to resolve "localhost", "0" * when the loopback device is the only available network interface. */ + if (host != NULL && port == 0) { - portstring = NULL; + portstring = NULL; } else { - TclFormatInt(portbuf, port); - portstring = portbuf; + TclFormatInt(portbuf, port); + portstring = portbuf; } - + (void) memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; - /* - * Magic variable to enforce a certain address family - to be superseded - * by a TIP that adds explicit switches to [socket] + /* + * Magic variable to enforce a certain address family; to be superseded + * by a TIP that adds explicit switches to [socket]. */ if (interp != NULL) { - family = Tcl_GetVar(interp, "::tcl::unsupported::socketAF", 0); - if (family != NULL) { - if (strcmp(family, "inet") == 0) { - hints.ai_family = AF_INET; - } else if (strcmp(family, "inet6") == 0) { - hints.ai_family = AF_INET6; - } - } + family = Tcl_GetVar2(interp, "::tcl::unsupported::socketAF", NULL, 0); + if (family != NULL) { + if (strcmp(family, "inet") == 0) { + hints.ai_family = AF_INET; + } else if (strcmp(family, "inet6") == 0) { + hints.ai_family = AF_INET6; + } + } } hints.ai_socktype = SOCK_STREAM; @@ -214,7 +220,7 @@ TclCreateSocketAddress( * We found some problems when using AI_ADDRCONFIG, e.g. on systems that * have no networking besides the loopback interface and want to resolve * localhost. See [Bugs 3385024, 3382419, 3382431]. As the advantage of - * using AI_ADDRCONFIG in situations where it works, is probably low, + * using AI_ADDRCONFIG is probably low even in situations where it works, * we'll leave it out for now. After all, it is just an optimisation. * * Missing on: OpenBSD, NetBSD. @@ -228,7 +234,7 @@ TclCreateSocketAddress( if (willBind) { hints.ai_flags |= AI_PASSIVE; - } + } result = getaddrinfo(native, portstring, &hints, addrlist); @@ -251,6 +257,7 @@ TclCreateSocketAddress( * * There might be more elegant/efficient ways to do this. */ + if (willBind) { for (p = *addrlist; p != NULL; p = p->ai_next) { if (p->ai_family == AF_INET) { @@ -279,15 +286,42 @@ TclCreateSocketAddress( *addrlist = v4head; } } - i = 0; - for (p = *addrlist; p != NULL; p = p->ai_next) { - i++; - } - return 1; } /* + *---------------------------------------------------------------------- + * + * 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, + int port, + const char *host, + Tcl_TcpAcceptProc *acceptProc, + ClientData callbackData) +{ + char portbuf[TCL_INTEGER_SPACE]; + + TclFormatInt(portbuf, port); + return Tcl_OpenTcpServerEx(interp, portbuf, host, TCL_TCPSERVER_REUSEADDR, + acceptProc, callbackData); +} + +/* * Local Variables: * mode: c * c-basic-offset: 4 |