diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | unix/tclUnixCompat.c | 83 |
2 files changed, 69 insertions, 21 deletions
@@ -1,5 +1,12 @@ 2006-09-07 Zoran Vasiljevic <vasiljevic@users.sourceforge.net> + * unix/tclUnixCompat.c: Added fallback to MT-unsafe + library calls if TCL_THREADS is not defined. + Fixed alignment of arrays copied by CopyArrayi() to be + on the sizeof(char *) boundary. + +2006-09-07 Zoran Vasiljevic <vasiljevic@users.sourceforge.net> + * unix/tclUnixChan.c Rewritten MT-safe wrappers to * unix/tclUnixCompat.c return ptrs to TSD storage * unix/tclUnixFCmd.c making them all look like their diff --git a/unix/tclUnixCompat.c b/unix/tclUnixCompat.c index 0fc0903..b0e0ae8 100644 --- a/unix/tclUnixCompat.c +++ b/unix/tclUnixCompat.c @@ -6,7 +6,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclUnixCompat.c,v 1.3 2006/09/07 09:17:33 vasiljevic Exp $ + * RCS: @(#) $Id: tclUnixCompat.c,v 1.4 2006/09/07 18:53:11 vasiljevic Exp $ * */ @@ -18,10 +18,22 @@ #include <string.h> /* + * Used to pad structures at size'd boundaries + */ + +#define PadBuffer(buffer, length, size) \ + if (((length) % (size))) { \ + (buffer) += ((length) % (size)); \ + (length) += ((length) % (size)); \ + } + +/* * Per-thread private storage used to store values * returned from MT-unsafe library calls. */ +#ifdef TCL_THREADS + typedef struct ThreadSpecificData { struct passwd pwd; @@ -45,8 +57,8 @@ static Tcl_ThreadDataKey dataKey; Tcl_Mutex compatLock; -#if !defined(HAVE_GETHOSTBYNAME_R) || !defined(HAVE_GETHOSTBYADDR_R) || \ - !defined(HAVE_GETPWNAM_R) || !defined(HAVE_GETGRNAM_R) +#if (!defined(HAVE_GETHOSTBYNAME_R) && !defined(HAVE_GETHOSTBYADDR_R)) || \ + (!defined(HAVE_GETPWUID_R) && !defined(HAVE_GETGRGID_R)) /* @@ -140,10 +152,11 @@ CopyString(char *src, char *buf, int buflen) return len; } +#endif /* !defined(HAVE_GETHOSTBYNAME_R) && !defined(HAVE_GETHOSTBYADDR_R) && \ + !defined(HAVE_GETPWUID_R) && !defined(HAVE_GETGRGID_R) */ -#endif /* !defined(HAVE_GETHOSTBYNAME_R) || !defined(HAVE_GETHOSTBYADDR_R) || - !defined(HAVE_GETPWNAM_R) || !defined(HAVE_GETGRNAM_R) */ +#if !defined(HAVE_GETHOSTBYNAME_R) && !defined(HAVE_GETHOSTBYADDR_R) /* *--------------------------------------------------------------------------- @@ -162,7 +175,6 @@ CopyString(char *src, char *buf, int buflen) *--------------------------------------------------------------------------- */ -#if !defined(HAVE_GETHOSTBYNAME_R) || !defined(HAVE_GETHOSTBYADDR_R) static int CopyHostent(struct hostent *tgtPtr, char *buf, int buflen) { @@ -179,6 +191,7 @@ CopyHostent(struct hostent *tgtPtr, char *buf, int buflen) len += copied; p = buf + len; + PadBuffer(p, len, sizeof(char *)); copied = CopyArray(tgtPtr->h_aliases, -1, p, buflen - len); if (copied == -1) { goto range; @@ -187,6 +200,7 @@ CopyHostent(struct hostent *tgtPtr, char *buf, int buflen) len += copied; p += len; + PadBuffer(p, len, sizeof(char *)); copied = CopyArray(tgtPtr->h_addr_list, tgtPtr->h_length, p, buflen - len); if (copied == -1) { goto range; @@ -195,8 +209,9 @@ CopyHostent(struct hostent *tgtPtr, char *buf, int buflen) return 0; } -#endif /* !defined(HAVE_GETHOSTBYNAME_R) || !defined(HAVE_GETHOSTBYADDR_R) */ +#endif /* !defined(HAVE_GETHOSTBYNAME_R) && !defined(HAVE_GETHOSTBYADDR_R) */ +#if !defined(HAVE_GETPWUID_R) /* *--------------------------------------------------------------------------- @@ -216,7 +231,6 @@ CopyHostent(struct hostent *tgtPtr, char *buf, int buflen) *--------------------------------------------------------------------------- */ -#if !defined(HAVE_GETPWNAM_R) || !defined(HAVE_GETPWUID_R) static int CopyPwd(struct passwd *tgtPtr, char *buf, int buflen) { @@ -257,8 +271,9 @@ CopyPwd(struct passwd *tgtPtr, char *buf, int buflen) return 0; } -#endif /* HAVE_GETPWNAM_R || HAVE_GETPWUID_R*/ +#endif /* !defined(HAVE_GETPWUID_R) */ +#if !defined(HAVE_GETGRGID_R) /* *--------------------------------------------------------------------------- @@ -277,7 +292,6 @@ CopyPwd(struct passwd *tgtPtr, char *buf, int buflen) *--------------------------------------------------------------------------- */ -#if !defined(HAVE_GETGRNAM_R) || !defined(HAVE_GETGRGID_R) static int CopyGrp(struct group *tgtPtr, char *buf, int buflen) { @@ -305,6 +319,7 @@ CopyGrp(struct group *tgtPtr, char *buf, int buflen) p = buf + len; /* Copy group members */ + PadBuffer(p, len, sizeof(char *)); copied = CopyArray((char **)tgtPtr->gr_mem, -1, p, buflen - len); if (copied == -1) { goto range; @@ -313,7 +328,9 @@ CopyGrp(struct group *tgtPtr, char *buf, int buflen) return 0; } -#endif /* HAVE_GETGRNAM_R || HAVE_GETGRGID_R*/ +#endif /* !defined(HAVE_GETGRGID_R) */ + +#endif /* TCL_THREADS */ /* @@ -335,13 +352,16 @@ CopyGrp(struct group *tgtPtr, char *buf, int buflen) struct passwd * TclpGetPwNam(const char *name) -{ +{ +#if !defined(TCL_THREADS) + return getpwnam(name); +#else ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); #if defined(HAVE_GETPWNAM_R_5) - struct passwd *pwPtr; - return (getpwnam_r(name, &tsdPtr->pwd, tsdPtr->pbuf, sizeof(tsdPtr->pbuf), - &pwPtr) == 0) ? &tsdPtr->pwd : NULL; + struct passwd *pwPtr = NULL; + return (getpwnam_r(name, &tsdPtr->pwd, tsdPtr->pbuf, sizeof(tsdPtr->pbuf), + &pwPtr) == 0 && pwPtr != NULL) ? &tsdPtr->pwd : NULL; #elif defined(HAVE_GETPWNAM_R_4) return getpwnam_r(name, &tsdPtr->pwd, tsdPtr->pbuf, sizeof(tsdPtr->pbuf)); @@ -361,6 +381,7 @@ TclpGetPwNam(const char *name) return pwPtr; #endif return NULL; /* Not reached */ +#endif /* TCL_THREADS */ } @@ -384,12 +405,15 @@ TclpGetPwNam(const char *name) struct passwd * TclpGetPwUid(uid_t uid) { +#if !defined(TCL_THREADS) + return getpwuid(uid); +#else ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); #if defined(HAVE_GETPWUID_R_5) - struct passwd *pwPtr; + struct passwd *pwPtr = NULL; return (getpwuid_r(uid, &tsdPtr->pwd, tsdPtr->pbuf, sizeof(tsdPtr->pbuf), - &pwPtr) == 0) ? &tsdPtr->pwd : NULL; + &pwPtr) == 0 && pwPtr != NULL) ? &tsdPtr->pwd : NULL; #elif defined(HAVE_GETPWUID_R_4) return getpwuid_r(uid, &tsdPtr->pwd, tsdPtr->pbuf, sizeof(tsdPtr->pbuf)); @@ -409,6 +433,7 @@ TclpGetPwUid(uid_t uid) return pwPtr; #endif return NULL; /* Not reached */ +#endif /* TCL_THREADS */ } @@ -432,12 +457,15 @@ TclpGetPwUid(uid_t uid) struct group * TclpGetGrNam(const char *name) { +#if !defined(TCL_THREADS) + return getgrnam(name); +#else ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); #if defined(HAVE_GETGRNAM_R_5) - struct group *grPtr; + struct group *grPtr = NULL; return (getgrnam_r(name, &tsdPtr->grp, tsdPtr->gbuf, sizeof(tsdPtr->gbuf), - &grPtr) == 0) ? &tsdPtr->grp : NULL; + &grPtr) == 0 && grPtr != NULL) ? &tsdPtr->grp : NULL; #elif defined(HAVE_GETGRNAM_R_4) return getgrnam_r(name, &tsdPtr->grp, tsdPtr->gbuf, sizeof(tsdPtr->gbuf)); @@ -457,6 +485,7 @@ TclpGetGrNam(const char *name) return grPtr; #endif return NULL; /* Not reached */ +#endif /* TCL_THREADS */ } @@ -480,12 +509,15 @@ TclpGetGrNam(const char *name) struct group * TclpGetGrGid(gid_t gid) { +#if !defined(TCL_THREADS) + return getgrgid(gid); +#else ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); #if defined(HAVE_GETGRGID_R_5) - struct group *grPtr; + struct group *grPtr = NULL; return (getgrgid_r(gid, &tsdPtr->grp, tsdPtr->gbuf, sizeof(tsdPtr->gbuf), - &grPtr) == 0) ? &tsdPtr->grp : NULL; + &grPtr) == 0 && grPtr != NULL) ? &tsdPtr->grp : NULL; #elif defined(HAVE_GETGRGID_R_4) return getgrgid_r(gid, &tsdPtr->grp, tsdPtr->gbuf, sizeof(tsdPtr->gbuf)); @@ -505,6 +537,7 @@ TclpGetGrGid(gid_t gid) return grPtr; #endif return NULL; /* Not reached */ +#endif /* TCL_THREADS */ } @@ -528,6 +561,9 @@ TclpGetGrGid(gid_t gid) struct hostent * TclpGetHostByName(const char *name) { +#if !defined(TCL_THREADS) + return gethostbyname(name); +#else ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); #if defined(HAVE_GETHOSTBYNAME_R_5) @@ -562,6 +598,7 @@ TclpGetHostByName(const char *name) return hePtr; #endif return NULL; /* Not reached */ +#endif /* TCL_THREADS */ } @@ -585,6 +622,9 @@ TclpGetHostByName(const char *name) struct hostent * TclpGetHostByAddr(const char *addr, int length, int type) { +#if !defined(TCL_THREADS) + return gethostbyaddr(addr, length, type); +#else ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); #if defined(HAVE_GETHOSTBYADDR_R_7) @@ -614,4 +654,5 @@ TclpGetHostByAddr(const char *addr, int length, int type) return hePtr; #endif return NULL; /* Not reached */ +#endif /* TCL_THREADS */ } |