X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ftmpfile.c;h=9e67ffd848df04fc73458c35486c22ea20bffbd1;hb=bbfcd2f1a92c9bdbb8d7d7d0a8a8c6665c316747;hp=543e363dedf88709aa5629222a825ce1aeefe0ec;hpb=57fdfd3f8ec62b105c53bcdf6f127c35c7fe7391;p=gnulib.git diff --git a/lib/tmpfile.c b/lib/tmpfile.c index 543e363de..9e67ffd84 100644 --- a/lib/tmpfile.c +++ b/lib/tmpfile.c @@ -1,5 +1,5 @@ /* Create a temporary file. - Copyright (C) 2007 Free Software Foundation, Inc. + Copyright (C) 2007, 2009-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -37,6 +37,9 @@ #include "tempname.h" #include "tmpdir.h" +/* PATH_MAX is guaranteed to be defined, because this replacement is only + used on native Windows. */ + /* On Windows, opening a file with _O_TEMPORARY has the effect of passing the FILE_FLAG_DELETE_ON_CLOSE flag to CreateFile(), which has the effect of deleting the file when it is closed - even when the program crashes. @@ -51,10 +54,15 @@ supports_delete_on_close () { OSVERSIONINFO v; + /* According to + + this structure must be initialised as follows: */ + v.dwOSVersionInfoSize = sizeof (OSVERSIONINFO); + if (GetVersionEx (&v)) - known = (v.dwPlatformId == VER_PLATFORM_WIN32_NT ? 1 : -1); + known = (v.dwPlatformId == VER_PLATFORM_WIN32_NT ? 1 : -1); else - known = -1; + known = -1; } return (known > 0); } @@ -75,49 +83,49 @@ tmpfile (void) char xtemplate[PATH_MAX]; if (path_search (xtemplate, PATH_MAX, dir, NULL, true) >= 0) - { - size_t len = strlen (xtemplate); - int o_temporary = (supports_delete_on_close () ? _O_TEMPORARY : 0); - int fd; - - do - { - memcpy (&xtemplate[len - 6], "XXXXXX", 6); - if (gen_tempname (xtemplate, GT_NOCREATE) < 0) - { - fd = -1; - break; - } - - fd = _open (xtemplate, - _O_CREAT | _O_EXCL | o_temporary - | _O_RDWR | _O_BINARY, - _S_IREAD | _S_IWRITE); - } - while (fd < 0 && errno == EEXIST); - - if (fd >= 0) - { - FILE *fp = _fdopen (fd, "w+b"); - - if (fp != NULL) - return fp; - else - { - int saved_errno = errno; - _close (fd); - errno = saved_errno; - } - } - } + { + size_t len = strlen (xtemplate); + int o_temporary = (supports_delete_on_close () ? _O_TEMPORARY : 0); + int fd; + + do + { + memcpy (&xtemplate[len - 6], "XXXXXX", 6); + if (gen_tempname (xtemplate, 0, 0, GT_NOCREATE) < 0) + { + fd = -1; + break; + } + + fd = _open (xtemplate, + _O_CREAT | _O_EXCL | o_temporary + | _O_RDWR | _O_BINARY, + _S_IREAD | _S_IWRITE); + } + while (fd < 0 && errno == EEXIST); + + if (fd >= 0) + { + FILE *fp = _fdopen (fd, "w+b"); + + if (fp != NULL) + return fp; + else + { + int saved_errno = errno; + _close (fd); + errno = saved_errno; + } + } + } } else { if (retval > 0) - errno = ENAMETOOLONG; + errno = ENAMETOOLONG; else - /* Ideally this should translate GetLastError () to an errno value. */ - errno = ENOENT; + /* Ideally this should translate GetLastError () to an errno value. */ + errno = ENOENT; } return NULL;