diff options
Diffstat (limited to 'stdio-common')
| -rw-r--r-- | stdio-common/Makefile | 2 | ||||
| -rw-r--r-- | stdio-common/gentempfd.c | 26 | ||||
| -rw-r--r-- | stdio-common/tmpfile.c | 26 |
3 files changed, 44 insertions, 10 deletions
diff --git a/stdio-common/Makefile b/stdio-common/Makefile index 397e0c2579..2c3c2e5d11 100644 --- a/stdio-common/Makefile +++ b/stdio-common/Makefile @@ -39,7 +39,7 @@ routines := \ flockfile ftrylockfile funlockfile \ isoc99_scanf isoc99_vscanf isoc99_fscanf isoc99_vfscanf isoc99_sscanf \ isoc99_vsscanf \ - psiginfo + psiginfo gentempfd aux := errlist siglist printf-parsemb printf-parsewc fxprintf diff --git a/stdio-common/gentempfd.c b/stdio-common/gentempfd.c new file mode 100644 index 0000000000..d40c57dd89 --- /dev/null +++ b/stdio-common/gentempfd.c @@ -0,0 +1,26 @@ +/* Generate a temporary file descriptor. Generic/POSIX version. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <stdio.h> + +int +__gen_tempfd (int flags) +{ + return -1; +} +libc_hidden_def (__gen_tempfd) diff --git a/stdio-common/tmpfile.c b/stdio-common/tmpfile.c index e6030be0af..c5cbb688f4 100644 --- a/stdio-common/tmpfile.c +++ b/stdio-common/tmpfile.c @@ -34,23 +34,31 @@ FILE * tmpfile (void) { - char buf[FILENAME_MAX]; int fd; FILE *f; - - if (__path_search (buf, FILENAME_MAX, NULL, "tmpf", 0)) - return NULL; int flags = 0; #ifdef FLAGS flags = FLAGS; #endif - fd = __gen_tempname (buf, 0, flags, __GT_FILE); + + /* First try a system specific method. */ + fd = __gen_tempfd (flags); + if (fd < 0) - return NULL; + { + char buf[FILENAME_MAX]; + + if (__path_search (buf, sizeof buf, NULL, "tmpf", 0)) + return NULL; + + fd = __gen_tempname (buf, 0, flags, __GT_FILE); + if (fd < 0) + return NULL; - /* Note that this relies on the Unix semantics that - a file is not really removed until it is closed. */ - (void) __unlink (buf); + /* Note that this relies on the Unix semantics that + a file is not really removed until it is closed. */ + (void) __unlink (buf); + } if ((f = __fdopen (fd, "w+b")) == NULL) __close (fd); |