diff options
Diffstat (limited to 'mit-pthreads/stdio/tmpfile.c')
| -rw-r--r-- | mit-pthreads/stdio/tmpfile.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/mit-pthreads/stdio/tmpfile.c b/mit-pthreads/stdio/tmpfile.c new file mode 100644 index 00000000000..471bed33716 --- /dev/null +++ b/mit-pthreads/stdio/tmpfile.c @@ -0,0 +1,80 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)tmpfile.c 5.4 (Berkeley) 5/27/91";*/ +static char *rcsid = "$Id$"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> +#include <signal.h> +#include <unistd.h> +#include <errno.h> +#include <stdio.h> +#include <paths.h> + +FILE * +tmpfile() +{ + sigset_t set, oset; + FILE *fp; + int fd, sverrno; +#define TRAILER "tmp.XXXXXX" + char buf[sizeof(_PATH_TMP) + sizeof(TRAILER)]; + + memcpy(buf, _PATH_TMP, sizeof(_PATH_TMP) - 1); + memcpy( buf + sizeof(_PATH_TMP) - 1, TRAILER, sizeof(TRAILER)); + + sigfillset(&set); + (void)sigprocmask(SIG_BLOCK, &set, &oset); + + fd = mkstemp(buf); + if (fd != -1) + (void)unlink(buf); + + (void)sigprocmask(SIG_SETMASK, &oset, NULL); + + if (fd == -1) + return (NULL); + + if (!(fp = fdopen(fd, "w+"))) { + sverrno = errno; + (void)close(fd); + errno = sverrno; + return (NULL); + } + return (fp); +} |