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Attempt to use the environment variable TMPDIR for the temporary

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directory, defaulting to /tmp.

PR:		bin/16924
Reviewed by:	dd
MFC after:	2 weeks
This commit is contained in:
Mike Heffner 2001-07-07 04:08:32 +00:00
parent 3b2b0a59d0
commit 0bada8603d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=79379
2 changed files with 20 additions and 3 deletions
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16
lib/libc/stdio/tmpfile.c
View file

@ -46,6 +46,7 @@ static char sccsid[] = "@(#)tmpfile.c 8.1 (Berkeley) 6/4/93";
#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include "un-namespace.h"
@ -57,10 +58,17 @@ tmpfile()
FILE *fp;
int fd, sverrno;
#define TRAILER "tmp.XXXXXX"
char buf[sizeof(_PATH_TMP) + sizeof(TRAILER)];
char *buf;
const char *tmpdir;
(void)memcpy(buf, _PATH_TMP, sizeof(_PATH_TMP) - 1);
(void)memcpy(buf + sizeof(_PATH_TMP) - 1, TRAILER, sizeof(TRAILER));
tmpdir = getenv("TMPDIR");
if (tmpdir == NULL)
tmpdir = _PATH_TMP;
(void)asprintf(&buf, "%s%s%s", tmpdir,
(tmpdir[strlen(tmpdir) - 1] == '/') ? "" : "/", TRAILER);
if (buf == NULL)
return (NULL);
sigfillset(&set);
(void)_sigprocmask(SIG_BLOCK, &set, &oset);
@ -69,6 +77,8 @@ tmpfile()
if (fd != -1)
(void)unlink(buf);
free(buf);
(void)_sigprocmask(SIG_SETMASK, &oset, NULL);
if (fd == -1)

7
lib/libc/stdio/tmpnam.3
View file

@ -67,6 +67,13 @@ returns, causing the file to be automatically deleted when the last
reference to it is closed.
The file is opened with the access value
.Ql w+ .
The file is created in the directory determined by the environment variable
.Ev TMPDIR
if set.
The default location if
.Ev TMPDIR
is not set is
.Pa /tmp .
.Pp
The
.Fn tmpnam