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Fix temporary file creation.

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Obtained from:	NetBSD dol.c r1.15
This commit is contained in:
Jeroen Ruigrok van der Werven 2000-11-05 21:34:27 +00:00
parent abeee2d84b
commit 04b3babe41
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/stable/3/; revision=68368
1 changed files with 13 additions and 5 deletions
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18
bin/csh/dol.c
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@ -40,6 +40,7 @@ static const char rcsid[] =
#endif
#endif /* not lint */
#include <sys/time.h>
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
@ -850,13 +851,20 @@ heredoc(term)
Char **vp;
bool quoted;
char *tmp;
struct timeval tv;
if (creat(tmp = short2str(shtemp), 0600) < 0)
stderror(ERR_SYSTEM, tmp, strerror(errno));
(void) close(0);
if (open(tmp, O_RDWR) < 0) {
again:
tmp = short2str(shtemp);
if (open(tmp, O_RDWR|O_CREAT|O_TRUNC|O_EXCL, 0600) < 0) {
int oerrno = errno;
if (errno == EEXIST) {
if (unlink(tmp) == -1) {
(void) gettimeofday(&tv, NULL);
shtemp = Strspl(STRtmpsh, putn((((int)tv.tv_sec) ^
((int)tv.tv_usec) ^ ((int)getpid())) & 0x00ffffff));
}
goto again;
}
(void) unlink(tmp);
errno = oerrno;
stderror(ERR_SYSTEM, tmp, strerror(errno));