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sort: use mkstemp(3) instead of reinventing it

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MFC After:	1 week
This commit is contained in:
Baptiste Daroussin 2022-10-12 17:57:37 +02:00
parent 1694872231
commit 3f9e5e59bd
1 changed files with 6 additions and 6 deletions
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12
usr.bin/sort/file.c
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@ -195,15 +195,15 @@ file_is_tmp(const char* fn)
char *
new_tmp_file_name(void)
{
static size_t tfcounter = 0;
static const char *fn = ".bsdsort.";
char *ret;
size_t sz;
int fd;
sz = strlen(tmpdir) + 1 + strlen(fn) + 32 + 1;
ret = sort_malloc(sz);
if (asprintf(&ret, "%s/.bsdsort.XXXXXXXXXX", tmpdir) == -1)
err(2, "asprintf()");
if ((fd = mkstemp(ret)) == -1)
err(2, "mkstemp()");
close(fd);
sprintf(ret, "%s/%s%d.%lu", tmpdir, fn, (int) getpid(), (unsigned long)(tfcounter++));
tmp_file_atexit(ret);
return (ret);
}