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| author | Rich Felker <dalias@aerifal.cx> | 2011-07-28 22:03:54 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-07-28 22:03:54 -0400 |
| commit | aed707f679cce80afd929f0efaf080f1e8481330 (patch) | |
| tree | b537792bd4d0ce0ee3bb4a4adac32edce9268ee7 /src/temp | |
| parent | bbdcc403cae440c5f965f0f4c0de1f2d7fd256a7 (diff) | |
| download | musl-aed707f679cce80afd929f0efaf080f1e8481330.tar.gz musl-aed707f679cce80afd929f0efaf080f1e8481330.tar.xz musl-aed707f679cce80afd929f0efaf080f1e8481330.zip | |
remove ugly prng from mk*temp and just re-poll time on retry
Diffstat (limited to 'src/temp')
| -rw-r--r-- | src/temp/mktemp.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/temp/mktemp.c b/src/temp/mktemp.c index b04f5dee..c0e06f5e 100644 --- a/src/temp/mktemp.c +++ b/src/temp/mktemp.c @@ -13,20 +13,19 @@ char *__mktemp(char *template) struct timespec ts; size_t i, l = strlen(template); int retries = 10000; - unsigned long r, t; + unsigned long r; if (l < 6 || strcmp(template+l-6, "XXXXXX")) { errno = EINVAL; *template = 0; return template; } - clock_gettime(CLOCK_REALTIME, &ts); - r = ts.tv_nsec + (uintptr_t)&ts / 16 + (uintptr_t)template; while (retries--) { - for (t=r, i=1; i<=6; i++, t>>=4) - template[l-i] = 'A'+(t&15); + clock_gettime(CLOCK_REALTIME, &ts); + r = ts.tv_nsec + (uintptr_t)&ts / 16 + (uintptr_t)template; + for (i=1; i<=6; i++, r>>=4) + template[l-i] = 'A'+(r&15); if (access(template, F_OK) < 0) return template; - r = r * 1103515245 + 12345; } *template = 0; errno = EEXIST; |