X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Ftemp%2Fmktemp.c;h=c0e06f5ef424216c3b142999942b1146c801fa4d;hp=1462a16c6dd189ff8354656a924bfcc324ddc67b;hb=aed707f679cce80afd929f0efaf080f1e8481330;hpb=446b4207cc7a30d8a4d5b2445a5a1b27d440f55d diff --git a/src/temp/mktemp.c b/src/temp/mktemp.c index 1462a16c..c0e06f5e 100644 --- a/src/temp/mktemp.c +++ b/src/temp/mktemp.c @@ -11,23 +11,25 @@ char *__mktemp(char *template) { struct timespec ts; - size_t l = strlen(template); + size_t i, l = strlen(template); int retries = 10000; unsigned long r; if (l < 6 || strcmp(template+l-6, "XXXXXX")) { errno = EINVAL; - return 0; + *template = 0; + return template; } - clock_gettime(CLOCK_REALTIME, &ts); - r = ts.tv_nsec + (uintptr_t)&ts / 16 + (uintptr_t)template; while (retries--) { - snprintf(template+l-6, 7, "%06lX", r & 0xffffff); + 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; - return 0; + return template; } weak_alias(__mktemp, mktemp);