X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Ftemp%2Fmktemp.c;h=24c858bb18b21e71f6bdce5e08d09afc11b34b18;hp=1078b9df805e433ebd2d0f4fbe2ab87553e80df9;hb=8872e4e481d8702e68641605bba279796646773d;hpb=5377715ce07269131f011e6f4e978fb5dbf0b294 diff --git a/src/temp/mktemp.c b/src/temp/mktemp.c index 1078b9df..24c858bb 100644 --- a/src/temp/mktemp.c +++ b/src/temp/mktemp.c @@ -1,31 +1,28 @@ #include -#include -#include #include #include #include #include "libc.h" +char *__randname(char *); + char *__mktemp(char *template) { - static int lock; - static int index; - int l = strlen(template); + size_t l = strlen(template); + int retries = 10000; - if (l < 6 || strcmp(template+l-6, "XXXXXX")) { + if (l < 6 || memcmp(template+l-6, "XXXXXX", 6)) { errno = EINVAL; - return NULL; + *template = 0; + return template; } - LOCK(&lock); - for (; index < 1000000; index++) { - snprintf(template+l-6, 6, "%06d", index); - if (access(template, F_OK) != 0) { - UNLOCK(&lock); - return template; - } + while (retries--) { + __randname(template+l-6); + if (access(template, F_OK) < 0) return template; } - UNLOCK(&lock); - return NULL; + *template = 0; + errno = EEXIST; + return template; } weak_alias(__mktemp, mktemp);