X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Ftemp%2Fmktemp.c;h=24c858bb18b21e71f6bdce5e08d09afc11b34b18;hb=ddfb267b0e72499f6022981733264a063ec881f0;hp=8638e087091395eaf0dcdde1e669fe91e19c5eb9;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl diff --git a/src/temp/mktemp.c b/src/temp/mktemp.c index 8638e087..24c858bb 100644 --- a/src/temp/mktemp.c +++ b/src/temp/mktemp.c @@ -1,29 +1,28 @@ #include -#include -#include #include #include #include #include "libc.h" -char *mktemp(char *template) +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);