mirror of
https://github.com/fluencelabs/musl
synced 2025-05-24 05:01:32 +00:00
30 lines
525 B
C
30 lines
525 B
C
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include "libc.h"
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char *mktemp(char *template)
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{
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static int lock;
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static int index;
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int l = strlen(template);
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if (l < 6 || strcmp(template+l-6, "XXXXXX")) {
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errno = EINVAL;
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return NULL;
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}
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LOCK(&lock);
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for (; index < 1000000; index++) {
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snprintf(template+l-6, 6, "%06d", index);
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if (access(template, F_OK) != 0) {
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UNLOCK(&lock);
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return template;
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}
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}
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UNLOCK(&lock);
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return NULL;
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}
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