xasprintf: exit if return value of vsnprintf is invalid
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@ -158,15 +158,12 @@ _unused static int xasprintf(char **strp, const char *fmt, ...)
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va_start(ap, fmt);
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len = vsnprintf(ret, len + 1, fmt, ap);
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va_end(ap);
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if (len >= memlen) {
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/* Give up! */
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free(ret);
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return -1;
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}
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}
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if (len < 0) {
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if (len < 0 || len >= memlen) {
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/* Give up! */
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fprintf(stderr, "xasprintf: unable to format a buffer\n");
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free(ret);
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return -1;
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exit(1);
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}
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*strp = ret;
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return len;
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