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Merge pull request #1601 from edsrzf/limit-buffer-read

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Use strnlen when checking for null byte
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Calvin Rose 2025-06-14 12:25:18 -05:00 committed by GitHub
commit f181948aa9
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src/core/pp.c
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@ -1066,7 +1066,7 @@ void janet_buffer_format(
if (form[2] == '\0') if (form[2] == '\0')
janet_buffer_push_bytes(b, s, l); janet_buffer_push_bytes(b, s, l);
else { else {
if (l != (int32_t) strlen((const char *) s)) if (l != (int32_t) strnlen((const char *) s, l))
janet_panic("string contains zeros"); janet_panic("string contains zeros");
if (!strchr(form, '.') && l >= 100) { if (!strchr(form, '.') && l >= 100) {
janet_panic("no precision and string is too long to be formatted"); janet_panic("no precision and string is too long to be formatted");