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Enforce buffer length in utf8_encode definition (#589)

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Fixes: https://github.com/quickjs-ng/quickjs/issues/464
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Ben Noordhuis 2024-10-10 18:55:42 +02:00 committed by GitHub
parent 416dde8458
commit 681568353c
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2 changed files with 2 additions and 2 deletions
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2
cutils.c
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@ -246,7 +246,7 @@ size_t utf8_encode_len(uint32_t c)
No null byte is stored after the encoded bytes. No null byte is stored after the encoded bytes.
Return value is in range 1..4 Return value is in range 1..4
*/ */
size_t utf8_encode(uint8_t *buf, uint32_t c) size_t utf8_encode(uint8_t buf[minimum_length(UTF8_CHAR_LEN_MAX)], uint32_t c)
{ {
if (c < 0x80) { if (c < 0x80) {
buf[0] = c; buf[0] = c;

2
cutils.h
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@ -481,7 +481,7 @@ enum {
}; };
int utf8_scan(const char *buf, size_t len, size_t *plen); int utf8_scan(const char *buf, size_t len, size_t *plen);
size_t utf8_encode_len(uint32_t c); size_t utf8_encode_len(uint32_t c);
size_t utf8_encode(uint8_t *buf, uint32_t c); size_t utf8_encode(uint8_t buf[minimum_length(UTF8_CHAR_LEN_MAX)], uint32_t c);
uint32_t utf8_decode_len(const uint8_t *p, size_t max_len, const uint8_t **pp); uint32_t utf8_decode_len(const uint8_t *p, size_t max_len, const uint8_t **pp);
uint32_t utf8_decode(const uint8_t *p, const uint8_t **pp); uint32_t utf8_decode(const uint8_t *p, const uint8_t **pp);
size_t utf8_decode_buf8(uint8_t *dest, size_t dest_len, const char *src, size_t src_len); size_t utf8_decode_buf8(uint8_t *dest, size_t dest_len, const char *src, size_t src_len);