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standard: change uses of sprintf into snprintf and zend_string_concat2

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This commit is contained in:
Niels Dossche 2024-06-09 19:40:57 +02:00
parent a4674654ab
commit c151d2d135
4 changed files with 6 additions and 8 deletions
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6
ext/standard/dns.c
View file

@ -641,7 +641,7 @@ static uint8_t *php_parserr(uint8_t *cp, uint8_t *end, querybuf *answer, int typ
tp[0] = ':'; tp[0] = ':';
tp++; tp++;
} }
tp += sprintf((char*)tp,"%x",s); tp += snprintf((char*)tp, sizeof(name) - (tp - (uint8_t *) name), "%x", s);
} else { } else {
if (!have_v6_break) { if (!have_v6_break) {
have_v6_break = 1; have_v6_break = 1;
@ -686,7 +686,7 @@ static uint8_t *php_parserr(uint8_t *cp, uint8_t *end, querybuf *answer, int typ
tp[0] = ':'; tp[0] = ':';
tp++; tp++;
} }
sprintf((char*)tp, "%x", cp[0] & 0xFF); snprintf((char*)tp, sizeof(name) - (tp - (uint8_t *) name), "%x", cp[0] & 0xFF);
} else { } else {
if (!have_v6_break) { if (!have_v6_break) {
have_v6_break = 1; have_v6_break = 1;
@ -711,7 +711,7 @@ static uint8_t *php_parserr(uint8_t *cp, uint8_t *end, querybuf *answer, int typ
tp[0] = ':'; tp[0] = ':';
tp++; tp++;
} }
tp += sprintf((char*)tp,"%x",s); tp += snprintf((char*)tp, sizeof(name) - (tp - (uint8_t *) name),"%x",s);
} else { } else {
if (!have_v6_break) { if (!have_v6_break) {
have_v6_break = 1; have_v6_break = 1;

2
ext/standard/dns_win32.c
View file

@ -282,7 +282,7 @@ static void php_parserr(PDNS_RECORD pRec, int type_to_fetch, int store, bool raw
tp[0] = ':'; tp[0] = ':';
tp++; tp++;
} }
tp += sprintf((char*)tp,"%x", out[i]); tp += snprintf((char*)tp, sizeof(buf) - (tp - (char *) buf), "%x", out[i]);
} else { } else {
if (!have_v6_break) { if (!have_v6_break) {
have_v6_break = 1; have_v6_break = 1;

4
ext/standard/password.c
View file

@ -201,9 +201,7 @@ static zend_string* php_password_bcrypt_hash(const zend_string *password, zend_a
} }
ZSTR_VAL(salt)[ZSTR_LEN(salt)] = 0; ZSTR_VAL(salt)[ZSTR_LEN(salt)] = 0;
hash = zend_string_alloc(ZSTR_LEN(salt) + hash_format_len, 0); hash = zend_string_concat2(hash_format, hash_format_len, ZSTR_VAL(salt), ZSTR_LEN(salt));
sprintf(ZSTR_VAL(hash), "%s%s", hash_format, ZSTR_VAL(salt));
ZSTR_VAL(hash)[hash_format_len + ZSTR_LEN(salt)] = 0;
zend_string_release_ex(salt, 0); zend_string_release_ex(salt, 0);

2
ext/standard/string.c
View file

@ -3846,7 +3846,7 @@ PHPAPI zend_string *php_addcslashes_str(const char *str, size_t len, const char
case '\v': *target++ = 'v'; break; case '\v': *target++ = 'v'; break;
case '\b': *target++ = 'b'; break; case '\b': *target++ = 'b'; break;
case '\f': *target++ = 'f'; break; case '\f': *target++ = 'f'; break;
default: target += sprintf(target, "%03o", (unsigned char) c); default: target += snprintf(target, 4, "%03o", (unsigned char) c);
} }
continue; continue;
} }