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fix: make check for X-Forwarded-For case insensitive in RateLimit.c

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This commit is contained in:
frosty 2026-03-31 05:22:42 +03:00
parent f38fe3c42e
commit 0ea4bc726c
1 changed files with 18 additions and 1 deletions
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19
src/Limiter/RateLimit.c
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@ -31,6 +31,23 @@ static int is_blank_char(char c) {
return c == ' ' || c == '\t' || c == '\r' || c == '\n';
}
static const char *str_case_str(const char *haystack, const char *needle) {
size_t nlen = strlen(needle);
for (; *haystack; haystack++) {
if (tolower((unsigned char)*haystack) == tolower((unsigned char)*needle)) {
size_t i;
for (i = 1; i < nlen; i++) {
if (tolower((unsigned char)haystack[i]) !=
tolower((unsigned char)needle[i]))
break;
}
if (i == nlen)
return haystack;
}
}
return NULL;
}
static void trim_copy(char *dest, size_t dest_size, const char *src,
size_t src_len) {
while (src_len > 0 && is_blank_char(*src)) {
@ -53,7 +70,7 @@ static void trim_copy(char *dest, size_t dest_size, const char *src,
}
static void get_client_key(char *client_key, size_t client_key_size) {
const char *header = strstr(current_request_buffer, "X-Forwarded-For:");
const char *header = str_case_str(current_request_buffer, "x-forwarded-for:");
if (!header)
return;