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curl_pushheader_bynum(3) Library Functions Manual curl_pushheader_bynum(3) NAME curl_pushheader_bynum - get a push header by index SYNOPSIS #include <curl/curl.h> char *curl_pushheader_bynum(struct curl_pushheaders *h, size_t num); DESCRIPTION This is a function that is only functional within a CURLMOPT_PUSHFUNC- TION(3) callback. It makes no sense to try to use it elsewhere and it has no function then. It returns the value for the header field at the given index num, for the incoming server push request or NULL. The data pointed to is freed by libcurl when this callback returns. The returned pointer points to a "name:value" string that gets freed when this callback returns. PROTOCOLS This functionality affects http only EXAMPLE /* output all the incoming push request headers */ static int push_cb(CURL *parent, CURL *easy, size_t num_headers, struct curl_pushheaders *headers, void *clientp) { int i = 0; char *field; do { field = curl_pushheader_bynum(headers, i); if(field) fprintf(stderr, "Push header: %s\n", field); i++; } while(field); return CURL_PUSH_OK; /* permission granted */ } int main(void) { CURLM *multi = curl_multi_init(); curl_multi_setopt(multi, CURLMOPT_PUSHFUNCTION, push_cb); } AVAILABILITY Added in curl 7.44.0 RETURN VALUE Returns a pointer to the header field content or NULL. SEE ALSO CURLMOPT_PUSHFUNCTION(3), curl_pushheader_byname(3) libcurl 2025-06-03 curl_pushheader_bynum(3)
NAME | SYNOPSIS | DESCRIPTION | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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