NAME

       curl_pushheader_byname - get a push header by name

SYNOPSIS

       #include <curl/curl.h>

       char *curl_pushheader_byname(struct curl_pushheaders *h, const char *name);

DESCRIPTION

       This  is a function that is only functional within a CURLMOPT_PUSHFUNCTION(3) callback. It
       makes no sense to try to use it elsewhere and it has no function then.

       It returns the value for the given header field name (or NULL)  for  the  incoming  server
       push request. This is a shortcut so that the application does not have to loop through all
       headers to find the one it is interested in. The data this function  points  to  is  freed
       when  this callback returns. If more than one header field use the same name, this returns
       only the first one.

EXAMPLE

       #include <string.h> /* for strncmp */

       static int push_cb(CURL *parent,
                          CURL *easy,
                          size_t num_headers,
                          struct curl_pushheaders *headers,
                          void *clientp)
       {
         char *headp;
         int *transfers = (int *)clientp;
         FILE *out;
         headp = curl_pushheader_byname(headers, ":path");
         if(headp && !strncmp(headp, "/push-", 6)) {
           fprintf(stderr, "The PATH is %s\n", headp);

           /* save the push here */
           out = fopen("pushed-stream", "wb");

           /* write to this file */
           curl_easy_setopt(easy, CURLOPT_WRITEDATA, out);

           (*transfers)++; /* one more */

           return CURL_PUSH_OK;
         }
         return CURL_PUSH_DENY;
       }

       int main(void)
       {
         int counter;
         CURLM *multi = curl_multi_init();
         curl_multi_setopt(multi, CURLMOPT_PUSHFUNCTION, push_cb);
         curl_multi_setopt(multi, CURLMOPT_PUSHDATA, &counter);
       }

AVAILABILITY

       Added in 7.44.0

RETURN VALUE

       Returns a pointer to the header field content or NULL.

SEE ALSO

       CURLMOPT_PUSHFUNCTION(3), curl_pushheader_bynum(3)