Commit 5ddad099 authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

docs/libcurl/opts: added more examples in man pages

parent e366ca2b
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+1 −1
Original line number Diff line number Diff line
@@ -43,7 +43,7 @@ if(curl) {
  res = curl_easy_perform(curl);

  if(!res) {
    /* extract the content-type */
    /* extract the available authentication types */
    long auth;
    res = curl_easy_getinfo(curl, CURLINFO_HTTPAUTH_AVAIL, &auth);
    if(!res) {
+17 −2
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@
.\" *                            | (__| |_| |  _ <| |___
.\" *                             \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@@ -34,7 +34,22 @@ operation. The number is OS and system specific.
.SH PROTOCOLS
All
.SH EXAMPLE
TODO
.nf
CURL *curl = curl_easy_init();
if(curl) {
  CURLcode res;
  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
  res = curl_easy_perform(curl);
  if(res != CURLE_OK) {
    long error;
    res = curl_easy_getinfo(curl, CURLINFO_OS_ERRNO, &error);
    if(res && error) {
      printf("Errno: %ld\n", error);
    }
  }
  curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.12.2
.SH RETURN VALUE
+28 −2
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@
.\" *                            | (__| |_| |  _ <| |___
.\" *                             \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@@ -35,7 +35,33 @@ bits is explained in the \fICURLOPT_PROXYAUTH(3)\fP option for
.SH PROTOCOLS
HTTP(S)
.SH EXAMPLE
TODO
.nf
CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
  curl_easy_setopt(curl, CURLOPT_PROXY, "http://127.0.0.1:80");

  res = curl_easy_perform(curl);

  if(!res) {
    /* extract the available proxy authentication types */
    long auth;
    res = curl_easy_getinfo(curl, CURLINFO_PROXYAUTH_AVAIL, &auth);
    if(!res) {
      if(!auth)
        printf("No proxy auth available, perhaps no 407?\\n");
      else {
        printf("%s%s%s%s\\n",
               auth & CURLAUTH_BASIC ? "Basic ":"",
               auth & CURLAUTH_DIGEST ? "Digest ":"",
               auth & CURLAUTH_NEGOTIATE ? "Negotiate ":"",
               auth % CURLAUTH_NTLM ? "NTLM ":"");
      }
    }
  }
  curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.10.8
.SH RETURN VALUE
+38 −2
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@
.\" *                            | (__| |_| |  _ <| |___
.\" *                             \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@@ -35,7 +35,43 @@ The default value of this parameter is NULL.
.SH PROTOCOLS
All
.SH EXAMPLE
TODO
.nf
/* make libcurl use the already established socket 'sockfd' */

static curl_socket_t opensocket(void *clientp,
                                curlsocktype purpose,
                                struct curl_sockaddr *address)
{
  curl_socket_t sockfd;
  sockfd = *(curl_socket_t *)clientp;
  /* the actual externally set socket is passed in via the OPENSOCKETDATA
     option */
  return sockfd;
}

static int sockopt_callback(void *clientp, curl_socket_t curlfd,
                            curlsocktype purpose)
{
  /* This return code was added in libcurl 7.21.5 */
  return CURL_SOCKOPT_ALREADY_CONNECTED;
}

curl = curl_easy_init();
if(curl) {
  /* libcurl will internally think that you connect to the host
   * and port that you specify in the URL option. */
  curl_easy_setopt(curl, CURLOPT_URL, "http://99.99.99.99:9999");
  /* call this function to get a socket */
  curl_easy_setopt(curl, CURLOPT_OPENSOCKETFUNCTION, opensocket);
  curl_easy_setopt(curl, CURLOPT_OPENSOCKETDATA, &sockfd);

  /* call this function to set options for the socket */
  curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);

  res = curl_easy_perform(curl);

  curl_easy_cleanup(curl);
.fi
.SH AVAILABILITY
Added in 7.17.1
.SH RETURN VALUE
+38 −1
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@
.\" *                            | (__| |_| |  _ <| |___
.\" *                             \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@@ -81,6 +81,43 @@ The default behavior is the equivalent of this:
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
/* make libcurl use the already established socket 'sockfd' */

static curl_socket_t opensocket(void *clientp,
                                curlsocktype purpose,
                                struct curl_sockaddr *address)
{
  curl_socket_t sockfd;
  sockfd = *(curl_socket_t *)clientp;
  /* the actual externally set socket is passed in via the OPENSOCKETDATA
     option */
  return sockfd;
}

static int sockopt_callback(void *clientp, curl_socket_t curlfd,
                            curlsocktype purpose)
{
  /* This return code was added in libcurl 7.21.5 */
  return CURL_SOCKOPT_ALREADY_CONNECTED;
}

curl = curl_easy_init();
if(curl) {
  /* libcurl will internally think that you connect to the host
   * and port that you specify in the URL option. */
  curl_easy_setopt(curl, CURLOPT_URL, "http://99.99.99.99:9999");
  /* call this function to get a socket */
  curl_easy_setopt(curl, CURLOPT_OPENSOCKETFUNCTION, opensocket);
  curl_easy_setopt(curl, CURLOPT_OPENSOCKETDATA, &sockfd);

  /* call this function to set options for the socket */
  curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);

  res = curl_easy_perform(curl);

  curl_easy_cleanup(curl);
.fi
.SH AVAILABILITY
Added in 7.17.1.
.SH RETURN VALUE
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