Peteris Krumins added CURLOPT_COOKIELIST and CURLINFO_COOKIELIST, which is a

simple interface to extracting and setting cookies in libcurl's internal
"cookie jar". See the new cookie_interface.c example code.

docs/examples/Makefile.am

@@ -10,7 +10,8 @@ EXTRA_DIST = README curlgtk.c sepheaders.c simple.c postit2.c		\
  post-callback.c multi-app.c multi-double.c multi-single.c		\
  multi-post.c fopen.c simplepost.c makefile.dj curlx.c https.c		\
  multi-debugcallback.c fileupload.c getinfo.c ftp3rdparty.c debug.c	\
- anyauthput.c htmltitle.cc htmltidy.c opensslthreadlock.c
+ anyauthput.c htmltitle.cc htmltidy.c opensslthreadlock.c		\
+ cookie_interface.c
 
 all:
 	@echo "done"

docs/examples/cookie_interface.c

@@ -0,0 +1,110 @@
+/*****************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ *  This example shows usage of simple cookie interface. 
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+
+#include <curl/curl.h>
+
+static void
+print_cookies(CURL *curl)
+{
+  CURLcode res;
+  struct curl_slist *cookies;
+  struct curl_slist *nc;
+  int i;
+
+  printf("Cookies, curl knows:\n");
+  res = curl_easy_getinfo(curl, CURLINFO_COOKIELIST, &cookies);
+  if (res != CURLE_OK) {
+    fprintf(stderr, "Curl curl_easy_getinfo failed: %s\n", curl_easy_strerror(res));
+    exit(1);
+  }
+  nc = cookies, i = 1;
+  while (nc) {
+    printf("[%d]: %s\n", i, nc->data);
+    nc = nc->next;
+    i++;
+  }
+  if (i == 1) {
+    printf("(none)\n");
+  }
+  curl_slist_free_all(cookies);
+}
+
+int
+main(void)
+{
+  CURL *curl;
+  CURLcode res;
+
+  curl_global_init(CURL_GLOBAL_ALL);
+  curl = curl_easy_init();
+  if (curl) {
+    char nline[256];
+
+    curl_easy_setopt(curl, CURLOPT_URL, "http://www.google.com/"); /* google.com sets "PREF" cookie */
+    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+    curl_easy_setopt(curl, CURLOPT_COOKIEFILE, ""); /* just to start the cookie engine */
+    res = curl_easy_perform(curl);
+    if (res != CURLE_OK) {
+      fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
+      return 1;
+    }
+
+    print_cookies(curl);
+
+    printf("Erasing curl's knowledge of cookies!\n");
+    curl_easy_setopt(curl, CURLOPT_COOKIELIST, NULL);
+
+    print_cookies(curl);
+
+    printf("-----------------------------------------------\n"
+           "Setting a cookie \"PREF\" via cookie interface:\n");
+#ifdef WIN32
+#define snprintf _snprintf
+#endif
+    /* Netscape format cookie */
+    snprintf(nline, 256, "%s\t%s\t%s\t%s\t%u\t%s\t%s",
+      ".google.com", "TRUE", "/", "FALSE", time(NULL) + 31337, "PREF", "hello google, i like you very much!");
+    res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
+    if (res != CURLE_OK) {
+      fprintf(stderr, "Curl curl_easy_setopt failed: %s\n", curl_easy_strerror(res));
+      return 1;            
+    }
+
+    /* HTTP-header style cookie */
+    snprintf(nline, 256,
+      "Set-Cookie: OLD_PREF=3d141414bf4209321; "
+      "expires=Sun, 17-Jan-2038 19:14:07 GMT; path=/; domain=.google.com");
+    res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
+    if (res != CURLE_OK) {
+      fprintf(stderr, "Curl curl_easy_setopt failed: %s\n", curl_easy_strerror(res));
+      return 1;            
+    }
+
+    print_cookies(curl);
+
+    res = curl_easy_perform(curl);
+    if (res != CURLE_OK) {
+      fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
+      return 1;
+    }
+  }
+  else {
+    fprintf(stderr, "Curl init failed!\n");
+    return 1;
+  }
+
+  curl_global_cleanup();
+  return 0;
+}

docs/examples/makefile.dj

@@ -20,7 +20,8 @@ PROGRAMS  = fopen.exe ftpget.exe ftpgetresp.exe ftpupload.exe \
             multi-double.exe multi-post.exe multi-single.exe \
             persistant.exe post-callback.exe postit2.exe \
             sepheaders.exe simple.exe simplessl.exe https.exe \
-            ftp3rdparty.exe getinfo.exe anyauthput.exe
+            ftp3rdparty.exe getinfo.exe anyauthput.exe \
+            cookie_interface.exe
 
 all: $(PROGRAMS)