mirror of
https://github.com/mpv-player/mpv
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4a092e78f8
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11609 b3059339-0415-0410-9bf9-f77b7e298cf2
275 lines
6.1 KiB
C
275 lines
6.1 KiB
C
/*
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* HTTP Cookies
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* Reads Netscape and Mozilla cookies.txt files
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*
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* by Dave Lambley <mplayer@davel.me.uk>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include "cookies.h"
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#include "http.h"
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#include "mp_msg.h"
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#define MAX_COOKIES 20
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char *cookies_file = NULL;
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typedef struct cookie_list_type {
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char *name;
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char *value;
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char *domain;
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char *path;
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int secure;
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struct cookie_list_type *next;
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} cookie_list_t;
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/* Pointer to the linked list of cookies */
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static struct cookie_list_type *cookie_list = NULL;
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/* Like strdup, but stops at anything <31. */
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static char *col_dup(const char *src)
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{
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char *dst;
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int length = 0;
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while (src[length] > 31)
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length++;
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dst = malloc(length + 1);
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strncpy(dst, src, length);
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dst[length] = 0;
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return dst;
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}
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static int right_hand_strcmp(const char *cookie_domain, const char *url_domain)
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{
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int c_l;
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int u_l;
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c_l = strlen(cookie_domain);
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u_l = strlen(url_domain);
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if (c_l > u_l)
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return -1;
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return strcmp(cookie_domain, url_domain + u_l - c_l);
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}
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static int left_hand_strcmp(const char *cookie_path, const char *url_path)
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{
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return strncmp(cookie_path, url_path, strlen(cookie_path));
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}
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/* Finds the start of all the columns */
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static int parse_line(char **ptr, char *cols[6])
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{
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int col;
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cols[0] = *ptr;
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for (col = 1; col < 7; col++) {
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for (; (**ptr) > 31; (*ptr)++);
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if (**ptr == 0)
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return 0;
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(*ptr)++;
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if ((*ptr)[-1] != 9)
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return 0;
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cols[col] = (*ptr);
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}
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return 1;
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}
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/* Loads a file into RAM */
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static char *load_file(const char *filename, off_t * length)
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{
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int fd;
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char *buffer;
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mp_msg(MSGT_NETWORK, MSGL_V, "Loading cookie file: %s\n", filename);
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fd = open(filename, O_RDONLY);
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if (fd < 0) {
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mp_msg(MSGT_NETWORK, MSGL_V, "Could not open");
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return NULL;
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}
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*length = lseek(fd, 0, SEEK_END);
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if (*length < 0) {
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mp_msg(MSGT_NETWORK, MSGL_V, "Could not find EOF");
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return NULL;
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}
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lseek(fd, SEEK_SET, 0);
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if (!(buffer = malloc(*length + 1))) {
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mp_msg(MSGT_NETWORK, MSGL_V, "Could not malloc.");
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return NULL;
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}
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if (read(fd, buffer, *length) != *length) {
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mp_msg(MSGT_NETWORK, MSGL_V, "Read is behaving funny.");
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return NULL;
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}
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close(fd);
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buffer[*length] = 0;
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return buffer;
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}
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/* Loads a cookies.txt file into a linked list. */
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static struct cookie_list_type *load_cookies_from(const char *filename,
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struct cookie_list_type
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*list)
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{
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char *ptr;
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off_t length;
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mp_msg(MSGT_NETWORK, MSGL_V, "Loading cookie file: %s\n", filename);
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ptr = load_file(filename, &length);
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if (!ptr)
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return list;
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while (*ptr > 0) {
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char *cols[7];
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if (parse_line(&ptr, cols)) {
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struct cookie_list_type *new;
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new = malloc(sizeof(cookie_list_t));
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new->name = col_dup(cols[5]);
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new->value = col_dup(cols[6]);
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new->path = col_dup(cols[2]);
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new->domain = col_dup(cols[0]);
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new->secure = (*(cols[3]) == 't') || (*(cols[3]) == 'T');
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new->next = list;
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list = new;
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}
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}
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return list;
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}
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/* Attempt to load cookies.txt from various locations. Returns a pointer to the linked list contain the cookies. */
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static struct cookie_list_type *load_cookies()
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{
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DIR *dir;
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struct dirent *ent;
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struct cookie_list_type *list = NULL;
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char *buf;
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char *homedir;
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if (cookies_file)
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return load_cookies_from(cookies_file, list);
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homedir = getenv("HOME");
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if (!homedir)
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return list;
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buf = malloc(strlen(homedir) + sizeof("/.mozilla/default") + 1);
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sprintf(buf, "%s/.mozilla/default", homedir);
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dir = opendir(buf);
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free(buf);
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if (dir) {
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while ((ent = readdir(dir)) != NULL) {
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if ((ent->d_name)[0] != '.') {
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buf = malloc(strlen(getenv("HOME")) +
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sizeof("/.mozilla/default/") +
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strlen(ent->d_name) + sizeof("cookies.txt") + 1);
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sprintf(buf, "%s/.mozilla/default/%s/cookies.txt",
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getenv("HOME"), ent->d_name);
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list = load_cookies_from(buf, list);
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free(buf);
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}
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}
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closedir(dir);
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}
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buf = malloc(strlen(homedir) + sizeof("/.netscape/cookies.txt") + 1);
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sprintf(buf, "%s/.netscape/cookies.txt", homedir);
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list = load_cookies_from(buf, list);
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free(buf);
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return list;
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}
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/* Take an HTTP_header_t, and insert the correct headers. The cookie files are read if necessary. */
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void
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cookies_set(HTTP_header_t * http_hdr, const char *domain, const char *url)
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{
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int found_cookies = 0;
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struct cookie_list_type *cookies[MAX_COOKIES];
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struct cookie_list_type *list, *start;
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int i;
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char *path;
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char *buf;
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path = strchr(url, '/');
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if (!path)
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path = "";
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if (!cookie_list)
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cookie_list = load_cookies();
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list = start = cookie_list;
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/* Find which cookies we want, removing duplicates. Cookies with the longest domain, then longest path take priority */
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while (list) {
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/* Check the cookie domain and path. Also, we never send "secure" cookies. These should only be sent over HTTPS. */
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if ((right_hand_strcmp(list->domain, domain) == 0)
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&& (left_hand_strcmp(list->path, path) == 0) && !list->secure) {
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int replacing = 0;
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for (i = 0; i < found_cookies; i++) {
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if (strcmp(list->name, cookies[i]->name) == 0) {
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replacing = 0;
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if (strlen(list->domain) >
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strlen(cookies[i]->domain) == 0) {
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cookies[i] = list;
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} else if (strlen(list->path) >
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strlen(cookies[i]->path) == 0) {
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cookies[i] = list;
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}
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}
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}
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if (found_cookies > MAX_COOKIES) {
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/* Cookie jar overflow! */
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break;
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}
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if (!replacing)
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cookies[found_cookies++] = list;
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}
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list = list->next;
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}
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buf = strdup("Cookie:");
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for (i = 0; i < found_cookies; i++) {
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char *nbuf;
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nbuf = malloc(strlen(buf) + strlen(" ") + strlen(cookies[i]->name) +
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strlen("=") + strlen(cookies[i]->value) + strlen(";") + 1);
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sprintf(nbuf, "%s %s=%s;", buf, cookies[i]->name,
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cookies[i]->value);
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free(buf);
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buf = nbuf;
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}
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if (found_cookies)
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http_set_field(http_hdr, buf);
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else
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free(buf);
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}
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