4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
38 #include <polypcore/core-util.h>
39 #include <polypcore/log.h>
40 #include <polypcore/random.h>
44 /* Generate a new authorization key, store it in file fd and return it in *data */
45 static int generate(int fd, void *ret_data, size_t length) {
47 assert(fd >= 0 && ret_data && length);
49 pa_random(ret_data, length);
51 lseek(fd, 0, SEEK_SET);
54 if ((r = pa_loop_write(fd, ret_data, length)) < 0 || (size_t) r != length) {
55 pa_log(__FILE__": failed to write cookie file: %s", strerror(errno));
66 /* Load an euthorization cookie from file fn and store it in data. If
67 * the cookie file doesn't exist, create it */
68 static int load(const char *fn, void *data, size_t length) {
71 int unlock = 0, ret = -1;
73 assert(fn && data && length);
75 if ((fd = open(fn, O_RDWR|O_CREAT|O_BINARY, S_IRUSR|S_IWUSR)) < 0) {
76 if (errno != EACCES || (fd = open(fn, O_RDONLY|O_BINARY)) < 0) {
77 pa_log(__FILE__": failed to open cookie file '%s': %s", fn, strerror(errno));
83 unlock = pa_lock_fd(fd, 1) >= 0;
85 if ((r = pa_loop_read(fd, data, length)) < 0) {
86 pa_log(__FILE__": failed to read cookie file '%s': %s", fn, strerror(errno));
90 if ((size_t) r != length) {
91 pa_log_debug(__FILE__": got %d bytes from cookie file '%s', expected %d", (int)r, fn, (int)length);
94 pa_log(__FILE__": unable to write cookie to read only file");
98 if (generate(fd, data, length) < 0)
117 /* Load a cookie from a cookie file. If the file doesn't exist, create it. */
118 int pa_authkey_load(const char *path, void *data, size_t length) {
121 assert(path && data && length);
123 ret = load(path, data, length);
126 pa_log(__FILE__": Failed to load authorization key '%s': %s", path,
127 (ret == -1) ? strerror(errno) : "file corrupt");
132 /* If the specified file path starts with / return it, otherwise
133 * return path prepended with home directory */
134 static const char *normalize_path(const char *fn, char *s, size_t l) {
135 assert(fn && s && l > 0);
140 if (strlen(fn) < 3 || !isalpha(fn[0]) || fn[1] != ':' || fn[2] != '\\') {
142 char homedir[PATH_MAX];
143 if (!pa_get_home_dir(homedir, sizeof(homedir)))
147 snprintf(s, l, "%s/%s", homedir, fn);
149 snprintf(s, l, "%s\\%s", homedir, fn);
157 /* Load a cookie from a file in the home directory. If the specified
158 * path starts with /, use it as absolute path instead. */
159 int pa_authkey_load_auto(const char *fn, void *data, size_t length) {
162 assert(fn && data && length);
164 if (!(p = normalize_path(fn, path, sizeof(path))))
167 return pa_authkey_load(p, data, length);
170 /* Store the specified cookie in the speicified cookie file */
171 int pa_authkey_save(const char *fn, const void *data, size_t length) {
173 int unlock = 0, ret = -1;
177 assert(fn && data && length);
179 if (!(p = normalize_path(fn, path, sizeof(path))))
182 if ((fd = open(p, O_RDWR|O_CREAT, S_IRUSR|S_IWUSR)) < 0) {
183 pa_log(__FILE__": failed to open cookie file '%s': %s", fn, strerror(errno));
187 unlock = pa_lock_fd(fd, 1) >= 0;
189 if ((r = pa_loop_write(fd, data, length)) < 0 || (size_t) r != length) {
190 pa_log(__FILE__": failed to read cookie file '%s': %s", fn, strerror(errno));