2004-02-24 00:41:20 +01:00
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/* the Music Player Daemon (MPD)
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2007-04-05 05:22:33 +02:00
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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2004-02-24 00:41:20 +01:00
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "utils.h"
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2006-08-26 08:25:57 +02:00
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#include "log.h"
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2007-06-13 17:27:09 +02:00
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#include "conf.h"
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2008-04-12 06:19:26 +02:00
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#include "../config.h"
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2004-02-24 00:41:20 +01:00
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2008-10-08 10:49:29 +02:00
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#include <assert.h>
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#include <string.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <fcntl.h>
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#ifdef HAVE_IPV6
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#include <sys/socket.h>
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#endif
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2006-07-20 18:02:40 +02:00
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char *myFgets(char *buffer, int bufferSize, FILE * fp)
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{
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char *ret = fgets(buffer, bufferSize, fp);
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if (ret && strlen(buffer) > 0 && buffer[strlen(buffer) - 1] == '\n') {
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buffer[strlen(buffer) - 1] = '\0';
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2004-02-24 00:41:20 +01:00
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}
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2006-07-20 18:02:40 +02:00
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if (ret && strlen(buffer) > 0 && buffer[strlen(buffer) - 1] == '\r') {
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buffer[strlen(buffer) - 1] = '\0';
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2004-08-10 18:03:03 +02:00
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}
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2004-02-24 00:41:20 +01:00
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return ret;
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}
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2006-07-20 18:02:40 +02:00
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void stripReturnChar(char *string)
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{
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while (string && (string = strchr(string, '\n'))) {
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2004-03-09 23:50:52 +01:00
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*string = ' ';
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2004-03-09 21:55:51 +01:00
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}
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}
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2004-04-01 05:48:51 +02:00
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2006-07-20 18:02:40 +02:00
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void my_usleep(long usec)
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{
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2004-04-01 05:48:51 +02:00
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struct timeval tv;
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tv.tv_sec = 0;
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tv.tv_usec = usec;
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2006-07-20 18:02:40 +02:00
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select(0, NULL, NULL, NULL, &tv);
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2004-04-01 05:48:51 +02:00
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}
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2004-05-15 23:19:43 +02:00
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2006-07-20 18:02:40 +02:00
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int ipv6Supported(void)
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{
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2004-05-15 23:19:43 +02:00
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#ifdef HAVE_IPV6
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int s;
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2006-07-20 18:02:40 +02:00
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s = socket(AF_INET6, SOCK_STREAM, 0);
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if (s == -1)
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return 0;
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2004-05-15 23:19:43 +02:00
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close(s);
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return 1;
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2008-03-26 11:37:23 +01:00
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#else
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2006-07-20 18:02:40 +02:00
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return 0;
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2008-03-26 11:37:23 +01:00
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#endif
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2004-05-15 23:19:43 +02:00
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}
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2006-08-26 08:25:57 +02:00
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mpd_malloc char *xstrdup(const char *s)
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{
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2008-01-01 04:01:24 +01:00
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char *ret = strdup(s);
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2006-08-26 08:25:57 +02:00
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if (mpd_unlikely(!ret))
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FATAL("OOM: strdup\n");
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return ret;
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}
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/* borrowed from git :) */
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mpd_malloc void *xmalloc(size_t size)
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{
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void *ret;
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assert(mpd_likely(size));
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ret = malloc(size);
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if (mpd_unlikely(!ret))
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FATAL("OOM: malloc\n");
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return ret;
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}
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mpd_malloc void *xrealloc(void *ptr, size_t size)
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{
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2006-09-07 21:26:51 +02:00
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void *ret = realloc(ptr, size);
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2006-08-26 08:25:57 +02:00
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2006-09-07 21:26:51 +02:00
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/* some C libraries return NULL when size == 0,
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* make sure we get a free()-able pointer (free(NULL)
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* doesn't work with all C libraries, either) */
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if (mpd_unlikely(!ret && !size))
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ret = realloc(ptr, 1);
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2006-08-26 08:25:57 +02:00
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if (mpd_unlikely(!ret))
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FATAL("OOM: realloc\n");
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return ret;
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}
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mpd_malloc void *xcalloc(size_t nmemb, size_t size)
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{
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void *ret;
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assert(mpd_likely(nmemb && size));
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ret = calloc(nmemb, size);
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if (mpd_unlikely(!ret))
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FATAL("OOM: calloc\n");
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return ret;
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}
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2007-06-13 17:27:09 +02:00
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char *parsePath(char *path)
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{
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ConfigParam *param;
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struct passwd *passwd;
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char *newPath;
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char *c;
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int foundSlash = 0;
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int pos = 1;
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if (path[0] != '/' && path[0] != '~') {
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ERROR("\"%s\" is not an absolute path\n", path);
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return NULL;
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} else if (path[0] == '~') {
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if (path[1] == '/' || path[1] == '\0') {
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param = getConfigParam(CONF_USER);
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if (param && param->value) {
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passwd = getpwnam(param->value);
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if (!passwd) {
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ERROR("no such user %s\n",
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param->value);
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return NULL;
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}
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} else {
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passwd = getpwuid(geteuid());
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if (!passwd) {
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ERROR("problems getting passwd entry "
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"for current user\n");
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return NULL;
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}
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}
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} else {
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for (c = path + 1; *c != '\0' && *c != '/'; c++);
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if (*c == '/') {
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foundSlash = 1;
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*c = '\0';
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}
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pos = c - path;
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passwd = getpwnam(path + 1);
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if (!passwd) {
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ERROR("user \"%s\" not found\n", path + 1);
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return NULL;
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}
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if (foundSlash)
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*c = '/';
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}
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newPath = xmalloc(strlen(passwd->pw_dir) + strlen(path + pos) + 1);
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strcpy(newPath, passwd->pw_dir);
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strcat(newPath, path + pos);
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} else {
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newPath = xstrdup(path);
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}
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2006-08-26 08:25:57 +02:00
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2007-06-13 17:27:09 +02:00
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return newPath;
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}
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2008-03-26 11:39:03 +01:00
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int set_nonblocking(int fd)
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{
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int ret, flags;
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assert(fd >= 0);
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while ((flags = fcntl(fd, F_GETFL)) < 0 && errno == EINTR) ;
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if (flags < 0)
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return flags;
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flags |= O_NONBLOCK;
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while ((ret = fcntl(fd, F_SETFL, flags)) < 0 && errno == EINTR) ;
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return ret;
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}
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2008-06-30 04:43:04 +02:00
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void init_async_pipe(int file_des[2])
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{
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if (pipe(file_des) < 0)
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FATAL("Couldn't open pipe: %s", strerror(errno));
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if (set_nonblocking(file_des[0]) < 0)
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FATAL("Couldn't set non-blocking I/O: %s\n", strerror(errno));
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if (set_nonblocking(file_des[1]) < 0)
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FATAL("Couldn't set non-blocking I/O: %s\n", strerror(errno));
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}
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2008-06-30 04:43:17 +02:00
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void xpthread_mutex_init(pthread_mutex_t *m, const pthread_mutexattr_t *a)
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{
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int err;
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if ((err = pthread_mutex_init(m, a)))
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FATAL("failed to init mutex: %s\n", strerror(err));
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}
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void xpthread_cond_init(pthread_cond_t *c, pthread_condattr_t *a)
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{
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int err;
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if ((err = pthread_cond_init(c, a)))
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FATAL("failed to init cond: %s\n", strerror(err));
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}
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2008-06-30 04:43:04 +02:00
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void xpthread_mutex_destroy(pthread_mutex_t *mutex)
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{
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int err;
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if ((err = pthread_mutex_destroy(mutex)))
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FATAL("failed to destroy mutex: %s\n", strerror(err));
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}
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void xpthread_cond_destroy(pthread_cond_t *cond)
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{
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int err;
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if ((err = pthread_cond_destroy(cond)))
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FATAL("failed to destroy cond: %s\n", strerror(err));
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}
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