diff options
author | Richard Boulton <richard@tartarus.org> | 2001-01-07 04:51:31 +0000 |
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committer | Richard Boulton <richard@tartarus.org> | 2001-01-07 04:51:31 +0000 |
commit | 62c3227e2fe4d225ab1ee48e96ea11b6db705e5e (patch) | |
tree | 7feed87aac105f60750981bde6b813cd6606d40a /tools | |
parent | 4bdaed3966dfc3d959b8e444c5dca541b786d079 (diff) |
Almost completely rewritten gstreamer-register.
Original commit message from CVS:
Almost completely rewritten gstreamer-register.
Now checks most errors that can happen, and displays a useful message.
Diffstat (limited to 'tools')
-rw-r--r-- | tools/gstreamer-register.c | 124 |
1 files changed, 115 insertions, 9 deletions
diff --git a/tools/gstreamer-register.c b/tools/gstreamer-register.c index e008e4f04d..e3097f59fa 100644 --- a/tools/gstreamer-register.c +++ b/tools/gstreamer-register.c @@ -1,21 +1,127 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> + * 2000 Wim Taymans <wtay@chello.be> + * + * gstreamer-register.c: Plugin subsystem for loading elements, types, and libs + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + #include <stdlib.h> #include <gst/gst.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <fcntl.h> +#include <unistd.h> + +#include <string.h> +#include <errno.h> + +#define GST_CONFIG_DIR "/etc/gstreamer" +#define GLOBAL_REGISTRY_FILE GST_CONFIG_DIR"/reg.xml" +#define GLOBAL_REGISTRY_FILE_TMP GST_CONFIG_DIR"/.reg.xml.tmp" + extern gboolean _gst_plugin_spew; +static void error_perm() { + g_print("\n(%s)\n" + "Do you have the appropriate permissions?\n" + "You may need to be root to run this command.\n\n", + strerror(errno)); + exit(1); +} + +static void usage(const char *progname) { + g_print("usage: %s\n", progname); + g_print("Builds the plugin registry for gstreamer.\n"); + g_print("This command will usually require superuser privileges.\n\n"); + exit(0); +} + +static int is_file(const char * filename) { + struct stat statbuf; + if(stat(filename, &statbuf)) return 0; + return S_ISREG(statbuf.st_mode); +} + +static int is_dir(const char * filename) { + struct stat statbuf; + if(stat(filename, &statbuf)) return 0; + return S_ISDIR(statbuf.st_mode); +} + +static void move_file(const char * nameold, const char * namenew) { + if (!is_file(nameold)) { + g_print("Temporary `%s' is not a file", nameold); + error_perm(); + } + if (is_dir(namenew)) { + g_print("Destination path `%s' is a directory\n", namenew); + g_print("Please remove, or reconfigure GStreamer\n\n"); + exit(1); + } + if (rename(nameold, namenew)) { + g_print("Cannot move `%s' to `%s'", nameold, namenew); + error_perm(); + } +} + +static int make_dir(const char * dirname) { + mode_t mode = 0766; + return !mkdir(dirname, mode); +} + +void check_dir(const char * dirname) { + if (!is_dir(dirname)) { + if (!make_dir(dirname)) { + g_print("Cannot create GStreamer registry directory `%s'", + dirname); + error_perm(); + } + } +} + int main(int argc,char *argv[]) { - xmlDocPtr doc; + xmlDocPtr doc; + + if (argc != 1) usage(argv[0]); + + // Check that directory for config exists + check_dir(GST_CONFIG_DIR); + + // Read the plugins + _gst_plugin_spew = TRUE; + gst_init(&argc,&argv); + doc = xmlNewDoc("1.0"); + doc->root = xmlNewDocNode(doc, NULL, "GST-PluginRegistry", NULL); + gst_plugin_save_thyself(doc->root); - unlink("/etc/gstreamer/reg.xml"); + // Save the registry to a tmp file. + // FIXME; check for failure. + if (xmlSaveFile(GLOBAL_REGISTRY_FILE_TMP, doc)) { + g_print("Cannot save new registry `%s'", + GLOBAL_REGISTRY_FILE_TMP); + error_perm(); + } - _gst_plugin_spew = TRUE; - gst_init(&argc,&argv); + // Make the tmp file live. + move_file(GLOBAL_REGISTRY_FILE_TMP, GLOBAL_REGISTRY_FILE); - doc = xmlNewDoc("1.0"); - doc->root = xmlNewDocNode(doc, NULL, "GST-PluginRegistry", NULL); - gst_plugin_save_thyself(doc->root); - xmlSaveFile("/etc/gstreamer/reg.xml", doc); - exit(0); + return(0); } |