137 lines
4.9 KiB
C
137 lines
4.9 KiB
C
/* main.c -- X application launcher
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Copyright (c) 2007 Jeremy Huddleston
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Copyright (c) 2007 Apple Inc
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation files
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(the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of the Software,
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and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
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HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name(s) of the above
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copyright holders shall not be used in advertising or otherwise to
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promote the sale, use or other dealings in this Software without
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prior written authorization. */
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#include <X11/Xlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <CoreFoundation/CoreFoundation.h>
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#define DEFAULT_CLIENT "/usr/X11/bin/xterm"
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#define DEFAULT_STARTX "/usr/X11/bin/startx"
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#define DEFAULT_SHELL "/bin/sh"
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static int execute(const char *command);
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static char *command_from_prefs(const char *key, const char *default_value);
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int main(int argc, char **argv) {
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Display *display;
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const char *s;
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size_t i;
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fprintf(stderr, "X11.app: main(): argc=%d\n", argc);
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for(i=0; i < argc; i++) {
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fprintf(stderr, "\targv[%u] = %s\n", (unsigned)i, argv[i]);
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}
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/* If we have a process serial number and it's our only arg, act as if
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* the user double clicked the app bundle: launch app_to_run if possible
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*/
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if(argc == 1 || (argc == 2 && !strncmp(argv[1], "-psn_", 5))) {
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/* Now, try to open a display, if so, run the launcher */
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display = XOpenDisplay(NULL);
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if(display) {
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fprintf(stderr, "X11.app: Closing the display and sleeping for 2s to allow the X server to start up.\n");
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/* Could open the display, start the launcher */
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XCloseDisplay(display);
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/* Give 2 seconds for the server to start...
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* TODO: *Really* fix this race condition
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*/
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usleep(2000);
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return execute(command_from_prefs("app_to_run", DEFAULT_CLIENT));
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}
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}
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/* Start the server */
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if(s = getenv("DISPLAY")) {
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fprintf(stderr, "X11.app: Could not connect to server (DISPLAY=\"%s\", unsetting). Starting X server.\n", s);
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unsetenv("DISPLAY");
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} else {
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fprintf(stderr, "X11.app: Could not connect to server (DISPLAY is not set). Starting X server.\n");
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}
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return execute(command_from_prefs("startx_script", DEFAULT_STARTX));
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}
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static int execute(const char *command) {
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const char *newargv[7];
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const char **s;
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newargv[0] = "/usr/bin/login";
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newargv[1] = "-fp";
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newargv[2] = getlogin();
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newargv[3] = command_from_prefs("login_shell", DEFAULT_SHELL);
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newargv[4] = "-c";
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newargv[5] = command;
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newargv[6] = NULL;
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fprintf(stderr, "X11.app: Launching %s:\n", command);
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for(s=newargv; *s; s++) {
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fprintf(stderr, "\targv[%d] = %s\n", s - newargv, *s);
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}
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execvp (newargv[0], (char * const *) newargv);
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perror ("X11.app: Couldn't exec.");
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return(1);
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}
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static char *command_from_prefs(const char *key, const char *default_value) {
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char *command = NULL;
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CFStringRef cfKey = CFStringCreateWithCString(NULL, key, kCFStringEncodingASCII);
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CFPropertyListRef PlistRef = CFPreferencesCopyAppValue(cfKey, kCFPreferencesCurrentApplication);
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if ((PlistRef == NULL) || (CFGetTypeID(PlistRef) != CFStringGetTypeID())) {
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CFStringRef cfDefaultValue = CFStringCreateWithCString(NULL, default_value, kCFStringEncodingASCII);
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CFPreferencesSetAppValue(cfKey, cfDefaultValue, kCFPreferencesCurrentApplication);
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CFPreferencesAppSynchronize(kCFPreferencesCurrentApplication);
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int len = strlen(default_value) + 1;
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command = (char *)malloc(len * sizeof(char));
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if(!command)
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return NULL;
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strcpy(command, default_value);
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} else {
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int len = CFStringGetLength((CFStringRef)PlistRef) + 1;
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command = (char *)malloc(len * sizeof(char));
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if(!command)
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return NULL;
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CFStringGetCString((CFStringRef)PlistRef, command, len, kCFStringEncodingASCII);
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}
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if (PlistRef)
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CFRelease(PlistRef);
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return command;
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}
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