X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=xtrlock.git;a=blobdiff_plain;f=xtrlock.c;h=6117c6fadbc596805a9f6f32fded1fb5ae0c07b2;hp=7598560463f3ea104da3c34d3d8d342daee5d111;hb=6f8396e3a1607537a1cd6903d3d0f1a14e6f3476;hpb=4d5f368e87b2fcc17dfd4fdca112207c6cc7550e

diff --git a/xtrlock.c b/xtrlock.c
index 7598560..6117c6f 100644
--- a/xtrlock.c
+++ b/xtrlock.c
@@ -81,19 +81,27 @@ int main(int argc, char **argv){
   Cursor cursor;
   Pixmap csr_source,csr_mask;
   XColor csr_fg, csr_bg, dummy, black;
-  int ret, screen, blank = 0;
+  int ret, screen, blank = 0, fork_after = 0;
 #ifdef SHADOW_PWD
   struct spwd *sp;
 #endif
   struct timeval tv;
   int tvt, gs;
 
-  if ((argc == 2) && (strcmp(argv[1], "-b") == 0)) {
-    blank = 1;
-  } else if (argc > 1) {
-    fprintf(stderr,"xtrlock (version %s); usage: xtrlock [-b]\n",
-            program_version);
-    exit(1);
+  while (argc > 1) {
+    if ((strcmp(argv[1], "-b") == 0)) {
+      blank = 1;
+      argc--;
+      argv++;
+    } else if ((strcmp(argv[1], "-f") == 0)) {
+      fork_after = 1;
+      argc--;
+      argv++;
+    } else {
+      fprintf(stderr,"xtrlock (version %s); usage: xtrlock [-b] [-f]\n",
+              program_version);
+      exit(1);
+    }
   }
   
   errno=0;  pw= getpwuid(getuid());
@@ -208,6 +216,17 @@ int main(int argc, char **argv){
     exit(1);
   }
 
+  if (fork_after) {
+    pid_t pid = fork();
+    if (pid < 0) {
+      fprintf(stderr,"xtrlock (version %s): cannot fork: %s\n",
+              program_version, strerror(errno));
+      exit(1);
+    } else if (pid > 0) {
+      exit(0);
+    }
+  }
+
   for (;;) {
     XNextEvent(display,&ev);
     switch (ev.type) {