gpm-1.19.3-noworldwrite.patch

来自「gpm-1.20.0.tar.gz」· PATCH 代码 · 共 31 行

--- gpm-1.19.3/gpn.c.old	Mon Feb  5 07:10:04 2001
+++ gpm-1.19.3/gpn.c	Mon Feb  5 07:52:32 2001
@@ -223,11 +223,16 @@
 static void
 check_uniqueness(void)
 {
-  static char tmp_pidfile [] = GPM_NODE_DIR "gpmXXXXXX";
+  char *tmp_pidfile;
   FILE* fp = 0;
 
-  if (!mktemp(tmp_pidfile + strlen(GPM_NODE_DIR))) {
-    oops("mktemp()");
+  umask(022); /* make sure file will not be world-writable */
+
+  tmp_pidfile=(char *)malloc(strlen(GPM_NODE_DIR) + strlen("/gpmXXXXXX") +1);
+  strcpy(tmp_pidfile, GPM_NODE_DIR);
+  strcat(tmp_pidfile, "/gpmXXXXXX");
+  if (!mkstemp(tmp_pidfile)) {
+    oops("mkstemp()");
   } /*if*/
   if ((fp = fopen(tmp_pidfile,"w")) != NULL) {
     fprintf(fp,"%d\n",getpid());
@@ -248,6 +253,7 @@
     if (fp) {
       int old_pid = -1;
       fscanf(fp, "%d", &old_pid);
+      unlink(tmp_pidfile);
       gpm_oops(__FILE__,__LINE__,"gpm already running as pid %d", old_pid);
     } else {
       oops(GPM_NODE_PID);