rnd-20020318-1-src

[rocksndiamonds.git] / src / libgame / misc.c

diff --git a/src/libgame/misc.c b/src/libgame/misc.c
index f9abe2ad457e6995aceaf0edaa35f877a851e974..190901ced6e6166f8d8851ddb161ddfd98b05273 100644 (file)
--- a/src/libgame/misc.c
+++ b/src/libgame/misc.c
@@ -1275,10 +1275,42 @@ inline void swap_number_pairs(int *x1, int *y1, int *x2, int *y2)
 /* some stuff from "files.c"                                                 */
 /* ========================================================================= */
 
+#if defined(PLATFORM_WIN32)
+#ifndef S_IRGRP
+#define S_IRGRP S_IRUSR
+#endif
+#ifndef S_IROTH
+#define S_IROTH S_IRUSR
+#endif
+#ifndef S_IWGRP
+#define S_IWGRP S_IWUSR
+#endif
+#ifndef S_IWOTH
+#define S_IWOTH S_IWUSR
+#endif
+#ifndef S_IXGRP
+#define S_IXGRP S_IXUSR
+#endif
+#ifndef S_IXOTH
+#define S_IXOTH S_IXUSR
+#endif
+#endif /* PLATFORM_WIN32 */
+
+/* file permissions for newly written files */
 #define MODE_R_ALL             (S_IRUSR | S_IRGRP | S_IROTH)
 #define MODE_W_ALL             (S_IWUSR | S_IWGRP | S_IWOTH)
 #define MODE_X_ALL             (S_IXUSR | S_IXGRP | S_IXOTH)
-#define USERDATA_DIR_MODE      (MODE_R_ALL | MODE_X_ALL | S_IWUSR)
+#define MODE_W_ALL             (S_IWUSR | S_IWGRP | S_IWOTH)
+
+#define MODE_W_USR_GRP         (S_IWUSR | S_IWGRP)
+#define MODE_W_NEW_DIR         (S_ISGID | MODE_W_USR_GRP)
+
+#define USERDATA_DIR_MODE      (MODE_R_ALL | MODE_X_ALL | MODE_W_NEW_DIR)
+
+#define LEVEL_PERMS            (MODE_R_ALL | MODE_W_USR_GRP)
+#define SCORE_PERMS            LEVEL_PERMS
+#define TAPE_PERMS             LEVEL_PERMS
+#define SETUP_PERMS            LEVEL_PERMS
 
 char *getUserDataDir(void)
 {
@@ -1297,6 +1329,14 @@ char *getUserDataDir(void)
 
 void createDirectory(char *dir, char *text)
 {
+#if defined(PLATFORM_UNIX)
+  /* leave "other" permissions in umask untouched, but ensure group parts
+     of USERDATA_DIR_MODE are not masked */
+  mode_t normal_umask = umask(0);
+  mode_t group_umask = ~(USERDATA_DIR_MODE & S_IRWXG);
+  umask(normal_umask & group_umask);
+#endif
+
   if (access(dir, F_OK) != 0)
 #if defined(PLATFORM_WIN32)
     if (mkdir(dir) != 0)
@@ -1304,6 +1344,10 @@ void createDirectory(char *dir, char *text)
     if (mkdir(dir, USERDATA_DIR_MODE) != 0)
 #endif
       Error(ERR_WARN, "cannot create %s directory '%s'", text, dir);
+
+#if defined(PLATFORM_UNIX)
+  umask(normal_umask);         /* reset normal umask */
+#endif
 }
 
 void InitUserDataDirectory()
@@ -1311,6 +1355,26 @@ void InitUserDataDirectory()
   createDirectory(getUserDataDir(), "user data");
 }
 
+void SetFilePermissions_Level(char *filename)
+{
+  chmod(filename, LEVEL_PERMS);
+}
+
+void SetFilePermissions_Tape(char *filename)
+{
+  chmod(filename, TAPE_PERMS);
+}
+
+void SetFilePermissions_Score(char *filename)
+{
+  chmod(filename, SCORE_PERMS);
+}
+
+void SetFilePermissions_Setup(char *filename)
+{
+  chmod(filename, SETUP_PERMS);
+}
+
 
 /* ========================================================================= */
 /* functions only needed for non-Unix (non-command-line) systems */