util.events: Rename add_plugin() and remove_plugin() to add_handlers() and remove_han...

[prosody.git] / util-src / pposix.c

diff --git a/util-src/pposix.c b/util-src/pposix.c
index d26639b24a58f37fa39723ba5b7e94ca5ad41275..94086ed64dc3ca24e77e7e8faec8a24dcecd7d96 100644 (file)
--- a/util-src/pposix.c
+++ b/util-src/pposix.c
@@ -13,7 +13,7 @@
 * POSIX support functions for Lua
 */
 
-#define MODULE_VERSION "0.3.0"
+#define MODULE_VERSION "0.3.1"
 
 #include <stdlib.h>
 #include <unistd.h>
@@ -25,6 +25,7 @@
 
 #include <syslog.h>
 #include <pwd.h>
+#include <grp.h>
 
 #include <string.h>
 #include <errno.h>
@@ -90,10 +91,14 @@ static int lc_daemonize(lua_State *L)
 
 const char * const facility_strings[] = {
                                        "auth",
+#if !(defined(sun) || defined(__sun))
                                        "authpriv",
+#endif
                                        "cron",
                                        "daemon",
+#if !(defined(sun) || defined(__sun))
                                        "ftp",
+#endif
                                        "kern",
                                        "local0",
                                        "local1",
@@ -112,10 +117,14 @@ const char * const facility_strings[] = {
                                };
 int facility_constants[] =     {
                                        LOG_AUTH,
+#if !(defined(sun) || defined(__sun))
                                        LOG_AUTHPRIV,
+#endif
                                        LOG_CRON,
                                        LOG_DAEMON,
+#if !(defined(sun) || defined(__sun))
                                        LOG_FTP,
+#endif
                                        LOG_KERN,
                                        LOG_LOCAL0,
                                        LOG_LOCAL1,
@@ -173,7 +182,7 @@ int level_constants[] =     {
                                LOG_INFO,
                                LOG_NOTICE,
                                LOG_WARNING,
-                               LOG_EMERG,
+                               LOG_CRIT,
                                -1
                        };
 int lc_syslog_log(lua_State* L)
@@ -291,6 +300,64 @@ int lc_setuid(lua_State* L)
        return 2;
 }
 
+int lc_setgid(lua_State* L)
+{
+       int gid = -1;
+       if(lua_gettop(L) < 1)
+               return 0;
+       if(!lua_isnumber(L, 1) && lua_tostring(L, 1))
+       {
+               /* Passed GID is actually a string, so look up the GID */
+               struct group *g;
+               g = getgrnam(lua_tostring(L, 1));
+               if(!g)
+               {
+                       lua_pushboolean(L, 0);
+                       lua_pushstring(L, "no-such-group");
+                       return 2;
+               }
+               gid = g->gr_gid;
+       }
+       else
+       {
+               gid = lua_tonumber(L, 1);
+       }
+       
+       if(gid>-1)
+       {
+               /* Ok, attempt setgid */
+               errno = 0;
+               if(setgid(gid))
+               {
+                       /* Fail */
+                       lua_pushboolean(L, 0);
+                       switch(errno)
+                       {
+                       case EINVAL:
+                               lua_pushstring(L, "invalid-gid");
+                               break;
+                       case EPERM:
+                               lua_pushstring(L, "permission-denied");
+                               break;
+                       default:
+                               lua_pushstring(L, "unknown-error");
+                       }
+                       return 2;
+               }
+               else
+               {
+                       /* Success! */
+                       lua_pushboolean(L, 1);
+                       return 1;
+               }
+       }
+       
+       /* Seems we couldn't find a valid GID to switch to */
+       lua_pushboolean(L, 0);
+       lua_pushstring(L, "invalid-gid");
+       return 2;
+}
+
 /*     Like POSIX's setrlimit()/getrlimit() API functions.
  *     
  *     Syntax:
@@ -306,11 +373,13 @@ int string2resource(const char *s) {
        if (!strcmp(s, "CPU")) return RLIMIT_CPU;
        if (!strcmp(s, "DATA")) return RLIMIT_DATA;
        if (!strcmp(s, "FSIZE")) return RLIMIT_FSIZE;
-       if (!strcmp(s, "MEMLOCK")) return RLIMIT_MEMLOCK;
        if (!strcmp(s, "NOFILE")) return RLIMIT_NOFILE;
+       if (!strcmp(s, "STACK")) return RLIMIT_STACK;
+#if !(defined(sun) || defined(__sun))
+       if (!strcmp(s, "MEMLOCK")) return RLIMIT_MEMLOCK;
        if (!strcmp(s, "NPROC")) return RLIMIT_NPROC;
        if (!strcmp(s, "RSS")) return RLIMIT_RSS;
-       if (!strcmp(s, "STACK")) return RLIMIT_STACK;
+#endif
        return -1;
 }
 
@@ -394,12 +463,20 @@ int lc_getrlimit(lua_State *L) {
        return 3;
 }
 
+void lc_abort(lua_State* L)
+{
+       abort();
+}
+
 /* Register functions */
 
 int luaopen_util_pposix(lua_State *L)
 {
        lua_newtable(L);
 
+       lua_pushcfunction(L, lc_abort);
+       lua_setfield(L, -2, "abort");
+
        lua_pushcfunction(L, lc_daemonize);
        lua_setfield(L, -2, "daemonize");
 
@@ -420,9 +497,13 @@ int luaopen_util_pposix(lua_State *L)
 
        lua_pushcfunction(L, lc_getuid);
        lua_setfield(L, -2, "getuid");
+       lua_pushcfunction(L, lc_getgid);
+       lua_setfield(L, -2, "getgid");
 
        lua_pushcfunction(L, lc_setuid);
        lua_setfield(L, -2, "setuid");
+       lua_pushcfunction(L, lc_setgid);
+       lua_setfield(L, -2, "setgid");
        
        lua_pushcfunction(L, lc_setrlimit);
        lua_setfield(L, -2, "setrlimit");