X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Fngircd.c;h=8a93bcb00839a796b262b890d12b373d662ccf56;hp=e8370a1cce971f62a2ba8b561d61f26a04713f2e;hb=33fae67579eeab31d7f96f9e53f0529f584b0b1f;hpb=9069380ddfe8f1cf92ad711fbf050d2d65242091 diff --git a/src/ngircd/ngircd.c b/src/ngircd/ngircd.c index e8370a1c..8a93bcb0 100644 --- a/src/ngircd/ngircd.c +++ b/src/ngircd/ngircd.c @@ -255,11 +255,11 @@ main(int argc, const char *argv[]) NGIRCd_SignalRestart = false; NGIRCd_SignalQuit = false; - Random_Init(); - /* Initialize modules, part I */ Log_Init(!NGIRCd_NoDaemon); + Random_Init(); Conf_Init(); + Log_ReInit(); /* Initialize the "main program": chroot environment, user and * group ID, ... */ @@ -498,7 +498,8 @@ Pidfile_Create(pid_t pid) len = snprintf(pidbuf, sizeof pidbuf, "%ld\n", (long)pid); if (len < 0 || len >= (int)sizeof pidbuf) { - Log( LOG_ERR, "Error converting pid"); + Log(LOG_ERR, "Error converting pid"); + close(pidfd); return; } @@ -555,9 +556,10 @@ NGIRCd_getNobodyID(uid_t *uid, gid_t *gid ) #endif pwd = getpwnam("nobody"); - if (!pwd) return false; + if (!pwd) + return false; - if ( !pwd->pw_uid || !pwd->pw_gid) + if (!pwd->pw_uid || !pwd->pw_gid) return false; *uid = pwd->pw_uid; @@ -602,12 +604,12 @@ Random_Init(void) /** * Initialize ngIRCd daemon. * - * @param NGIRCd_NoDaemon Set to true if ngIRCd should run in the - * foreground and not as a daemon. - * @return true on success. + * @param NGIRCd_NoDaemon Set to true if ngIRCd should run in the + * foreground (and not as a daemon). + * @return true on success. */ static bool -NGIRCd_Init( bool NGIRCd_NoDaemon ) +NGIRCd_Init(bool NGIRCd_NoDaemon) { static bool initialized; bool chrooted = false; @@ -623,57 +625,72 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) /* open /dev/null before chroot() */ fd = open( "/dev/null", O_RDWR); if (fd < 0) - Log(LOG_WARNING, "Could not open /dev/null: %s", strerror(errno)); + Log(LOG_WARNING, "Could not open /dev/null: %s", + strerror(errno)); } + /* SSL initialization */ if (!ConnSSL_InitLibrary()) Log(LOG_WARNING, "Warning: Error during SSL initialization, continuing ..."); - if( Conf_Chroot[0] ) { - if( chdir( Conf_Chroot ) != 0 ) { - Log( LOG_ERR, "Can't chdir() in ChrootDir (%s): %s", Conf_Chroot, strerror( errno )); + /* Change root */ + if (Conf_Chroot[0]) { + if (chdir(Conf_Chroot) != 0) { + Log(LOG_ERR, "Can't chdir() in ChrootDir (%s): %s", + Conf_Chroot, strerror(errno)); goto out; } - if( chroot( Conf_Chroot ) != 0 ) { - if (errno != EPERM) { - Log( LOG_ERR, "Can't change root directory to \"%s\": %s", - Conf_Chroot, strerror( errno )); - goto out; - } + if (chroot(Conf_Chroot) != 0) { + Log(LOG_ERR, + "Can't change root directory to \"%s\": %s", + Conf_Chroot, strerror(errno)); + goto out; } else { chrooted = true; - Log( LOG_INFO, "Changed root and working directory to \"%s\".", Conf_Chroot ); + Log(LOG_INFO, + "Changed root and working directory to \"%s\".", + Conf_Chroot); } } + /* Check user ID */ if (Conf_UID == 0) { - Log(LOG_INFO, "ServerUID must not be 0, using \"nobody\" instead.", Conf_UID); - - if (! NGIRCd_getNobodyID(&Conf_UID, &Conf_GID)) { - Log(LOG_WARNING, "Could not get user/group ID of user \"nobody\": %s", - errno ? strerror(errno) : "not found" ); + pwd = getpwuid(0); + Log(LOG_INFO, + "ServerUID must not be %s(0), using \"nobody\" instead.", + pwd ? pwd->pw_name : "?"); + if (!NGIRCd_getNobodyID(&Conf_UID, &Conf_GID)) { + Log(LOG_WARNING, + "Could not get user/group ID of user \"nobody\": %s", + errno ? strerror(errno) : "not found" ); goto out; } } + /* Change group ID */ if (getgid() != Conf_GID) { - /* Change group ID */ if (setgid(Conf_GID) != 0) { real_errno = errno; - Log( LOG_ERR, "Can't change group ID to %u: %s", Conf_GID, strerror( errno )); + grp = getgrgid(Conf_GID); + Log(LOG_ERR, "Can't change group ID to %s(%u): %s", + grp ? grp->gr_name : "?", Conf_GID, + strerror(errno)); if (real_errno != EPERM) goto out; } } + /* Change user ID */ if (getuid() != Conf_UID) { - /* Change user ID */ if (setuid(Conf_UID) != 0) { real_errno = errno; - Log(LOG_ERR, "Can't change user ID to %u: %s", Conf_UID, strerror(errno)); - if (real_errno != EPERM) + pwd = getpwuid(Conf_UID); + Log(LOG_ERR, "Can't change user ID to %s(%u): %s", + pwd ? pwd->pw_name : "?", Conf_UID, + strerror(errno)); + if (real_errno != EPERM) goto out; } } @@ -683,26 +700,27 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) /* Normally a child process is forked which isn't any longer * connected to ther controlling terminal. Use "--nodaemon" * to disable this "daemon mode" (useful for debugging). */ - if ( ! NGIRCd_NoDaemon ) { - pid = fork( ); - if( pid > 0 ) { + if (!NGIRCd_NoDaemon) { + pid = fork(); + if (pid > 0) { /* "Old" process: exit. */ - exit( 0 ); + exit(0); } - if( pid < 0 ) { + if (pid < 0) { /* Error!? */ - fprintf( stderr, "%s: Can't fork: %s!\nFatal error, exiting now ...\n", - PACKAGE_NAME, strerror( errno )); - exit( 1 ); + fprintf(stderr, + "%s: Can't fork: %s!\nFatal error, exiting now ...\n", + PACKAGE_NAME, strerror(errno)); + exit(1); } /* New child process */ #ifndef NeXT - (void)setsid( ); + (void)setsid(); #else setpgrp(0, getpid()); #endif - if (chdir( "/" ) != 0) + if (chdir("/") != 0) Log(LOG_ERR, "Can't change directory to '/': %s", strerror(errno)); @@ -713,19 +731,19 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) } pid = getpid(); - Pidfile_Create( pid ); + Pidfile_Create(pid); /* Check UID/GID we are running as, can be different from values * configured (e. g. if we were already started with a UID>0. */ Conf_UID = getuid(); Conf_GID = getgid(); - pwd = getpwuid( Conf_UID ); - grp = getgrgid( Conf_GID ); + pwd = getpwuid(Conf_UID); + grp = getgrgid(Conf_GID); Log(LOG_INFO, "Running as user %s(%ld), group %s(%ld), with PID %ld.", - pwd ? pwd->pw_name : "unknown", (long)Conf_UID, - grp ? grp->gr_name : "unknown", (long)Conf_GID, (long)pid); + pwd ? pwd->pw_name : "unknown", (long)Conf_UID, + grp ? grp->gr_name : "unknown", (long)Conf_GID, (long)pid); if (chrooted) { Log(LOG_INFO, "Running with root directory \"%s\".", @@ -734,20 +752,23 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) } else Log(LOG_INFO, "Not running with changed root directory."); - /* Change working directory to home directory of the user - * we are running as (only when running in daemon mode and not in chroot) */ + /* Change working directory to home directory of the user we are + * running as (only when running in daemon mode and not in chroot) */ + + if (NGIRCd_NoDaemon) + return true; if (pwd) { - if (!NGIRCd_NoDaemon ) { - if( chdir( pwd->pw_dir ) == 0 ) - Log( LOG_DEBUG, "Changed working directory to \"%s\" ...", pwd->pw_dir ); - else - Log( LOG_INFO, "Notice: Can't change working directory to \"%s\": %s", - pwd->pw_dir, strerror( errno )); - } - } else { - Log( LOG_ERR, "Can't get user informaton for UID %d!?", Conf_UID ); - } + if (chdir(pwd->pw_dir) == 0) + Log(LOG_DEBUG, + "Changed working directory to \"%s\" ...", + pwd->pw_dir); + else + Log(LOG_INFO, + "Notice: Can't change working directory to \"%s\": %s", + pwd->pw_dir, strerror(errno)); + } else + Log(LOG_ERR, "Can't get user informaton for UID %d!?", Conf_UID); return true; out: