diff options
Diffstat (limited to 'nscd/nscd.c')
| -rw-r--r-- | nscd/nscd.c | 194 |
1 files changed, 100 insertions, 94 deletions
diff --git a/nscd/nscd.c b/nscd/nscd.c index 59d4a60e02..7e0b32ae19 100644 --- a/nscd/nscd.c +++ b/nscd/nscd.c @@ -19,8 +19,9 @@ /* nscd - Name Service Cache Daemon. Caches passwd and group. */ +#include <argp.h> #include <errno.h> -#include <getopt.h> +#include <error.h> #include <libintl.h> #include <locale.h> #include <pthread.h> @@ -58,90 +59,59 @@ thread_info_t thread_info; int do_shutdown = 0; int disabled_passwd = 0; int disabled_group = 0; +int go_background = 1; +const char *conffile = _PATH_NSCDCONF; static void termination_handler (int signum); static int check_pid (const char *file); static int write_pid (const char *file); -static void usage (int status) __attribute__ ((noreturn)); static void handle_requests (void); +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { "config-file", 'f', N_("NAME"), 0, + N_("Read configuration data from NAME") }, + { "debug", 'd', NULL, 0, + N_("Do not fork and display messages on the current tty") }, + { "shutdown", 'K', NULL, 0, N_("Shut the server down") }, + { NULL, 0, NULL, 0, NULL } +}; + +/* Short description of program. */ +static const char doc[] = N_("Name Switch Cache Daemon."); + +/* Prototype for option handler. */ +static error_t parse_opt __P ((int key, char *arg, struct argp_state *state)); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, NULL, doc, +}; + int main (int argc, char **argv) { - int go_background = 1; - const char *conffile = _PATH_NSCDCONF; + int remaining; /* Set locale via LC_ALL. */ setlocale (LC_ALL, ""); /* Set the text message domain. */ textdomain (PACKAGE); - while (1) + /* Parse and process arguments. */ + argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + if (remaining != 0) { - int c; - int option_index = 0; - static struct option long_options[] = { - { "debug", no_argument, NULL, 'd' }, - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, 'V' }, - { "shutdown", no_argument, NULL, 'K' }, - {NULL, 0, NULL, '\0'} - }; - - c = getopt_long (argc, argv, "df:ghKV", long_options, &option_index); - if (c == (-1)) - break; - switch (c) - { - case 'd': - debug_flag = 1; - go_background = 0; - break; - case 'f': - conffile = optarg; - break; - case 'h': - usage (EXIT_SUCCESS); - break; - case 'K': - if (getuid () != 0) - { - printf (_("Only root is allowed to use this option!\n\n")); - usage (EXIT_FAILURE); - } - { - int sock = __nscd_open_socket (); - request_header req; - ssize_t nbytes; - - if (sock == -1) - exit (EXIT_FAILURE); - - req.version = NSCD_VERSION; - req.type = SHUTDOWN; - req.key_len = 0; - nbytes = write (sock, &req, sizeof (request_header)); - close (sock); - if (nbytes != req.key_len) - exit (EXIT_FAILURE); - else - exit (EXIT_SUCCESS); - } - case 'g': - print_stat (); - exit (EXIT_SUCCESS); - case 'V': - printf ("nscd (GNU %s) %s\n", PACKAGE, VERSION); - printf (_("\ -Copyright (C) %s Free Software Foundation, Inc.\n\ -This is free software; see the source for copying conditions. There is NO\n\ -warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ -"), "1998"); - printf (_("Written by %s.\n"), "Thorsten Kukuk"); - exit (EXIT_SUCCESS); - default: - usage (EXIT_FAILURE); - } + error (0, 0, gettext ("wrong number of arguments")); + argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name); + exit (EXIT_FAILURE); } signal (SIGINT, termination_handler); @@ -190,6 +160,67 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ return 0; } + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, struct argp_state *state) +{ + switch (key) + { + case 'd': + debug_flag = 1; + go_background = 0; + break; + case 'f': + conffile = arg; + break; + case 'K': + if (getuid () != 0) + { + printf (_("Only root is allowed to use this option!\n\n")); + exit (EXIT_FAILURE); + } + { + int sock = __nscd_open_socket (); + request_header req; + ssize_t nbytes; + + if (sock == -1) + exit (EXIT_FAILURE); + + req.version = NSCD_VERSION; + req.type = SHUTDOWN; + req.key_len = 0; + nbytes = write (sock, &req, sizeof (request_header)); + close (sock); + if (nbytes != req.key_len) + exit (EXIT_FAILURE); + else + exit (EXIT_SUCCESS); + } + case 'g': + print_stat (); + exit (EXIT_SUCCESS); + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state) +{ + fprintf (stream, "nscd (GNU %s) %s\n", PACKAGE, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Free Software Foundation, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "1998"); + fprintf (stream, gettext ("Written by %s.\n"), "Thorsten Kukuk"); +} + + /* Create a socket connected to a name. */ int __nscd_open_socket (void) @@ -227,31 +258,6 @@ termination_handler (int signum) exit (EXIT_SUCCESS); } -/* Display usage information and exit. */ -static void -usage (int status) -{ - if (status != EXIT_SUCCESS) - fprintf (stderr, _("Try `%s --help' for more information.\n"), - program_invocation_name); - else - { - printf (_("\ -Usage: %s [OPTION]...\n\ - -d, --debug do not fork and display messages on the current tty\n\ - -h, --help display this help and exit\n\ - -V, --version output version information and exit\n\ - -f configuration-file read configuration data from the specified file.\n\ - -K, --shutdown shut the server down.\n\ - -g Prints configuration and statistics to stdout.\n"), - program_invocation_name); - fputs (_("\ -Report bugs using the `glibcbug' script to <bugs@gnu.org>.\n"), - stdout); - } - exit (status); -} - /* Returns 1 if the process in pid file FILE is running, 0 if not. */ static int check_pid (const char *file) |