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* src/chfn.c, man/chfn.1.xml: Add support for long options.

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* src/chfn.c, man/chfn.1.xml: Add -u/--help option
This commit is contained in:
nekral-guest
2011-11-06 18:39:19 +00:00
parent e2068416c9
commit b26f73f427
3 changed files with 118 additions and 36 deletions
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71
src/chfn.c
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@ -2,7 +2,7 @@
* Copyright (c) 1989 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 2000, Marek Michałkiewicz
* Copyright (c) 2001 - 2006, Tomasz Kłoczko
* Copyright (c) 2007 - 2008, Nicolas François
* Copyright (c) 2007 - 2011, Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -39,6 +39,7 @@
#include <signal.h>
#include <stdio.h>
#include <sys/types.h>
#include <getopt.h>
#ifdef WITH_SELINUX
#include <selinux/selinux.h>
#include <selinux/av_permissions.h>
@ -79,7 +80,7 @@ static bool pw_locked = false;
/* local function prototypes */
static void fail_exit (int code);
static void usage (void);
static /*@noreturn@*/void usage (int status);
static bool may_change_field (int);
static void new_fields (void);
static char *copy_field (char *, char *, char *);
@ -110,19 +111,22 @@ static void fail_exit (int code)
/*
* usage - print command line syntax and exit
*/
static void usage (void)
static /*@noreturn@*/void usage (int status)
{
if (amroot) {
fprintf (stderr,
_("Usage: %s [-f full_name] [-r room_no] "
"[-w work_ph]\n"
"\t[-h home_ph] [-o other] [user]\n"), Prog);
} else {
fprintf (stderr,
_("Usage: %s [-f full_name] [-r room_no] "
"[-w work_ph] [-h home_ph]\n"), Prog);
}
exit (E_USAGE);
FILE *usageout = (E_SUCCESS != status) ? stderr : stdout;
(void) fprintf (usageout,
_("Usage: %s [options] [LOGIN]\n"
"\n"
"Options:\n"),
Prog);
(void) fputs (_(" -f, --full-name FULL_NAME change user's full name\n"), usageout);
(void) fputs (_(" -h, --home-phone HOME_PHONE change user's home phone number\n"), usageout);
(void) fputs (_(" -o, --other OTHER_INFO change user's other GECOS information\n"), usageout);
(void) fputs (_(" -r, --room ROOM_NUMBER change user's room number\n"), usageout);
(void) fputs (_(" -u, --help display this help message and exit\n"), usageout);
(void) fputs (_(" -w, --work-phone WORK_PHONE change user's office phone number\n"), usageout);
(void) fputs ("\n", usageout);
exit (status);
}
/*
@ -262,7 +266,16 @@ static char *copy_field (char *in, char *out, char *extra)
*/
static void process_flags (int argc, char **argv)
{
int flag; /* flag currently being processed */
int c; /* flag currently being processed */
static struct option long_options[] = {
{"full-name", required_argument, NULL, 'f'},
{"home-phone", required_argument, NULL, 'h'},
{"other", required_argument, NULL, 'o'},
{"room", required_argument, NULL, 'r'},
{"help", no_argument, NULL, 'u'},
{"work-phone", required_argument, NULL, 'w'},
{NULL, 0, NULL, '\0'}
};
/*
* The remaining arguments will be processed one by one and executed
@ -271,8 +284,9 @@ static void process_flags (int argc, char **argv)
* environment and must agree with the real UID. Also, the UID will
* be checked for any commands which are restricted to root only.
*/
while ((flag = getopt (argc, argv, "f:r:w:h:o:")) != EOF) {
switch (flag) {
while ((c = getopt_long (argc, argv, "f:h:o:r:uw:",
long_options, NULL)) != -1) {
switch (c) {
case 'f':
if (!may_change_field ('f')) {
fprintf (stderr,
@ -291,15 +305,6 @@ static void process_flags (int argc, char **argv)
hflg = true;
STRFCPY (homeph, optarg);
break;
case 'r':
if (!may_change_field ('r')) {
fprintf (stderr,
_("%s: Permission denied.\n"), Prog);
exit (E_NOPERM);
}
rflg = true;
STRFCPY (roomno, optarg);
break;
case 'o':
if (!amroot) {
fprintf (stderr,
@ -309,6 +314,18 @@ static void process_flags (int argc, char **argv)
oflg = true;
STRFCPY (slop, optarg);
break;
case 'r':
if (!may_change_field ('r')) {
fprintf (stderr,
_("%s: Permission denied.\n"), Prog);
exit (E_NOPERM);
}
rflg = true;
STRFCPY (roomno, optarg);
break;
case 'u':
usage (E_SUCCESS);
/*@notreached@*/break;
case 'w':
if (!may_change_field ('w')) {
fprintf (stderr,
@ -319,7 +336,7 @@ static void process_flags (int argc, char **argv)
STRFCPY (workph, optarg);
break;
default:
usage ();
usage (E_USAGE);
}
}
}