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start unifying help handling

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This commit is contained in:
Mike Frysinger 2007-04-17 12:44:32 +00:00
parent f5e65274f0
commit 9d50d4cb25
5 changed files with 82 additions and 53 deletions
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26
src/_usage.c Normal file
View File

@ -0,0 +1,26 @@
/*
* @file _usage.c
* @brief standardize help/usage output across all our programs
* @internal
*
* Copyright 2007 Gentoo Foundation
* Released under the GPLv2
*/
#ifndef APPLET
# error you forgot to define APPLET
#endif
static void usage (int exit_status)
{
int i;
printf ("Usage: " APPLET " [options]\n\n");
printf ("Options: [" getoptstring "]\n");
for (i = 0; longopts[i].name; ++i)
printf (" -%c, --%s\n", longopts[i].val, longopts[i].name);
exit (exit_status);
}
#define case_RC_COMMON_GETOPT \
case 'h': usage (EXIT_SUCCESS); \
default: usage (EXIT_FAILURE);

29
src/fstabinfo.c
View File

@ -5,6 +5,8 @@
Copyright 2007 Gentoo Foundation
*/
#define APPLET "fstabinfo"
#include <errno.h>
#include <getopt.h>
#include <libgen.h>
@ -54,6 +56,17 @@ static struct mntent *getmntfile (FILE *fp, const char *file)
}
#endif
#define getoptstring "f:m:o:p:h"
static struct option longopts[] = {
{ "fstype", 1, NULL, 'f'},
{ "mountcmd", 1, NULL, 'm'},
{ "opts", 1, NULL, 'o'},
{ "passno", 1, NULL, 'p'},
{ "help", 0, NULL, 'h'},
{ NULL, 0, NULL, 0}
};
#include "_usage.c"
int main (int argc, char **argv)
{
#ifdef HAVE_GETMNTENT
@ -67,15 +80,7 @@ int main (int argc, char **argv)
int n = 0;
char c;
static struct option longopts[] = {
{ "fstype", 1, NULL, 'f'},
{ "mountcmd", 1, NULL, 'm'},
{ "opts", 1, NULL, 'o'},
{ "passno", 1, NULL, 'p'},
{ NULL, 0, NULL, 0}
};
while ((c = getopt_long (argc, argv, "f:m:o:p:",
while ((c = getopt_long (argc, argv, getoptstring,
longopts, (int *) 0)) != -1)
{
#ifdef HAVE_GETMNTENT
@ -133,9 +138,12 @@ int main (int argc, char **argv)
break;
}
case 'h':
END_ENT;
usage (EXIT_SUCCESS);
default:
END_ENT;
exit (EXIT_FAILURE);
usage (EXIT_FAILURE);
}
END_ENT;
@ -146,4 +154,3 @@ int main (int argc, char **argv)
exit (result);
}

19
src/mountinfo.c
View File

@ -5,6 +5,8 @@
Copyright 2007 Gentoo Foundation
*/
#define APPLET "mountinfo"
#include <sys/types.h>
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/param.h>
@ -139,16 +141,7 @@ static struct option longopts[] = {
{ "help", 0, NULL, 'h'},
{ NULL, 0, NULL, 0}
};
static void usage (int exit_status)
{
int i;
printf ("Usage: mountinfo [options]\n\n");
printf ("Options:\n");
for (i = 0; longopts[i].name; ++i)
printf (" -%c, --%s\n", longopts[i].val, longopts[i].name);
exit (exit_status);
}
#include "_usage.c"
int main (int argc, char **argv)
{
@ -219,11 +212,7 @@ int main (int argc, char **argv)
reverse = true;
break;
case 'h':
usage (EXIT_SUCCESS);
default:
usage (EXIT_FAILURE);
case_RC_COMMON_GETOPT
}
while (optind < argc) {

29
src/rc-status.c
View File

@ -5,6 +5,8 @@
Released under the GPLv2
*/
#define APPLET "rc-status"
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
@ -51,6 +53,17 @@ static void print_service (char *service)
ebracket (cols, color, status);
}
#define getoptstring "alsuh"
const struct option longopts[] = {
{"all", 0, NULL, 'a'},
{"list", 0, NULL, 'l'},
{"servicelist", 0, NULL, 's'},
{"unused", 0, NULL, 'u'},
{"help", 0, NULL, 'h'},
{NULL, 0, NULL, 0}
};
#include "_usage.c"
int main (int argc, char **argv)
{
char **levels = NULL;
@ -62,15 +75,7 @@ int main (int argc, char **argv)
int i;
int j;
const struct option longopts[] = {
{"all", 0, NULL, 'a'},
{"list", 0, NULL, 'l'},
{"servicelist", 0, NULL, 's'},
{"unused", 0, NULL, 'u'},
{NULL, 0, NULL, 0}
};
while ((c = getopt_long(argc, argv, "alsu", longopts, &option_index)) != -1)
while ((c = getopt_long(argc, argv, getoptstring, longopts, &option_index)) != -1)
switch (c) {
case 'a':
levels = rc_get_runlevels ();
@ -103,10 +108,8 @@ int main (int argc, char **argv)
rc_strlist_free (levels);
rc_strlist_free (services);
exit (EXIT_SUCCESS);
case '?':
exit (EXIT_FAILURE);
default:
exit (EXIT_FAILURE);
case_RC_COMMON_GETOPT
}
while (optind < argc)

28
src/runscript.c
View File

@ -6,6 +6,8 @@
* Distributed under the terms of the GNU General Public License v2
*/
#define APPLET "runscript"
#include <sys/types.h>
#include <sys/signal.h>
#include <sys/stat.h>
@ -808,6 +810,19 @@ static void svc_restart (const char *service, bool deps)
}
}
#define getoptstring "dCDNqvh"
static struct option longopts[] = {
{ "debug", 0, NULL, 'd'},
{ "nocolor", 0, NULL, 'C'},
{ "nocolour", 0, NULL, 'C'},
{ "nodeps", 0, NULL, 'D'},
{ "quiet", 0, NULL, 'q'},
{ "verbose", 0, NULL, 'v'},
{ "help", 0, NULL, 'h'},
{ NULL, 0, NULL, 0}
};
#include "_usage.c"
int main (int argc, char **argv)
{
const char *service = argv[1];
@ -818,17 +833,6 @@ int main (int argc, char **argv)
int retval;
char c;
static struct option longopts[] = {
{ "debug", 0, NULL, 'd'},
{ "help", 0, NULL, 'h'},
{ "nocolor", 0, NULL, 'C'},
{ "nocolour", 0, NULL, 'C'},
{ "nodeps", 0, NULL, 'D'},
{ "quiet", 0, NULL, 'q'},
{ "verbose", 0, NULL, 'v'},
{ NULL, 0, NULL, 0}
};
/* Show help if insufficient args */
if (argc < 3) {
execl (RCSCRIPT_HELP, RCSCRIPT_HELP, service, (char *) NULL);
@ -922,7 +926,7 @@ int main (int argc, char **argv)
argv++;
/* Right then, parse any options there may be */
while ((c = getopt_long (argc, argv, "dhCDNqv",
while ((c = getopt_long (argc, argv, getoptstring,
longopts, (int *) 0)) != -1)
switch (c) {
case 'd':