NetBSD/usr.sbin/user/main.c

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/* $NetBSD: main.c,v 1.2 2001/02/19 23:22:49 cgd Exp $ */
/*
* Copyright (c) 1999 Alistair G. Crooks. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Alistair G. Crooks.
* 4. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "usermgmt.h"
enum {
MaxCmdWords = 2
};
/* this struct describes a command */
typedef struct cmd_t {
int c_wc; /* word count */
char *c_word[MaxCmdWords]; /* command words */
int (*c_func)(int argc, char **argv); /* called function */
} cmd_t;
/* despatch table for commands */
static cmd_t cmds[] = {
{ 1, { "useradd", NULL }, useradd },
{ 2, { "user", "add" }, useradd },
{ 1, { "usermod", NULL }, usermod },
{ 2, { "user", "mod" }, usermod },
{ 1, { "userdel", NULL }, userdel },
{ 2, { "user", "del" }, userdel },
#ifdef EXTENSIONS
{ 1, { "userinfo", NULL }, userinfo },
{ 2, { "user", "info" }, userinfo },
#endif
{ 1, { "groupadd", NULL }, groupadd },
{ 2, { "group", "add" }, groupadd },
{ 1, { "groupmod", NULL }, groupmod },
{ 2, { "group", "mod" }, groupmod },
{ 1, { "groupdel", NULL }, groupdel },
{ 2, { "group", "del" }, groupdel },
#ifdef EXTENSIONS
{ 1, { "groupinfo", NULL }, groupinfo },
{ 2, { "group", "info" }, groupinfo },
#endif
{ 0 }
};
int
main(int argc, char **argv)
{
cmd_t *cmdp;
int matched;
int i;
for (cmdp = cmds ; cmdp->c_wc > 0 ; cmdp++) {
for (matched = i = 0 ; i < cmdp->c_wc && i < MaxCmdWords ; i++) {
if (argc > i) {
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if (strcmp((i == 0) ? getprogname() : argv[i],
cmdp->c_word[i]) == 0) {
matched += 1;
} else {
break;
}
}
}
if (matched == cmdp->c_wc) {
return (*cmdp->c_func)(argc - (matched - 1), argv + (matched - 1));
}
}
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usermgmt_usage(getprogname());
errx(EXIT_FAILURE, "Program `%s' not recognised", getprogname());
/* NOTREACHED */
}