1 /* $NetBSD: main.c,v 1.5 2006/10/22 21:16:58 christos Exp $ */
2
3 /*
4 * Copyright (c) 1999 Alistair G. Crooks. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote
15 * products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 #include <err.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <unistd.h>
35
36 #include "usermgmt.h"
37
38 enum {
39 MaxCmdWords = 2
40 };
41
42 /* this struct describes a command */
43 typedef struct cmd_t {
44 int c_wc; /* word count */
45 const char *c_word[MaxCmdWords]; /* command words */
46 int (*c_func)(int, char **); /* called function */
47 } cmd_t;
48
49 /* despatch table for commands */
50 static cmd_t cmds[] = {
51 { 1, { "useradd", NULL }, useradd },
52 { 2, { "user", "add" }, useradd },
53 { 1, { "usermod", NULL }, usermod },
54 { 2, { "user", "mod" }, usermod },
55 { 1, { "userdel", NULL }, userdel },
56 { 2, { "user", "del" }, userdel },
57 #ifdef EXTENSIONS
58 { 1, { "userinfo", NULL }, userinfo },
59 { 2, { "user", "info" }, userinfo },
60 #endif
61 { 1, { "groupadd", NULL }, groupadd },
62 { 2, { "group", "add" }, groupadd },
63 { 1, { "groupmod", NULL }, groupmod },
64 { 2, { "group", "mod" }, groupmod },
65 { 1, { "groupdel", NULL }, groupdel },
66 { 2, { "group", "del" }, groupdel },
67 #ifdef EXTENSIONS
68 { 1, { "groupinfo", NULL }, groupinfo },
69 { 2, { "group", "info" }, groupinfo },
70 #endif
71 { .c_wc = 0 }
72 };
73
74 int
main(int argc,char ** argv)75 main(int argc, char **argv)
76 {
77 cmd_t *cmdp;
78 int matched;
79 int i;
80
81 for (cmdp = cmds ; cmdp->c_wc > 0 ; cmdp++) {
82 for (matched = i = 0 ; i < cmdp->c_wc && i < MaxCmdWords ; i++) {
83 if (argc > i) {
84 if (strcmp((i == 0) ? getprogname() : argv[i],
85 cmdp->c_word[i]) == 0) {
86 matched += 1;
87 } else {
88 break;
89 }
90 }
91 }
92 if (matched == cmdp->c_wc) {
93 return (*cmdp->c_func)(argc - (matched - 1), argv + (matched - 1));
94 }
95 }
96 usermgmt_usage(getprogname());
97 errx(EXIT_FAILURE, "Program `%s' not recognised", getprogname());
98 /* NOTREACHED */
99 }
100