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parse_group.c (50476) parse_group.c (90779)
1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35#if 0
36static const char sccsid[] = "@(#)getgrent.c 8.2 (Berkeley) 3/21/94";
37#endif
38static const char rcsid[] =
1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35#if 0
36static const char sccsid[] = "@(#)getgrent.c 8.2 (Berkeley) 3/21/94";
37#endif
38static const char rcsid[] =
39 "$FreeBSD: head/libexec/mknetid/parse_group.c 50476 1999-08-28 00:22:10Z peter $";
39 "$FreeBSD: head/libexec/mknetid/parse_group.c 90779 2002-02-17 19:09:20Z imp $";
40#endif /* not lint */
41
42/*
43 * This is a slightly modified chunk of getgrent(3). All the YP support
44 * and unneeded functions have been stripped out.
45 */
46
47#include <sys/types.h>
48#include <grp.h>
49#include <stdio.h>
50#include <stdlib.h>
51#include <string.h>
52
53FILE *_gr_fp;
54static struct group _gr_group;
55static int _gr_stayopen;
40#endif /* not lint */
41
42/*
43 * This is a slightly modified chunk of getgrent(3). All the YP support
44 * and unneeded functions have been stripped out.
45 */
46
47#include <sys/types.h>
48#include <grp.h>
49#include <stdio.h>
50#include <stdlib.h>
51#include <string.h>
52
53FILE *_gr_fp;
54static struct group _gr_group;
55static int _gr_stayopen;
56static int grscan(), start_gr();
56static int grscan(int, int);
57static int start_gr(void);
57
58#define MAXGRP 200
59static char *members[MAXGRP];
60#define MAXLINELENGTH 1024
61static char line[MAXLINELENGTH];
62
63struct group *
58
59#define MAXGRP 200
60static char *members[MAXGRP];
61#define MAXLINELENGTH 1024
62static char line[MAXLINELENGTH];
63
64struct group *
64_getgrent()
65_getgrent(void)
65{
66 if (!_gr_fp && !start_gr()) {
67 return NULL;
68 }
69
70
66{
67 if (!_gr_fp && !start_gr()) {
68 return NULL;
69 }
70
71
71 if (!grscan(0, 0, NULL))
72 if (!grscan(0, 0))
72 return(NULL);
73 return(&_gr_group);
74}
75
76static int
73 return(NULL);
74 return(&_gr_group);
75}
76
77static int
77start_gr()
78start_gr(void)
78{
79 return 1;
80}
81
82int
79{
80 return 1;
81}
82
83int
83_setgroupent(stayopen)
84 int stayopen;
84_setgroupent(int stayopen)
85{
86 if (!start_gr())
87 return(0);
88 _gr_stayopen = stayopen;
89 return(1);
90}
91
92int
85{
86 if (!start_gr())
87 return(0);
88 _gr_stayopen = stayopen;
89 return(1);
90}
91
92int
93_setgrent()
93_setgrent(void)
94{
95 return(_setgroupent(0));
96}
97
98void
94{
95 return(_setgroupent(0));
96}
97
98void
99_endgrent()
99_endgrent(void)
100{
101 if (_gr_fp) {
102 (void)fclose(_gr_fp);
103 _gr_fp = NULL;
104 }
105}
106
107static int
100{
101 if (_gr_fp) {
102 (void)fclose(_gr_fp);
103 _gr_fp = NULL;
104 }
105}
106
107static int
108grscan(search, gid, name)
109 register int search, gid;
110 register char *name;
108grscan(int search, int gid)
111{
109{
112 register char *cp, **m;
110 char *cp, **m;
113 char *bp;
114 for (;;) {
115 if (!fgets(line, sizeof(line), _gr_fp))
116 return(0);
117 bp = line;
118 /* skip lines that are too big */
119 if (!index(line, '\n')) {
120 int ch;
121
122 while ((ch = getc(_gr_fp)) != '\n' && ch != EOF)
123 ;
124 continue;
125 }
126 if ((_gr_group.gr_name = strsep(&bp, ":\n")) == NULL)
127 break;
128 if (_gr_group.gr_name[0] == '+')
129 continue;
111 char *bp;
112 for (;;) {
113 if (!fgets(line, sizeof(line), _gr_fp))
114 return(0);
115 bp = line;
116 /* skip lines that are too big */
117 if (!index(line, '\n')) {
118 int ch;
119
120 while ((ch = getc(_gr_fp)) != '\n' && ch != EOF)
121 ;
122 continue;
123 }
124 if ((_gr_group.gr_name = strsep(&bp, ":\n")) == NULL)
125 break;
126 if (_gr_group.gr_name[0] == '+')
127 continue;
130
131 if (search && name) {
132 if(strcmp(_gr_group.gr_name, name)) {
133 continue;
134 }
135 }
136 if ((_gr_group.gr_passwd = strsep(&bp, ":\n")) == NULL)
137 break;;
138 if (!(cp = strsep(&bp, ":\n")))
139 continue;
140 _gr_group.gr_gid = atoi(cp);
128 if ((_gr_group.gr_passwd = strsep(&bp, ":\n")) == NULL)
129 break;;
130 if (!(cp = strsep(&bp, ":\n")))
131 continue;
132 _gr_group.gr_gid = atoi(cp);
141 if (search && name == NULL && _gr_group.gr_gid != gid)
133 if (search && _gr_group.gr_gid != gid)
142 continue;
143 cp = NULL;
144 if (bp == NULL) /* !! Must check for this! */
145 break;
146 for (m = _gr_group.gr_mem = members;; bp++) {
147 if (m == &members[MAXGRP - 1])
148 break;
149 if (*bp == ',') {

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135 cp = NULL;
136 if (bp == NULL) /* !! Must check for this! */
137 break;
138 for (m = _gr_group.gr_mem = members;; bp++) {
139 if (m == &members[MAXGRP - 1])
140 break;
141 if (*bp == ',') {

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