1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 #include <sys/types.h>
29 #include <stdio.h>
30 #include <ctype.h>
31 #include <sys/stat.h>
32 #include <project.h>
33 #include <unistd.h>
34 #include <userdefs.h>
35 #include <errno.h>
36 #include <nss_dbdefs.h>
37 #include "users.h"
38 #include "messages.h"
39
40 int
edit_project(char * login,char * new_login,projid_t projids[],int overwrite)41 edit_project(char *login, char *new_login, projid_t projids[], int overwrite)
42 {
43 char **memptr;
44 char t_name[] = "/etc/projtmp.XXXXXX";
45 FILE *e_fptr, *t_fptr;
46 struct project *p_ptr;
47 struct project p_work;
48 char workbuf[NSS_LINELEN_PROJECT];
49 int i, modified = 0;
50 struct stat sbuf;
51 int p_length;
52 char p_string[NSS_LINELEN_PROJECT];
53 long p_curr = 0;
54 int exist;
55 int fd;
56
57 if ((e_fptr = fopen(PROJF_PATH, "r")) == NULL) {
58 return (EX_UPDATE);
59 }
60
61 if (fstat(fileno(e_fptr), &sbuf) != 0)
62 return (EX_UPDATE);
63
64 if ((fd = mkstemp(t_name)) < 0) {
65 return (EX_UPDATE);
66 }
67
68 if ((t_fptr = fdopen(fd, "w+")) == NULL) {
69 (void) close(fd);
70 (void) unlink(t_name);
71 return (EX_UPDATE);
72 }
73
74 /*
75 * Get ownership and permissions correct
76 */
77
78 if (fchmod(fd, sbuf.st_mode) != 0 ||
79 fchown(fd, sbuf.st_uid, sbuf.st_gid) != 0) {
80 (void) fclose(t_fptr);
81 (void) unlink(t_name);
82 return (EX_UPDATE);
83 }
84
85 p_curr = ftell(e_fptr);
86
87 /* Make TMP file look like we want project file to look */
88
89 while (fgets(p_string, NSS_LINELEN_PROJECT - 1, e_fptr)) {
90 /* While there is another group string */
91
92 p_length = strlen(p_string);
93 (void) fseek(e_fptr, p_curr, SEEK_SET);
94 p_ptr = fgetprojent(e_fptr, &p_work, &workbuf,
95 sizeof (workbuf));
96 p_curr = ftell(e_fptr);
97
98 if (p_ptr == NULL) {
99 /*
100 * tried to parse a proj string over
101 * NSS_LINELEN_PROJECT chars
102 */
103 errmsg(M_PROJ_ENTRY_OVF, NSS_LINELEN_PROJECT);
104 modified = 0; /* bad project file: cannot rebuild */
105 break;
106 }
107
108 /* first delete the login from the project, if it's there */
109 if (overwrite || !projids) {
110 if (p_ptr->pj_users != NULL) {
111 for (memptr = p_ptr->pj_users; *memptr;
112 memptr++) {
113 if (strcmp(*memptr, login) == 0) {
114 /* Delete this one */
115 char **from = memptr + 1;
116 p_length -= (strlen(*memptr)+1);
117 do {
118 *(from - 1) = *from;
119 } while (*from++);
120
121 modified++;
122 break;
123 }
124 }
125 }
126 }
127
128 /* now check to see if project is one to add to */
129 if (projids) {
130 for (i = 0; projids[i] != -1; i++) {
131 if (p_ptr->pj_projid == projids[i]) {
132 /* Scan for dups */
133 exist = 0;
134 for (memptr = p_ptr->pj_users; *memptr;
135 memptr++) {
136 if (strncmp(*memptr, new_login ?
137 new_login : login,
138 strlen(*memptr)) == 0)
139 exist++;
140 }
141 p_length += strlen(new_login ?
142 new_login : login) + 1;
143
144 if (p_length >=
145 NSS_LINELEN_PROJECT - 1) {
146 errmsg(M_PROJ_ENTRY_OVF,
147 NSS_LINELEN_PROJECT);
148 break;
149 } else {
150 if (!exist) {
151 *memptr++ = new_login ?
152 new_login : login;
153 *memptr = NULL;
154 modified++;
155 }
156 }
157 }
158 }
159 }
160 putprojent(p_ptr, t_fptr);
161 }
162
163 (void) fclose(e_fptr);
164 (void) fclose(t_fptr);
165
166 /* Now, update project file, if it was modified */
167 if (modified && rename(t_name, PROJF_PATH) < 0) {
168 (void) unlink(t_name);
169 return (EX_UPDATE);
170 }
171
172 (void) unlink(t_name);
173 return (EX_SUCCESS);
174 }
175