3 * David L. Nugent. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/usr.sbin/pw/grupd.c,v 1.8 1999/10/26 04:27:14 davidn Exp $
27 * $DragonFly: src/usr.sbin/pw/grupd.c,v 1.2 2003/06/17 04:30:01 dillon Exp $
35 #include <sys/types.h>
37 #include <sys/param.h>
41 static char * grpath = _PATH_PWD;
44 setgrdir(const char * dir)
49 char * d = malloc(strlen(dir)+1);
52 grpath = strcpy(d, dir);
58 getgrpath(const char * file)
60 static char pathbuf[MAXPATHLEN];
62 snprintf(pathbuf, sizeof pathbuf, "%s/%s", grpath, file);
70 * This is a stub for now, but maybe eventually be functional
71 * if ever an indexed version of /etc/groups is implemented.
78 fmtgrentry(char **buf, int * buflen, struct group * grp, int type)
83 * Since a group line is of arbitrary length,
84 * we need to calculate up-front just how long
85 * it will need to be...
87 /* groupname : password : gid : */
88 l = strlen(grp->gr_name) + 1 + strlen(grp->gr_passwd) + 1 + 5 + 1;
89 /* group members + comma separator */
90 for (i = 0; grp->gr_mem[i] != NULL; i++) {
91 l += strlen(grp->gr_mem[i]) + 1;
93 l += 2; /* For newline & NUL */
94 if (extendline(buf, buflen, l) == -1)
98 * Now we can safely format
100 if (type == PWF_STANDARD)
101 l = sprintf(*buf, "%s:*:%ld:", grp->gr_name, (long) grp->gr_gid);
103 l = sprintf(*buf, "%s:%s:%ld:", grp->gr_name, grp->gr_passwd, (long) grp->gr_gid);
108 for (i = 0; grp->gr_mem[i] != NULL; i++) {
109 l += sprintf(*buf + l, "%s%s", i ? "," : "", grp->gr_mem[i]);
120 fmtgrent(char **buf, int * buflen, struct group * grp)
122 return fmtgrentry(buf, buflen, grp, PWF_STANDARD);
127 gr_update(struct group * grp, char const * group, int mode)
135 l = snprintf(pfx, sizeof pfx, "%s:", group);
138 * Update the group file
140 if (grp != NULL && fmtgrentry(&grbuf, &grbuflen, grp, PWF_PASSWD) == -1)
143 l = fileupdate(getgrpath(_GROUP), 0644, grbuf, pfx, l, mode);
154 addgrent(struct group * grp)
156 return gr_update(grp, grp->gr_name, UPD_CREATE);
160 chggrent(char const * login, struct group * grp)
162 return gr_update(grp, login, UPD_REPLACE);
166 delgrent(struct group * grp)
168 return gr_update(NULL, grp->gr_name, UPD_DELETE);