/*-
- * Copyright (c) 1996 by David L. Nugent <davidn@blaze.net.au>.
- * All rights reserved.
+ * Copyright (C) 1996
+ * David L. Nugent. 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 as
- * the first lines of this file unmodified.
+ * 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 David L. Nugent.
- * 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 DAVID L. NUGENT ``AS IS'' AND
+ * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``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 DAVID L. NUGENT BE LIABLE
+ * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS 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)
* 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.
- *
- * $Id$
*/
-#include <unistd.h>
+#ifndef lint
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif /* not lint */
+
#include <ctype.h>
+#include <err.h>
#include <termios.h>
+#include <stdbool.h>
+#include <unistd.h>
#include "pw.h"
#include "bitmap.h"
+static struct passwd *lookup_pwent(const char *user);
+static void delete_members(char ***members, int *grmembers, int *i,
+ struct carg *arg, struct group *grp);
static int print_group(struct group * grp, int pretty);
static gid_t gr_gidpolicy(struct userconf * cnf, struct cargs * args);
int
pw_group(struct userconf * cnf, int mode, struct cargs * args)
{
+ int rc;
struct carg *a_name = getarg(args, 'n');
struct carg *a_gid = getarg(args, 'g');
struct carg *arg;
struct group *grp = NULL;
- char *members[_UC_MAXGROUPS];
+ int grmembers = 0;
+ char **members = NULL;
static struct group fakegroup =
{
NULL
};
+ if (mode == M_LOCK || mode == M_UNLOCK)
+ errx(EX_USAGE, "'lock' command is not available for groups");
+
/*
* With M_NEXT, we only need to return the
* next gid to stdout
*/
- if (mode == M_NEXT)
- {
+ if (mode == M_NEXT) {
gid_t next = gr_gidpolicy(cnf, args);
if (getarg(args, 'q'))
return next;
if (mode == M_PRINT && getarg(args, 'a')) {
int pretty = getarg(args, 'P') != NULL;
- setgrent();
- while ((grp = getgrent()) != NULL)
+ SETGRENT();
+ while ((grp = GETGRENT()) != NULL)
print_group(grp, pretty);
- endgrent();
+ ENDGRENT();
return EXIT_SUCCESS;
}
if (a_gid == NULL) {
if (a_name == NULL)
- cmderr(EX_DATAERR, "group name or id required\n");
+ errx(EX_DATAERR, "group name or id required");
- if (mode != M_ADD && grp == NULL && isdigit(*a_name->val)) {
+ if (mode != M_ADD && grp == NULL && isdigit((unsigned char)*a_name->val)) {
(a_gid = a_name)->ch = 'g';
a_name = NULL;
}
}
- grp = (a_name != NULL) ? getgrnam(a_name->val) : getgrgid((gid_t) atoi(a_gid->val));
+ grp = (a_name != NULL) ? GETGRNAM(a_name->val) : GETGRGID((gid_t) atoi(a_gid->val));
if (mode == M_UPDATE || mode == M_DELETE || mode == M_PRINT) {
if (a_name == NULL && grp == NULL) /* Try harder */
- grp = getgrgid(atoi(a_gid->val));
+ grp = GETGRGID(atoi(a_gid->val));
if (grp == NULL) {
if (mode == M_PRINT && getarg(args, 'F')) {
+ char *fmems[1];
+ fmems[0] = NULL;
fakegroup.gr_name = a_name ? a_name->val : "nogroup";
fakegroup.gr_gid = a_gid ? (gid_t) atol(a_gid->val) : -1;
+ fakegroup.gr_mem = fmems;
return print_group(&fakegroup, getarg(args, 'P') != NULL);
}
- cmderr(EX_DATAERR, "unknown group `%s'\n", a_name ? a_name->val : a_gid->val);
+ errx(EX_DATAERR, "unknown group `%s'", a_name ? a_name->val : a_gid->val);
}
if (a_name == NULL) /* Needed later */
a_name = addarg(args, 'n', grp->gr_name);
if (mode == M_DELETE) {
gid_t gid = grp->gr_gid;
- if (delgrent(grp) == -1)
- cmderr(EX_IOERR, "Error updating group file: %s\n", strerror(errno));
+ rc = delgrent(grp);
+ if (rc == -1)
+ err(EX_IOERR, "group '%s' not available (NIS?)", grp->gr_name);
+ else if (rc != 0) {
+ warn("group update");
+ return EX_IOERR;
+ }
pw_log(cnf, mode, W_GROUP, "%s(%ld) removed", a_name->val, (long) gid);
return EXIT_SUCCESS;
} else if (mode == M_PRINT)
grp->gr_gid = (gid_t) atoi(a_gid->val);
if ((arg = getarg(args, 'l')) != NULL)
- grp->gr_name = arg->val;
+ grp->gr_name = pw_checkname((u_char *)arg->val, 0);
} else {
if (a_name == NULL) /* Required */
- cmderr(EX_DATAERR, "group name required\n");
+ errx(EX_DATAERR, "group name required");
else if (grp != NULL) /* Exists */
- cmderr(EX_DATAERR, "group name `%s' already exists\n", a_name->val);
+ errx(EX_DATAERR, "group name `%s' already exists", a_name->val);
- memset(members, 0, sizeof members);
+ extendarray(&members, &grmembers, 200);
+ members[0] = NULL;
grp = &fakegroup;
- grp->gr_name = a_name->val;
+ grp->gr_name = pw_checkname((u_char *)a_name->val, 0);
grp->gr_passwd = "*";
grp->gr_gid = gr_gidpolicy(cnf, args);
grp->gr_mem = members;
* software.
*/
- if ((arg = getarg(args, 'h')) != NULL) {
+ if ((arg = getarg(args, 'h')) != NULL ||
+ (arg = getarg(args, 'H')) != NULL) {
if (strcmp(arg->val, "-") == 0)
grp->gr_passwd = "*"; /* No access */
else {
int fd = atoi(arg->val);
+ int precrypt = (arg->ch == 'H');
int b;
int istty = isatty(fd);
struct termios t;
fflush(stdout);
}
if (b < 0) {
- perror("-h file descriptor");
+ warn("-h file descriptor");
return EX_OSERR;
}
line[b] = '\0';
if ((p = strpbrk(line, " \t\r\n")) != NULL)
*p = '\0';
if (!*line)
- cmderr(EX_DATAERR, "empty password read on file descriptor %d\n", fd);
- grp->gr_passwd = pw_pwcrypt(line);
+ errx(EX_DATAERR, "empty password read on file descriptor %d", fd);
+ if (precrypt) {
+ if (strchr(line, ':') != NULL)
+ return EX_DATAERR;
+ grp->gr_passwd = line;
+ } else
+ grp->gr_passwd = pw_pwcrypt(line);
}
}
- if (((arg = getarg(args, 'M')) != NULL || (arg = getarg(args, 'm')) != NULL) && arg->val) {
+ if (((arg = getarg(args, 'M')) != NULL ||
+ (arg = getarg(args, 'd')) != NULL ||
+ (arg = getarg(args, 'm')) != NULL) && arg->val) {
int i = 0;
char *p;
struct passwd *pwd;
- if (arg->ch == 'm') {
- while (i < _UC_MAXGROUPS && grp->gr_mem[i] != NULL) {
- members[i] = grp->gr_mem[i];
- i++;
+ /* Make sure this is not stay NULL with -M "" */
+ extendarray(&members, &grmembers, 200);
+ if (arg->ch == 'd')
+ delete_members(&members, &grmembers, &i, arg, grp);
+ else if (arg->ch == 'm') {
+ int k = 0;
+
+ while (grp->gr_mem[k] != NULL) {
+ if (extendarray(&members, &grmembers, i + 2) != -1)
+ members[i++] = grp->gr_mem[k];
+ k++;
}
}
- for (p = strtok(arg->val, ", \t"); i < _UC_MAXGROUPS && p != NULL; p = strtok(NULL, ", \t")) {
- int j;
- if ((pwd = getpwnam(p)) == NULL) {
- if (!isdigit(*p) || (pwd = getpwuid((uid_t) atoi(p))) == NULL)
- cmderr(EX_NOUSER, "user `%s' does not exist\n", p);
+
+ if (arg->ch != 'd')
+ for (p = strtok(arg->val, ", \t"); p != NULL; p = strtok(NULL, ", \t")) {
+ int j;
+
+ /*
+ * Check for duplicates
+ */
+ pwd = lookup_pwent(p);
+ for (j = 0; j < i && strcmp(members[j], pwd->pw_name) != 0; j++)
+ ;
+ if (j == i && extendarray(&members, &grmembers, i + 2) != -1)
+ members[i++] = newstr(pwd->pw_name);
}
- /*
- * Check for duplicates
- */
- for (j = 0; j < i && strcmp(members[j], pwd->pw_name)!=0; j++)
- ;
- if (j == i)
- members[i++] = newstr(pwd->pw_name);
- }
- while (i < _UC_MAXGROUPS)
+ while (i < grmembers)
members[i++] = NULL;
grp->gr_mem = members;
}
if (getarg(args, 'N') != NULL)
return print_group(grp, getarg(args, 'P') != NULL);
- if ((mode == M_ADD && !addgrent(grp)) || (mode == M_UPDATE && !chggrent(a_name->val, grp))) {
- perror("group update");
+ if (mode == M_ADD && (rc = addgrent(grp)) != 0) {
+ if (rc == -1)
+ warnx("group '%s' already exists", grp->gr_name);
+ else
+ warn("group update");
+ return EX_IOERR;
+ } else if (mode == M_UPDATE && (rc = chggrent(a_name->val, grp)) != 0) {
+ if (rc == -1)
+ warnx("group '%s' not available (NIS?)", grp->gr_name);
+ else
+ warn("group update");
return EX_IOERR;
}
/* grp may have been invalidated */
- if ((grp = getgrnam(a_name->val)) == NULL)
- cmderr(EX_SOFTWARE, "group disappeared during update\n");
+ if ((grp = GETGRNAM(a_name->val)) == NULL)
+ errx(EX_SOFTWARE, "group disappeared during update");
pw_log(cnf, mode, W_GROUP, "%s(%ld)", grp->gr_name, (long) grp->gr_gid);
+ if (members)
+ free(members);
+
return EXIT_SUCCESS;
}
+/*
+ * Lookup a passwd entry using a name or UID.
+ */
+static struct passwd *
+lookup_pwent(const char *user)
+{
+ struct passwd *pwd;
+
+ if ((pwd = GETPWNAM(user)) == NULL &&
+ (!isdigit((unsigned char)*user) ||
+ (pwd = getpwuid((uid_t) atoi(user))) == NULL))
+ errx(EX_NOUSER, "user `%s' does not exist", user);
+
+ return (pwd);
+}
+
+
+/*
+ * Delete requested members from a group.
+ */
+static void
+delete_members(char ***members, int *grmembers, int *i, struct carg *arg,
+ struct group *grp)
+{
+ bool matchFound;
+ char *user;
+ char *valueCopy;
+ char *valuePtr;
+ int k;
+ struct passwd *pwd;
+
+ k = 0;
+ while (grp->gr_mem[k] != NULL) {
+ matchFound = false;
+ if ((valueCopy = strdup(arg->val)) == NULL)
+ errx(EX_UNAVAILABLE, "out of memory");
+ valuePtr = valueCopy;
+ while ((user = strsep(&valuePtr, ", \t")) != NULL) {
+ pwd = lookup_pwent(user);
+ if (strcmp(grp->gr_mem[k], pwd->pw_name) == 0) {
+ matchFound = true;
+ break;
+ }
+ }
+ free(valueCopy);
+
+ if (!matchFound &&
+ extendarray(members, grmembers, *i + 2) != -1)
+ (*members)[(*i)++] = grp->gr_mem[k];
+
+ k++;
+ }
+
+ return;
+}
+
+
static gid_t
gr_gidpolicy(struct userconf * cnf, struct cargs * args)
{
if (a_gid != NULL) {
gid = (gid_t) atol(a_gid->val);
- if ((grp = getgrgid(gid)) != NULL && getarg(args, 'o') == NULL)
- cmderr(EX_DATAERR, "gid `%ld' has already been allocated\n", (long) grp->gr_gid);
+ if ((grp = GETGRGID(gid)) != NULL && getarg(args, 'o') == NULL)
+ errx(EX_DATAERR, "gid `%ld' has already been allocated", (long) grp->gr_gid);
} else {
struct bitmap bm;
/*
* Now, let's fill the bitmap from the password file
*/
- setgrent();
- while ((grp = getgrent()) != NULL)
- if (grp->gr_gid >= (int) cnf->min_gid && grp->gr_gid <= (int) cnf->max_gid)
+ SETGRENT();
+ while ((grp = GETGRENT()) != NULL)
+ if ((gid_t)grp->gr_gid >= (gid_t)cnf->min_gid &&
+ (gid_t)grp->gr_gid <= (gid_t)cnf->max_gid)
bm_setbit(&bm, grp->gr_gid - cnf->min_gid);
- endgrent();
+ ENDGRENT();
/*
* Then apply the policy, with fallback to reuse if necessary
* Another sanity check
*/
if (gid < cnf->min_gid || gid > cnf->max_gid)
- cmderr(EX_SOFTWARE, "unable to allocate a new gid - range fully used\n");
+ errx(EX_SOFTWARE, "unable to allocate a new gid - range fully used");
bm_dealloc(&bm);
}
return gid;
print_group(struct group * grp, int pretty)
{
if (!pretty) {
- char buf[_UC_MAXLINE];
+ int buflen = 0;
+ char *buf = NULL;
- fmtgrent(buf, grp);
+ fmtgrent(&buf, &buflen, grp);
fputs(buf, stdout);
+ free(buf);
} else {
int i;
- printf("Group Name : %-10s #%lu\n"
- " Members : ",
+ printf("Group Name: %-15s #%lu\n"
+ " Members: ",
grp->gr_name, (long) grp->gr_gid);
- for (i = 0; i < _UC_MAXGROUPS && grp->gr_mem[i]; i++)
+ for (i = 0; grp->gr_mem[i]; i++)
printf("%s%s", i ? "," : "", grp->gr_mem[i]);
fputs("\n\n", stdout);
}
git.ckatri.com / pw-darwin.git / blobdiff