#include <ctype.h>
#include <err.h>
#include <termios.h>
+#include <stdbool.h>
#include <unistd.h>
+#include <grp.h>
+#include <libutil.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);
pw_group(struct userconf * cnf, int mode, struct cargs * args)
{
int rc;
+ struct carg *a_newname = getarg(args, 'l');
struct carg *a_name = getarg(args, 'n');
struct carg *a_gid = getarg(args, 'g');
struct carg *arg;
NULL
};
+ if (a_gid != NULL) {
+ if (strspn(a_gid->val, "0123456789") != strlen(a_gid->val))
+ errx(EX_USAGE, "-g expects a number");
+ }
+
if (mode == M_LOCK || mode == M_UNLOCK)
errx(EX_USAGE, "'lock' command is not available for groups");
if (a_gid)
grp->gr_gid = (gid_t) atoi(a_gid->val);
- if ((arg = getarg(args, 'l')) != NULL)
- grp->gr_name = pw_checkname((u_char *)arg->val, 0);
+ if (a_newname != NULL)
+ grp->gr_name = pw_checkname((u_char *)a_newname->val, 0);
} else {
if (a_name == NULL) /* Required */
errx(EX_DATAERR, "group name required");
}
}
- 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;
/* Make sure this is not stay NULL with -M "" */
extendarray(&members, &grmembers, 200);
- if (arg->ch == 'm') {
+ 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++;
+ if (grp->gr_mem != NULL) {
+ 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"); p != NULL; p = strtok(NULL, ", \t")) {
- int j;
- if ((pwd = GETPWNAM(p)) == NULL) {
- if (!isdigit((unsigned char)*p) || (pwd = getpwuid((uid_t) atoi(p))) == NULL)
- errx(EX_NOUSER, "user `%s' does not exist", 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 && extendarray(&members, &grmembers, i + 2) != -1)
- members[i++] = newstr(pwd->pw_name);
- }
while (i < grmembers)
members[i++] = NULL;
grp->gr_mem = members;
warn("group update");
return EX_IOERR;
}
+
+ arg = a_newname != NULL ? a_newname : a_name;
/* grp may have been invalidated */
- if ((grp = GETGRNAM(a_name->val)) == NULL)
+ if ((grp = GETGRNAM(arg->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);
+ 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;
+
+ if (grp->gr_mem == NULL)
+ return;
+
+ 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)
{
print_group(struct group * grp, int pretty)
{
if (!pretty) {
- int buflen = 0;
char *buf = NULL;
- fmtgrent(&buf, &buflen, grp);
- fputs(buf, stdout);
+ buf = gr_make(grp);
+ printf("%s\n", buf);
free(buf);
} else {
int i;
printf("Group Name: %-15s #%lu\n"
" Members: ",
grp->gr_name, (long) grp->gr_gid);
- for (i = 0; grp->gr_mem[i]; i++)
- printf("%s%s", i ? "," : "", grp->gr_mem[i]);
+ if (grp->gr_mem != NULL) {
+ for (i = 0; grp->gr_mem[i]; i++)
+ printf("%s%s", i ? "," : "", grp->gr_mem[i]);
+ }
fputs("\n\n", stdout);
}
return EXIT_SUCCESS;
git.ckatri.com / pw-darwin.git / blobdiff