extern int preserve_gid;
extern int preserve_acls;
extern int numeric_ids;
+extern gid_t our_gid;
extern char *usermap;
extern char *groupmap;
}
/* turn a uid into a user name */
-static const char *uid_to_name(uid_t uid)
+char *uid_to_user(uid_t uid)
{
struct passwd *pass = getpwuid(uid);
if (pass)
}
/* turn a gid into a group name */
-static const char *gid_to_name(gid_t gid)
+char *gid_to_group(gid_t gid)
{
struct group *grp = getgrgid(gid);
if (grp)
return NULL;
}
+/* Parse a user name or (optionally) a number into a uid */
+int user_to_uid(const char *name, uid_t *uid_p, BOOL num_ok)
+{
+ struct passwd *pass;
+ if (!name || !*name)
+ return 0;
+ if (num_ok && name[strspn(name, "0123456789")] == '\0') {
+ *uid_p = atol(name);
+ return 1;
+ }
+ if (!(pass = getpwnam(name)))
+ return 0;
+ *uid_p = pass->pw_uid;
+ return 1;
+}
+
+/* Parse a group name or (optionally) a number into a gid */
+int group_to_gid(const char *name, gid_t *gid_p, BOOL num_ok)
+{
+ struct group *grp;
+ if (!name || !*name)
+ return 0;
+ if (num_ok && name[strspn(name, "0123456789")] == '\0') {
+ *gid_p = atol(name);
+ return 1;
+ }
+ if (!(grp = getgrnam(name)))
+ return 0;
+ *gid_p = grp->gr_gid;
+ return 1;
+}
+
static int is_in_group(gid_t gid)
{
#ifdef HAVE_GETGROUPS
if (gid == last_in)
return last_out;
if (ngroups < -1) {
- gid_t mygid = MY_GID();
if ((ngroups = getgroups(0, NULL)) < 0)
ngroups = 0;
gidset = new_array(GETGROUPS_T, ngroups+1);
ngroups = getgroups(ngroups, gidset);
/* The default gid might not be in the list on some systems. */
for (n = 0; n < ngroups; n++) {
- if (gidset[n] == mygid)
+ if (gidset[n] == our_gid)
break;
}
if (n == ngroups)
- gidset[ngroups++] = mygid;
+ gidset[ngroups++] = our_gid;
if (DEBUG_GTE(OWN, 2)) {
int pos;
char *gidbuf = new_array(char, ngroups*21+32);
return last_out = 0;
#else
- static gid_t mygid = GID_NONE;
- if (mygid == GID_NONE) {
- mygid = MY_GID();
- if (DEBUG_GTE(OWN, 2))
- rprintf(FINFO, "process has gid %u\n", (unsigned)mygid);
- }
- return gid == mygid;
+ return gid == our_gid;
#endif
}
if (strcmp(node->name, name) != 0)
continue;
} else if (node->name) {
- if (id < node->id || id > (unsigned long)node->name)
+ if (id < node->id || (unsigned long)id > (unsigned long)node->name)
continue;
} else {
if (node->id != id)
if (node)
id2 = node->id2;
else if (*name && id) {
- if (idmap == uidmap) {
+ if (idlist_ptr == &uidlist) {
uid_t uid;
- id2 = name_to_uid(name, &uid) ? uid : id;
+ id2 = user_to_uid(name, &uid, False) ? uid : id;
} else {
gid_t gid;
- id2 = name_to_gid(name, &gid) ? gid : id;
+ id2 = group_to_gid(name, &gid, False) ? gid : id;
}
} else
id2 = id;
- flag = idmap == gidmap && !am_root && !is_in_group(id2) ? FLAG_SKIP_GROUP : 0;
+ flag = idlist_ptr == &gidlist && !am_root && !is_in_group(id2) ? FLAG_SKIP_GROUP : 0;
node = add_to_list(idlist_ptr, id, *name ? name : NULL, id2, flag);
if (DEBUG_GTE(OWN, 2)) {
rprintf(FINFO, "%sid %u(%s) maps to %u\n",
- idmap == uidmap ? "u" : "g",
+ idlist_ptr == &uidlist ? "u" : "g",
(unsigned)id, name, (unsigned)id2);
}
return NULL;
}
- node = add_to_list(&uidlist, uid, uid_to_name(uid), 0, 0);
+ node = add_to_list(&uidlist, uid, uid_to_user(uid), 0, 0);
return node->name;
}
return NULL;
}
- node = add_to_list(&gidlist, gid, gid_to_name(gid), 0, 0);
+ node = add_to_list(&gidlist, gid, gid_to_group(gid), 0, 0);
return node->name;
}
char *dash = strchr(cp, '-');
if (strspn(cp, "0123456789-") != (size_t)(colon - cp)
|| (dash && (!dash[1] || strchr(dash+1, '-')))) {
- bad_number:
rprintf(FERROR, "Invalid number in --%smap: %s\n",
usernames ? "user" : "group", cp);
exit_cleanup(RERR_SYNTAX);
id1 = 0;
}
- if (isDigit(colon+1)) {
- if (strspn(colon+1, "0123456789") != (size_t)(end - colon - 1)) {
- cp = colon+1;
- goto bad_number;
- }
- add_to_list(idmap_ptr, id1, name, atol(colon+1), flags);
- } else if (usernames) {
+ if (usernames) {
uid_t uid;
- if (name_to_uid(colon+1, &uid))
+ if (user_to_uid(colon+1, &uid, True))
add_to_list(idmap_ptr, id1, name, uid, flags);
else {
rprintf(FERROR,
}
} else {
gid_t gid;
- if (name_to_gid(colon+1, &gid))
+ if (group_to_gid(colon+1, &gid, True))
add_to_list(idmap_ptr, id1, name, gid, flags);
else {
rprintf(FERROR,
/* The 0 user/group doesn't get its name sent, so add it explicitly. */
recv_add_id(idlist_ptr, *idmap_ptr, 0,
- numeric_ids ? NULL : usernames ? uid_to_name(0) : gid_to_name(0));
+ numeric_ids ? NULL : usernames ? uid_to_user(0) : gid_to_group(0));
}
+
+#ifdef HAVE_GETGROUPLIST
+const char *getallgroups(uid_t uid, gid_t *gid_list, int *size_ptr)
+{
+ struct passwd *pw;
+ if ((pw = getpwuid(uid)) == NULL)
+ return "getpwuid failed";
+ /* Get all the process's groups, with the pw_gid group first. */
+ if (getgrouplist(pw->pw_name, pw->pw_gid, gid_list, size_ptr) < 0)
+ return "getgrouplist failed";
+ /* Paranoia: is the default group not first in the list? */
+ if (gid_list[0] != pw->pw_gid) {
+ int j;
+ for (j = 0; j < *size_ptr; j++) {
+ if (gid_list[j] == pw->pw_gid) {
+ gid_list[j] = gid_list[0];
+ gid_list[0] = pw->pw_gid;
+ break;
+ }
+ }
+ }
+ return NULL;
+}
+#endif
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