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-rw-r--r--src/shared/strv.c31
-rw-r--r--src/shared/strv.h1
-rw-r--r--src/shared/util.c36
-rw-r--r--src/shared/util.h2
4 files changed, 54 insertions, 16 deletions
diff --git a/src/shared/strv.c b/src/shared/strv.c
index 7bcfabbf1a..e57e0ee7bf 100644
--- a/src/shared/strv.c
+++ b/src/shared/strv.c
@@ -387,32 +387,43 @@ fail:
return NULL;
}
-int strv_extend(char ***l, const char *value) {
+int strv_push(char ***l, char *value) {
char **c;
- char *v;
unsigned n;
if (!value)
return 0;
- v = strdup(value);
- if (!v)
- return -ENOMEM;
-
n = strv_length(*l);
c = realloc(*l, sizeof(char*) * (n + 2));
- if (!c) {
- free(v);
+ if (!c)
return -ENOMEM;
- }
- c[n] = v;
+ c[n] = value;
c[n+1] = NULL;
*l = c;
return 0;
}
+int strv_extend(char ***l, const char *value) {
+ char *v;
+ int r;
+
+ if (!value)
+ return 0;
+
+ v = strdup(value);
+ if (!v)
+ return -ENOMEM;
+
+ r = strv_push(l, v);
+ if (r < 0)
+ free(v);
+
+ return r;
+}
+
char **strv_uniq(char **l) {
char **i;
diff --git a/src/shared/strv.h b/src/shared/strv.h
index 49058f8df8..910d15337f 100644
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@@ -41,6 +41,7 @@ char **strv_merge(char **a, char **b);
char **strv_merge_concat(char **a, char **b, const char *suffix);
char **strv_append(char **l, const char *s);
int strv_extend(char ***l, const char *value);
+int strv_push(char ***l, char *value);
char **strv_remove(char **l, const char *s);
char **strv_remove_prefix(char **l, const char *s);
diff --git a/src/shared/util.c b/src/shared/util.c
index 872f6f7371..020b75d0f2 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -4190,6 +4190,23 @@ char* uid_to_name(uid_t uid) {
return r;
}
+char* gid_to_name(gid_t gid) {
+ struct group *p;
+ char *r;
+
+ if (gid == 0)
+ return strdup("root");
+
+ p = getgrgid(gid);
+ if (p)
+ return strdup(p->gr_name);
+
+ if (asprintf(&r, "%lu", (unsigned long) gid) < 0)
+ return NULL;
+
+ return r;
+}
+
int get_group_creds(const char **groupname, gid_t *gid) {
struct group *g;
gid_t id;
@@ -4228,14 +4245,10 @@ int get_group_creds(const char **groupname, gid_t *gid) {
return 0;
}
-int in_group(const char *name) {
- gid_t gid, *gids;
+int in_gid(gid_t gid) {
+ gid_t *gids;
int ngroups_max, r, i;
- r = get_group_creds(&name, &gid);
- if (r < 0)
- return r;
-
if (getgid() == gid)
return 1;
@@ -4258,6 +4271,17 @@ int in_group(const char *name) {
return 0;
}
+int in_group(const char *name) {
+ int r;
+ gid_t gid;
+
+ r = get_group_creds(&name, &gid);
+ if (r < 0)
+ return r;
+
+ return in_gid(gid);
+}
+
int glob_exists(const char *path) {
glob_t g;
int r, k;
diff --git a/src/shared/util.h b/src/shared/util.h
index f75c66bb83..7a38421007 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -429,9 +429,11 @@ int socket_from_display(const char *display, char **path);
int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell);
int get_group_creds(const char **groupname, gid_t *gid);
+int in_gid(gid_t gid);
int in_group(const char *name);
char* uid_to_name(uid_t uid);
+char* gid_to_name(gid_t gid);
int glob_exists(const char *path);