condition: don't include files from src/core

[elogind.git] / src / shared / strv.c

diff --git a/src/shared/strv.c b/src/shared/strv.c
index a5f8a2aff60e3ea36c82998c0f43e003717efbdb..e418312d52a6a9cb28a25994971591431f651f42 100644 (file)
--- a/src/shared/strv.c
+++ b/src/shared/strv.c
@@ -69,7 +69,7 @@ char *strv_find_startswith(char **l, const char *name) {
         return NULL;
 }
 
-void strv_free(char **l) {
+void strv_clear(char **l) {
         char **k;
 
         if (!l)
@@ -78,6 +78,11 @@ void strv_free(char **l) {
         for (k = l; *k; k++)
                 free(*k);
 
+        *l = NULL;
+}
+
+void strv_free(char **l) {
+        strv_clear(l);
         free(l);
 }
 
@@ -388,7 +393,7 @@ int strv_push(char ***l, char *value) {
 
         n = strv_length(*l);
 
-        /* increase and check for overflow */
+        /* Increase and check for overflow */
         m = n + 2;
         if (m < n)
                 return -ENOMEM;
@@ -404,6 +409,34 @@ int strv_push(char ***l, char *value) {
         return 0;
 }
 
+int strv_push_pair(char ***l, char *a, char *b) {
+        char **c;
+        unsigned n, m;
+
+        if (!a && !b)
+                return 0;
+
+        n = strv_length(*l);
+
+        /* increase and check for overflow */
+        m = n + !!a + !!b + 1;
+        if (m < n)
+                return -ENOMEM;
+
+        c = realloc_multiply(*l, sizeof(char*), m);
+        if (!c)
+                return -ENOMEM;
+
+        if (a)
+                c[n++] = a;
+        if (b)
+                c[n++] = b;
+        c[n] = NULL;
+
+        *l = c;
+        return 0;
+}
+
 int strv_push_prepend(char ***l, char *value) {
         char **c;
         unsigned n, m, i;
@@ -444,6 +477,18 @@ int strv_consume(char ***l, char *value) {
         return r;
 }
 
+int strv_consume_pair(char ***l, char *a, char *b) {
+        int r;
+
+        r = strv_push_pair(l, a, b);
+        if (r < 0) {
+                free(a);
+                free(b);
+        }
+
+        return r;
+}
+
 int strv_consume_prepend(char ***l, char *value) {
         int r;
 
@@ -479,6 +524,16 @@ char **strv_uniq(char **l) {
         return l;
 }
 
+bool strv_is_uniq(char **l) {
+        char **i;
+
+        STRV_FOREACH(i, l)
+                if (strv_find(i+1, *i))
+                        return false;
+
+        return true;
+}
+
 char **strv_remove(char **l, const char *s) {
         char **f, **t;
 
@@ -619,3 +674,21 @@ int strv_extendf(char ***l, const char *format, ...) {
 
         return strv_consume(l, x);
 }
+
+char **strv_reverse(char **l) {
+        unsigned n, i;
+
+        n = strv_length(l);
+        if (n <= 1)
+                return l;
+
+        for (i = 0; i < n / 2; i++) {
+                char *t;
+
+                t = l[i];
+                l[i] = l[n-1-i];
+                l[n-1-i] = t;
+        }
+
+        return l;
+}