X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Fstrv.c;h=b4c476eff27df9858698ad4f52e66210b6696bb7;hp=1ef0b26a25b0d6eb091507e7c0281e53be484398;hb=9a00f57a5ba7ed431e6bac8d8b36518708503b4e;hpb=cd4ba18a849dc82735b3787cf99bd3fdc404d5ae;ds=sidebyside

diff --git a/src/shared/strv.c b/src/shared/strv.c
index 1ef0b26a2..b4c476eff 100644
--- a/src/shared/strv.c
+++ b/src/shared/strv.c
@@ -378,6 +378,30 @@ int strv_push(char ***l, char *value) {
         return 0;
 }
 
+int strv_push_prepend(char ***l, char *value) {
+        char **c;
+        unsigned n, i;
+
+        if (!value)
+                return 0;
+
+        n = strv_length(*l);
+        c = new(char*, n + 2);
+        if (!c)
+                return -ENOMEM;
+
+        for (i = 0; i < n; i++)
+                c[i+1] = (*l)[i];
+
+        c[0] = value;
+        c[n+1] = NULL;
+
+        free(*l);
+        *l = c;
+
+        return 0;
+}
+
 int strv_consume(char ***l, char *value) {
         int r;
 
@@ -388,6 +412,16 @@ int strv_consume(char ***l, char *value) {
         return r;
 }
 
+int strv_consume_prepend(char ***l, char *value) {
+        int r;
+
+        r = strv_push_prepend(l, value);
+        if (r < 0)
+                free(value);
+
+        return r;
+}
+
 int strv_extend(char ***l, const char *value) {
         char *v;