X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=sidebyside;f=src%2Fshared%2Futil.c;h=e2c955bc0700594620a7c517d2a368c7593f296e;hb=5cb36f41f01cf4b1f4395abfffd1b33116591e58;hp=76cee19261e67a8c8aaca35107374fa366f1c7e6;hpb=b2fadec6048adb3596f2633cb7fe7a49f5937a18;p=elogind.git

diff --git a/src/shared/util.c b/src/shared/util.c
index 76cee1926..e2c955bc0 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -140,26 +140,38 @@ char* endswith(const char *s, const char *postfix) {
         return (char*) s + sl - pl;
 }
 
-bool first_word(const char *s, const char *word) {
+char* first_word(const char *s, const char *word) {
         size_t sl, wl;
+        const char *p;
 
         assert(s);
         assert(word);
 
+        /* Checks if the string starts with the specified word, either
+         * followed by NUL or by whitespace. Returns a pointer to the
+         * NUL or the first character after the whitespace. */
+
         sl = strlen(s);
         wl = strlen(word);
 
         if (sl < wl)
-                return false;
+                return NULL;
 
         if (wl == 0)
-                return true;
+                return (char*) s;
 
         if (memcmp(s, word, wl) != 0)
-                return false;
+                return NULL;
+
+        p = s + wl;
+        if (*p == 0)
+                return (char*) p;
+
+        if (!strchr(WHITESPACE, *p))
+                return NULL;
 
-        return s[wl] == 0 ||
-                strchr(WHITESPACE, s[wl]);
+        p += strspn(p, WHITESPACE);
+        return (char*) p;
 }
 
 int close_nointr(int fd) {
@@ -1230,7 +1242,7 @@ char *cunescape_length_with_prefix(const char *s, size_t length, const char *pre
 
         r = new(char, pl+length+1);
         if (!r)
-                return r;
+                return NULL;
 
         if (prefix)
                 memcpy(r, prefix, pl);