Replace rawmemchr (s, '\0') with strchr

Almost all uses of rawmemchr find the end of a string.  Since most targets use
a generic implementation, replacing it with strchr is better since that is
optimized by compilers into strlen (s) + s.  Also fix the generic rawmemchr
implementation to use a cast to unsigned char in the if statement.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

4 files changed, 9 insertions, 9 deletions

diff --git a/nscd/connections.c b/nscd/connections.c
index b5fbb1a..b1231a9 100644
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -1359,7 +1359,7 @@ cannot open /proc/self/cmdline: %m; disabling paranoia mode"));
   for (char *cp = cmdline; cp < cmdline + readlen;)
     {
       argv[argc++] = cp;
-      cp = (char *) rawmemchr (cp, '\0') + 1;
+      cp = strchr (cp, '\0') + 1;
     }
   argv[argc] = NULL;
 
diff --git a/nscd/grpcache.c b/nscd/grpcache.c
index eb20c4f..cdd1071 100644
--- a/nscd/grpcache.c
+++ b/nscd/grpcache.c
@@ -259,7 +259,7 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req,
       /* Finally the stringified GID value.  */
       memcpy (cp, buf, n);
       char *key_copy = cp + key_offset;
-      assert (key_copy == (char *) rawmemchr (cp, '\0') + 1);
+      assert (key_copy == strchr (cp, '\0') + 1);
 
       assert (cp == dataset->strdata + total - offsetof (struct dataset,
 							 strdata));
diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
index 439dd4b..06b7d7b 100644
--- a/nscd/netgroupcache.c
+++ b/nscd/netgroupcache.c
@@ -453,14 +453,14 @@ addinnetgrX (struct database_dyn *db, int fd, request_header *req,
 	     struct datahead *dh)
 {
   const char *group = key;
-  key = (char *) rawmemchr (key, '\0') + 1;
+  key = strchr (key, '\0') + 1;
   size_t group_len = key - group;
   const char *host = *key++ ? key : NULL;
   if (host != NULL)
-    key = (char *) rawmemchr (key, '\0') + 1;
+    key = strchr (key, '\0') + 1;
   const char *user = *key++ ? key : NULL;
   if (user != NULL)
-    key = (char *) rawmemchr (key, '\0') + 1;
+    key = strchr (key, '\0') + 1;
   const char *domain = *key++ ? key : NULL;
 
   if (__glibc_unlikely (debug_level > 0))
@@ -538,11 +538,11 @@ addinnetgrX (struct database_dyn *db, int fd, request_header *req,
 	     match anything is stored in the netgroup cache.  */
 	  if (host != NULL && *triplets != '\0')
 	    success = strcmp (host, triplets) == 0;
-	  triplets = (const char *) rawmemchr (triplets, '\0') + 1;
+	  triplets = strchr (triplets, '\0') + 1;
 
 	  if (success && user != NULL && *triplets != '\0')
 	    success = strcmp (user, triplets) == 0;
-	  triplets = (const char *) rawmemchr (triplets, '\0') + 1;
+	  triplets = strchr (triplets, '\0') + 1;
 
 	  if (success && (domain == NULL || *triplets == '\0'
 			  || strcmp (domain, triplets) == 0))
@@ -550,7 +550,7 @@ addinnetgrX (struct database_dyn *db, int fd, request_header *req,
 	      dataset->resp.result = 1;
 	      break;
 	    }
-	  triplets = (const char *) rawmemchr (triplets, '\0') + 1;
+	  triplets = strchr (triplets, '\0') + 1;
 	}
     }
 
diff --git a/nscd/pwdcache.c b/nscd/pwdcache.c
index f546bb3..e1b579d 100644
--- a/nscd/pwdcache.c
+++ b/nscd/pwdcache.c
@@ -243,7 +243,7 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req,
       /* Finally the stringified UID value.  */
       memcpy (cp, buf, n);
       char *key_copy = cp + key_offset;
-      assert (key_copy == (char *) rawmemchr (cp, '\0') + 1);
+      assert (key_copy == strchr (cp, '\0') + 1);
 
       assert (cp == dataset->strdata + total - offsetof (struct dataset,
 							 strdata));