move string operations from ramfs.c to strings.c

1 files changed, 27 insertions, 9 deletions

diff --git a/src/arm/common/strings.c b/src/arm/common/strings.c
index 368d7dc..0c7a73b 100644
--- a/src/arm/common/strings.c
+++ b/src/arm/common/strings.c
@@ -69,15 +69,6 @@ void uint32_to_hexstringt(uint32_t number, char buf[9])
   trim_0s(buf);
 }
 
-size_t strlen(char string[])
-{
-  size_t len;
-
-  for (len = 0; string[len]; len++);
-
-  return len;
-}
-
 void memcpy(void *dst, void *src, size_t nbytes)
 {
   size_t iter;
@@ -117,3 +108,30 @@ char *strcat(char *dst, const char *src)
 
   return dst;
 }
+
+int strcmp(char const *str1, char const *str2)
+{
+  while (1)
+    {
+      int c1 = (unsigned char) *str1, c2 = (unsigned char) *str2;
+      
+      if (!c1 && !c2)
+	return 0;
+
+      if (c1 != c2)
+	return c1 - c2;
+
+      str1++; str2++;
+    }
+}
+
+size_t strlen(char const *str1)
+{
+  size_t len = 0;
+
+  while (str1[len])
+    len++;
+
+  return len;
+}
+