X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=lib%2Fstring.c;h=a485d75962af5f7a6bbb4f819aa780c812fe25ca;hb=9ac7849e35f705830f7b016ff272b0ff1f7ff759;hp=064f6315b1c3e16c731117a7e1aa185a5b2bd405;hpb=6fbe85f914ad08cc43408a40ad18a561222e1b93;p=powerpc.git

diff --git a/lib/string.c b/lib/string.c
index 064f6315b1..a485d75962 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -301,6 +301,36 @@ char *strnchr(const char *s, size_t count, int c)
 EXPORT_SYMBOL(strnchr);
 #endif
 
+/**
+ * strstrip - Removes leading and trailing whitespace from @s.
+ * @s: The string to be stripped.
+ *
+ * Note that the first trailing whitespace is replaced with a %NUL-terminator
+ * in the given string @s. Returns a pointer to the first non-whitespace
+ * character in @s.
+ */
+char *strstrip(char *s)
+{
+	size_t size;
+	char *end;
+
+	size = strlen(s);
+
+	if (!size)
+		return s;
+
+	end = s + size - 1;
+	while (end >= s && isspace(*end))
+		end--;
+	*(end + 1) = '\0';
+
+	while (*s && isspace(*s))
+		s++;
+
+	return s;
+}
+EXPORT_SYMBOL(strstrip);
+
 #ifndef __HAVE_ARCH_STRLEN
 /**
  * strlen - Find the length of a string