2 files changed, 13 insertions, 0 deletions

diff --git a/libc/inc/mem.h b/libc/inc/mem.h
index 8977a48..964b24b 100644
--- a/libc/inc/mem.h
+++ b/libc/inc/mem.h
@@ -22,6 +22,7 @@ void free(void *ptr);
 
 void *memcpy(void *dest, const void *src, u32 n);
 void *memset(void *dest, int val, u32 n);
+void *memchr(void *src, int c, u32 n);
 int memcmp(const void *s1, const void *s2, u32 n);
 
 #endif
diff --git a/libc/mem.c b/libc/mem.c
index 2fde00b..c81a13f 100644
--- a/libc/mem.c
+++ b/libc/mem.c
@@ -43,6 +43,18 @@ void *memset(void *dest, int val, u32 n)
 	return dest;
 }
 
+void *memchr(void *src, int c, u32 n)
+{
+	const u8 *s = (const u8 *)src;
+
+	while (n-- > 0) {
+		if (*s == c)
+			return (void *)s;
+		s++;
+	}
+	return NULL;
+}
+
 int memcmp(const void *s1, const void *s2, u32 n)
 {
 	const u8 *a = (const u8 *)s1;