Added *very* simple ide and ext2 support

2 files changed, 17 insertions, 0 deletions

diff --git a/src/lib/inc/str.h b/src/lib/inc/str.h
index 0e00e75..f4c63b1 100644
--- a/src/lib/inc/str.h
+++ b/src/lib/inc/str.h
@@ -10,6 +10,7 @@ char *strcpy(char *dst, const char *src);
 char *strchr(const char *s, int c);
 char *strcat(char *dst, const char *src);
 int strcmp(const char *s1, const char *s2);
+int strncmp(const char *s1, const char *s2, u32 n);
 char *strinv(char *s);
 char *strdup(const char *s);
 
diff --git a/src/lib/str.c b/src/lib/str.c
index 24f95e5..d1ee325 100644
--- a/src/lib/str.c
+++ b/src/lib/str.c
@@ -40,6 +40,22 @@ int strcmp(const char *s1, const char *s2)
 	return d;
 }
 
+int strncmp(const char *s1, const char *s2, u32 n)
+{
+	const u8 *c1 = (const u8 *)s1;
+	const u8 *c2 = (const u8 *)s2;
+	u8 ch;
+	int d = 0;
+
+	while (n--) {
+		d = (int)(ch = *c1++) - (int)*c2++;
+		if (d || !ch)
+			break;
+	}
+
+	return d;
+}
+
 char *strchr(const char *s, int c)
 {
 	while (*s != (char)c) {