From e5077ed02c7e617583fe381db77de6e0faac1af6 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 10 Oct 2021 15:43:36 +0000
Subject: init/stdlib: implement strcmp

---
 src/init/stdlib.c | 11 +++++++++++
 src/init/stdlib.h |  1 +
 2 files changed, 12 insertions(+)

(limited to 'src')

diff --git a/src/init/stdlib.c b/src/init/stdlib.c
index 4bc90d2..3714324 100644
--- a/src/init/stdlib.c
+++ b/src/init/stdlib.c
@@ -13,6 +13,17 @@ int memcmp(const void *s1, const void *s2, size_t n) {
 	return 0;
 }
 
+int strcmp(const char *s1, const char *s2) {
+	while (*s1) {
+		if (*s1 != *s2) {
+			if (*s1 < *s2)  return -1;
+			else            return 1;
+		}
+		s1++; s2++;
+	}
+	return 0;
+}
+
 size_t strlen(const char *s) {
 	size_t c = 0;
 	while (*s++) c++;
diff --git a/src/init/stdlib.h b/src/init/stdlib.h
index 3e56beb..a3a8b64 100644
--- a/src/init/stdlib.h
+++ b/src/init/stdlib.h
@@ -6,6 +6,7 @@
 
 int memcmp(const void *s1, const void *s2, size_t n);
 
+int strcmp(const char *s1, const char *s2);
 size_t strlen(const char *s);
 
 int printf(const char *fmt, ...);
-- 
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