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-rw-r--r--src/lib/strings.c20
-rw-r--r--src/lib/strings.h7
2 files changed, 27 insertions, 0 deletions
diff --git a/src/lib/strings.c b/src/lib/strings.c
new file mode 100644
index 0000000..8f62391
--- /dev/null
+++ b/src/lib/strings.c
@@ -0,0 +1,20 @@
+#include "../lib/strings.h"
+
+unsigned long strlen(char* s) {
+ unsigned long len = 0;
+ while (s[len] != 0) {
+ len += 1;
+ }
+ return len;
+}
+
+unsigned char strcmp(char* a, char* b) {
+ unsigned long idx = 0;
+ while (a[idx] != 0 && b[idx] != 0) {
+ if (a[idx] != b[idx]) {
+ return 0;
+ }
+ idx += 1;
+ }
+ return a[idx] == b[idx];
+}
diff --git a/src/lib/strings.h b/src/lib/strings.h
new file mode 100644
index 0000000..61dd316
--- /dev/null
+++ b/src/lib/strings.h
@@ -0,0 +1,7 @@
+#ifndef LIB_STRINGS_H
+#define LIB_STRINGS_H
+
+unsigned long strlen(char* s);
+unsigned char strcmp(char* a, char* b);
+
+#endif