libc: get most of binutils to compile

1 files changed, 12 insertions, 1 deletions

diff --git a/src/libc/string/string.c b/src/libc/string/string.c
index c65d7c5..ac1c757 100644
--- a/src/libc/string/string.c
+++ b/src/libc/string/string.c
@@ -1,3 +1,4 @@
+#include <bits/panic.h>
 #include <ctype.h>
 #include <errno.h>
 #include <stdlib.h>
@@ -79,10 +80,15 @@ char *strstr(const char *s1, const char *s2) {
 	return NULL;
 }
 
+char *strcat(char *restrict dst, const char *restrict src) {
+	return strcpy(dst + strlen(dst), src);
+}
+
 char *strcpy(char *restrict s1, const char *restrict s2) {
+	char *ret = s1;
 	while (*s2) *s1++ = *s2++;
 	*s1 = *s2;
-	return s1;
+	return ret;
 }
 
 char *strncpy(char *restrict dst, const char *restrict src, size_t n) {
@@ -93,6 +99,11 @@ char *strncpy(char *restrict dst, const char *restrict src, size_t n) {
 	return dst;
 }
 
+char *strncat(char *restrict dst, const char *restrict src, size_t n) {
+	(void)dst; (void)src; (void)n;
+	__libc_panic("unimplemented");
+}
+
 char *stpncpy(char *restrict dst, const char *restrict src, size_t n) {
 	return stpncpy(dst, src, n) + n;
 }