More work on manager

1 files changed, 40 insertions, 0 deletions

diff --git a/src/library/std/string.c b/src/library/std/string.c
index 869256a..4c374ad 100644
--- a/src/library/std/string.c
+++ b/src/library/std/string.c
@@ -6,6 +6,46 @@ int strlen(const char *str) {
 	return i;
 }
 
+char *strchr(const char *str, char c) {
+	while (*str) {
+		if (*str == c) return (char*)str;
+		str++;
+	}
+	return NULL;
+}
+
+char *strcpy(char *dest, const char *src) {
+	memcpy(dest, src, strlen(src) + 1);
+	return (char*)src;
+}
+
+char *strdup(const char *src) {
+	char* ret = malloc(strlen(src) + 1);
+	if (ret == NULL) return ret;
+	strcpy(ret, src);
+	return ret;
+}
+
+char *strcat(char *dest, const char *src) {
+	char *dest2 = dest;
+	dest2 += strlen(dest) - 1;
+	while (*src) {
+		*dest2 = *src;
+		src++;
+		dest2++;
+	}
+	*dest2 = 0;
+	return dest;
+}
+
+int strcmp(const char *s1, const char *s2) {
+	while ((*s1) && (*s1 == *s2)) {
+		s1++;
+		s2++;
+	}
+	return (* (unsigned char*)s1 - *(unsigned char*)s2);
+}
+
 void *memcpy(void *vd, const void *vs, int count) {
 	uint8_t *dest = (uint8_t*)vd, *src = (uint8_t*)vs;
 	uint32_t f = count % 4, n = count / 4, i;