1 files changed, 126 insertions, 0 deletions
diff --git a/arclib/string.c b/arclib/string.c
new file mode 100644
index 0000000..6ff3cfb
--- /dev/null
+++ b/arclib/string.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright 1999, 2001 Silicon Graphics, Inc.
+ * Copyright 2001 Ralf Baechle
+ *           2001 Guido Guenther <agx@sgixcpu.org>
+ */
+#include "string.h"
+
+#include "stdlib.h"
+
+size_t strlen(const char *s)
+{
+	size_t len = 0;
+
+	while (*(s++) != '\0')
+		len += 1;
+
+	return len;
+}
+
+
+int strncmp(const char *s1, const char *s2, size_t n)
+{
+	while (n-- > 0) {
+		if (*s1 < *s2)
+			return -1;
+		else if (*s1 > *s2)
+			return 1;
+		else if (*s1 == '\0')
+			return 0;
+		s1 += 1;
+		s2 += 1;
+	}
+
+	return 0;
+}
+
+/* from lib/string.c in the kernel sources */
+int strcmp(const char * cs,const char * ct)
+{
+	register signed char __res;
+
+	while (1) {
+		if ((__res = *cs - *ct++) != 0 || !*cs++)
+			break;
+	}
+
+	return __res;
+}
+
+char *strchr(const char *s, int c)
+{
+	while ((*s != (char) c) && (*s != '\0'))
+		s += 1;
+	return (char *) ((*s == '\0') ? NULL : s);
+}
+
+
+char *strcpy(char *s1, const char *s2)
+{
+	char *s = s1;
+
+	do {
+		*(s1++) = *(s2);
+	} while(*s2++ != 0x0);
+
+	return s;
+}
+
+
+char *strncpy(char *s1, const char *s2, size_t n)
+{
+	char *s = s1;
+
+	while (n-- > 0) {
+		if ((*(s1++) = *(s2++)) == '\0')
+			break;
+	}
+
+	return s;
+}
+
+
+char *strdup(const char *s1)
+{
+	char *str = malloc(strlen(s1) + 1);
+
+	if (str != NULL)
+		strcpy(str, s1);
+	return str;
+}
+
+int memcmp(const void * cs,const void * ct,size_t count)
+{
+	const unsigned char *su1, *su2;
+	signed char res = 0;
+
+	for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
+		if ((res = *su1 - *su2) != 0)
+			break;
+	return res;
+}
+
+void *memcpy(void *s1, const void *s2, size_t n)
+{
+	char *c1 = (char *) s1;
+	const char *c2 = (const char *) s2;
+
+	while (n-- > 0)
+		*(c1++) = *(c2++);
+	return s1;
+}
+
+
+void *memset(void *s, int c, size_t n)
+{
+	char *mem = (char *) s;
+
+	while (n-- > 0)
+		*(mem++) = (char) c;
+	return s;
+}
+
+void __bzero(char *p, int len)
+{
+	memset(p, 0, len);
+}