ADD: Early SPIFFS implementation see #257, UPDATE HF_COLIN accordingly

armsrc/string.c

@@ -106,3 +106,101 @@ void itoa(int n, char s[]) {
 }
 
 //////////////////////////////////////// END 'itoa' CODE
+
+
+
+char *strcpy(char *dst, const char *src)
+    {
+      char *save = dst;
+
+      for (; (*dst = *src) != '\0'; ++src, ++dst);
+      return save;
+    }
+
+char *strncpy(char *dst, const char *src, size_t n)
+ {
+     if (n != 0) {
+         char *d = dst;
+         const char *s = src;
+
+         do {
+             if ((*d++ = *s++) == 0) {
+                 /* NUL pad the remaining n-1 bytes */
+                 while (--n) {
+                    *d++ = 0;
+                 }
+                 break;
+             }
+         } while (--n);
+    }
+     return dst;
+ }
+
+int strcmp(const char *s1, const char *s2)
+{
+    while (*s1 == *s2++) {
+        if (*s1++ == 0) {
+            return (0);
+        }
+    }
+    return (*(unsigned char *) s1 - *(unsigned char *) --s2);
+}
+
+char* __strtok_r(char*, const char*, char**);
+
+char* __strtok_r(char* s, const char* delim, char** last)
+{
+	char *spanp, *tok;
+	int c, sc;
+
+	if(s == NULL && (s = *last) == NULL)
+		return (NULL);
+
+/*
+ * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
+ */
+cont:
+	c = *s++;
+	for(spanp = (char*)delim; (sc = *spanp++) != 0;)
+	{
+		if(c == sc)
+			goto cont;
+	}
+
+	if(c == 0)
+	{ /* no non-delimiter characters */
+		*last = NULL;
+		return (NULL);
+	}
+	tok = s - 1;
+
+	/*
+	 * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
+	 * Note that delim must have one NUL; we stop if we see that, too.
+	 */
+	for(;;)
+	{
+		c = *s++;
+		spanp = (char*)delim;
+		do
+		{
+			if((sc = *spanp++) == c)
+			{
+				if(c == 0)
+					s = NULL;
+				else
+					s[-1] = '\0';
+				*last = s;
+				return (tok);
+			}
+		} while(sc != 0);
+	}
+	/* NOTREACHED */
+}
+
+char* strtok(char* s, const char* delim)
+{
+	static char* last;
+
+	return (__strtok_r(s, delim, &last));
+}