1 files changed, 106 insertions, 0 deletions
diff --git a/app/bin/stringxtc.c b/app/bin/stringxtc.c
new file mode 100644
index 0000000..483f1a6
--- /dev/null
+++ b/app/bin/stringxtc.c
@@ -0,0 +1,106 @@
+/** \file stringxtc.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+ /*
+  * stupid library routines.
+  */
+
+#include <ctype.h>
+#include <stddef.h>  
+#include <errno.h>
+#include "include/stringxtc.h"
+
+/**
+ * strscpy - Copy a C-string into a sized buffer
+ * @dest: Where to copy the string to
+ * @src: Where to copy the string from
+ * @count: Size of destination buffer
+ *
+ * Copy the string, or as much of it as fits, into the dest buffer.  The
+ * behavior is undefined if the string buffers overlap.  The destination
+ * buffer is always NUL terminated, unless it's zero-sized.
+ *
+ * Preferred to strlcpy() since the API doesn't require reading memory
+ * from the src string beyond the specified "count" bytes, and since
+ * the return value is easier to error-check than strlcpy()'s.
+ * In addition, the implementation is robust to the string changing out
+ * from underneath it, unlike the current strlcpy() implementation.
+ *
+ * Preferred to strncpy() since it always returns a valid string, and
+ * doesn't unnecessarily force the tail of the destination buffer to be
+ * zeroed.  If zeroing is desired please use strscpy_pad().
+ *
+ * Return: The number of characters copied (not including the trailing
+ *         %NUL) or -E2BIG if the destination buffer wasn't big enough.
+ */
+ 
+size_t strscpy(char *dest, const char *src, size_t count)
+{
+	long res = 0;
+
+	if (count == 0)
+		return -E2BIG;
+
+	while (count) {
+		char c;
+
+		c = src[res];
+		dest[res] = c;
+		if (!c)
+			return res;
+		res++;
+		count--;
+	}
+
+	/* Hit buffer length without finding a NUL; force NUL-termination. */
+	if (res)
+		dest[res - 1] = '\0';
+
+	return -E2BIG;
+}
+
+/**
+ * Convert a string to lower case
+ * Taken from https://stackoverflow.com/questions/23618316/undefined-reference-to-strlwr
+ * 
+ * \param str IN string to convert
+ * \return pointer to converted string
+ */
+
+char *
+XtcStrlwr(char *str)
+{
+	unsigned char *p = (unsigned char *)str;
+
+	while (*p) {
+		*p = tolower((unsigned char)*p);
+		p++;
+	}
+
+	return str;
+}
+
+/**
+ * Compare two strings case insensitive
+ * Taken from https://stackoverflow.com/questions/30733786/c99-remove-stricmp-and-strnicmp
+ * 
+ * \param a, b IN strings to compare
+  * \return 
+ */
+ 
+int
+XtcStricmp(const char *a, const char *b)
+{
+    int ca, cb;
+    do {
+        ca = (unsigned char) *a++;
+        cb = (unsigned char) *b++;
+        ca = tolower(toupper(ca));
+        cb = tolower(toupper(cb));
+    } while ((ca == cb) && (ca != '\0'));
+    return ca - cb;
+}
+
+