1 files changed, 105 insertions, 0 deletions
diff --git a/src/libluh.c b/src/libluh.c
new file mode 100644
index 0000000..b7412b4
--- /dev/null
+++ b/src/libluh.c
@@ -0,0 +1,105 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include "libluh.h"
+
+char* readInput (FILE* stdinput, uint64_t size) {
+
+	int64_t character;
+	uint64_t length = 0;
+	char* input;
+
+	input = malloc (sizeof (char) * size);
+
+	while (EOF != (character = fgetc (stdinput))) {
+		input[length++] = character;
+		if (length == size) {
+			input = realloc (input, sizeof (char) * (size += 8));
+		}
+	}
+
+	input[length++] = '\0';
+
+	return realloc (input, sizeof (char) * length);
+}
+
+char* cryptXor (char* inputStr, FILE* keyFile) {
+
+	int64_t i;
+	char in1, in2;
+	int64_t inputSize = strlen (inputStr);
+	char* bytes = malloc (inputSize);
+
+	fseek (keyFile, 0L, SEEK_END);
+	int64_t keySize = ftell (keyFile);
+	fseek (keyFile, (keySize - inputSize), SEEK_SET);
+
+	for (i = 0; i < inputSize; i ++) {
+		in1 = inputStr[i];
+		fscanf (keyFile, "%c", &in2);
+		bytes[i] = in1 ^ in2;
+	}
+
+	return bytes;
+}
+
+char* fcryptXor (FILE* inputFile, FILE* keyFile) {
+
+	int64_t i;
+	char in1, in2;
+
+	fseek (inputFile, 0L, SEEK_END);
+	int64_t inputSize = ftell (inputFile);
+	rewind (inputFile);
+
+	char* bytes = malloc (inputSize);
+
+	fseek (keyFile, 0L, SEEK_END);
+	int64_t keySize = ftell (keyFile);
+	fseek (keyFile, (keySize - inputSize), SEEK_SET);
+
+	for (i = 0; i < inputSize; i ++) {
+		fscanf (inputFile, "%c", &in1);
+		fscanf (keyFile, "%c", &in2);
+		bytes[i] = in1 ^ in2;
+	}
+
+	return bytes;
+}
+
+char* binDump (char* inputStr, char* binChars) {
+
+	int64_t len = strlen (inputStr);
+	char* bits = malloc (8 * len);
+
+	int64_t i,j;
+
+	for (i = 0; i < len; i ++) {
+		for (j = 0; j < 8; j ++) {
+			bits[8 * i + j] = (inputStr[i] & (1 << (7 -j))) ? binChars[1] : binChars[0];
+		}
+	}
+
+	return bits;
+}
+
+char* ubinDump (char* inputStr, char* binChars) {
+
+	int64_t len = strlen (inputStr);
+	char* comp = malloc ((len / 8) + 1);
+
+	memset (comp, 0, ((len / 8) + 1));
+
+	int64_t i, j;
+
+	for (i = 0; i < (len / 8); i ++) {
+		for (j = 0; j < 8; j ++) {
+			if (inputStr[8 * i + j] == binChars[1]) {
+				comp[i] |= 1 << (7 - j);
+			}
+		}
+	}
+
+	return comp;
+}