--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main.c	Wed Jan 26 20:25:08 2022 -0500
@@ -0,0 +1,194 @@
+/* Movie Studio / Vegas Pro version spoofer
+ * by Paper
+*/
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "../include/common.h"
+#ifdef _MSC_VER
+#define strdup(p) _strdup(p)
+#endif
+
+static struct option options_long[] = {
+	{"input", required_argument, NULL, 'i'},
+	{"output", required_argument, NULL, 'o'},
+	{"version", required_argument, NULL, 'v'},
+	{"type", required_argument, NULL, 't'},
+	{"help", 0, NULL, 'h'}
+};
+
+char* strremove(char* str, const char* sub) {
+    size_t len = strlen(sub);
+    if (len > 0) {
+        char *p = str;
+        while ((p = strstr(p, sub)) != NULL) {
+            memmove(p, p + len, strlen(p + len) + 1);
+        }
+    }
+    return str;
+}
+
+void set_data(unsigned char magic[], uint16_t version, FILE* target) {
+	int i;
+	fseek(target, 0x46, SEEK_SET);
+	fputc(version, target);
+	for (i=0; i<=sizeof(*magic); ++i) {
+		fseek(target, 0x18+i, SEEK_SET);
+		fputc(magic[i], target);
+	}
+}
+
+int copy_file(char* source_file, char* target_file) {
+	FILE *source, *target;
+
+	source = fopen(source_file, "rb");
+
+	if (source == NULL) return 1;
+
+	target = fopen(target_file, "wb");
+
+	if (target == NULL) {
+		fclose(source);
+		return 1;
+	}
+
+	size_t n, m;
+	unsigned char buff[8192];
+	do {
+		n = fread(buff, 1, sizeof(buff), source);
+		if (n) m = fwrite(buff, 1, n, target);
+		else m = 0;
+	} while ((n > 0) && (n == m));
+
+	fclose(target);
+	fclose(source);
+	return 0;
+}
+
+int main(int argc, char *argv[]) {
+	int c, option_index = 0;
+	unsigned char magic[16];
+	FILE* outfile;
+	struct arguments {
+		char input[128];
+		char output[128];
+		int version;
+		char type[128];
+	} args;
+	strcpy(args.input, " ");
+	strcpy(args.output, " ");
+	args.version = -1;
+	strcpy(args.type, " ");
+
+	while ((c = getopt_long(argc, argv, "i:o:v:t:h", options_long, &option_index)) != -1)
+		switch(c) {
+			case 'i':
+				strncpy(args.input, optarg, sizeof(args.input)-1);  /* subtract 1 to make sure it's "null-safe" */
+				break;
+			case 'o':
+				strncpy(args.output, optarg, sizeof(args.input)-1);
+				break;
+			case 'v':
+				args.version = abs(atoi(strcpy(optarg)));  /* abs() for possible negative inputs */
+				break;
+			case 't':
+				strncpy(args.type, optarg, sizeof(args.input)-1);
+				break;
+			case 'h':
+			default:
+				printf("msvpvf by Paper\nusage: %s (-i/--input) infile [(-o/--output) outfile] (-v/--version) version (-t/--type) [vf, veg]\n", argv[0]);
+				return 0;
+		}
+	if (argc == 1) {
+		printf("msvpvf by Paper\nusage: %s (-i/--input) infile [(-o/--output) outfile] (-v/--version) version (-t/--type) [vf, veg]\n", argv[0]);
+		return 0;
+	}
+	if (strcmp(args.input, " ") == 0) {
+		printf("Input file name?\n");
+		fflush(stdout);
+		fgets(args.input, sizeof(args.input)-1, stdin);
+		args.input[strcspn(args.input, "\r\n")] = 0;
+	}
+	if (access(args.input, F_OK) != 0) {
+		fprintf(stderr, "Input file \"%s\" doesn't exist! Exiting.", args.input);
+		return 1;
+	}
+	FILE* input_file = fopen(args.input, "r");
+	if (fgetc() == EOF) {
+		fprintf(stderr, "Input file \"%s\" is empty.", args.input);
+		fclose(input_file);
+		return 1;
+	}
+	fseek(input_file, 0x46, SEEK_SET);
+	printf("Input file version: %d\n", fgetc(input_file));
+	fseek(input_file, 0x18, SEEK_SET);
+	int file_version = fgetc(input_file);
+	printf("Input file type: ");
+	if (file_version == 0xEF) {
+		printf("VEGAS Pro\n\n");
+	} else if (file_version == 0xF6) {
+		printf("Movie Studio\n\n");
+	} else {
+		printf("Unknown\n\n");
+	}
+	int* ptr = &args.version;
+	if (args.version == -1) {
+		printf("What version of VEGAS would you like to spoof to?: ");
+		fflush(stdout);
+		scanf("%d", ptr);
+	}
+	if (strcmp(args.type, " ") == 0) {
+		printf("Would you like it to be VEGAS Pro or Movie Studio? [veg/vf]: ");
+		fflush(stdout);
+		scanf("%3s", args.type);
+	}
+	fflush(stdout);
+	if (strcmp(args.output, " ") == 0) { /* string manipulation hell */
+		char temp[128] = {'V'};
+		char str_version[16] = {};
+		sprintf(str_version, "%d", args.version);
+		strncat(temp, str_version, 2);
+		strncat(temp, "_", 1);
+		strncat(temp, args.input, 120);
+		strcpy(temp, strremove(temp, strrchr(args.input, ('.')))); /* remove file extension */
+		strncat(temp, ".", 1);
+		strncat(temp, args.type, 3);
+		strncpy(args.output, temp, 127);
+	}
+	if (strcmp(args.type, "veg") == 0) {
+		const unsigned char T[] = {0xEF, 0x29, 0xC4, 0x46, 0x4A, 0x90, 0xD2, 0x11, 0x87, 0x22, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A};
+		for (option_index = 0; option_index <= 15; option_index++) {
+			magic[option_index] = T[option_index];
+		}
+	} else if (strcmp(args.type, "vf") == 0) {
+		const unsigned char T[] = {0xF6, 0x1B, 0x3C, 0x53, 0x35, 0xD6, 0xF3, 0x43, 0x8A, 0x90, 0x64, 0xB8, 0x87, 0x23, 0x1F, 0x7F};
+		for (option_index = 0; option_index <= 15; option_index++) {
+			magic[option_index] = T[option_index];
+		}
+	} else {
+		fprintf(stderr, "Type %s is invalid!", args.type);
+		return 1;
+	}
+	copy_file(args.input, args.output);
+#ifdef _WIN32
+	if (strcspn(args.input, "<>:\"/\\|?*") == strlen(args.input)+1) {
+#elif defined(__unix__)
+	if (strcspn(args.input, "/") == strlen(args.input)+1) {
+#else
+	if (NULL) {
+#endif
+		fprintf(stderr, "Invalid output filename detected! Exiting...");
+		return 1;
+	}
+	outfile = fopen(args.output, "r+b");
+	if (outfile == NULL) {
+		fprintf(stderr, "Failed to open file %s! Do you have write permissions?", args.output);
+		return 1;
+	}
+	set_data(magic, args.version, outfile);
+	fclose(outfile);
+	return 0;
+}