SimpleCrypt 0.3 (copied in for historical reasons)

1 files changed, 26 insertions, 7 deletions

diff --git a/encrypt.c b/encrypt.c
index 77249fd..a8cfec1 100644
--- a/encrypt.c
+++ b/encrypt.c
@@ -3,7 +3,18 @@
 #include <string.h>
 #include <unistd.h>
 
+void sanitise(char *x) {
+	char *curpos = x;
+	while (*x != '\0') {
+		*curpos = *x;
+		x++;
+		if (*curpos != '/') curpos++;
+	}
+	*curpos = '\0';
+}
+
 int main(int argc, char** argv) {
+	char * junk;
 	/* We need a file to encrypt */
 	if(argc==1) {
 		fprintf(stderr, "Arguments fool!");
@@ -13,21 +24,26 @@ int main(int argc, char** argv) {
 	FILE* file = fopen(argv[1], "r");
 	/* And a temporary file to hold the encrypted data */
 	char tpath[255] = "/tmp/";
+	sanitise(argv[1]);
 	strcat(tpath, argv[1]);
 	FILE* temp = fopen(tpath, "w");
-	/* Now we need the passphrase. Get it */
-	printf("Enter Passphrase:\n");
+	
 	char passphrase[255];
-	fgets(passphrase, 255, stdin);
+	do {
+		/* Now we need the passphrase. Get it */
+		printf("Enter Passphrase:\n");
+		junk = fgets(passphrase, 255, stdin);
+	} while (strlen(passphrase) <= 0);
+	
 	int passlen = strlen(passphrase) - 1;
 	int c,j=0;
 	/* Now we encrypt! */
 	while((c=fgetc(file)) != EOF) {
 	if(j==passlen) {
-			fputc(c+passphrase[0], temp);
+			fputc(c ^ passphrase[0], temp);
 			j=1;
 		} else {
-			fputc(c+passphrase[j], temp);
+			fputc(c ^ passphrase[j], temp);
 			j++;
 		}
 	}
@@ -38,7 +54,10 @@ int main(int argc, char** argv) {
 	/* Move the file back */
 	char cmd[255];
 	sprintf(cmd, "%s %s %s", "/bin/mv", tpath, argv[1]);
-	system(cmd);
-	return 0;
+	if (system(cmd) != 0) {
+		fprintf(stderr, "Your encrypted file is located in %s.", tpath);
+		return EXIT_FAILURE;
+	}
+	return EXIT_SUCCESS;
 }