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-rw-r--r--encrypt.c33
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;
}