“Transport commit”

2025-12-06 10:23:55 +01:00 · 2021-09-07 12:29:58 +02:00
parent aaad6b0e4f
commit a82f6d388b
4 changed files with 277 additions and 1 deletions
--- a/src/libexim-encrypt-dlfunc-decrypt-sealedbox.c
+++ b/src/libexim-encrypt-dlfunc-decrypt-sealedbox.c
@ -0,0 +1,119 @@
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <getopt.h>
+#include <linux/limits.h>
+#include <sodium.h>
+
+/*
+#define PASSWORD_MAXLEN 1024
+#define CIPHERSTRING_MAX (1024*64)
+
+void print_usage(char * progname) {
+    printf("Usage: %s [OPTIONS]\n\n", progname);
+    printf("Secret and public key:\n");
+    printf("  -s, --secret-key FILE      read secret key from file FILE\n");
+    printf("  -p, --public-key FILE      read public key from file FILE\n");
+    printf("\n");
+    printf("Select input:\n");
+    printf("  -c, --input STRING         decrypt contents of STRING\n");
+    printf("  -f, --infile FILE          decrypt contents of the first line of file FILE\n");
+    printf("\n");
+}
+
+typedef enum {
+    PASSWORD = 1,
+    SECRETKEY = 2
+} decryption_mode;
+
+typedef enum {
+    ARGUMENT = 1,
+    FROMFILE = 2
+} input_source;
+
+int main(int argc, char *argv[]) {
+    int opt= 0;
+    char password[PASSWORD_MAXLEN];
+    char secret_key[PATH_MAX];
+    char cipherstring[CIPHERSTRING_MAX];
+    char infile[PATH_MAX];
+    bool pass_from_env = false;
+
+    decryption_mode mode = 0;
+    input_source input = 0;
+
+    if (sodium_init() < 0) {
+        fputs("Unable to initialize libsodium", stderr);
+        exit(128);
+    }
+
+    // define arguments
+    static struct option long_options[] = {
+            {"password", required_argument, NULL, 'p'},
+            {"pass-from-env", no_argument, NULL, 'e'},
+            {"secret-key", required_argument, NULL, 'k'},
+            {"public-key", required_argument, NULL, 'k'},
+            {"cipherstring", required_argument, NULL, 's'},
+            {"infile", required_argument, NULL, 'f'}
+    };
+
+    // parse arguments
+    int long_index = 0;
+    while ((opt = getopt_long(argc, argv,"p:ek:s:f:",
+                              long_options, &long_index )) != -1) {
+        switch (opt) {
+            case 'p':
+                strncpy(password, optarg, sizeof(password)-1);
+                mode |= PASSWORD;
+                break;
+            case 'e':
+                pass_from_env = true;
+                mode |= PASSENV;
+                break;
+            case 'k':
+                strncpy(secret_key, optarg, sizeof(secret_key)-1);
+                mode |= SECRETKEY;
+                break;
+            case 's':
+                strncpy(cipherstring, optarg, sizeof(cipherstring)-1);
+                input |= ARGUMENT;
+                break;
+            case 'f':
+                strncpy(infile, optarg, sizeof(infile)-1);
+                input |= FROMFILE;
+                break;
+            default:
+                print_usage(argv[0]);
+                exit(EXIT_FAILURE);
+        }
+    }
+
+    // retrieve password/key
+    switch (mode) {
+        case PASSWORD:
+            if (pass_from_env == true) {
+
+            } else {
+
+            }
+            break;
+        case SECRETKEY:
+            break;
+        default:
+            printf("ERROR: Please specify a password OR a key file.\n\n");
+            print_usage(argv[0]);
+            exit(EXIT_FAILURE);
+    }
+    switch (input) {
+        case ARGUMENT:
+            case FROMFILE:
+                break;
+        default:
+            printf("ERROR: Please specify a ciphertext.\n\n");
+            print_usage(argv[0]);
+            exit(EXIT_FAILURE);
+    }
+}
+*/
+
+int main(void) { return 0; }