hreese/exim-encrypt-dlfunc
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Wrote decrypt tool for sodium_crypto_box_seal plus matching tests.

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Lots of code cleanups.
This commit is contained in:
Heiko Reese
2021-09-12 02:06:10 +02:00
parent e1968e8f8c
commit e26daf675b
7 changed files with 319 additions and 126 deletions
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28
src/libexim-encrypt-dlfunc-decrypt-secretbox.c
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@ -9,20 +9,21 @@
#define ENVVAR_PASSWORD_NAME "LIBEXIM_PASSWORD"
void print_usage(char * progname) {
printf("Usage: %s [OPTIONS]\n\n", progname);
void print_usage(char *progname) {
printf("Usage: %s [OPTIONS] [CIPHERTEXT]\n\n", progname);
printf("Password:\n");
printf(" -p, --password PASSWORD decrypt using PASSWORD\n");
printf(" -p, --password PASSWORD Decrypt using PASSWORD\n");
printf("\n");
printf(" If the environment variable LIBEXIM_PASSWORD is set the password is read from there.\n");
printf(" Setting a password with -p/--password overwrites this mechanism.\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(" -f, --infile FILE Decrypt contents of the first line of file FILE (use - for stdin)\n");
printf("\n");
printf("Output:\n");
printf(" -n, --no-newline Do not add a newline to the output\n");
printf(" -n, --no-newline Do not append a newline to the output\n");
printf("\n");
printf("Password and ciphertext are expected to be base64-encoded (as produced by the library).\n");
printf("\n");
}
@ -52,22 +53,17 @@ int main(int argc, char *argv[]) {
}
// define arguments
const char *shortargs = "p:ef:n";
const char *shortargs = "p:f:n";
static struct option long_options[] = {
{"password", required_argument, NULL, 'p'},
{"pass-from-env", no_argument, NULL, 'e'},
{"infile", required_argument, NULL, 'f'},
{"no-newline", no_argument, NULL, 'n'},
{0, 0, 0, 0}
{"password", required_argument, NULL, 'p'},
{"infile", required_argument, NULL, 'f'},
{"no-newline", no_argument, NULL, 'n'},
{0, 0, 0, 0}
};
// check environment for LIBEXIM_PASSWORD
password_env = getenv(ENVVAR_PASSWORD_NAME);
if (password_env != NULL && strlen(password_env) > 0) {
// password_len = strlen((const char *) password_env);
// password = malloc(password_len);
// sodium_memzero(password, password_len);
// strncpy(password, password_env, password_len);
password = password_env;
password_len = strlen(password);
mode |= PASSENV;