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gpg: Add level 16 to --gen-random 

* g10/gpg.c (main): Add that hack.
--

This is an yet undocumented hack to allow printing hex encoded random
number with gpg.  The level is forced to be 1 which is is good for
almost all uses.  Note that --armor is ignored.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-08-04 11:03:49 +02:00
parent e7d7092390
commit d847f0651a
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
1 changed files with 42 additions and 29 deletions
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71
g10/gpg.c
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@ -4877,42 +4877,55 @@ main (int argc, char **argv)
case aGenRandom:
{
int level = argc ? atoi(*argv):0;
int count = argc > 1 ? atoi(argv[1]): 0;
int endless = !count;
int level = argc ? atoi(*argv):0;
int count = argc > 1 ? atoi(argv[1]): 0;
int endless = !count;
int hexhack = (level == 16);
if( argc < 1 || argc > 2 || level < 0 || level > 2 || count < 0 )
wrong_args("--gen-random 0|1|2 [count]");
if (hexhack)
level = 1;
while( endless || count ) {
byte *p;
/* We need a multiple of 3, so that in case of
armored output we get a correct string. No
linefolding is done, as it is best to leave this to
other tools */
size_t n = !endless && count < 99? count : 99;
if (argc < 1 || argc > 2 || level < 0 || level > 2 || count < 0)
wrong_args ("--gen-random 0|1|2 [count]");
p = gcry_random_bytes (n, level);
while (endless || count)
{
byte *p;
/* We need a multiple of 3, so that in case of armored
* output we get a correct string. No linefolding is
* done, as it is best to leave this to other tools */
size_t n = !endless && count < 99? count : 99;
size_t nn;
p = gcry_random_bytes (n, level);
#ifdef HAVE_DOSISH_SYSTEM
setmode ( fileno(stdout), O_BINARY );
setmode ( fileno(stdout), O_BINARY );
#endif
if (opt.armor) {
char *tmp = make_radix64_string (p, n);
es_fputs (tmp, es_stdout);
xfree (tmp);
if (n%3 == 1)
es_putc ('=', es_stdout);
if (n%3)
es_putc ('=', es_stdout);
} else {
es_fwrite( p, n, 1, es_stdout );
if (hexhack)
{
for (nn = 0; nn < n; nn++)
es_fprintf (es_stdout, "%02x", p[nn]);
}
xfree(p);
if( !endless )
count -= n;
else if (opt.armor)
{
char *tmp = make_radix64_string (p, n);
es_fputs (tmp, es_stdout);
xfree (tmp);
if (n%3 == 1)
es_putc ('=', es_stdout);
if (n%3)
es_putc ('=', es_stdout);
}
else
{
es_fwrite( p, n, 1, es_stdout );
}
xfree(p);
if (!endless)
count -= n;
}
if (opt.armor)
es_putc ('\n', es_stdout);
if (opt.armor || hexhack)
es_putc ('\n', es_stdout);
}
break;