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dirmngr: Autodetect PEM format in dirmngr-client.

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* dirmngr/dirmngr-client.c (init_asctobin): New function.
(main): Move the initialization code to the new function.
(read_pem_certificate): Initialize base64 table.
(read_certificate): Try to decode certificates given in files as PEM
first.

GnuPG-bug-id: 1844
Signed-off-by: Justus Winter <justus@g10code.com>
This commit is contained in:
Justus Winter 2016-04-05 16:01:05 +02:00
parent f45ed07a0f
commit 9354293b8c
1 changed files with 30 additions and 13 deletions
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43
dirmngr/dirmngr-client.c
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@ -116,6 +116,25 @@ static unsigned char bintoasc[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
static unsigned char asctobin[256]; /* runtime initialized */
/* Build the helptable for radix64 to bin conversion. */
static void
init_asctobin (void)
{
static int initialized;
int i;
unsigned char *s;
if (initialized)
return;
initialized = 1;
for (i=0; i < 256; i++ )
asctobin[i] = 255; /* Used to detect invalid characters. */
for (s=bintoasc, i=0; *s; s++, i++)
asctobin[*s] = i;
}
/* Prototypes. */
static gpg_error_t read_certificate (const char *fname,
unsigned char **rbuf, size_t *rbuflen);
@ -234,19 +253,6 @@ main (int argc, char **argv )
if (log_get_errorcount (0))
exit (2);
/* Build the helptable for radix64 to bin conversion. */
if (opt.pem)
{
int i;
unsigned char *s;
for (i=0; i < 256; i++ )
asctobin[i] = 255; /* Used to detect invalid characters. */
for (s=bintoasc, i=0; *s; s++, i++)
asctobin[*s] = i;
}
if (cmd_ping)
err = 0;
else if (cmd_lookup || cmd_loadcrl)
@ -461,6 +467,8 @@ read_pem_certificate (const char *fname, unsigned char **rbuf, size_t *rbuflen)
s_waitend
} state = s_init;
init_asctobin ();
fp = fname? fopen (fname, "r") : stdin;
if (!fp)
return gpg_error_from_errno (errno);
@ -612,6 +620,15 @@ read_certificate (const char *fname, unsigned char **rbuf, size_t *rbuflen)
if (opt.pem)
return read_pem_certificate (fname, rbuf, rbuflen);
else if (fname)
{
/* A filename has been given. Let's just assume it is in PEM
format and decode it, and fall back to interpreting it as
binary certificate if that fails. */
err = read_pem_certificate (fname, rbuf, rbuflen);
if (! err)
return 0;
}
fp = fname? fopen (fname, "rb") : stdin;
if (!fp)