static gpg_error_t
armor_data (char **r_string, const void *data, size_t datalen)
{
gpg_error_t err;
struct b64state b64state;
estream_t fp;
long length;
char *buffer;
size_t nread;
*r_string = NULL;
fp = es_fopenmem (0, "rw");
if (!fp)
return gpg_error_from_syserror ();
if ((err=b64enc_start_es (&b64state, fp, "PGP PUBLIC KEY BLOCK"))
|| (err=b64enc_write (&b64state, data, datalen))
|| (err = b64enc_finish (&b64state)))
{
es_fclose (fp);
return err;
}
/* FIXME: To avoid the extra buffer allocation estream should
provide a function to snatch the internal allocated memory from
such a memory stream. */
length = es_ftell (fp);
if (length < 0)
{
err = gpg_error_from_syserror ();
es_fclose (fp);
return err;
}
buffer = xtrymalloc (length+1);
if (!buffer)
{
err = gpg_error_from_syserror ();
es_fclose (fp);
return err;
}
es_rewind (fp);
if (es_read (fp, buffer, length, &nread))
{
err = gpg_error_from_syserror ();
es_fclose (fp);
return err;
}
buffer[nread] = 0;
es_fclose (fp);
*r_string = buffer;
return 0;
}
/* Verify the signed data. */
static void
verify_signature (receive_ctx_t ctx)
{
gpg_error_t err;
ccparray_t ccp;
const char **argv;
log_assert (ctx->signeddata);
log_assert (ctx->signature);
es_rewind (ctx->signeddata);
es_rewind (ctx->signature);
ccparray_init (&ccp, 0);
ccparray_put (&ccp, "--batch");
if (opt.verbose)
ccparray_put (&ccp, "--verbose");
ccparray_put (&ccp, "--enable-special-filenames");
ccparray_put (&ccp, "--status-fd=2");
ccparray_put (&ccp, "--verify");
ccparray_put (&ccp, "--");
ccparray_put (&ccp, "-&@INEXTRA@");
ccparray_put (&ccp, "-");
ccparray_put (&ccp, NULL);
argv = ccparray_get (&ccp, NULL);
if (!argv)
{
err = gpg_error_from_syserror ();
goto leave;
}
err = gnupg_exec_tool_stream (opt.gpg_program, argv, ctx->signeddata,
ctx->signature, NULL,
verify_signature_status_cb, ctx);
if (err)
{
log_error ("verification failed: %s\n", gpg_strerror (err));
goto leave;
}
leave:
xfree (argv);
}
/* Helper to write mail to the output(s). */
gpg_error_t
wks_send_mime (mime_maker_t mime)
{
gpg_error_t err;
estream_t mail;
/* Without any option we take a short path. */
if (!opt.use_sendmail && !opt.output)
{
es_set_binary (es_stdout);
return mime_maker_make (mime, es_stdout);
}
mail = es_fopenmem (0, "w+b");
if (!mail)
{
err = gpg_error_from_syserror ();
return err;
}
err = mime_maker_make (mime, mail);
if (!err && opt.output)
{
es_rewind (mail);
err = send_mail_to_file (mail, opt.output);
}
if (!err && opt.use_sendmail)
{
es_rewind (mail);
err = send_mail (mail);
}
es_fclose (mail);
return err;
}
/* Ask the dirmngr for the policy flags and return them as an estream
* memory stream. If no policy flags are set, NULL is stored at
* R_BUFFER. */
gpg_error_t
wkd_get_policy_flags (const char *addrspec, estream_t *r_buffer)
{
gpg_error_t err;
assuan_context_t ctx;
struct wkd_get_parm_s parm;
char *line = NULL;
char *buffer = NULL;
memset (&parm, 0, sizeof parm);
*r_buffer = NULL;
err = connect_dirmngr (&ctx);
if (err)
return err;
line = es_bsprintf ("WKD_GET --policy-flags -- %s", addrspec);
if (!line)
{
err = gpg_error_from_syserror ();
goto leave;
}
if (strlen (line) + 2 >= ASSUAN_LINELENGTH)
{
err = gpg_error (GPG_ERR_TOO_LARGE);
goto leave;
}
parm.memfp = es_fopenmem (0, "rwb");
if (!parm.memfp)
{
err = gpg_error_from_syserror ();
goto leave;
}
err = assuan_transact (ctx, line, wkd_get_data_cb, &parm,
NULL, NULL, wkd_get_status_cb, &parm);
if (err)
goto leave;
es_rewind (parm.memfp);
*r_buffer = parm.memfp;
parm.memfp = 0;
leave:
es_free (buffer);
es_fclose (parm.memfp);
xfree (line);
assuan_release (ctx);
return err;
}
/* A KSBA reader callback to read from an estream. */
static int
my_estream_ksba_reader_cb (void *cb_value, char *buffer, size_t count,
size_t *r_nread)
{
estream_t fp = cb_value;
if (!fp)
return gpg_error (GPG_ERR_INV_VALUE);
if (!buffer && !count && !r_nread)
{
es_rewind (fp);
return 0;
}
*r_nread = es_fread (buffer, 1, count, fp);
if (!*r_nread)
return -1; /* EOF or error. */
return 0; /* Success. */
}
/* Fork and exec the PGMNAME, see exechelp.h for details. */
gpg_error_t
gnupg_spawn_process (const char *pgmname, const char *argv[],
gpg_err_source_t errsource,
void (*preexec)(void), unsigned int flags,
estream_t infp,
estream_t *r_outfp,
estream_t *r_errfp,
pid_t *pid)
{
gpg_error_t err;
SECURITY_ATTRIBUTES sec_attr;
PROCESS_INFORMATION pi =
{
NULL, /* Returns process handle. */
0, /* Returns primary thread handle. */
0, /* Returns pid. */
0 /* Returns tid. */
};
STARTUPINFO si;
int cr_flags;
char *cmdline;
HANDLE inhandle = INVALID_HANDLE_VALUE;
HANDLE outpipe[2] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE};
HANDLE errpipe[2] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE};
estream_t outfp = NULL;
estream_t errfp = NULL;
HANDLE nullhd[3] = {INVALID_HANDLE_VALUE,
INVALID_HANDLE_VALUE,
INVALID_HANDLE_VALUE};
int i;
es_syshd_t syshd;
if (r_outfp)
*r_outfp = NULL;
if (r_errfp)
*r_errfp = NULL;
*pid = (pid_t)(-1); /* Always required. */
if (infp)
{
es_fflush (infp);
es_rewind (infp);
es_syshd (infp, &syshd);
switch (syshd.type)
{
case ES_SYSHD_FD:
inhandle = (HANDLE)_get_osfhandle (syshd.u.fd);
break;
case ES_SYSHD_SOCK:
inhandle = (HANDLE)_get_osfhandle (syshd.u.sock);
break;
case ES_SYSHD_HANDLE:
inhandle = syshd.u.handle;
break;
default:
inhandle = INVALID_HANDLE_VALUE;
break;
}
if (inhandle == INVALID_HANDLE_VALUE)
return gpg_err_make (errsource, GPG_ERR_INV_VALUE);
/* FIXME: In case we can't get a system handle (e.g. due to
es_fopencookie we should create a piper and a feeder
thread. */
}
if (r_outfp)
{
if (create_inheritable_pipe (outpipe, 1))
{
err = gpg_err_make (errsource, GPG_ERR_GENERAL);
log_error (_("error creating a pipe: %s\n"), gpg_strerror (err));
return err;
}
syshd.type = ES_SYSHD_HANDLE;
syshd.u.handle = outpipe[0];
outfp = es_sysopen (&syshd, "r");
if (!outfp)
{
err = gpg_err_make (errsource, gpg_err_code_from_syserror ());
log_error (_("error creating a stream for a pipe: %s\n"),
gpg_strerror (err));
CloseHandle (outpipe[0]);
CloseHandle (outpipe[1]);
outpipe[0] = outpipe[1] = INVALID_HANDLE_VALUE;
return err;
}
}
if (r_errfp)
{
if (create_inheritable_pipe (errpipe, 1))
{
err = gpg_err_make (errsource, GPG_ERR_GENERAL);
log_error (_("error creating a pipe: %s\n"), gpg_strerror (err));
return err;
}
syshd.type = ES_SYSHD_HANDLE;
syshd.u.handle = errpipe[0];
errfp = es_sysopen (&syshd, "r");
if (!errfp)
{
err = gpg_err_make (errsource, gpg_err_code_from_syserror ());
log_error (_("error creating a stream for a pipe: %s\n"),
gpg_strerror (err));
CloseHandle (errpipe[0]);
CloseHandle (errpipe[1]);
errpipe[0] = errpipe[1] = INVALID_HANDLE_VALUE;
if (outfp)
es_fclose (outfp);
else if (outpipe[0] != INVALID_HANDLE_VALUE)
CloseHandle (outpipe[0]);
if (outpipe[1] != INVALID_HANDLE_VALUE)
CloseHandle (outpipe[1]);
return err;
}
}
/* Prepare security attributes. */
memset (&sec_attr, 0, sizeof sec_attr );
sec_attr.nLength = sizeof sec_attr;
sec_attr.bInheritHandle = FALSE;
/* Build the command line. */
err = build_w32_commandline (pgmname, argv, &cmdline);
if (err)
return err;
if (inhandle != INVALID_HANDLE_VALUE)
nullhd[0] = w32_open_null (0);
if (outpipe[1] != INVALID_HANDLE_VALUE)
nullhd[1] = w32_open_null (0);
if (errpipe[1] != INVALID_HANDLE_VALUE)
nullhd[2] = w32_open_null (0);
/* Start the process. Note that we can't run the PREEXEC function
because this might change our own environment. */
(void)preexec;
memset (&si, 0, sizeof si);
si.cb = sizeof (si);
si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
si.wShowWindow = DEBUG_W32_SPAWN? SW_SHOW : SW_MINIMIZE;
si.hStdInput = inhandle == INVALID_HANDLE_VALUE? nullhd[0] : inhandle;
si.hStdOutput = outpipe[1] == INVALID_HANDLE_VALUE? nullhd[1] : outpipe[1];
si.hStdError = errpipe[1] == INVALID_HANDLE_VALUE? nullhd[2] : errpipe[1];
cr_flags = (CREATE_DEFAULT_ERROR_MODE
| ((flags & 128)? DETACHED_PROCESS : 0)
| GetPriorityClass (GetCurrentProcess ())
| CREATE_SUSPENDED);
/* log_debug ("CreateProcess, path=`%s' cmdline=`%s'\n", pgmname, cmdline); */
if (!CreateProcess (pgmname, /* Program to start. */
cmdline, /* Command line arguments. */
&sec_attr, /* Process security attributes. */
&sec_attr, /* Thread security attributes. */
TRUE, /* Inherit handles. */
cr_flags, /* Creation flags. */
NULL, /* Environment. */
NULL, /* Use current drive/directory. */
&si, /* Startup information. */
&pi /* Returns process information. */
))
{
log_error ("CreateProcess failed: %s\n", w32_strerror (-1));
xfree (cmdline);
if (outfp)
es_fclose (outfp);
else if (outpipe[0] != INVALID_HANDLE_VALUE)
CloseHandle (outpipe[0]);
if (outpipe[1] != INVALID_HANDLE_VALUE)
CloseHandle (outpipe[1]);
if (errfp)
es_fclose (errfp);
else if (errpipe[0] != INVALID_HANDLE_VALUE)
CloseHandle (errpipe[0]);
if (errpipe[1] != INVALID_HANDLE_VALUE)
CloseHandle (errpipe[1]);
return gpg_err_make (errsource, GPG_ERR_GENERAL);
}
xfree (cmdline);
cmdline = NULL;
/* Close the inherited handles to /dev/null. */
for (i=0; i < DIM (nullhd); i++)
if (nullhd[i] != INVALID_HANDLE_VALUE)
CloseHandle (nullhd[i]);
/* Close the inherited ends of the pipes. */
if (outpipe[1] != INVALID_HANDLE_VALUE)
CloseHandle (outpipe[1]);
if (errpipe[1] != INVALID_HANDLE_VALUE)
CloseHandle (errpipe[1]);
/* log_debug ("CreateProcess ready: hProcess=%p hThread=%p" */
/* " dwProcessID=%d dwThreadId=%d\n", */
/* pi.hProcess, pi.hThread, */
/* (int) pi.dwProcessId, (int) pi.dwThreadId); */
/* log_debug (" outfp=%p errfp=%p\n", outfp, errfp); */
/* Fixme: For unknown reasons AllowSetForegroundWindow returns an
invalid argument error if we pass it the correct processID. As a
workaround we use -1 (ASFW_ANY). */
if ( (flags & 64) )
gnupg_allow_set_foregound_window ((pid_t)(-1)/*pi.dwProcessId*/);
/* Process has been created suspended; resume it now. */
ResumeThread (pi.hThread);
CloseHandle (pi.hThread);
if (r_outfp)
*r_outfp = outfp;
if (r_errfp)
*r_errfp = errfp;
*pid = handle_to_pid (pi.hProcess);
return 0;
}
/* Fork and exec the PGMNAME, see exechelp.h for details. */
gpg_error_t
gnupg_spawn_process (const char *pgmname, const char *argv[],
gpg_err_source_t errsource,
void (*preexec)(void), unsigned int flags,
estream_t infp,
estream_t *r_outfp,
estream_t *r_errfp,
pid_t *pid)
{
gpg_error_t err;
int infd = -1;
int outpipe[2] = {-1, -1};
int errpipe[2] = {-1, -1};
estream_t outfp = NULL;
estream_t errfp = NULL;
(void)flags; /* Currently not used. */
if (r_outfp)
*r_outfp = NULL;
if (r_errfp)
*r_errfp = NULL;
*pid = (pid_t)(-1); /* Always required. */
if (infp)
{
es_fflush (infp);
es_rewind (infp);
infd = es_fileno (infp);
if (infd == -1)
return gpg_err_make (errsource, GPG_ERR_INV_VALUE);
}
if (r_outfp)
{
err = create_pipe_and_estream (outpipe, &outfp, errsource);
if (err)
return err;
}
if (r_errfp)
{
err = create_pipe_and_estream (errpipe, &errfp, errsource);
if (err)
{
if (outfp)
es_fclose (outfp);
else if (outpipe[0] != -1)
close (outpipe[0]);
if (outpipe[1] != -1)
close (outpipe[1]);
return err;
}
}
*pid = fork ();
if (*pid == (pid_t)(-1))
{
err = gpg_err_make (errsource, gpg_err_code_from_syserror ());
log_error (_("error forking process: %s\n"), gpg_strerror (err));
if (outfp)
es_fclose (outfp);
else if (outpipe[0] != -1)
close (outpipe[0]);
if (outpipe[1] != -1)
close (outpipe[1]);
if (errfp)
es_fclose (errfp);
else if (errpipe[0] != -1)
close (errpipe[0]);
if (errpipe[1] != -1)
close (errpipe[1]);
return err;
}
if (!*pid)
{
/* This is the child. */
gcry_control (GCRYCTL_TERM_SECMEM);
es_fclose (outfp);
es_fclose (errfp);
do_exec (pgmname, argv, infd, outpipe[1], errpipe[1], preexec);
/*NOTREACHED*/
}
/* This is the parent. */
if (outpipe[1] != -1)
close (outpipe[1]);
if (errpipe[1] != -1)
close (errpipe[1]);
if (r_outfp)
*r_outfp = outfp;
if (r_errfp)
*r_errfp = errfp;
return 0;
}
/* Decrypt the collected data. */
static void
decrypt_data (receive_ctx_t ctx)
{
gpg_error_t err;
ccparray_t ccp;
const char **argv;
int c;
es_rewind (ctx->encrypted);
if (!ctx->plaintext)
ctx->plaintext = es_fopenmem (0, "w+b");
if (!ctx->plaintext)
{
err = gpg_error_from_syserror ();
log_error ("error allocating space for plaintext: %s\n",
gpg_strerror (err));
return;
}
ccparray_init (&ccp, 0);
/* We limit the output to 64 KiB to avoid DoS using compression
* tricks. A regular client will anyway only send a minimal key;
* that is one w/o key signatures and attribute packets. */
ccparray_put (&ccp, "--max-output=0xf0000"); /*FIXME: Change s/F/1/ */
ccparray_put (&ccp, "--batch");
if (opt.verbose)
ccparray_put (&ccp, "--verbose");
ccparray_put (&ccp, "--always-trust");
ccparray_put (&ccp, "--decrypt");
ccparray_put (&ccp, "--");
ccparray_put (&ccp, NULL);
argv = ccparray_get (&ccp, NULL);
if (!argv)
{
err = gpg_error_from_syserror ();
goto leave;
}
err = gnupg_exec_tool_stream (opt.gpg_program, argv, ctx->encrypted,
NULL, ctx->plaintext,
decrypt_data_status_cb, ctx);
if (err)
{
log_error ("decryption failed: %s\n", gpg_strerror (err));
goto leave;
}
if (opt.debug)
{
es_rewind (ctx->plaintext);
log_debug ("plaintext: '");
while ((c = es_getc (ctx->plaintext)) != EOF)
log_printf ("%c", c);
log_printf ("'\n");
}
es_rewind (ctx->plaintext);
leave:
xfree (argv);
}
/* Receive a WKS mail from FP and process it accordingly. On success
* the RESULT_CB is called with the mediatype and a stream with the
* decrypted data. */
gpg_error_t
wks_receive (estream_t fp,
gpg_error_t (*result_cb)(void *opaque,
const char *mediatype,
estream_t data),
void *cb_data)
{
gpg_error_t err;
receive_ctx_t ctx;
mime_parser_t parser;
estream_t plaintext = NULL;
int c;
ctx = xtrycalloc (1, sizeof *ctx);
if (!ctx)
return gpg_error_from_syserror ();
err = mime_parser_new (&parser, ctx);
if (err)
goto leave;
if (opt.verbose > 1 || opt.debug)
mime_parser_set_verbose (parser, opt.debug? 10: 1);
mime_parser_set_new_part (parser, new_part);
mime_parser_set_part_data (parser, part_data);
mime_parser_set_collect_encrypted (parser, collect_encrypted);
mime_parser_set_collect_signeddata (parser, collect_signeddata);
mime_parser_set_collect_signature (parser, collect_signature);
err = mime_parser_parse (parser, fp);
if (err)
goto leave;
if (ctx->key_data)
log_info ("key data found\n");
if (ctx->wkd_data)
log_info ("wkd data found\n");
if (ctx->plaintext)
{
if (opt.verbose)
log_info ("parsing decrypted message\n");
plaintext = ctx->plaintext;
ctx->plaintext = NULL;
if (ctx->encrypted)
es_rewind (ctx->encrypted);
if (ctx->signeddata)
es_rewind (ctx->signeddata);
if (ctx->signature)
es_rewind (ctx->signature);
err = mime_parser_parse (parser, plaintext);
if (err)
return err;
}
if (!ctx->key_data && !ctx->wkd_data)
{
log_error ("no suitable data found in the message\n");
err = gpg_error (GPG_ERR_NO_DATA);
goto leave;
}
if (ctx->key_data)
{
if (opt.debug)
{
es_rewind (ctx->key_data);
log_debug ("Key: '");
log_printf ("\n");
while ((c = es_getc (ctx->key_data)) != EOF)
log_printf ("%c", c);
log_printf ("'\n");
}
if (result_cb)
{
es_rewind (ctx->key_data);
err = result_cb (cb_data, "application/pgp-keys", ctx->key_data);
if (err)
goto leave;
}
}
if (ctx->wkd_data)
{
if (opt.debug)
{
es_rewind (ctx->wkd_data);
log_debug ("WKD: '");
log_printf ("\n");
while ((c = es_getc (ctx->wkd_data)) != EOF)
log_printf ("%c", c);
log_printf ("'\n");
}
if (result_cb)
{
es_rewind (ctx->wkd_data);
err = result_cb (cb_data, "application/vnd.gnupg.wks", ctx->wkd_data);
if (err)
goto leave;
}
}
leave:
es_fclose (plaintext);
mime_parser_release (parser);
es_fclose (ctx->encrypted);
es_fclose (ctx->plaintext);
es_fclose (ctx->signeddata);
es_fclose (ctx->signature);
es_fclose (ctx->key_data);
es_fclose (ctx->wkd_data);
xfree (ctx);
return err;
}
/* Fork and exec the PGMNAME, see exechelp.h for details. */
gpg_error_t
gnupg_spawn_process (const char *pgmname, const char *argv[],
gpg_err_source_t errsource,
void (*preexec)(void), unsigned int flags,
estream_t infp,
estream_t *r_outfp,
estream_t *r_errfp,
pid_t *pid)
{
gpg_error_t err;
PROCESS_INFORMATION pi = {NULL };
char *cmdline;
es_syshd_t syshd;
struct {
HANDLE hd;
int rvid;
} inpipe = {INVALID_HANDLE_VALUE, 0};
struct {
HANDLE hd;
int rvid;
} outpipe = {INVALID_HANDLE_VALUE, 0};
struct {
HANDLE hd;
int rvid;
} errpipe = {INVALID_HANDLE_VALUE, 0};
estream_t outfp = NULL;
estream_t errfp = NULL;
(void)preexec;
(void)flags;
/* Setup return values. */
if (r_outfp)
*r_outfp = NULL;
if (r_errfp)
*r_errfp = NULL;
*pid = (pid_t)(-1); /* Always required. */
log_debug ("%s: enter\n", __func__);
if (infp)
{
es_fflush (infp);
es_rewind (infp);
/* Create a pipe to copy our infile to the stdin of the child
process. On success inpipe.hd is owned by the feeder. */
inpipe.hd = _assuan_w32ce_prepare_pipe (&inpipe.rvid, 1);
if (inpipe.hd == INVALID_HANDLE_VALUE)
{
log_error ("_assuan_w32ce_prepare_pipe failed: %s\n",
w32_strerror (-1));
gpg_err_set_errno (EIO);
return gpg_error_from_syserror ();
}
log_debug ("%s: inpipe %p created; hd=%p rvid=%d\n", __func__,
infp, inpipe.hd, inpipe.rvid);
err = start_feeder (infp, inpipe.hd, 1);
if (err)
{
log_error ("error spawning feeder: %s\n", gpg_strerror (err));
CloseHandle (inpipe.hd);
return err;
}
inpipe.hd = INVALID_HANDLE_VALUE; /* Now owned by the feeder. */
log_debug ("%s: inpipe %p created; feeder started\n", __func__,
infp);
}
if (r_outfp)
{
/* Create a pipe to make the stdout of the child process
available as a stream. */
outpipe.hd = _assuan_w32ce_prepare_pipe (&outpipe.rvid, 0);
if (outpipe.hd == INVALID_HANDLE_VALUE)
{
log_error ("_assuan_w32ce_prepare_pipe failed: %s\n",
w32_strerror (-1));
gpg_err_set_errno (EIO);
/* Fixme release other stuff/kill feeder. */
return gpg_error_from_syserror ();
}
syshd.type = ES_SYSHD_HANDLE;
syshd.u.handle = outpipe.hd;
err = 0;
outfp = es_sysopen (&syshd, "r");
if (!outfp)
{
err = gpg_err_make (errsource, gpg_err_code_from_syserror ());
log_error ("error opening pipe stream: %s\n", gpg_strerror (err));
CloseHandle (outpipe.hd);
return err;
}
log_debug ("%s: outpipe %p created; hd=%p rvid=%d\n", __func__,
outfp, outpipe.hd, outpipe.rvid);
outpipe.hd = INVALID_HANDLE_VALUE; /* Now owned by the OUTFP. */
}
if (r_errfp)
{
/* Create a pipe to make the stderr of the child process
available as a stream. */
errpipe.hd = _assuan_w32ce_prepare_pipe (&errpipe.rvid, 0);
if (errpipe.hd == INVALID_HANDLE_VALUE)
{
log_error ("_assuan_w32ce_prepare_pipe failed: %s\n",
w32_strerror (-1));
gpg_err_set_errno (EIO);
/* Fixme release other stuff/kill feeder. */
return gpg_error_from_syserror ();
}
syshd.type = ES_SYSHD_HANDLE;
syshd.u.handle = errpipe.hd;
err = 0;
errfp = es_sysopen (&syshd, "r");
if (!errfp)
{
err = gpg_err_make (errsource, gpg_err_code_from_syserror ());
log_error ("error opening pipe stream: %s\n", gpg_strerror (err));
CloseHandle (errpipe.hd);
return err;
}
log_debug ("%s: errpipe %p created; hd=%p rvid=%d\n", __func__,
errfp, errpipe.hd, errpipe.rvid);
errpipe.hd = INVALID_HANDLE_VALUE; /* Now owned by the ERRFP. */
}
/* Build the command line. */
err = build_w32_commandline (argv, inpipe.rvid, outpipe.rvid, errpipe.rvid,
&cmdline);
if (err)
{
/* Fixme release other stuff/kill feeder. */
CloseHandle (errpipe.hd);
return err;
}
log_debug ("CreateProcess, path='%s' cmdline='%s'\n", pgmname, cmdline);
if (!create_process (pgmname, cmdline, &pi))
{
log_error ("CreateProcess failed: %s\n", w32_strerror (-1));
xfree (cmdline);
/* Fixme release other stuff/kill feeder. */
CloseHandle (errpipe.hd);
return gpg_error (GPG_ERR_GENERAL);
}
xfree (cmdline);
cmdline = NULL;
/* Note: The other end of the pipe is a rendezvous id and thus there
is no need for a close. */
log_debug ("CreateProcess ready: hProcess=%p hThread=%p"
" dwProcessID=%d dwThreadId=%d\n",
pi.hProcess, pi.hThread,
(int) pi.dwProcessId, (int) pi.dwThreadId);
/* Process has been created suspended; resume it now. */
ResumeThread (pi.hThread);
CloseHandle (pi.hThread);
if (r_outfp)
*r_outfp = outfp;
if (r_errfp)
*r_errfp = errfp;
*pid = handle_to_pid (pi.hProcess);
return 0;
}
/* Run gpg as a filter on KEY and write the output to a new stream
* stored at R_NEWKEY. The new key will contain only the user id UID.
* Returns 0 on success. Only one key is expected in KEY. If BINARY
* is set the resulting key is returned as a binary (non-armored)
* keyblock. */
gpg_error_t
wks_filter_uid (estream_t *r_newkey, estream_t key, const char *uid,
int binary)
{
gpg_error_t err;
ccparray_t ccp;
const char **argv = NULL;
estream_t newkey;
char *filterexp = NULL;
*r_newkey = NULL;
/* Open a memory stream. */
newkey = es_fopenmem (0, "w+b");
if (!newkey)
{
err = gpg_error_from_syserror ();
log_error ("error allocating memory buffer: %s\n", gpg_strerror (err));
return err;
}
/* Prefix the key with the MIME content type. */
if (!binary)
es_fputs ("Content-Type: application/pgp-keys\n"
"\n", newkey);
filterexp = es_bsprintf ("keep-uid=uid=%s", uid);
if (!filterexp)
{
err = gpg_error_from_syserror ();
log_error ("error allocating memory buffer: %s\n", gpg_strerror (err));
goto leave;
}
ccparray_init (&ccp, 0);
ccparray_put (&ccp, "--no-options");
if (!opt.verbose)
ccparray_put (&ccp, "--quiet");
else if (opt.verbose > 1)
ccparray_put (&ccp, "--verbose");
ccparray_put (&ccp, "--batch");
ccparray_put (&ccp, "--status-fd=2");
ccparray_put (&ccp, "--always-trust");
if (!binary)
ccparray_put (&ccp, "--armor");
ccparray_put (&ccp, "--import-options=import-export");
ccparray_put (&ccp, "--import-filter");
ccparray_put (&ccp, filterexp);
ccparray_put (&ccp, "--import");
ccparray_put (&ccp, NULL);
argv = ccparray_get (&ccp, NULL);
if (!argv)
{
err = gpg_error_from_syserror ();
goto leave;
}
err = gnupg_exec_tool_stream (opt.gpg_program, argv, key,
NULL, newkey,
key_status_cb, NULL);
if (err)
{
log_error ("import/export failed: %s\n", gpg_strerror (err));
goto leave;
}
es_rewind (newkey);
*r_newkey = newkey;
newkey = NULL;
leave:
xfree (filterexp);
xfree (argv);
es_fclose (newkey);
return err;
}
/* Run gpg on KEY and store the primary fingerprint at R_FPR and the
* list of mailboxes at R_MBOXES. Returns 0 on success; on error NULL
* is stored at R_FPR and R_MBOXES and an error code is returned.
* R_FPR may be NULL if the fingerprint is not needed. */
gpg_error_t
wks_list_key (estream_t key, char **r_fpr, uidinfo_list_t *r_mboxes)
{
gpg_error_t err;
ccparray_t ccp;
const char **argv;
estream_t listing;
char *line = NULL;
size_t length_of_line = 0;
size_t maxlen;
ssize_t len;
char **fields = NULL;
int nfields;
int lnr;
char *fpr = NULL;
uidinfo_list_t mboxes = NULL;
if (r_fpr)
*r_fpr = NULL;
*r_mboxes = NULL;
/* Open a memory stream. */
listing = es_fopenmem (0, "w+b");
if (!listing)
{
err = gpg_error_from_syserror ();
log_error ("error allocating memory buffer: %s\n", gpg_strerror (err));
return err;
}
ccparray_init (&ccp, 0);
ccparray_put (&ccp, "--no-options");
if (!opt.verbose)
ccparray_put (&ccp, "--quiet");
else if (opt.verbose > 1)
ccparray_put (&ccp, "--verbose");
ccparray_put (&ccp, "--batch");
ccparray_put (&ccp, "--status-fd=2");
ccparray_put (&ccp, "--always-trust");
ccparray_put (&ccp, "--with-colons");
ccparray_put (&ccp, "--dry-run");
ccparray_put (&ccp, "--import-options=import-minimal,import-show");
ccparray_put (&ccp, "--import");
ccparray_put (&ccp, NULL);
argv = ccparray_get (&ccp, NULL);
if (!argv)
{
err = gpg_error_from_syserror ();
goto leave;
}
err = gnupg_exec_tool_stream (opt.gpg_program, argv, key,
NULL, listing,
key_status_cb, NULL);
if (err)
{
log_error ("import failed: %s\n", gpg_strerror (err));
goto leave;
}
es_rewind (listing);
lnr = 0;
maxlen = 2048; /* Set limit. */
while ((len = es_read_line (listing, &line, &length_of_line, &maxlen)) > 0)
{
lnr++;
if (!maxlen)
{
log_error ("received line too long\n");
err = gpg_error (GPG_ERR_LINE_TOO_LONG);
goto leave;
}
/* Strip newline and carriage return, if present. */
while (len > 0
&& (line[len - 1] == '\n' || line[len - 1] == '\r'))
line[--len] = '\0';
/* log_debug ("line '%s'\n", line); */
xfree (fields);
fields = strtokenize (line, ":");
if (!fields)
{
err = gpg_error_from_syserror ();
log_error ("strtokenize failed: %s\n", gpg_strerror (err));
goto leave;
}
for (nfields = 0; fields[nfields]; nfields++)
;
if (!nfields)
{
err = gpg_error (GPG_ERR_INV_ENGINE);
goto leave;
}
if (!strcmp (fields[0], "sec"))
{
/* gpg may return "sec" as the first record - but we do not
* accept secret keys. */
err = gpg_error (GPG_ERR_NO_PUBKEY);
goto leave;
}
if (lnr == 1 && strcmp (fields[0], "pub"))
{
/* First record is not a public key. */
err = gpg_error (GPG_ERR_INV_ENGINE);
goto leave;
}
if (lnr > 1 && !strcmp (fields[0], "pub"))
{
/* More than one public key. */
err = gpg_error (GPG_ERR_TOO_MANY);
goto leave;
}
if (!strcmp (fields[0], "sub") || !strcmp (fields[0], "ssb"))
break; /* We can stop parsing here. */
if (!strcmp (fields[0], "fpr") && nfields > 9 && !fpr)
{
fpr = xtrystrdup (fields[9]);
if (!fpr)
{
err = gpg_error_from_syserror ();
goto leave;
}
}
else if (!strcmp (fields[0], "uid") && nfields > 9)
{
/* Fixme: Unescape fields[9] */
if (!append_to_uidinfo_list (&mboxes, fields[9],
parse_timestamp (fields[5], NULL)))
{
err = gpg_error_from_syserror ();
goto leave;
}
}
}
if (len < 0 || es_ferror (listing))
{
err = gpg_error_from_syserror ();
log_error ("error reading memory stream\n");
goto leave;
}
if (!fpr)
{
err = gpg_error (GPG_ERR_NO_PUBKEY);
goto leave;
}
if (r_fpr)
{
*r_fpr = fpr;
fpr = NULL;
}
*r_mboxes = mboxes;
mboxes = NULL;
leave:
xfree (fpr);
free_uidinfo_list (mboxes);
xfree (fields);
es_free (line);
xfree (argv);
es_fclose (listing);
return err;
}
/* Get a key by fingerprint from gpg's keyring and make sure that the
* mail address ADDRSPEC is included in the key. If EXACT is set the
* returned user id must match Addrspec exactly and not just in the
* addr-spec (mailbox) part. The key is returned as a new memory
* stream at R_KEY. */
gpg_error_t
wks_get_key (estream_t *r_key, const char *fingerprint, const char *addrspec,
int exact)
{
gpg_error_t err;
ccparray_t ccp;
const char **argv = NULL;
estream_t key = NULL;
struct get_key_status_parm_s parm;
char *filterexp = NULL;
memset (&parm, 0, sizeof parm);
*r_key = NULL;
key = es_fopenmem (0, "w+b");
if (!key)
{
err = gpg_error_from_syserror ();
log_error ("error allocating memory buffer: %s\n", gpg_strerror (err));
goto leave;
}
/* Prefix the key with the MIME content type. */
es_fputs ("Content-Type: application/pgp-keys\n"
"\n", key);
filterexp = es_bsprintf ("keep-uid=%s=%s", exact? "uid":"mbox", addrspec);
if (!filterexp)
{
err = gpg_error_from_syserror ();
log_error ("error allocating memory buffer: %s\n", gpg_strerror (err));
goto leave;
}
ccparray_init (&ccp, 0);
ccparray_put (&ccp, "--no-options");
if (!opt.verbose)
ccparray_put (&ccp, "--quiet");
else if (opt.verbose > 1)
ccparray_put (&ccp, "--verbose");
ccparray_put (&ccp, "--batch");
ccparray_put (&ccp, "--status-fd=2");
ccparray_put (&ccp, "--always-trust");
ccparray_put (&ccp, "--armor");
ccparray_put (&ccp, "--export-options=export-minimal");
ccparray_put (&ccp, "--export-filter");
ccparray_put (&ccp, filterexp);
ccparray_put (&ccp, "--export");
ccparray_put (&ccp, "--");
ccparray_put (&ccp, fingerprint);
ccparray_put (&ccp, NULL);
argv = ccparray_get (&ccp, NULL);
if (!argv)
{
err = gpg_error_from_syserror ();
goto leave;
}
parm.fpr = fingerprint;
err = gnupg_exec_tool_stream (opt.gpg_program, argv, NULL,
NULL, key,
get_key_status_cb, &parm);
if (!err && parm.count > 1)
err = gpg_error (GPG_ERR_TOO_MANY);
else if (!err && !parm.found)
err = gpg_error (GPG_ERR_NOT_FOUND);
if (err)
{
log_error ("export failed: %s\n", gpg_strerror (err));
goto leave;
}
es_rewind (key);
*r_key = key;
key = NULL;
leave:
es_fclose (key);
xfree (argv);
xfree (filterexp);
return err;
}
