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common: Allow a second input stream for gnupg_exec_tool_stream.

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* common/exechelp-posix.c (do_exec): Add arg 'except' and pass to
close_all_fds.
(gnupg_spawn_process): Add arg 'except'.  Change callers to pass NULL
for it.
* common/exechelp-w32.c (gnupg_spawn_process): Add dummy arg 'except'.
* common/exechelp-w32ce.c (gnupg_spawn_process): Ditto.
* common/exectool.c (copy_buffer_do_copy): Allow NULL for SINK.
(gnupg_exec_tool_stream): Add arg 'inextra'. Change callers to pass
NULL for it.  Allow NULL for OUTPUT.
--

This hack is a first step to allow calling gpg for verification of
signatures.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-05-27 22:48:04 +02:00
parent e6d9a2d07e
commit 44a32455c8
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
10 changed files with 124 additions and 36 deletions
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6
common/exechelp.h
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@ -90,6 +90,10 @@ gpg_error_t gnupg_create_pipe (int filedes[2]);
If PREEXEC is not NULL, the given function will be called right
before the exec.
IF EXCEPT is not NULL, it is expected to be an ordered list of file
descriptors, terminated by an entry with the value (-1). These
file descriptors won't be closed before spawning a new program.
Returns 0 on success or an error code. Calling gnupg_wait_process
and gnupg_release_process is required if the function succeeded.
@ -116,7 +120,7 @@ gpg_error_t gnupg_create_pipe (int filedes[2]);
*/
gpg_error_t
gnupg_spawn_process (const char *pgmname, const char *argv[],
void (*preexec)(void), unsigned int flags,
int *execpt, void (*preexec)(void), unsigned int flags,
estream_t *r_infp,
estream_t *r_outfp,
estream_t *r_errfp,