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Reworked the posix and w32 exechelpers.

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This commit is contained in:
Werner Koch 2010-08-20 12:18:38 +00:00
parent be9c4748d0
commit 15330f36a7
13 changed files with 831 additions and 229 deletions
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39
common/exechelp.h
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@ -52,15 +52,24 @@ gpg_error_t gnupg_create_inbound_pipe (int filedes[2]);
gpg_error_t gnupg_create_outbound_pipe (int filedes[2]);
/* Fork and exec the PGMNAME, connect the file descriptor of INFILE to
stdin, write the output to OUTFILE. INFILE or PUTFILE may be NULL
to connect thenm to /dev/null. Returns a new stream in STATUSFILE
for stderr and the pid of the process in PID. The arguments for the
process are expected in the NULL terminated array ARGV. The
program name itself should not be included there. If PREEXEC is
not NULL, that function will be called right before the exec.
Calling gnupg_wait_process and gnupg_release_process is required.
Returns 0 on success or an error code.
/* Fork and exec the PGMNAME. If INFP is NULL connect /dev/null to
stdin of the new process; if it is not NULL connect the file
descriptor retrieved from INFP to stdin. If R_OUTFP is NULL
connect stdout of the new process to /dev/null; if it is not NULL
store the address of a pointer to a new estream there. If R_ERRFP
is NULL connect stderr of the new process to /dev/null; if it is
not NULL store the address of a pointer to a new estream there. On
success the pid of the new process is stored at PID. On error -1
is stored at PID and if R_OUTFP or R_ERRFP are not NULL, NULL is
stored there.
The arguments for the process are expected in the NULL terminated
array ARGV. The program name itself should not be included there.
If PREEXEC is not NULL, the given function will be called right
before the exec.
Returns 0 on success or an error code. Calling gnupg_wait_process
and gnupg_release_process is required if the function succeeded.
FLAGS is a bit vector:
@ -74,10 +83,14 @@ gpg_error_t gnupg_create_outbound_pipe (int filedes[2]);
allows SetForegroundWindow for all childs of this process.
*/
gpg_error_t gnupg_spawn_process (const char *pgmname, const char *argv[],
estream_t infile, estream_t outfile,
void (*preexec)(void), unsigned int flags,
estream_t *statusfile, pid_t *pid);
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);
/* Simplified version of gnupg_spawn_process. This function forks and