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posix: Fix for spawn_cb.

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--

Fixes: 7571fd4cd02571ddd0ba84700c0a52704f0a9b5c
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2022-11-28 09:43:24 +09:00
parent 7571fd4cd0
commit 60b6cfe71f
No known key found for this signature in database
GPG Key ID: 640114AF89DE6054
3 changed files with 11 additions and 8 deletions
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8
common/exechelp-posix.c
View File

@ -1000,11 +1000,12 @@ my_exec (const char *pgmname, const char *argv[],
sca.fds[0] = fd_in;
sca.fds[1] = fd_out;
sca.fds[2] = fd_err;
sca.except_fds = NULL;
sca.arg = spawn_cb_arg;
/* Assign /dev/null to unused FDs. */
for (i = 0; i <= 2; i++)
if (fds[i] == -1)
if (sca.fds[i] == -1)
sca.fds[i] = posix_open_null (i);
if (spawn_cb)
@ -1022,7 +1023,7 @@ my_exec (const char *pgmname, const char *argv[],
/* Close all other files. */
if (!ask_inherit)
close_all_fds (3, NULL);
close_all_fds (3, sca.except_fds);
execv (pgmname, (char *const *)argv);
/* No way to print anything, as we have may have closed all streams. */
@ -1106,7 +1107,8 @@ spawn_detached (gnupg_process_t process,
gpg_err_code_t
gnupg_process_spawn (const char *pgmname, const char *argv1[],
unsigned int flags,
int (*spawn_cb) (void *), void *spawn_cb_arg,
int (*spawn_cb) (struct spawn_cb_arg *),
void *spawn_cb_arg,
gnupg_process_t *r_process)
{
gpg_err_code_t ec;

1
common/exechelp.h
View File

@ -222,6 +222,7 @@ struct spawn_cb_arg {
#else
struct spawn_cb_arg {
int fds[3];
int *except_fds;
void *arg;
};
#endif

10
common/exectool.c
View File

@ -302,12 +302,12 @@ copy_buffer_flush (struct copy_buffer *c, estream_t sink)
static int
close_all_except (void *arg)
setup_close_all (struct spawn_cb_arg *sca)
{
int *exceptclose = arg;
int *user_except = sca->arg;
close_all_fds (3, exceptclose);
return 1;
sca->except_fds = user_except;
return 0;
}
/* Run the program PGMNAME with the command line arguments given in
@ -424,7 +424,7 @@ gnupg_exec_tool_stream (const char *pgmname, const char *argv[],
: GNUPG_PROCESS_STDIN_NULL)
| GNUPG_PROCESS_STDOUT_PIPE
| GNUPG_PROCESS_STDERR_PIPE),
close_all_except, exceptclose, &proc);
setup_close_all, exceptclose, &proc);
gnupg_process_get_streams (proc, GNUPG_PROCESS_STREAM_NONBLOCK,
input? &infp : NULL, &outfp, &errfp);
if (extrapipe[0] != -1)