With this patch, in the 'start_command' function after forking
we now take care of stderr in the child process before stdout.
This way if 'start_command' is called with a 'child_process'
argument like this:
.err = -1;
.stdout_to_stderr = 1;
then stderr will be redirected to a pipe before stdout is
redirected to stderr. So we can now get the process' stdout
from the pipe (as well as its stderr).
Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
---
run-command.c | 14 +++++++-------
1 files changed, 7 insertions(+), 7 deletions(-)
This patch should make my previous patch:
[PATCH 1/2] help: add "man.viewer" config var to use "woman" or "konqueror"
work as expected (at least with Emacs 21 and 22).
diff --git a/run-command.c b/run-command.c
index 743757c..44100a7 100644
--- a/run-command.c
+++ b/run-command.c
@@ -91,6 +91,13 @@ int start_command(struct child_process *cmd)
close(cmd->in);
}
+ if (cmd->no_stderr)
+ dup_devnull(2);
+ else if (need_err) {
+ dup2(fderr[1], 2);
+ close_pair(fderr);
+ }
+
if (cmd->no_stdout)
dup_devnull(1);
else if (cmd->stdout_to_stderr)
@@ -103,13 +110,6 @@ int start_command(struct child_process *cmd)
close(cmd->out);
}
- if (cmd->no_stderr)
- dup_devnull(2);
- else if (need_err) {
- dup2(fderr[1], 2);
- close_pair(fderr);
- }
-
if (cmd->dir && chdir(cmd->dir))
die("exec %s: cd to %s failed (%s)", cmd->argv[0],
cmd->dir, strerror(errno));
--
1.5.4.3.395.g492b.dirty
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