When apply_filter() runs the external (clean or smudge) filter program, it
needs to pass the writable end of a pipe as its stdout. For this purpose,
it used to dup2(2) the file descriptor explicitly to stdout. Now we use
the facilities of start_command() to do it for us.
Furthermore, the path argument of a subordinate function, filter_buffer(),
was not used, so here we replace it to pass the fd instead.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
---
convert.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/convert.c b/convert.c
index 6d64994..c870817 100644
--- a/convert.c
+++ b/convert.c
@@ -201,7 +201,7 @@ static char *crlf_to_worktree(const char *path, const char *src, unsigned long *
return buffer;
}
-static int filter_buffer(const char *path, const char *src,
+static int filter_buffer(int fd, const char *src,
unsigned long size, const char *cmd)
{
/*
@@ -214,6 +214,7 @@ static int filter_buffer(const char *path, const char *src,
memset(&child_process, 0, sizeof(child_process));
child_process.argv = argv;
child_process.in = -1;
+ child_process.out = fd;
if (start_command(&child_process))
return error("cannot fork to run external filter %s", cmd);
@@ -265,10 +266,8 @@ static char *apply_filter(const char *path, const char *src,
return NULL;
}
if (!child_process.pid) {
- dup2(pipe_feed[1], 1);
close(pipe_feed[0]);
- close(pipe_feed[1]);
- exit(filter_buffer(path, src, *sizep, cmd));
+ exit(filter_buffer(pipe_feed[1], src, *sizep, cmd));
}
close(pipe_feed[1]);
--
1.5.3.3.1134.gee562
-
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