[RFC PATCH 1/1] add --stderr option
Tomi Ollila
tomi.ollila at iki.fi
Tue May 21 11:42:30 PDT 2013
---
Note quickly written untested code (but compiles!), just to show an idea...
This implements (i hope) curl(1) --stderr option in notmuch(1):
--stderr <file>
Redirect all writes to stderr to the specified file instead. If
the file name is a plain '-', it is instead written to stdout.
This would be useful in emacs interface.
Please comment; I'll do help and manual page changes (and NEWS) if
this is good idea :D
Tomi
notmuch.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/notmuch.c b/notmuch.c
index f51a84f..3b8bd5d 100644
--- a/notmuch.c
+++ b/notmuch.c
@@ -21,6 +21,7 @@
*/
#include "notmuch-client.h"
+#include <fcntl.h>
typedef int (*command_function_t) (notmuch_config_t *config, int argc, char *argv[]);
@@ -259,6 +260,7 @@ main (int argc, char *argv[])
const char *command_name = NULL;
command_t *command;
char *config_file_name = NULL;
+ char *stderr_file = NULL;
notmuch_config_t *config;
notmuch_bool_t print_help=FALSE, print_version=FALSE;
int opt_index;
@@ -268,6 +270,7 @@ main (int argc, char *argv[])
{ NOTMUCH_OPT_BOOLEAN, &print_help, "help", 'h', 0 },
{ NOTMUCH_OPT_BOOLEAN, &print_version, "version", 'v', 0 },
{ NOTMUCH_OPT_STRING, &config_file_name, "config", 'c', 0 },
+ { NOTMUCH_OPT_STRING, &stderr_file, "stderr", 'c', 0 },
{ 0, 0, 0, 0, 0 }
};
@@ -295,6 +298,23 @@ main (int argc, char *argv[])
return 0;
}
+ if (stderr_file) {
+ if (strcmp (stderr_file, "-") == 0)
+ dup2 (STDOUT_FILENO, STDERR_FILENO);
+ else {
+ int fd = open (stderr_file, O_WRONLY|O_CREAT|O_APPEND, 0644);
+ if (fd < 0) {
+ fprintf (stderr, "Error: Cannot redirect stderr to '%s': %s\n",
+ stderr_file, strerror(errno));
+ return 1;
+ }
+ if (fd != STDERR_FILENO) {
+ dup2 (fd, STDERR_FILENO);
+ close (fd);
+ }
+ }
+ }
+
if (opt_index < argc)
command_name = argv[opt_index];
--
1.8.1.4
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