wireshark/wireshark-0002-Customize-permission-denied-error.patch
Peter Lemenkov 5579c45ac7 Bugfixes and enhancements
- Convert automake/pkgconfig files into patches (better upstream integration)
- Restored category in the *.desktop file
- Install another one necessary header file - frame_data_sequence.h

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
2013-09-13 16:52:45 +04:00

65 lines
2.9 KiB
Diff

From a6168e1f1bdb639c0ffd15a5f4eed864814e0bce Mon Sep 17 00:00:00 2001
From: Jan Safranek <jsafrane@redhat.com>
Date: Fri, 26 Nov 2010 14:30:45 +0300
Subject: [PATCH 02/11] Customize 'permission denied' error.
Add Fedora-specific message to error output when dumpcap cannot be started
because of permissions.
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
---
capture_sync.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/capture_sync.c b/capture_sync.c
index 391aa6a..6dfe1de 100644
--- a/capture_sync.c
+++ b/capture_sync.c
@@ -368,6 +368,7 @@ sync_pipe_start(capture_options *capture_opts, capture_session *cap_session)
gchar *signal_pipe_name;
#else
char errmsg[1024+1];
+ const char *securitymsg = "";
int sync_pipe[2]; /* pipe used to send messages from child to parent */
enum PIPES { PIPE_READ, PIPE_WRITE }; /* Constants 0 and 1 for PIPE_READ and PIPE_WRITE */
#endif
@@ -638,8 +639,11 @@ sync_pipe_start(capture_options *capture_opts, capture_session *cap_session)
dup2(sync_pipe[PIPE_WRITE], 2);
ws_close(sync_pipe[PIPE_READ]);
execv(argv[0], argv);
- g_snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s",
- argv[0], g_strerror(errno));
+ if (errno == EPERM || errno == EACCES)
+ securitymsg = "\nAre you a member of the 'wireshark' group? Try running\n'usermod -a -G wireshark _your_username_' as root.";
+ g_snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s%s",
+ argv[0], g_strerror(errno), securitymsg);
+
sync_pipe_errmsg_to_parent(2, errmsg, "");
/* Exit with "_exit()", so that we don't close the connection
@@ -731,6 +735,7 @@ sync_pipe_open_command(char** argv, int *data_read_fd,
PROCESS_INFORMATION pi;
#else
char errmsg[1024+1];
+ const char *securitymsg = "";
int sync_pipe[2]; /* pipe used to send messages from child to parent */
int data_pipe[2]; /* pipe used to send data from child to parent */
#endif
@@ -865,8 +870,11 @@ sync_pipe_open_command(char** argv, int *data_read_fd,
ws_close(sync_pipe[PIPE_READ]);
ws_close(sync_pipe[PIPE_WRITE]);
execv(argv[0], argv);
- g_snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s",
- argv[0], g_strerror(errno));
+ execv(argv[0], (gpointer)argv);
+ if (errno == EPERM || errno == EACCES)
+ securitymsg = "\nAre you a member of the 'wireshark' group? Try running\n'usermod -a -G wireshark _your_username_' as root.";
+ g_snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s%s",
+ argv[0], g_strerror(errno), securitymsg);
sync_pipe_errmsg_to_parent(2, errmsg, "");
/* Exit with "_exit()", so that we don't close the connection
--
1.8.3.1