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-rw-r--r--include/usage.src.h21
-rw-r--r--networking/netstat.c78
2 files changed, 50 insertions, 49 deletions
diff --git a/include/usage.src.h b/include/usage.src.h
index f5ddd7b..2f44eaf 100644
--- a/include/usage.src.h
+++ b/include/usage.src.h
@@ -2721,27 +2721,6 @@ INSERT
" or\n" \
"$ nameif -c /etc/my_mactab_file\n" \
-#define netstat_trivial_usage \
- "[-laentuwxr"IF_FEATURE_NETSTAT_WIDE("W")IF_FEATURE_NETSTAT_PRG("p")"]"
-#define netstat_full_usage "\n\n" \
- "Display networking information\n" \
- "\nOptions:" \
- "\n -l Display listening server sockets" \
- "\n -a Display all sockets (default: connected)" \
- "\n -e Display other/more information" \
- "\n -n Don't resolve names" \
- "\n -t Tcp sockets" \
- "\n -u Udp sockets" \
- "\n -w Raw sockets" \
- "\n -x Unix sockets" \
- "\n -r Display routing table" \
- IF_FEATURE_NETSTAT_WIDE( \
- "\n -W Display with no column truncation" \
- ) \
- IF_FEATURE_NETSTAT_PRG( \
- "\n -p Display PID/Program name for sockets" \
- )
-
#define nmeter_trivial_usage \
"format_string"
#define nmeter_full_usage "\n\n" \
diff --git a/networking/netstat.c b/networking/netstat.c
index 3114a39..4fd8728 100644
--- a/networking/netstat.c
+++ b/networking/netstat.c
@@ -17,16 +17,37 @@
#include "libbb.h"
#include "inet_common.h"
+//usage:#define netstat_trivial_usage
+//usage: "[-"IF_ROUTE("r")"al] [-tuwx] [-en"IF_FEATURE_NETSTAT_WIDE("W")IF_FEATURE_NETSTAT_PRG("p")"]"
+//usage:#define netstat_full_usage "\n\n"
+//usage: "Display networking information\n"
+//usage: "\nOptions:"
+//usage: IF_ROUTE(
+//usage: "\n -r Routing table"
+//usage: )
+//usage: "\n -a All sockets"
+//usage: "\n -l Listening sockets"
+//usage: "\n Else: connected sockets"
+//usage: "\n -t TCP sockets"
+//usage: "\n -u UDP sockets"
+//usage: "\n -w Raw sockets"
+//usage: "\n -x Unix sockets"
+//usage: "\n Else: all socket types"
+//usage: "\n -e Other/more information"
+//usage: "\n -n Don't resolve names"
+//usage: IF_FEATURE_NETSTAT_WIDE(
+//usage: "\n -W Wide display"
+//usage: )
+//usage: IF_FEATURE_NETSTAT_PRG(
+//usage: "\n -p Show PID/program name for sockets"
+//usage: )
+
#define NETSTAT_OPTS "laentuwx" \
IF_ROUTE( "r") \
IF_FEATURE_NETSTAT_WIDE("W") \
IF_FEATURE_NETSTAT_PRG( "p")
enum {
- OPTBIT_KEEP_OLD = 7,
- IF_ROUTE( OPTBIT_ROUTE,)
- IF_FEATURE_NETSTAT_WIDE(OPTBIT_WIDE ,)
- IF_FEATURE_NETSTAT_PRG( OPTBIT_PRG ,)
OPT_sock_listen = 1 << 0, // l
OPT_sock_all = 1 << 1, // a
OPT_extended = 1 << 2, // e
@@ -35,6 +56,10 @@ enum {
OPT_sock_udp = 1 << 5, // u
OPT_sock_raw = 1 << 6, // w
OPT_sock_unix = 1 << 7, // x
+ OPTBIT_x = 7,
+ IF_ROUTE( OPTBIT_ROUTE,)
+ IF_FEATURE_NETSTAT_WIDE(OPTBIT_WIDE ,)
+ IF_FEATURE_NETSTAT_PRG( OPTBIT_PRG ,)
OPT_route = IF_ROUTE( (1 << OPTBIT_ROUTE)) + 0, // r
OPT_wide = IF_FEATURE_NETSTAT_WIDE((1 << OPTBIT_WIDE )) + 0, // W
OPT_prg = IF_FEATURE_NETSTAT_PRG( (1 << OPTBIT_PRG )) + 0, // p
@@ -220,7 +245,7 @@ static long extract_socket_inode(const char *lname)
static int FAST_FUNC file_act(const char *fileName,
struct stat *statbuf UNUSED_PARAM,
- void *userData,
+ void *pid_slash_progname,
int depth UNUSED_PARAM)
{
char *linkname;
@@ -231,7 +256,7 @@ static int FAST_FUNC file_act(const char *fileName,
inode = extract_socket_inode(linkname);
free(linkname);
if (inode >= 0)
- prg_cache_add(inode, (char *)userData);
+ prg_cache_add(inode, (char *)pid_slash_progname);
}
return TRUE;
}
@@ -241,16 +266,16 @@ static int FAST_FUNC dir_act(const char *fileName,
void *userData UNUSED_PARAM,
int depth)
{
- const char *shortName;
- char *p, *q;
+ const char *pid;
+ char *p, *pid_slash_progname;
char cmdline_buf[512];
int i;
if (depth == 0) /* "/proc" itself */
return TRUE; /* continue looking one level below /proc */
- shortName = fileName + sizeof("/proc/")-1; /* point after "/proc/" */
- if (!isdigit(shortName[0])) /* skip /proc entries whic aren't processes */
+ pid = fileName + sizeof("/proc/")-1; /* point after "/proc/" */
+ if (!isdigit(pid[0])) /* skip /proc entries which aren't processes */
return SKIP;
p = concat_path_file(fileName, "cmdline"); /* "/proc/PID/cmdline" */
@@ -259,20 +284,19 @@ static int FAST_FUNC dir_act(const char *fileName,
if (i < 0)
return FALSE;
cmdline_buf[i] = '\0';
- q = concat_path_file(shortName, bb_basename(cmdline_buf)); /* "PID/argv0" */
/* go through all files in /proc/PID/fd */
+ pid_slash_progname = concat_path_file(pid, bb_basename(cmdline_buf)); /* "PID/argv0" */
p = concat_path_file(fileName, "fd");
i = recursive_action(p, ACTION_RECURSE | ACTION_QUIET,
- file_act, NULL, (void *)q, 0);
-
+ file_act, NULL, (void *)pid_slash_progname, 0);
free(p);
- free(q);
+ free(pid_slash_progname);
if (!i)
- return FALSE; /* signal permissions error to caller */
+ return FALSE; /* signal permissions error to caller */
- return SKIP; /* caller should not recurse further into this dir. */
+ return SKIP; /* caller should not recurse further into this dir */
}
static void prg_cache_load(void)
@@ -624,25 +648,23 @@ int netstat_main(int argc UNUSED_PARAM, char **argv)
/* Option string must match NETSTAT_xxx constants */
opt = getopt32(argv, NETSTAT_OPTS);
- if (opt & 0x1) { // -l
+ if (opt & OPT_sock_listen) { // -l
flags &= ~NETSTAT_CONNECTED;
flags |= NETSTAT_LISTENING;
}
- if (opt & 0x2) flags |= NETSTAT_LISTENING | NETSTAT_CONNECTED; // -a
- //if (opt & 0x4) // -e
- if (opt & 0x8) flags |= NETSTAT_NUMERIC; // -n
- //if (opt & 0x10) // -t: NETSTAT_TCP
- //if (opt & 0x20) // -u: NETSTAT_UDP
- //if (opt & 0x40) // -w: NETSTAT_RAW
- //if (opt & 0x80) // -x: NETSTAT_UNIX
- if (opt & OPT_route) { // -r
+ if (opt & OPT_sock_all) flags |= NETSTAT_LISTENING | NETSTAT_CONNECTED; // -a
+ //if (opt & OPT_extended) // -e
+ if (opt & OPT_noresolve) flags |= NETSTAT_NUMERIC; // -n
+ //if (opt & OPT_sock_tcp) // -t: NETSTAT_TCP
+ //if (opt & OPT_sock_udp) // -u: NETSTAT_UDP
+ //if (opt & OPT_sock_raw) // -w: NETSTAT_RAW
+ //if (opt & OPT_sock_unix) // -x: NETSTAT_UNIX
#if ENABLE_ROUTE
+ if (opt & OPT_route) { // -r
bb_displayroutes(flags & NETSTAT_NUMERIC, !(opt & OPT_extended));
return 0;
-#else
- bb_show_usage();
-#endif
}
+#endif
if (opt & OPT_wide) { // -W
net_conn_line = PRINT_NET_CONN_WIDE;
net_conn_line_header = PRINT_NET_CONN_HEADER_WIDE;
generated by cgit v1.1 at 2024-12-26 04:42:52 +0000