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Date: Fri, 13 Feb 2015 22:14:03 +0200
From: Vadim Kochan <vadim4j@...il.com>
To: netdev@...r.kernel.org
Cc: Vadim Kochan <vadim4j@...il.com>
Subject: [PATCH iproute2 6/7] ss: Unify socket address output by one generic func
From: Vadim Kochan <vadim4j@...il.com>
Signed-off-by: Vadim Kochan <vadim4j@...il.com>
---
include/utils.h | 2 +
lib/utils.c | 6 +++
misc/ss.c | 124 ++++++++++++++++++++++++++++++++------------------------
3 files changed, 80 insertions(+), 52 deletions(-)
diff --git a/include/utils.h b/include/utils.h
index 3da2283..fec9ef4 100644
--- a/include/utils.h
+++ b/include/utils.h
@@ -167,4 +167,6 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req,
extern int do_each_netns(int (*func)(char *nsname, void *arg), void *arg,
bool show_label);
+char *int_to_str(int val, char *buf);
+
#endif /* __UTILS_H__ */
diff --git a/lib/utils.c b/lib/utils.c
index efebe18..e2b05bc 100644
--- a/lib/utils.c
+++ b/lib/utils.c
@@ -906,3 +906,9 @@ int do_each_netns(int (*func)(char *nsname, void *arg), void *arg,
return netns_foreach(on_netns, &nsf);
}
+
+char *int_to_str(int val, char *buf)
+{
+ sprintf(buf, "%d", val);
+ return buf;
+}
diff --git a/misc/ss.c b/misc/ss.c
index 905cec9..9cf0055 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -789,6 +789,24 @@ static void sock_details_print(struct sockstat *s)
printf(" sk:%llx", s->sk);
}
+static void sock_addr_print_width(int addr_len, const char *addr, char *delim,
+ int port_len, const char *port, const char *ifname)
+{
+ if (ifname) {
+ printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim,
+ port_len, port);
+ }
+ else {
+ printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port);
+ }
+}
+
+static void sock_addr_print(const char *addr, char *delim, const char *port,
+ const char *ifname)
+{
+ sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname);
+}
+
static const char *tmr_name[] = {
"off",
"on",
@@ -971,13 +989,12 @@ static const char *resolve_service(int port)
return buf;
}
-static void formatted_print(const inet_prefix *a, int port, unsigned int ifindex)
+static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex)
{
char buf[1024];
const char *ap = buf;
- int est_len;
-
- est_len = addr_width;
+ int est_len = addr_width;
+ const char *ifname = NULL;
if (a->family == AF_INET) {
if (a->data[0] == 0) {
@@ -994,14 +1011,14 @@ static void formatted_print(const inet_prefix *a, int port, unsigned int ifindex
else
est_len = addr_width + ((est_len-addr_width+3)/4)*4;
}
+
if (ifindex) {
- const char *ifname = ll_index_to_name(ifindex);
- const int len = strlen(ifname) + 1; /* +1 for percent char */
+ ifname = ll_index_to_name(ifindex);
+ est_len -= strlen(ifname) + 1; /* +1 for percent char */
+ }
- printf("%*s%%%s:%-*s ", est_len - len, ap, ifname, serv_width,
- resolve_service(port));
- } else
- printf("%*s:%-*s ", est_len, ap, serv_width, resolve_service(port));
+ sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
+ ifname);
}
struct aafilter
@@ -1533,8 +1550,8 @@ static void inet_stats_print(struct sockstat *s, int protocol)
sock_state_print(s, proto_name(protocol));
- formatted_print(&s->local, s->lport, s->iface);
- formatted_print(&s->remote, s->rport, 0);
+ inet_addr_print(&s->local, s->lport, s->iface);
+ inet_addr_print(&s->remote, s->rport, 0);
if (show_proc_ctx || show_sock_ctx) {
if (find_entry(s->ino, &buf,
@@ -2490,7 +2507,9 @@ static void unix_stats_print(struct sockstat *list, struct filter *f)
{
struct sockstat *s;
char *local, *peer;
+ char *ctx_buf = NULL;
bool use_proc = unix_use_proc();
+ char port_name[30] = {};
for (s = list; s; s = s->next) {
if (!(f->states & (1 << s->state)))
@@ -2529,22 +2548,22 @@ static void unix_stats_print(struct sockstat *list, struct filter *f)
sock_state_print(s, unix_netid_name(s->type));
- printf("%*s %-*d %*s %-*d",
- addr_width, local ? : "*", serv_width,
- s->lport, addr_width, peer, serv_width, s->rport);
- char *buf = NULL;
+ sock_addr_print(local ?: "*", " ",
+ int_to_str(s->lport, port_name), NULL);
+ sock_addr_print(peer, " ", int_to_str(s->rport, port_name),
+ NULL);
if (show_proc_ctx || show_sock_ctx) {
- if (find_entry(s->ino, &buf,
+ if (find_entry(s->ino, &ctx_buf,
(show_proc_ctx & show_sock_ctx) ?
PROC_SOCK_CTX : PROC_CTX) > 0) {
- printf(" users:(%s)", buf);
- free(buf);
+ printf(" users:(%s)", ctx_buf);
+ free(ctx_buf);
}
} else if (show_users) {
- if (find_entry(s->ino, &buf, USERS) > 0) {
- printf(" users:(%s)", buf);
- free(buf);
+ if (find_entry(s->ino, &ctx_buf, USERS) > 0) {
+ printf(" users:(%s)", ctx_buf);
+ free(ctx_buf);
}
}
printf("\n");
@@ -2734,6 +2753,8 @@ static int unix_show(struct filter *f)
static int packet_stats_print(struct sockstat *s, const struct filter *f)
{
char *buf = NULL;
+ const char *addr, *port;
+ char ll_name[16];
if (f->f) {
s->local.family = AF_PACKET;
@@ -2745,20 +2766,18 @@ static int packet_stats_print(struct sockstat *s, const struct filter *f)
sock_state_print(s, s->type == SOCK_RAW ? "p_raw" : "p_dgr");
- if (s->prot == 3) {
- printf("%*s:", addr_width, "*");
- } else {
- char tb[16];
- printf("%*s:", addr_width,
- ll_proto_n2a(htons(s->prot), tb, sizeof(tb)));
- }
- if (s->iface == 0) {
- printf("%-*s ", serv_width, "*");
- } else {
- printf("%-*s ", serv_width, xll_index_to_name(s->iface));
- }
+ if (s->prot == 3)
+ addr = "*";
+ else
+ addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
+
+ if (s->iface == 0)
+ port = "*";
+ else
+ port = xll_index_to_name(s->iface);
- printf("%*s*%-*s", addr_width, "", serv_width, "");
+ sock_addr_print(addr, ":", port, NULL);
+ sock_addr_print("", "*", "", NULL);
if (show_proc_ctx || show_sock_ctx) {
if (find_entry(s->ino, &buf,
@@ -2903,7 +2922,9 @@ static void netlink_show_one(struct filter *f,
unsigned long long sk, unsigned long long cb)
{
struct sockstat st;
- SPRINT_BUF(prot_name);
+ SPRINT_BUF(prot_buf) = {};
+ const char *prot_name;
+ char procname[64] = {};
st.state = SS_CLOSE;
st.rq = rq;
@@ -2921,46 +2942,45 @@ static void netlink_show_one(struct filter *f,
sock_state_print(&st, "nl");
- if (resolve_services) {
- printf("%*s:", addr_width, nl_proto_n2a(prot, prot_name,
- sizeof(prot_name)));
- } else {
- printf("%*d:", addr_width, prot);
- }
+ if (resolve_services)
+ prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
+ else
+ prot_name = int_to_str(prot, prot_buf);
if (pid == -1) {
- printf("%-*s ", serv_width, "*");
+ procname[0] = '*';
} else if (resolve_services) {
int done = 0;
if (!pid) {
done = 1;
- printf("%-*s ", serv_width, "kernel");
+ strncpy(procname, "kernel", 6);
} else if (pid > 0) {
- char procname[64];
FILE *fp;
sprintf(procname, "%s/%d/stat",
getenv("PROC_ROOT") ? : "/proc", pid);
if ((fp = fopen(procname, "r")) != NULL) {
if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
sprintf(procname+strlen(procname), "/%d", pid);
- printf("%-*s ", serv_width, procname);
done = 1;
}
fclose(fp);
}
}
if (!done)
- printf("%-*d ", serv_width, pid);
+ int_to_str(pid, procname);
} else {
- printf("%-*d ", serv_width, pid);
+ int_to_str(pid, procname);
}
+ sock_addr_print(prot_name, ":", procname, NULL);
+
if (state == NETLINK_CONNECTED) {
- printf("%*d:%-*d",
- addr_width, dst_group, serv_width, dst_pid);
+ char dst_group_buf[30];
+ char dst_pid_buf[30];
+ sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
+ int_to_str(dst_pid, dst_pid_buf), NULL);
} else {
- printf("%*s*%-*s",
- addr_width, "", serv_width, "");
+ sock_addr_print("", "*", "", NULL);
}
char *pid_context = NULL;
--
2.2.2
--
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