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ifctrstat: Use new structure and recalculate binary size

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This commit is contained in:
A. Wilcox 2020-08-17 14:13:16 -05:00
parent 7b45d3939d
commit 1a11bb768f
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GPG key ID: CB29CB51922B9D14
3 changed files with 27 additions and 31 deletions
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2
Makefile
View file

@ -62,7 +62,7 @@ MULTICALL_${CONFIG_IFQUERY}_OBJ += ${IFQUERY_SRC:.c=.o}
CMDS_${CONFIG_IFQUERY} += ifquery
CPPFLAGS_${CONFIG_IFQUERY} += -DCONFIG_IFQUERY
# enable ifctrstat applet (+16 KB)
# enable ifctrstat applet (+1 KB)
CONFIG_IFCTRSTAT ?= Y
IFCTRSTAT_SRC = cmd/ifctrstat.c cmd/ifctrstat-${LAYOUT}.c
MULTICALL_${CONFIG_IFCTRSTAT}_OBJ += ${IFCTRSTAT_SRC:.c=.o}

48
cmd/ifctrstat-linux.c
View file

@ -19,19 +19,28 @@
#include <string.h>
#include "multicall.h"
const char *avail_counters[] = {
"rx.octets",
"rx.packets",
"rx.discard",
"rx.errors",
"tx.octets",
"tx.packets",
"tx.discard",
"tx.errors"
struct counter_desc {
const char *name;
const void *data;
} avail_counters[] = {
{"rx.discard", "rx_dropped"},
{"rx.errors", "rx_errors"},
{"rx.octets", "rx_bytes"},
{"rx.packets", "rx_packets"},
{"tx.discard", "tx_dropped"},
{"tx.errors", "tx_errors"},
{"tx.octets", "tx_bytes"},
{"tx.packets", "tx_packets"}
};
size_t avail_counters_count = ARRAY_SIZE(avail_counters);
static int
counter_compare(const void *key, const void *candidate)
{
return strcasecmp((const char *)key, ((struct counter_desc *)candidate)->name);
}
char *
read_counter(const char *interface, const char *counter)
{
@ -40,26 +49,13 @@ read_counter(const char *interface, const char *counter)
char full_path[PATH_MAX];
char buffer[1024];
size_t in_count;
struct counter_desc *ctrdata;
errno = 0;
if (strcasecmp(counter, "rx.octets") == 0)
{
path = "rx_bytes";
} else if (strcasecmp(counter, "rx.packets") == 0) {
path = "rx_packets";
} else if (strcasecmp(counter, "rx.discard") == 0) {
path = "rx_dropped";
} else if (strcasecmp(counter, "rx.errors") == 0) {
path = "rx_errors";
} else if (strcasecmp(counter, "tx.octets") == 0) {
path = "tx_bytes";
} else if (strcasecmp(counter, "tx.packets") == 0) {
path = "tx_packets";
} else if (strcasecmp(counter, "tx.discard") == 0) {
path = "tx_dropped";
} else if (strcasecmp(counter, "tx.errors") == 0) {
path = "tx_errors";
ctrdata = bsearch(counter, avail_counters, avail_counters_count, sizeof(struct counter_desc), counter_compare);
if (ctrdata) {
path = (const char *)ctrdata->data;
} else {
errno = ENOSYS;
return NULL;

8
cmd/ifctrstat.c
View file

@ -21,7 +21,7 @@
#include "libifupdown/libifupdown.h"
#include "cmd/multicall.h"
extern const char *avail_counters[];
extern struct counter_desc { const char *name; const void *data; } avail_counters[];
extern int avail_counters_count;
extern const char *read_counter(const char *interface, const char *counter);
@ -33,7 +33,7 @@ counter_is_valid(const char *candidate)
{
for (int i = 0; i < avail_counters_count; i++)
{
if (strcasecmp(avail_counters[i], candidate) == 0)
if (strcasecmp(avail_counters[i].name, candidate) == 0)
return true;
}
@ -56,7 +56,7 @@ print_all_counters(const char *iface)
const char *res;
for (int i = 0; i < avail_counters_count; i++) {
const char *ctr = avail_counters[i];
const char *ctr = avail_counters[i].name;
res = read_counter(iface, ctr);
if (!res)
@ -81,7 +81,7 @@ ifctrstat_list_counters(int short_opt, const struct if_option *opt, const char *
for (int i = 0; i < avail_counters_count; i++)
{
fprintf(stdout, "%s\n", avail_counters[i]);
fprintf(stdout, "%s\n", avail_counters[i].name);
}
exit(EXIT_SUCCESS);