rt_names: stop allocating 5k in rwdata

objsizes: don't show build machinery's object modules

1 files changed, 85 insertions, 105 deletions

diff --git a/networking/libiproute/rt_names.c b/networking/libiproute/rt_names.c
index ed21fbe..69eb55e 100644
--- a/networking/libiproute/rt_names.c
+++ b/networking/libiproute/rt_names.c
@@ -9,11 +9,8 @@
  *
  * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-#include <stdint.h>
+#include "libbb.h"
 #include "rt_names.h"
 
 static void rtnl_tab_initialize(char *file, const char **tab, int size)
@@ -37,57 +34,56 @@ static void rtnl_tab_initialize(char *file, const char **tab, int size)
 		    sscanf(p, "0x%x %s #", &id, namebuf) != 2 &&
 		    sscanf(p, "%d %s\n", &id, namebuf) != 2 &&
 		    sscanf(p, "%d %s #", &id, namebuf) != 2) {
-			fprintf(stderr, "Database %s is corrupted at %s\n",
+			bb_error_msg("database %s is corrupted at %s",
 				file, p);
 			return;
 		}
 
-		if (id<0 || id>size)
+		if (id < 0 || id > size)
 			continue;
 
-		tab[id] = strdup(namebuf);
+		tab[id] = xstrdup(namebuf);
 	}
 	fclose(fp);
 }
 
 
-static const char * rtnl_rtprot_tab[256] = {
-	"none",
-	"redirect",
-	"kernel",
-	"boot",
-	"static",
-	NULL,
-	NULL,
-	NULL,
-	"gated",
-	"ra",
-	"mrt",
-	"zebra",
-	"bird",
-};
-
-
-
-static int rtnl_rtprot_init;
+static const char **rtnl_rtprot_tab; /* [256] */
 
 static void rtnl_rtprot_initialize(void)
 {
-	rtnl_rtprot_init = 1;
+	static const char *const init_tab[] = {
+		"none",
+		"redirect",
+		"kernel",
+		"boot",
+		"static",
+		NULL,
+		NULL,
+		NULL,
+		"gated",
+		"ra",
+		"mrt",
+		"zebra",
+		"bird",
+	};
+	if (rtnl_rtprot_tab) return;
+	rtnl_rtprot_tab = xzalloc(256 * sizeof(rtnl_rtprot_tab[0]));
+	memcpy(rtnl_rtprot_tab, init_tab, sizeof(init_tab));
 	rtnl_tab_initialize("/etc/iproute2/rt_protos",
 			    rtnl_rtprot_tab, 256);
 }
 
-const char * rtnl_rtprot_n2a(int id, char *buf, int len)
+
+const char* rtnl_rtprot_n2a(int id, char *buf, int len)
 {
-	if (id<0 || id>=256) {
+	if (id < 0 || id >= 256) {
 		snprintf(buf, len, "%d", id);
 		return buf;
 	}
-	if (!rtnl_rtprot_tab[id]) {
-		if (!rtnl_rtprot_init)
-			rtnl_rtprot_initialize();
-	}
+
+	rtnl_rtprot_initialize();
+
 	if (rtnl_rtprot_tab[id])
 		return rtnl_rtprot_tab[id];
 	snprintf(buf, len, "%d", id);
@@ -98,7 +94,6 @@ int rtnl_rtprot_a2n(uint32_t *id, char *arg)
 {
 	static const char *cache = NULL;
 	static unsigned long res;
-	char *end;
 	int i;
 
 	if (cache && strcmp(cache, arg) == 0) {
@@ -106,10 +101,9 @@ int rtnl_rtprot_a2n(uint32_t *id, char *arg)
 		return 0;
 	}
 
-	if (!rtnl_rtprot_init)
-		rtnl_rtprot_initialize();
+	rtnl_rtprot_initialize();
 
-	for (i=0; i<256; i++) {
+	for (i = 0; i < 256; i++) {
 		if (rtnl_rtprot_tab[i] &&
 		    strcmp(rtnl_rtprot_tab[i], arg) == 0) {
 			cache = rtnl_rtprot_tab[i];
@@ -119,24 +113,21 @@ int rtnl_rtprot_a2n(uint32_t *id, char *arg)
 		}
 	}
 
-	res = strtoul(arg, &end, 0);
-	if (!end || end == arg || *end || res > 255)
+	res = bb_strtoul(arg, NULL, 0);
+	if (errno || res > 255)
 		return -1;
 	*id = res;
 	return 0;
 }
 
 
-
-static const char * rtnl_rtscope_tab[256] = {
-	"global",
-};
-
-static int rtnl_rtscope_init;
+static const char **rtnl_rtscope_tab; /* [256] */
 
 static void rtnl_rtscope_initialize(void)
 {
-	rtnl_rtscope_init = 1;
+	if (rtnl_rtscope_tab) return;
+	rtnl_rtscope_tab = xzalloc(256 * sizeof(rtnl_rtscope_tab[0]));
+	rtnl_rtscope_tab[0] = "global";
 	rtnl_rtscope_tab[255] = "nowhere";
 	rtnl_rtscope_tab[254] = "host";
 	rtnl_rtscope_tab[253] = "link";
@@ -145,16 +136,16 @@ static void rtnl_rtscope_initialize(void)
 			    rtnl_rtscope_tab, 256);
 }
 
-const char * rtnl_rtscope_n2a(int id, char *buf, int len)
+
+const char* rtnl_rtscope_n2a(int id, char *buf, int len)
 {
-	if (id<0 || id>=256) {
+	if (id < 0 || id >= 256) {
 		snprintf(buf, len, "%d", id);
 		return buf;
 	}
-	if (!rtnl_rtscope_tab[id]) {
-		if (!rtnl_rtscope_init)
-			rtnl_rtscope_initialize();
-	}
+
+	rtnl_rtscope_initialize();
+
 	if (rtnl_rtscope_tab[id])
 		return rtnl_rtscope_tab[id];
 	snprintf(buf, len, "%d", id);
@@ -165,7 +156,6 @@ int rtnl_rtscope_a2n(uint32_t *id, char *arg)
 {
 	static const char *cache = NULL;
 	static unsigned long res;
-	char *end;
 	int i;
 
 	if (cache && strcmp(cache, arg) == 0) {
@@ -173,10 +163,9 @@ int rtnl_rtscope_a2n(uint32_t *id, char *arg)
 		return 0;
 	}
 
-	if (!rtnl_rtscope_init)
-		rtnl_rtscope_initialize();
+	rtnl_rtscope_initialize();
 
-	for (i=0; i<256; i++) {
+	for (i = 0; i < 256; i++) {
 		if (rtnl_rtscope_tab[i] &&
 		    strcmp(rtnl_rtscope_tab[i], arg) == 0) {
 			cache = rtnl_rtscope_tab[i];
@@ -186,33 +175,30 @@ int rtnl_rtscope_a2n(uint32_t *id, char *arg)
 		}
 	}
 
-	res = strtoul(arg, &end, 0);
-	if (!end || end == arg || *end || res > 255)
+	res = bb_strtoul(arg, NULL, 0);
+	if (errno || res > 255)
 		return -1;
 	*id = res;
 	return 0;
 }
 
 
-
-static const char * rtnl_rtrealm_tab[256] = {
-	"unknown",
-};
-
-static int rtnl_rtrealm_init;
+static const char **rtnl_rtrealm_tab; /* [256] */
 
 static void rtnl_rtrealm_initialize(void)
 {
-	rtnl_rtrealm_init = 1;
+	if (rtnl_rtrealm_tab) return;
+	rtnl_rtrealm_tab = xzalloc(256 * sizeof(rtnl_rtrealm_tab[0]));
+	rtnl_rtrealm_tab[0] = "unknown";
 	rtnl_tab_initialize("/etc/iproute2/rt_realms",
 			    rtnl_rtrealm_tab, 256);
 }
 
+
 int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
 {
 	static const char *cache = NULL;
 	static unsigned long res;
-	char *end;
 	int i;
 
 	if (cache && strcmp(cache, arg) == 0) {
@@ -220,10 +206,9 @@ int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
 		return 0;
 	}
 
-	if (!rtnl_rtrealm_init)
-		rtnl_rtrealm_initialize();
+	rtnl_rtrealm_initialize();
 
-	for (i=0; i<256; i++) {
+	for (i = 0; i < 256; i++) {
 		if (rtnl_rtrealm_tab[i] &&
 		    strcmp(rtnl_rtrealm_tab[i], arg) == 0) {
 			cache = rtnl_rtrealm_tab[i];
@@ -233,24 +218,23 @@ int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
 		}
 	}
 
-	res = strtoul(arg, &end, 0);
-	if (!end || end == arg || *end || res > 255)
+	res = bb_strtoul(arg, NULL, 0);
+	if (errno || res > 255)
 		return -1;
 	*id = res;
 	return 0;
 }
 
 #if ENABLE_FEATURE_IP_RULE
-const char * rtnl_rtrealm_n2a(int id, char *buf, int len)
+const char* rtnl_rtrealm_n2a(int id, char *buf, int len)
 {
 	if (id<0 || id>=256) {
 		snprintf(buf, len, "%d", id);
 		return buf;
 	}
-	if (!rtnl_rtrealm_tab[id]) {
-		if (!rtnl_rtrealm_init)
-			rtnl_rtrealm_initialize();
-	}
+
+	rtnl_rtrealm_initialize();
+
 	if (rtnl_rtrealm_tab[id])
 		return rtnl_rtrealm_tab[id];
 	snprintf(buf, len, "%d", id);
@@ -258,29 +242,28 @@ const char * rtnl_rtrealm_n2a(int id, char *buf, int len)
 }
 #endif
 
-static const char * rtnl_rtdsfield_tab[256] = {
-	"0",
-};
 
-static int rtnl_rtdsfield_init;
+static const char **rtnl_rtdsfield_tab; /* [256] */
 
 static void rtnl_rtdsfield_initialize(void)
 {
-	rtnl_rtdsfield_init = 1;
+	if (rtnl_rtdsfield_tab) return;
+	rtnl_rtdsfield_tab = xzalloc(256 * sizeof(rtnl_rtdsfield_tab[0]));
+	rtnl_rtdsfield_tab[0] = "0";
 	rtnl_tab_initialize("/etc/iproute2/rt_dsfield",
 			    rtnl_rtdsfield_tab, 256);
 }
 
+
 const char * rtnl_dsfield_n2a(int id, char *buf, int len)
 {
 	if (id<0 || id>=256) {
 		snprintf(buf, len, "%d", id);
 		return buf;
 	}
-	if (!rtnl_rtdsfield_tab[id]) {
-		if (!rtnl_rtdsfield_init)
-			rtnl_rtdsfield_initialize();
-	}
+
+	rtnl_rtdsfield_initialize();
+
 	if (rtnl_rtdsfield_tab[id])
 		return rtnl_rtdsfield_tab[id];
 	snprintf(buf, len, "0x%02x", id);
@@ -292,7 +275,6 @@ int rtnl_dsfield_a2n(uint32_t *id, char *arg)
 {
 	static const char *cache = NULL;
 	static unsigned long res;
-	char *end;
 	int i;
 
 	if (cache && strcmp(cache, arg) == 0) {
@@ -300,10 +282,9 @@ int rtnl_dsfield_a2n(uint32_t *id, char *arg)
 		return 0;
 	}
 
-	if (!rtnl_rtdsfield_init)
-		rtnl_rtdsfield_initialize();
+	rtnl_rtdsfield_initialize();
 
-	for (i=0; i<256; i++) {
+	for (i = 0; i < 256; i++) {
 		if (rtnl_rtdsfield_tab[i] &&
 		    strcmp(rtnl_rtdsfield_tab[i], arg) == 0) {
 			cache = rtnl_rtdsfield_tab[i];
@@ -313,37 +294,38 @@ int rtnl_dsfield_a2n(uint32_t *id, char *arg)
 		}
 	}
 
-	res = strtoul(arg, &end, 16);
-	if (!end || end == arg || *end || res > 255)
+	res = bb_strtoul(arg, NULL, 16);
+	if (errno || res > 255)
 		return -1;
 	*id = res;
 	return 0;
 }
 
+
 #if ENABLE_FEATURE_IP_RULE
-static int rtnl_rttable_init;
-static const char * rtnl_rttable_tab[256] = {
-	"unspec",
-};
+static const char **rtnl_rttable_tab; /* [256] */
+
 static void rtnl_rttable_initialize(void)
 {
-	rtnl_rttable_init = 1;
+	if (rtnl_rtdsfield_tab) return;
+	rtnl_rttable_tab = xzalloc(256 * sizeof(rtnl_rttable_tab[0]));
+	rtnl_rttable_tab[0] = "unspec";
 	rtnl_rttable_tab[255] = "local";
 	rtnl_rttable_tab[254] = "main";
 	rtnl_rttable_tab[253] = "default";
 	rtnl_tab_initialize("/etc/iproute2/rt_tables", rtnl_rttable_tab, 256);
 }
 
+
 const char *rtnl_rttable_n2a(int id, char *buf, int len)
 {
 	if (id < 0 || id >= 256) {
 		snprintf(buf, len, "%d", id);
 		return buf;
 	}
-	if (!rtnl_rttable_tab[id]) {
-		if (!rtnl_rttable_init)
-			rtnl_rttable_initialize();
-	}
+
+	rtnl_rttable_initialize();
+
 	if (rtnl_rttable_tab[id])
 		return rtnl_rttable_tab[id];
 	snprintf(buf, len, "%d", id);
@@ -354,7 +336,6 @@ int rtnl_rttable_a2n(uint32_t * id, char *arg)
 {
 	static char *cache = NULL;
 	static unsigned long res;
-	char *end;
 	int i;
 
 	if (cache && strcmp(cache, arg) == 0) {
@@ -362,8 +343,7 @@ int rtnl_rttable_a2n(uint32_t * id, char *arg)
 		return 0;
 	}
 
-	if (!rtnl_rttable_init)
-		rtnl_rttable_initialize();
+	rtnl_rttable_initialize();
 
 	for (i = 0; i < 256; i++) {
 		if (rtnl_rttable_tab[i] && strcmp(rtnl_rttable_tab[i], arg) == 0) {
@@ -374,8 +354,8 @@ int rtnl_rttable_a2n(uint32_t * id, char *arg)
 		}
 	}
 
-	i = strtoul(arg, &end, 0);
-	if (!end || end == arg || *end || i > 255)
+	i = bb_strtoul(arg, NULL, 0);
+	if (errno || i > 255)
 		return -1;
 	*id = i;
 	return 0;