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-rw-r--r--Config.h6
-rw-r--r--ifconfig.c26
-rw-r--r--networking/ifconfig.c26
3 files changed, 19 insertions, 39 deletions
diff --git a/Config.h b/Config.h
index e6f5315..c46e2d2 100644
--- a/Config.h
+++ b/Config.h
@@ -319,7 +319,7 @@
// Support for Minix filesystem, version 2
//#define BB_FEATURE_MINIX2
//
-// Enable ifconfig status reporting output -- this feature adds 12k.
+// Enable ifconfig status reporting output -- this feature adds 7k.
//#define BB_FEATURE_IFCONFIG_STATUS
//
// Enable ifconfig slip-specific options "keepalive" and "outfill"
@@ -331,6 +331,10 @@
// Enable ifconfig option "hw". Currently works for only with "ether".
//#define BB_FEATURE_IFCONFIG_HW
//
+// Allows "broadcast +" to set broadcast automatically based on hostaddr
+// and netmask, at a cost of about 100 bytes of code (i386).
+//#define BB_FEATURE_IFCONFIG_BROADCAST_PLUS
+//
// Enable busybox --install [-s]
// to create links (or symlinks) for all the commands that are
// compiled into the binary. (needs /proc filesystem)
diff --git a/ifconfig.c b/ifconfig.c
index 7f3978a..c77ea04 100644
--- a/ifconfig.c
+++ b/ifconfig.c
@@ -15,7 +15,7 @@
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*
- * $Id: ifconfig.c,v 1.11 2001/07/07 05:19:52 andersen Exp $
+ * $Id: ifconfig.c,v 1.12 2001/08/10 06:02:23 mjn3 Exp $
*
*/
@@ -110,8 +110,6 @@
#define A_NETMASK 0x20 /* Set if netmask (check for multiple sets). */
#define A_SET_AFTER 0x40 /* Set a flag at the end. */
#define A_COLON_CHK 0x80 /* Is this needed? See below. */
-#define A_HOSTNAME 0x100 /* Set if it is ip addr. */
-#define A_BROADCAST 0x200 /* Set if it is broadcast addr. */
/*
* These defines are for dealing with the A_CAST_TYPE field.
@@ -141,12 +139,12 @@
#define ARG_IRQ (A_ARG_REQ | A_MAP_UCHAR)
#define ARG_DSTADDR (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE)
#define ARG_NETMASK (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_NETMASK)
-#define ARG_BROADCAST (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_BROADCAST)
+#define ARG_BROADCAST (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
#define ARG_HW (A_ARG_REQ | A_CAST_HOST_COPY_IN_ETHER)
#define ARG_POINTOPOINT (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
#define ARG_KEEPALIVE (A_ARG_REQ | A_CAST_CHAR_PTR)
#define ARG_OUTFILL (A_ARG_REQ | A_CAST_CHAR_PTR)
-#define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK | A_HOSTNAME)
+#define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK)
/*
@@ -162,7 +160,7 @@ struct arg1opt {
struct options {
const char *name;
const unsigned char flags;
- const unsigned int arg_flags;
+ const unsigned char arg_flags;
const unsigned short selector;
};
@@ -248,7 +246,6 @@ int ifconfig_main(int argc, char **argv)
{
struct ifreq ifr;
struct sockaddr_in sai;
- struct sockaddr_in sai_hostname, sai_netmask;
#ifdef BB_FEATURE_IFCONFIG_HW
struct sockaddr sa;
#endif
@@ -259,8 +256,8 @@ int ifconfig_main(int argc, char **argv)
int selector;
char *p;
char host[128];
- unsigned int mask;
- unsigned int did_flags;
+ unsigned char mask;
+ unsigned char did_flags;
goterr = 0;
did_flags = 0;
@@ -334,7 +331,7 @@ int ifconfig_main(int argc, char **argv)
}
} else { /* got an arg so process it */
HOSTNAME:
- did_flags |= (mask & (A_NETMASK|A_HOSTNAME));
+ did_flags |= (mask & A_NETMASK);
if (mask & A_CAST_HOST_COPY) {
#ifdef BB_FEATURE_IFCONFIG_HW
if (mask & A_CAST_RESOLVE) {
@@ -345,20 +342,11 @@ int ifconfig_main(int argc, char **argv)
if (!strcmp(host, "default")) {
/* Default is special, meaning 0.0.0.0. */
sai.sin_addr.s_addr = INADDR_ANY;
- } else if ((!strcmp(host, "+")) && (mask & A_BROADCAST) &&
- (did_flags & (A_NETMASK|A_HOSTNAME))) {
- /* + is special, meaning broadcast is derived. */
- sai.sin_addr.s_addr = (~sai_netmask.sin_addr.s_addr) |
- (sai_hostname.sin_addr.s_addr & sai_netmask.sin_addr.s_addr);
} else if (inet_aton(host, &sai.sin_addr) == 0) {
/* It's not a dotted quad. */
++goterr;
continue;
}
- if(mask & A_HOSTNAME)
- sai_hostname = sai;
- if(mask & A_NETMASK)
- sai_netmask = sai;
p = (char *) &sai;
#ifdef BB_FEATURE_IFCONFIG_HW
} else { /* A_CAST_HOST_COPY_IN_ETHER */
diff --git a/networking/ifconfig.c b/networking/ifconfig.c
index 7f3978a..c77ea04 100644
--- a/networking/ifconfig.c
+++ b/networking/ifconfig.c
@@ -15,7 +15,7 @@
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*
- * $Id: ifconfig.c,v 1.11 2001/07/07 05:19:52 andersen Exp $
+ * $Id: ifconfig.c,v 1.12 2001/08/10 06:02:23 mjn3 Exp $
*
*/
@@ -110,8 +110,6 @@
#define A_NETMASK 0x20 /* Set if netmask (check for multiple sets). */
#define A_SET_AFTER 0x40 /* Set a flag at the end. */
#define A_COLON_CHK 0x80 /* Is this needed? See below. */
-#define A_HOSTNAME 0x100 /* Set if it is ip addr. */
-#define A_BROADCAST 0x200 /* Set if it is broadcast addr. */
/*
* These defines are for dealing with the A_CAST_TYPE field.
@@ -141,12 +139,12 @@
#define ARG_IRQ (A_ARG_REQ | A_MAP_UCHAR)
#define ARG_DSTADDR (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE)
#define ARG_NETMASK (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_NETMASK)
-#define ARG_BROADCAST (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_BROADCAST)
+#define ARG_BROADCAST (A_ARG_REQ | A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
#define ARG_HW (A_ARG_REQ | A_CAST_HOST_COPY_IN_ETHER)
#define ARG_POINTOPOINT (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER)
#define ARG_KEEPALIVE (A_ARG_REQ | A_CAST_CHAR_PTR)
#define ARG_OUTFILL (A_ARG_REQ | A_CAST_CHAR_PTR)
-#define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK | A_HOSTNAME)
+#define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK)
/*
@@ -162,7 +160,7 @@ struct arg1opt {
struct options {
const char *name;
const unsigned char flags;
- const unsigned int arg_flags;
+ const unsigned char arg_flags;
const unsigned short selector;
};
@@ -248,7 +246,6 @@ int ifconfig_main(int argc, char **argv)
{
struct ifreq ifr;
struct sockaddr_in sai;
- struct sockaddr_in sai_hostname, sai_netmask;
#ifdef BB_FEATURE_IFCONFIG_HW
struct sockaddr sa;
#endif
@@ -259,8 +256,8 @@ int ifconfig_main(int argc, char **argv)
int selector;
char *p;
char host[128];
- unsigned int mask;
- unsigned int did_flags;
+ unsigned char mask;
+ unsigned char did_flags;
goterr = 0;
did_flags = 0;
@@ -334,7 +331,7 @@ int ifconfig_main(int argc, char **argv)
}
} else { /* got an arg so process it */
HOSTNAME:
- did_flags |= (mask & (A_NETMASK|A_HOSTNAME));
+ did_flags |= (mask & A_NETMASK);
if (mask & A_CAST_HOST_COPY) {
#ifdef BB_FEATURE_IFCONFIG_HW
if (mask & A_CAST_RESOLVE) {
@@ -345,20 +342,11 @@ int ifconfig_main(int argc, char **argv)
if (!strcmp(host, "default")) {
/* Default is special, meaning 0.0.0.0. */
sai.sin_addr.s_addr = INADDR_ANY;
- } else if ((!strcmp(host, "+")) && (mask & A_BROADCAST) &&
- (did_flags & (A_NETMASK|A_HOSTNAME))) {
- /* + is special, meaning broadcast is derived. */
- sai.sin_addr.s_addr = (~sai_netmask.sin_addr.s_addr) |
- (sai_hostname.sin_addr.s_addr & sai_netmask.sin_addr.s_addr);
} else if (inet_aton(host, &sai.sin_addr) == 0) {
/* It's not a dotted quad. */
++goterr;
continue;
}
- if(mask & A_HOSTNAME)
- sai_hostname = sai;
- if(mask & A_NETMASK)
- sai_netmask = sai;
p = (char *) &sai;
#ifdef BB_FEATURE_IFCONFIG_HW
} else { /* A_CAST_HOST_COPY_IN_ETHER */
generated by cgit v1.1 at 2024-12-28 15:51:02 +0000