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authorJeff Garzik <jgarzik@pobox.com>2005-08-17 00:51:31 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-08-17 00:51:31 -0400
commita2e30e529a48ef4e106e405f91cf4ae525bb01c4 (patch)
tree2def96ef17c0672c30f1a10287552978bf1d0b1c /net/core/utils.c
parentedb3366703224d5d8df573ae698ccd6b488dc743 (diff)
parent2ad56496627630ebc99f06af5f81ca23e17e014e (diff)
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'net/core/utils.c')
-rw-r--r--net/core/utils.c37
1 files changed, 36 insertions, 1 deletions
diff --git a/net/core/utils.c b/net/core/utils.c
index e11a8654f363..88eb8b68e26b 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -23,10 +23,10 @@
#include <linux/percpu.h>
#include <linux/init.h>
+#include <asm/byteorder.h>
#include <asm/system.h>
#include <asm/uaccess.h>
-
/*
This is a maximally equidistributed combined Tausworthe generator
based on code from GNU Scientific Library 1.5 (30 Jun 2004)
@@ -153,3 +153,38 @@ int net_ratelimit(void)
EXPORT_SYMBOL(net_random);
EXPORT_SYMBOL(net_ratelimit);
EXPORT_SYMBOL(net_srandom);
+
+/*
+ * Convert an ASCII string to binary IP.
+ * This is outside of net/ipv4/ because various code that uses IP addresses
+ * is otherwise not dependent on the TCP/IP stack.
+ */
+
+__u32 in_aton(const char *str)
+{
+ unsigned long l;
+ unsigned int val;
+ int i;
+
+ l = 0;
+ for (i = 0; i < 4; i++)
+ {
+ l <<= 8;
+ if (*str != '\0')
+ {
+ val = 0;
+ while (*str != '\0' && *str != '.')
+ {
+ val *= 10;
+ val += *str - '0';
+ str++;
+ }
+ l |= val;
+ if (*str != '\0')
+ str++;
+ }
+ }
+ return(htonl(l));
+}
+
+EXPORT_SYMBOL(in_aton);