diff options
Diffstat (limited to 'net/core/utils.c')
| -rw-r--r-- | net/core/utils.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/net/core/utils.c b/net/core/utils.c index e11a8654f363..7b5970fc9e40 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -16,17 +16,19 @@ #include <linux/module.h> #include <linux/jiffies.h> #include <linux/kernel.h> +#include <linux/inet.h> #include <linux/mm.h> +#include <linux/net.h> #include <linux/string.h> #include <linux/types.h> #include <linux/random.h> #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 +155,38 @@ 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); |