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[NET]: Accept wildcard delimiters in in[46]_pton 

Accept -1 as delimiter to abort parsing without an error at the first
unknown character. This is needed by the upcoming nf_conntrack SIP
helper, where addresses are delimited by either '\r' or '\n' characters.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2006-12-02 22:04:04 -08:00 committed by David S. Miller
parent a163148c1b
commit 9a7c9337a0
2 changed files with 8 additions and 6 deletions
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4
include/linux/inet.h
View File

@ -46,7 +46,7 @@
#include <linux/types.h> #include <linux/types.h>
extern __be32 in_aton(const char *str); extern __be32 in_aton(const char *str);
extern int in4_pton(const char *src, int srclen, u8 *dst, char delim, const char **end); extern int in4_pton(const char *src, int srclen, u8 *dst, int delim, const char **end);
extern int in6_pton(const char *src, int srclen, u8 *dst, char delim, const char **end); extern int in6_pton(const char *src, int srclen, u8 *dst, int delim, const char **end);
#endif #endif
#endif /* _LINUX_INET_H */ #endif /* _LINUX_INET_H */

10
net/core/utils.c
View File

@ -88,7 +88,7 @@ EXPORT_SYMBOL(in_aton);
#define IN6PTON_NULL 0x20000000 /* first/tail */ #define IN6PTON_NULL 0x20000000 /* first/tail */
#define IN6PTON_UNKNOWN 0x40000000 #define IN6PTON_UNKNOWN 0x40000000
static inline int digit2bin(char c, char delim) static inline int digit2bin(char c, int delim)
{ {
if (c == delim || c == '\0') if (c == delim || c == '\0')
return IN6PTON_DELIM; return IN6PTON_DELIM;
@ -99,7 +99,7 @@ static inline int digit2bin(char c, char delim)
return IN6PTON_UNKNOWN; return IN6PTON_UNKNOWN;
} }
static inline int xdigit2bin(char c, char delim) static inline int xdigit2bin(char c, int delim)
{ {
if (c == delim || c == '\0') if (c == delim || c == '\0')
return IN6PTON_DELIM; return IN6PTON_DELIM;
@ -113,12 +113,14 @@ static inline int xdigit2bin(char c, char delim)
return (IN6PTON_XDIGIT | (c - 'a' + 10)); return (IN6PTON_XDIGIT | (c - 'a' + 10));
if (c >= 'A' && c <= 'F') if (c >= 'A' && c <= 'F')
return (IN6PTON_XDIGIT | (c - 'A' + 10)); return (IN6PTON_XDIGIT | (c - 'A' + 10));
if (delim == -1)
return IN6PTON_DELIM;
return IN6PTON_UNKNOWN; return IN6PTON_UNKNOWN;
} }
int in4_pton(const char *src, int srclen, int in4_pton(const char *src, int srclen,
u8 *dst, u8 *dst,
char delim, const char **end) int delim, const char **end)
{ {
const char *s; const char *s;
u8 *d; u8 *d;
@ -173,7 +175,7 @@ EXPORT_SYMBOL(in4_pton);
int in6_pton(const char *src, int srclen, int in6_pton(const char *src, int srclen,
u8 *dst, u8 *dst,
char delim, const char **end) int delim, const char **end)
{ {
const char *s, *tok = NULL; const char *s, *tok = NULL;
u8 *d, *dc = NULL; u8 *d, *dc = NULL;