utils: rework u_parse_ip4addr()

Redefine u_parse_ip4addr() to match the behaviour of other u_parse_*()
functions:

  * Drop the err_msg parameter.
  * Return the number of bytes parsed instead of an error number.
  * Remove support for fancy IPv4 address notations.

There is currently only one user of u_parse_ip4addr() (in iprange.c).
Dropping the fancy IPv4 address representations is probably not going
to harm anyone (quite the opposite as many users don't realise that
leading 0 means octal and that plain integers can be considered IPv4
addresses).

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>

1 files changed, 2 insertions, 2 deletions

diff --git a/accel-pppd/utils.h b/accel-pppd/utils.h
index d3e0608..a7c3897 100644
--- a/accel-pppd/utils.h
+++ b/accel-pppd/utils.h
@@ -16,9 +16,9 @@ size_t u_parse_u8(const char *str, uint8_t *val);
 size_t u_parse_u16(const char *str, uint16_t *val);
 size_t u_parse_u32(const char *str, uint32_t *val);
 
-int u_parse_ip4addr(const char *src, struct in_addr *addr,
-		    const char **err_msg);
 size_t u_parse_ip6addr(const char *str, struct in6_addr *addr);
+size_t u_parse_ip4addr(const char *str, struct in_addr *addr);
+
 size_t u_parse_ip6cidr(const char *str, struct in6_addr *netp, uint8_t *plen);
 
 int u_randbuf(void *buf, size_t buf_len, int *err);