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Accept strings in standard Internet notation (except the broadcast

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address).


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1750 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Björn Groenvall
1997-05-20 19:57:03 +00:00
parent 6e74b9101d
commit b5159d95c0
1 changed files with 6 additions and 24 deletions
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30
lib/roken/inet_aton.c
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@@ -57,30 +57,12 @@ RCSID("$Id$");
#include <arpa/inet.h>
#endif
/* Minimal implementation of inet_aton. Doesn't handle hex numbers. */
/* Minimal implementation of inet_aton.
* Cannot distinguish between failure and a local broadcast address. */
int inet_aton(const char *cp, struct in_addr *adr)
int
inet_aton(const char *cp, struct in_addr *addr)
{
unsigned int a, b, c, d;
int num;
num = sscanf(cp, "%u.%u.%u.%u", &a, &b, &c, &d);
if(num < 2)
return 0;
if(num == 2){
c = b & 0xffff;
b = b >> 16;
}
if(num < 4){
d = c & 0xff;
c = c >> 8;
}
if(a > 255 || b > 255 || c > 255 || d > 255)
return 0;
adr->s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
return 1;
addr->s_addr = inet_addr(cp);
return (addr->s_addr == INADDR_NONE) ? 0 : 1;
}