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change inet_addr to inet_aton 

The former cannot differentiate between errors (-1) and 255.255.255.255.
Switch to inet_aton which does not have this problem.
This commit is contained in:
Mike Frysinger 2018-01-11 03:32:05 +00:00
parent c037092c97
commit 5236e1513f
1 changed files with 3 additions and 3 deletions
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6
netcat.c
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@ -352,6 +352,7 @@ HINF * gethostpoop (name, numeric)
struct in_addr iaddr; struct in_addr iaddr;
register HINF * poop = NULL; register HINF * poop = NULL;
register int x; register int x;
int rc;
/* I really want to strangle the twit who dreamed up all these sockaddr and /* I really want to strangle the twit who dreamed up all these sockaddr and
hostent abstractions, and then forced them all to be incompatible with hostent abstractions, and then forced them all to be incompatible with
@ -379,10 +380,9 @@ HINF * gethostpoop (name, numeric)
if (! poop) if (! poop)
bail ("gethostpoop fuxored"); bail ("gethostpoop fuxored");
strcpy (poop->name, unknown); /* preload it */ strcpy (poop->name, unknown); /* preload it */
/* see wzv:workarounds.c for dg/ux return-a-struct inet_addr lossage */ rc = inet_aton (name, &iaddr);
iaddr.s_addr = inet_addr (name);
if (iaddr.s_addr == INADDR_NONE) { /* here's the great split: names... */ if (rc == 0) { /* here's the great split: names... */
if (numeric) if (numeric)
bail ("Can't parse %s as an IP address", name); bail ("Can't parse %s as an IP address", name);
hostent = gethostbyname (name); hostent = gethostbyname (name);