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remove obsolete and unused gethostbyaddr implementation

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this code was already under #if 0, but could be confusing if a reader
didn't notice that, and it's almost surely full of bugs and/or
inconsistencies with the current code that uses the gethostbyname2_r
backend.
This commit is contained in:
Rich Felker 2016-07-06 21:15:00 -04:00
parent 5ab0b20ea6
commit 7c82870d45
1 changed files with 0 additions and 52 deletions
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52
src/network/gethostbyname.c
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@ -9,55 +9,3 @@ struct hostent *gethostbyname(const char *name)
{
return gethostbyname2(name, AF_INET);
}
#if 0
struct hostent *gethostbyname(const char *name)
{
static struct hostent h;
static char *h_aliases[3];
static char h_canon[256];
static char *h_addr_list[10];
static char h_addr_data[10][4];
static const struct addrinfo hint = {
.ai_family = AF_INET, .ai_flags = AI_CANONNAME
};
struct addrinfo *ai, *p;
int i;
switch (getaddrinfo(name, 0, &hint, &ai)) {
case EAI_NONAME:
h_errno = HOST_NOT_FOUND;
break;
case EAI_AGAIN:
h_errno = TRY_AGAIN;
break;
case EAI_FAIL:
h_errno = NO_RECOVERY;
break;
default:
case EAI_MEMORY:
case EAI_SYSTEM:
h_errno = NO_DATA;
break;
case 0:
break;
}
strcpy(h_canon, ai->ai_canonname);
h.h_name = h_canon;
h.h_aliases = h_aliases;
h.h_aliases[0] = h_canon;
h.h_aliases[1] = strcmp(h_canon, name) ? (char *)name : 0;
h.h_length = 4;
h.h_addr_list = h_addr_list;
for (i=0, p=ai; i<sizeof h_addr_data/4 && p; i++, p=p->ai_next) {
h.h_addr_list[i] = h_addr_data[i];
memcpy(h.h_addr_list[i],
&((struct sockaddr_in *)p->ai_addr)->sin_addr, 4);
}
h.h_addr_list[i] = 0;
h.h_addrtype = AF_INET;
freeaddrinfo(ai);
return &h;
}
#endif