udhcp: use improved gethostbyname replacement from IPv6 code

This commit is contained in:
Denis Vlasenko 2007-02-04 02:41:57 +00:00
parent 1094452423
commit e991303406
4 changed files with 20 additions and 11 deletions

View File

@ -11,7 +11,8 @@
#include "busybox.h"
extern int setlogcons_main(int argc, char **argv)
int setlogcons_main(int argc, char **argv);
int setlogcons_main(int argc, char **argv)
{
struct {
char fn;

View File

@ -319,13 +319,15 @@ int xconnect_stream(const len_and_sockaddr *lsa);
* UNIX socket address being returned, IPX sockaddr etc...
* On error does bb_error_msg and returns NULL */
len_and_sockaddr* host2sockaddr(const char *host, int port);
/* Versions which die on error */
/* Version which dies on error */
len_and_sockaddr* xhost2sockaddr(const char *host, int port);
#if ENABLE_FEATURE_IPV6
/* Same, useful if you want to force family (e.g. IPv6) */
len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af);
len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af);
#else
/* [we evaluate af: think about "xhost_and_af2sockaddr(..., af++)"] */
/* [we evaluate af: think about "host_and_af2sockaddr(..., af++)"] */
#define host_and_af2sockaddr(host, port, af) ((void)(af), host2sockaddr((host), (port)))
#define xhost_and_af2sockaddr(host, port, af) ((void)(af), xhost2sockaddr((host), (port)))
#endif
/* Assign sin[6]_port member if the socket is of corresponding type,
@ -346,6 +348,8 @@ char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa, socklen_t salen)
// "old" (ipv4 only) API
// users: traceroute.c hostname.c
struct hostent *xgethostbyname(const char *name);
// Also inetd.c and inetd.c are using gethostbyname(),
// + inet_common.c has additional IPv4-only stuff
extern char *xstrdup(const char *s);

View File

@ -182,6 +182,11 @@ USE_FEATURE_IPV6(sa_family_t af,)
#endif
#if ENABLE_FEATURE_IPV6
len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af)
{
return str2sockaddr(host, port, af, 0);
}
len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af)
{
return str2sockaddr(host, port, af, DIE_ON_ERROR);

View File

@ -21,15 +21,14 @@
/* on these functions, make sure you datatype matches */
static int read_ip(const char *line, void *arg)
{
struct in_addr *addr = arg;
struct hostent *host;
int retval = 1;
len_and_sockaddr *lsa;
int retval = 0;
if (!inet_aton(line, addr)) {
host = gethostbyname(line);
if (host)
addr->s_addr = *((unsigned long *) host->h_addr_list[0]);
else retval = 0;
lsa = host_and_af2sockaddr(line, 0, AF_INET);
if (lsa) {
*(struct in_addr*)arg = lsa->sin.sin_addr;
free(lsa);
retval = 1;
}
return retval;
}