udhcp: use improved gethostbyname replacement from IPv6 code
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@ -11,7 +11,8 @@
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#include "busybox.h"
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extern int setlogcons_main(int argc, char **argv)
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int setlogcons_main(int argc, char **argv);
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int setlogcons_main(int argc, char **argv)
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{
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struct {
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char fn;
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@ -319,13 +319,15 @@ int xconnect_stream(const len_and_sockaddr *lsa);
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* UNIX socket address being returned, IPX sockaddr etc...
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* On error does bb_error_msg and returns NULL */
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len_and_sockaddr* host2sockaddr(const char *host, int port);
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/* Versions which die on error */
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/* Version which dies on error */
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len_and_sockaddr* xhost2sockaddr(const char *host, int port);
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#if ENABLE_FEATURE_IPV6
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/* Same, useful if you want to force family (e.g. IPv6) */
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len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af);
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len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af);
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#else
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/* [we evaluate af: think about "xhost_and_af2sockaddr(..., af++)"] */
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/* [we evaluate af: think about "host_and_af2sockaddr(..., af++)"] */
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#define host_and_af2sockaddr(host, port, af) ((void)(af), host2sockaddr((host), (port)))
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#define xhost_and_af2sockaddr(host, port, af) ((void)(af), xhost2sockaddr((host), (port)))
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#endif
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/* Assign sin[6]_port member if the socket is of corresponding type,
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@ -346,6 +348,8 @@ char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa, socklen_t salen)
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// "old" (ipv4 only) API
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// users: traceroute.c hostname.c
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struct hostent *xgethostbyname(const char *name);
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// Also inetd.c and inetd.c are using gethostbyname(),
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// + inet_common.c has additional IPv4-only stuff
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extern char *xstrdup(const char *s);
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@ -182,6 +182,11 @@ USE_FEATURE_IPV6(sa_family_t af,)
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#endif
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#if ENABLE_FEATURE_IPV6
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len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af)
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{
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return str2sockaddr(host, port, af, 0);
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}
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len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af)
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{
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return str2sockaddr(host, port, af, DIE_ON_ERROR);
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@ -21,15 +21,14 @@
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/* on these functions, make sure you datatype matches */
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static int read_ip(const char *line, void *arg)
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{
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struct in_addr *addr = arg;
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struct hostent *host;
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int retval = 1;
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len_and_sockaddr *lsa;
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int retval = 0;
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if (!inet_aton(line, addr)) {
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host = gethostbyname(line);
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if (host)
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addr->s_addr = *((unsigned long *) host->h_addr_list[0]);
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else retval = 0;
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lsa = host_and_af2sockaddr(line, 0, AF_INET);
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if (lsa) {
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*(struct in_addr*)arg = lsa->sin.sin_addr;
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free(lsa);
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retval = 1;
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}
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return retval;
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}
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