*
* Heavily modified by Manuel Novoa III Mar 12, 2001
*
- * Version: $Id: inet_common.c,v 1.8 2004/03/10 07:42:38 mjn3 Exp $
*
*/
#include "libbb.h"
#include "inet_common.h"
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#ifdef DEBUG
-# include <resolv.h>
-#endif
-
-
-const char bb_INET_default[] = "default";
int INET_resolve(const char *name, struct sockaddr_in *s_in, int hostfirst)
{
s_in->sin_port = 0;
/* Default is special, meaning 0.0.0.0. */
- if (!strcmp(name, bb_INET_default)) {
+ if (!strcmp(name, bb_str_default)) {
s_in->sin_addr.s_addr = INADDR_ANY;
- return (1);
+ return 1;
}
/* Look to see if it's a dotted quad. */
if (inet_aton(name, &s_in->sin_addr)) {
/* If we expect this to be a hostname, try hostname database first */
#ifdef DEBUG
if (hostfirst) {
- bb_error_msg("gethostbyname (%s)", name);
+ bb_error_msg("gethostbyname(%s)", name);
}
#endif
- if (hostfirst && (hp = gethostbyname(name)) != (struct hostent *) NULL) {
- memcpy((char *) &s_in->sin_addr, (char *) hp->h_addr_list[0],
- sizeof(struct in_addr));
- return 0;
+ if (hostfirst) {
+ hp = gethostbyname(name);
+ if (hp != NULL) {
+ memcpy(&s_in->sin_addr, hp->h_addr_list[0],
+ sizeof(struct in_addr));
+ return 0;
+ }
}
/* Try the NETWORKS database to see if this is a known network. */
#ifdef DEBUG
- bb_error_msg("getnetbyname (%s)", name);
+ bb_error_msg("getnetbyname(%s)", name);
#endif
- if ((np = getnetbyname(name)) != (struct netent *) NULL) {
+ np = getnetbyname(name);
+ if (np != NULL) {
s_in->sin_addr.s_addr = htonl(np->n_net);
return 1;
}
#endif
#ifdef DEBUG
- bb_error_msg("gethostbyname (%s)", name);
+ bb_error_msg("gethostbyname(%s)", name);
#endif
- if ((hp = gethostbyname(name)) == (struct hostent *) NULL) {
+ hp = gethostbyname(name);
+ if (hp == NULL) {
return -1;
}
- memcpy((char *) &s_in->sin_addr, (char *) hp->h_addr_list[0],
- sizeof(struct in_addr));
-
+ memcpy(&s_in->sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
return 0;
}
struct addr *next;
};
-static struct addr *INET_nn = NULL; /* addr-to-name cache */
+static struct addr *INET_nn = NULL; /* addr-to-name cache */
/* numeric: & 0x8000: default instead of *,
* & 0x4000: host instead of net,
struct hostent *ent;
struct netent *np;
struct addr *pn;
- unsigned long ad, host_ad;
+ uint32_t ad, host_ad;
int host = 0;
/* Grmpf. -FvK */
s_in->sin_family);
#endif
errno = EAFNOSUPPORT;
- return (-1);
+ return -1;
}
- ad = (unsigned long) s_in->sin_addr.s_addr;
+ ad = s_in->sin_addr.s_addr;
#ifdef DEBUG
- bb_error_msg("rresolve: %08lx, mask %08x, num %08x", ad, netmask, numeric);
+ bb_error_msg("rresolve: %08x, mask %08x, num %08x", (unsigned)ad, netmask, numeric);
#endif
if (ad == INADDR_ANY) {
if ((numeric & 0x0FFF) == 0) {
if (numeric & 0x8000)
- safe_strncpy(name, bb_INET_default, len);
+ safe_strncpy(name, bb_str_default, len);
else
safe_strncpy(name, "*", len);
- return (0);
+ return 0;
}
}
if (numeric & 0x0FFF) {
safe_strncpy(name, inet_ntoa(s_in->sin_addr), len);
- return (0);
+ return 0;
}
if ((ad & (~netmask)) != 0 || (numeric & 0x4000))
if (pn->addr.sin_addr.s_addr == ad && pn->host == host) {
safe_strncpy(name, pn->name, len);
#ifdef DEBUG
- bb_error_msg("rresolve: found %s %08lx in cache",
- (host ? "host" : "net"), ad);
+ bb_error_msg("rresolve: found %s %08x in cache",
+ (host ? "host" : "net"), (unsigned)ad);
#endif
- return (0);
+ return 0;
}
pn = pn->next;
}
ent = NULL;
if (host) {
#ifdef DEBUG
- bb_error_msg("gethostbyaddr (%08lx)", ad);
+ bb_error_msg("gethostbyaddr (%08x)", (unsigned)ad);
#endif
ent = gethostbyaddr((char *) &ad, 4, AF_INET);
if (ent != NULL) {
}
} else {
#ifdef DEBUG
- bb_error_msg("getnetbyaddr (%08lx)", host_ad);
+ bb_error_msg("getnetbyaddr (%08x)", (unsigned)host_ad);
#endif
np = getnetbyaddr(host_ad, AF_INET);
if (np != NULL) {
safe_strncpy(name, np->n_name, len);
}
}
- if ((ent == NULL) && (np == NULL)) {
+ if (!ent && !np) {
safe_strncpy(name, inet_ntoa(s_in->sin_addr), len);
}
- pn = (struct addr *) xmalloc(sizeof(struct addr));
+ pn = xmalloc(sizeof(struct addr));
pn->addr = *s_in;
pn->next = INET_nn;
pn->host = host;
- pn->name = bb_xstrdup(name);
+ pn->name = xstrdup(name);
INET_nn = pn;
-
- return (0);
+ return 0;
}
#ifdef CONFIG_FEATURE_IPV6
memset(&req, '\0', sizeof req);
req.ai_family = AF_INET6;
- if ((s = getaddrinfo(name, NULL, &req, &ai))) {
+ s = getaddrinfo(name, NULL, &req, &ai);
+ if (s) {
bb_error_msg("getaddrinfo: %s: %d", name, s);
return -1;
}
memcpy(sin6, ai->ai_addr, sizeof(struct sockaddr_in6));
-
freeaddrinfo(ai);
-
- return (0);
+ return 0;
}
#ifndef IN6_IS_ADDR_UNSPECIFIED
/* Grmpf. -FvK */
if (sin6->sin6_family != AF_INET6) {
#ifdef DEBUG
- bb_error_msg(_("rresolve: unsupport address family %d !\n"),
+ bb_error_msg("rresolve: unsupport address family %d!",
sin6->sin6_family);
#endif
errno = EAFNOSUPPORT;
- return (-1);
+ return -1;
}
if (numeric & 0x7FFF) {
inet_ntop(AF_INET6, &sin6->sin6_addr, name, len);
- return (0);
+ return 0;
}
if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
if (numeric & 0x8000) {
- strcpy(name, "default");
+ strcpy(name, bb_str_default);
} else {
- strcpy(name, "*");
+ name[0] = '*';
+ name[1] = '\0';
}
- return (0);
+ return 0;
}
- s = getnameinfo((struct sockaddr *) sin6, sizeof(struct sockaddr_in6), name, len, NULL, 0, 0);
+ s = getnameinfo((struct sockaddr *) sin6, sizeof(struct sockaddr_in6),
+ name, len, NULL, 0, 0);
if (s) {
bb_error_msg("getnameinfo failed");
return -1;
}
- return (0);
+ return 0;
}
#endif /* CONFIG_FEATURE_IPV6 */
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