#endif
#ifdef L_inet_ntoa
-
-char *inet_ntoa(in)
-struct in_addr in;
+char *inet_ntoa_r(struct in_addr in, char buf[16])
{
- static char buf[16]; /* max 12 digits + 3 '.'s + 1 nul */
-
unsigned long addr = ntohl(in.s_addr);
int i;
char *p, *q;
return p+1;
}
+
+char *inet_ntoa(struct in_addr in)
+{
+ static char buf[16]; /* max 12 digits + 3 '.'s + 1 nul */
+ return(inet_ntoa_r(in, buf));
+}
#endif
#ifdef L_inet_makeaddr
#include <netdb.h>
#include <arpa/inet.h>
-#define MAXALIASES 35
+#ifdef __UCLIBC_HAS_THREADS__
+#include <pthread.h>
+static pthread_mutex_t mylock = PTHREAD_MUTEX_INITIALIZER;
+# define LOCK pthread_mutex_lock(&mylock)
+# define UNLOCK pthread_mutex_unlock(&mylock);
+#else
+# define LOCK
+# define UNLOCK
+#endif
+
+
+
+#define MAXALIASES 35
static const char NETDB[] = _PATH_NETWORKS;
static FILE *netf = NULL;
static char line[BUFSIZ+1];
static struct netent net;
static char *net_aliases[MAXALIASES];
-static char *any(char *, char *);
int _net_stayopen;
-void
-setnetent(f)
- int f;
+void setnetent(int f)
{
- if (netf == NULL)
- netf = fopen(NETDB, "r" );
- else
- rewind(netf);
- _net_stayopen |= f;
+ LOCK;
+ if (netf == NULL)
+ netf = fopen(NETDB, "r" );
+ else
+ rewind(netf);
+ _net_stayopen |= f;
+ UNLOCK;
+ return;
}
-void
-endnetent()
+void endnetent(void)
{
- if (netf) {
- fclose(netf);
- netf = NULL;
- }
- _net_stayopen = 0;
+ LOCK;
+ if (netf) {
+ fclose(netf);
+ netf = NULL;
+ }
+ _net_stayopen = 0;
+ UNLOCK;
}
-struct netent *
-getnetent()
+static char * any(register char *cp, char *match)
{
- char *p;
- register char *cp, **q;
+ register char *mp, c;
- if (netf == NULL && (netf = fopen(NETDB, "r" )) == NULL)
- return (NULL);
-again:
- p = fgets(line, BUFSIZ, netf);
- if (p == NULL)
- return (NULL);
- if (*p == '#')
- goto again;
- cp = any(p, "#\n");
- if (cp == NULL)
- goto again;
- *cp = '\0';
- net.n_name = p;
- cp = any(p, " \t");
- if (cp == NULL)
- goto again;
- *cp++ = '\0';
- while (*cp == ' ' || *cp == '\t')
- cp++;
- p = any(cp, " \t");
- if (p != NULL)
- *p++ = '\0';
- net.n_net = inet_network(cp);
- net.n_addrtype = AF_INET;
- q = net.n_aliases = net_aliases;
- if (p != NULL)
- cp = p;
- while (cp && *cp) {
- if (*cp == ' ' || *cp == '\t') {
- cp++;
- continue;
- }
- if (q < &net_aliases[MAXALIASES - 1])
- *q++ = cp;
- cp = any(cp, " \t");
- if (cp != NULL)
- *cp++ = '\0';
- }
- *q = NULL;
- return (&net);
+ while ((c = *cp)) {
+ for (mp = match; *mp; mp++)
+ if (*mp == c)
+ return (cp);
+ cp++;
+ }
+ return ((char *)0);
}
-static char *
-any(cp, match)
- register char *cp;
- char *match;
+struct netent * getnetent(void)
{
- register char *mp, c;
+ char *p;
+ register char *cp, **q;
- while ((c = *cp)) {
- for (mp = match; *mp; mp++)
- if (*mp == c)
- return (cp);
- cp++;
+ LOCK;
+ if (netf == NULL && (netf = fopen(NETDB, "r" )) == NULL) {
+ UNLOCK;
+ return (NULL);
+ }
+again:
+ p = fgets(line, BUFSIZ, netf);
+ if (p == NULL) {
+ UNLOCK;
+ return (NULL);
+ }
+ if (*p == '#')
+ goto again;
+ cp = any(p, "#\n");
+ if (cp == NULL)
+ goto again;
+ *cp = '\0';
+ net.n_name = p;
+ cp = any(p, " \t");
+ if (cp == NULL)
+ goto again;
+ *cp++ = '\0';
+ while (*cp == ' ' || *cp == '\t')
+ cp++;
+ p = any(cp, " \t");
+ if (p != NULL)
+ *p++ = '\0';
+ net.n_net = inet_network(cp);
+ net.n_addrtype = AF_INET;
+ q = net.n_aliases = net_aliases;
+ if (p != NULL)
+ cp = p;
+ while (cp && *cp) {
+ if (*cp == ' ' || *cp == '\t') {
+ cp++;
+ continue;
}
- return ((char *)0);
+ if (q < &net_aliases[MAXALIASES - 1])
+ *q++ = cp;
+ cp = any(cp, " \t");
+ if (cp != NULL)
+ *cp++ = '\0';
+ }
+ *q = NULL;
+ UNLOCK;
+ return (&net);
}
+
*/
#define __FORCE_GLIBC
+#define _GNU_SOURCE
#include <features.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <string.h>
+#ifdef __UCLIBC_HAS_THREADS__
+#include <pthread.h>
+static pthread_mutex_t mylock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+# define LOCK pthread_mutex_lock(&mylock)
+# define UNLOCK pthread_mutex_unlock(&mylock);
+#else
+# define LOCK
+# define UNLOCK
+#endif
+
+
+
#define MAXALIASES 35
static FILE *protof = NULL;
void setprotoent(int f)
{
- if (protof == NULL)
- protof = fopen(_PATH_PROTOCOLS, "r" );
- else
- rewind(protof);
- proto_stayopen |= f;
+ LOCK;
+ if (protof == NULL)
+ protof = fopen(_PATH_PROTOCOLS, "r" );
+ else
+ rewind(protof);
+ proto_stayopen |= f;
+ UNLOCK;
}
void endprotoent(void)
{
- if (protof) {
- fclose(protof);
- protof = NULL;
- }
- proto_stayopen = 0;
+ LOCK;
+ if (protof) {
+ fclose(protof);
+ protof = NULL;
+ }
+ proto_stayopen = 0;
+ UNLOCK;
}
struct protoent * getprotoent(void)
{
- char *p;
- register char *cp, **q;
+ char *p;
+ register char *cp, **q;
- if (protof == NULL && (protof = fopen(_PATH_PROTOCOLS, "r" )) == NULL)
- return (NULL);
+ LOCK;
+ if (protof == NULL && (protof = fopen(_PATH_PROTOCOLS, "r" )) == NULL) {
+ UNLOCK;
+ return (NULL);
+ }
again:
- if ((p = fgets(line, BUFSIZ, protof)) == NULL)
- return (NULL);
- if (*p == '#')
- goto again;
- cp = strpbrk(p, "#\n");
- if (cp == NULL)
- goto again;
- *cp = '\0';
- proto.p_name = p;
- cp = strpbrk(p, " \t");
- if (cp == NULL)
- goto again;
- *cp++ = '\0';
- while (*cp == ' ' || *cp == '\t')
+ if ((p = fgets(line, BUFSIZ, protof)) == NULL) {
+ UNLOCK;
+ return (NULL);
+ }
+
+ if (*p == '#')
+ goto again;
+ cp = strpbrk(p, "#\n");
+ if (cp == NULL)
+ goto again;
+ *cp = '\0';
+ proto.p_name = p;
+ cp = strpbrk(p, " \t");
+ if (cp == NULL)
+ goto again;
+ *cp++ = '\0';
+ while (*cp == ' ' || *cp == '\t')
+ cp++;
+ p = strpbrk(cp, " \t");
+ if (p != NULL)
+ *p++ = '\0';
+ proto.p_proto = atoi(cp);
+ q = proto.p_aliases = proto_aliases;
+ if (p != NULL) {
+ cp = p;
+ while (cp && *cp) {
+ if (*cp == ' ' || *cp == '\t') {
cp++;
- p = strpbrk(cp, " \t");
- if (p != NULL)
- *p++ = '\0';
- proto.p_proto = atoi(cp);
- q = proto.p_aliases = proto_aliases;
- if (p != NULL) {
- cp = p;
- while (cp && *cp) {
- if (*cp == ' ' || *cp == '\t') {
- cp++;
- continue;
- }
- if (q < &proto_aliases[MAXALIASES - 1])
- *q++ = cp;
- cp = strpbrk(cp, " \t");
- if (cp != NULL)
- *cp++ = '\0';
- }
+ continue;
+ }
+ if (q < &proto_aliases[MAXALIASES - 1])
+ *q++ = cp;
+ cp = strpbrk(cp, " \t");
+ if (cp != NULL)
+ *cp++ = '\0';
}
- *q = NULL;
- return (&proto);
+ }
+ *q = NULL;
+ UNLOCK;
+ return (&proto);
}
struct protoent * getprotobyname(const char *name)
{
- register struct protoent *p;
- register char **cp;
-
- setprotoent(proto_stayopen);
- while ((p = getprotoent()) != NULL) {
- if (strcmp(p->p_name, name) == 0)
- break;
- for (cp = p->p_aliases; *cp != 0; cp++)
- if (strcmp(*cp, name) == 0)
- goto found;
- }
+ register struct protoent *p;
+ register char **cp;
+
+ LOCK;
+ setprotoent(proto_stayopen);
+ while ((p = getprotoent()) != NULL) {
+ if (strcmp(p->p_name, name) == 0)
+ break;
+ for (cp = p->p_aliases; *cp != 0; cp++)
+ if (strcmp(*cp, name) == 0)
+ goto found;
+ }
found:
- if (!proto_stayopen)
- endprotoent();
- return (p);
+ if (!proto_stayopen)
+ endprotoent();
+ UNLOCK;
+ return (p);
}
struct protoent * getprotobynumber(int proto)
{
- register struct protoent *p;
-
- setprotoent(proto_stayopen);
- while ((p = getprotoent()) != NULL)
- if (p->p_proto == proto)
- break;
- if (!proto_stayopen)
- endprotoent();
- return (p);
+ register struct protoent *p;
+
+ LOCK;
+ setprotoent(proto_stayopen);
+ while ((p = getprotoent()) != NULL)
+ if (p->p_proto == proto)
+ break;
+ if (!proto_stayopen)
+ endprotoent();
+ UNLOCK;
+ return (p);
}
#define __FORCE_GLIBC
+#define _GNU_SOURCE
#include <features.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <errno.h>
+
+
+#ifdef __UCLIBC_HAS_THREADS__
+#include <pthread.h>
+static pthread_mutex_t mylock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+# define LOCK pthread_mutex_lock(&mylock)
+# define UNLOCK pthread_mutex_unlock(&mylock);
+#else
+# define LOCK
+# define UNLOCK
+#endif
+
+
+
+
#define MAXALIASES 35
static FILE *servf = NULL;
void setservent(int f)
{
- if (servf == NULL)
- servf = fopen(_PATH_SERVICES, "r" );
- else
- rewind(servf);
- serv_stayopen |= f;
+ LOCK;
+ if (servf == NULL)
+ servf = fopen(_PATH_SERVICES, "r" );
+ else
+ rewind(servf);
+ serv_stayopen |= f;
+ UNLOCK;
}
void endservent(void)
{
- if (servf) {
- fclose(servf);
- servf = NULL;
- }
- serv_stayopen = 0;
+ LOCK;
+ if (servf) {
+ fclose(servf);
+ servf = NULL;
+ }
+ serv_stayopen = 0;
+ UNLOCK;
}
struct servent * getservent(void)
{
- struct servent *result;
- getservent_r(&serv, buf, sizeof(buf), &result);
- return result;
+ struct servent *result;
+ getservent_r(&serv, buf, sizeof(buf), &result);
+ return result;
}
struct servent *getservbyname(const char *name, const char *proto)
{
- struct servent *result;
- getservbyname_r(name, proto, &serv, buf, sizeof(buf), &result);
- return result;
+ struct servent *result;
+ getservbyname_r(name, proto, &serv, buf, sizeof(buf), &result);
+ return result;
}
struct servent * getservbyport(int port, const char *proto)
{
- struct servent *result;
- getservbyport_r(port, proto, &serv, buf, sizeof(buf), &result);
- return result;
+ struct servent *result;
+ getservbyport_r(port, proto, &serv, buf, sizeof(buf), &result);
+ return result;
}
int getservent_r(struct servent * result_buf,
char * buf, size_t buflen,
struct servent ** result)
{
- char *p;
- register char *cp, **q;
- char **serv_aliases;
- char *line;
+ char *p;
+ register char *cp, **q;
+ char **serv_aliases;
+ char *line;
- *result=NULL;
+ *result=NULL;
- if (buflen < sizeof(*serv_aliases)*MAXALIASES) {
- errno=ERANGE;
- return errno;
- }
- serv_aliases=(char **)buf;
- buf+=sizeof(*serv_aliases)*MAXALIASES;
- buflen-=sizeof(*serv_aliases)*MAXALIASES;
-
- if (buflen < BUFSIZ+1) {
- errno=ERANGE;
- return errno;
- }
- line=buf;
- buf+=BUFSIZ+1;
- buflen-=BUFSIZ+1;
+ if (buflen < sizeof(*serv_aliases)*MAXALIASES) {
+ errno=ERANGE;
+ return errno;
+ }
+ LOCK;
+ serv_aliases=(char **)buf;
+ buf+=sizeof(*serv_aliases)*MAXALIASES;
+ buflen-=sizeof(*serv_aliases)*MAXALIASES;
+
+ if (buflen < BUFSIZ+1) {
+ UNLOCK;
+ errno=ERANGE;
+ return errno;
+ }
+ line=buf;
+ buf+=BUFSIZ+1;
+ buflen-=BUFSIZ+1;
- if (servf == NULL && (servf = fopen(_PATH_SERVICES, "r" )) == NULL)
- return errno;
+ if (servf == NULL && (servf = fopen(_PATH_SERVICES, "r" )) == NULL) {
+ UNLOCK;
+ return errno;
+ }
again:
- if ((p = fgets(line, BUFSIZ, servf)) == NULL)
- return TRY_AGAIN;
- if (*p == '#')
- goto again;
- cp = strpbrk(p, "#\n");
- if (cp == NULL)
- goto again;
- *cp = '\0';
- result_buf->s_name = p;
- p = strpbrk(p, " \t");
- if (p == NULL)
- goto again;
- *p++ = '\0';
- while (*p == ' ' || *p == '\t')
- p++;
- cp = strpbrk(p, ",/");
- if (cp == NULL)
- goto again;
+ if ((p = fgets(line, BUFSIZ, servf)) == NULL) {
+ UNLOCK;
+ return TRY_AGAIN;
+ }
+ if (*p == '#')
+ goto again;
+ cp = strpbrk(p, "#\n");
+ if (cp == NULL)
+ goto again;
+ *cp = '\0';
+ result_buf->s_name = p;
+ p = strpbrk(p, " \t");
+ if (p == NULL)
+ goto again;
+ *p++ = '\0';
+ while (*p == ' ' || *p == '\t')
+ p++;
+ cp = strpbrk(p, ",/");
+ if (cp == NULL)
+ goto again;
+ *cp++ = '\0';
+ result_buf->s_port = htons((u_short)atoi(p));
+ result_buf->s_proto = cp;
+ q = result_buf->s_aliases = serv_aliases;
+ cp = strpbrk(cp, " \t");
+ if (cp != NULL)
*cp++ = '\0';
- result_buf->s_port = htons((u_short)atoi(p));
- result_buf->s_proto = cp;
- q = result_buf->s_aliases = serv_aliases;
+ while (cp && *cp) {
+ if (*cp == ' ' || *cp == '\t') {
+ cp++;
+ continue;
+ }
+ if (q < &serv_aliases[MAXALIASES - 1])
+ *q++ = cp;
cp = strpbrk(cp, " \t");
if (cp != NULL)
- *cp++ = '\0';
- while (cp && *cp) {
- if (*cp == ' ' || *cp == '\t') {
- cp++;
- continue;
- }
- if (q < &serv_aliases[MAXALIASES - 1])
- *q++ = cp;
- cp = strpbrk(cp, " \t");
- if (cp != NULL)
- *cp++ = '\0';
- }
- *q = NULL;
- *result=result_buf;
- return 0;
+ *cp++ = '\0';
+ }
+ *q = NULL;
+ *result=result_buf;
+ UNLOCK;
+ return 0;
}
-int getservbyname_r(const char *name, const char *proto,
- struct servent * result_buf,
- char * buf, size_t buflen,
- struct servent ** result)
+int getservbyname_r(const char *name, const char *proto,
+ struct servent * result_buf, char * buf, size_t buflen,
+ struct servent ** result)
{
- register char **cp;
- int ret;
-
- setservent(serv_stayopen);
- while (!(ret=getservent_r(result_buf, buf, buflen, result))) {
- if (strcmp(name, result_buf->s_name) == 0)
- goto gotname;
- for (cp = result_buf->s_aliases; *cp; cp++)
- if (strcmp(name, *cp) == 0)
- goto gotname;
- continue;
+ register char **cp;
+ int ret;
+
+ LOCK;
+ setservent(serv_stayopen);
+ while (!(ret=getservent_r(result_buf, buf, buflen, result))) {
+ if (strcmp(name, result_buf->s_name) == 0)
+ goto gotname;
+ for (cp = result_buf->s_aliases; *cp; cp++)
+ if (strcmp(name, *cp) == 0)
+ goto gotname;
+ continue;
gotname:
- if (proto == 0 || strcmp(result_buf->s_proto, proto) == 0)
- break;
- }
- if (!serv_stayopen)
- endservent();
- return *result?0:ret;
+ if (proto == 0 || strcmp(result_buf->s_proto, proto) == 0)
+ break;
+ }
+ if (!serv_stayopen)
+ endservent();
+ UNLOCK;
+ return *result?0:ret;
}
-int getservbyport_r(int port, const char *proto,
- struct servent * result_buf,
- char * buf, size_t buflen,
- struct servent ** result)
+int getservbyport_r(int port, const char *proto,
+ struct servent * result_buf, char * buf,
+ size_t buflen, struct servent ** result)
{
- int ret;
-
- setservent(serv_stayopen);
- while (!(ret=getservent_r(result_buf, buf, buflen, result))) {
- if (result_buf->s_port != port)
- continue;
- if (proto == 0 || strcmp(result_buf->s_proto, proto) == 0)
- break;
- }
- if (!serv_stayopen)
- endservent();
- return *result?0:ret;
+ int ret;
+
+ LOCK;
+ setservent(serv_stayopen);
+ while (!(ret=getservent_r(result_buf, buf, buflen, result))) {
+ if (result_buf->s_port != port)
+ continue;
+ if (proto == 0 || strcmp(result_buf->s_proto, proto) == 0)
+ break;
+ }
+ if (!serv_stayopen)
+ endservent();
+ UNLOCK;
+ return *result?0:ret;
}
#endif /* DEBUG */
+/* Global stuff... */
+extern int nameservers;
+extern char * nameserver[MAX_SERVERS];
+extern int searchdomains;
+extern char * searchdomain[MAX_SEARCH];
+
+
+
+/* Structs */
struct resolv_header {
int id;
int qr,opcode,aa,tc,rd,ra,rcode;
GET_HOSTS_BYADDR,
};
-
-extern int nameservers;
-extern char * nameserver[MAX_SERVERS];
-extern int searchdomains;
-extern char * searchdomain[MAX_SEARCH];
+/* function prototypes */
extern int get_hosts_byname_r(const char * name, int type,
struct hostent * result_buf,
char * buf, size_t buflen,
char * buf, size_t buflen,
struct hostent ** result,
int * h_errnop);
-extern int resolve_address(const char * address, int nscount,
- char ** nsip, struct in_addr * in);
-extern int resolve_mailbox(const char * address, int nscount,
- char ** nsip, struct in_addr * in);
extern int dns_lookup(const char * name, int type, int nscount,
char ** nsip, unsigned char ** outpacket, struct resolv_answer * a);
-int encode_dotted(const char * dotted, unsigned char * dest, int maxlen);
-int decode_dotted(const unsigned char * message, int offset,
+extern int encode_dotted(const char * dotted, unsigned char * dest, int maxlen);
+extern int decode_dotted(const unsigned char * message, int offset,
char * dest, int maxlen);
-int length_dotted(const unsigned char * message, int offset);
-int encode_header(struct resolv_header * h, unsigned char * dest, int maxlen);
-int decode_header(unsigned char * data, struct resolv_header * h);
-int encode_question(struct resolv_question * q,
+extern int length_dotted(const unsigned char * message, int offset);
+extern int encode_header(struct resolv_header * h, unsigned char * dest, int maxlen);
+extern int decode_header(unsigned char * data, struct resolv_header * h);
+extern int encode_question(struct resolv_question * q,
unsigned char * dest, int maxlen);
-int decode_question(unsigned char * message, int offset,
+extern int decode_question(unsigned char * message, int offset,
struct resolv_question * q);
-int encode_answer(struct resolv_answer * a,
+extern int encode_answer(struct resolv_answer * a,
unsigned char * dest, int maxlen);
-int decode_answer(unsigned char * message, int offset,
+extern int decode_answer(unsigned char * message, int offset,
struct resolv_answer * a);
-int length_question(unsigned char * message, int offset);
+extern int length_question(unsigned char * message, int offset);
extern int open_nameservers(void);
int decode_question(unsigned char *message, int offset,
struct resolv_question *q)
{
- char temp[256];
+ char temp[BUFSIZ];
int i;
i = decode_dotted(message, offset, temp, sizeof(temp));
int decode_answer(unsigned char *message, int offset,
struct resolv_answer *a)
{
- char temp[256];
+ char temp[BUFSIZ];
int i;
i = decode_dotted(message, offset, temp, sizeof(temp));
int dns_lookup(const char *name, int type, int nscount, char **nsip,
unsigned char **outpacket, struct resolv_answer *a)
{
- static int id = 1;
- int i, j, len, fd, pos;
- static int ns = 0;
+ int i, j, len, fd, pos, id, ns;
struct sockaddr_in sa;
#ifdef __UCLIBC_HAS_IPV6__
struct sockaddr_in6 sa6;
memset(packet, 0, PACKETSZ);
memset(&h, 0, sizeof(h));
- h.id = ++id;
+ id = (int) random();
+ h.id = id;
h.qdcount = 1;
h.rd = 1;
}
#endif
-#ifdef L_resolveaddress
-
-int resolve_address(const char *address, int nscount,
- char **nsip, struct in_addr *in)
-{
- unsigned char *packet;
- struct resolv_answer a;
- char temp[256];
- int i;
- int nest = 0;
-
- if (!address || !in)
- return -1;
-
- strncpy(temp, address, sizeof(temp));
-
- for (;;) {
-
- i = dns_lookup(temp, T_A, nscount, nsip, &packet, &a);
-
- if (i < 0)
- return -1;
-
- free(a.dotted);
-
- if (a.atype == T_CNAME) { /* CNAME */
- DPRINTF("Got a CNAME in resolve_address()\n");
- i = decode_dotted(packet, a.rdoffset, temp, sizeof(temp));
- free(packet);
-
- if (i < 0)
- return -1;
- if (++nest > MAX_RECURSE)
- return -1;
- continue;
- } else if (a.atype == T_A) { /* ADDRESS */
- free(packet);
- break;
- } else {
- free(packet);
- return -1;
- }
- }
-
- if (in)
- memcpy(in, a.rdata, INADDRSZ); /* IPv4 T_A */
-
- return 0;
-}
-#endif
-
-#ifdef L_resolvemailbox
-
-int resolve_mailbox(const char *address, int nscount,
- char **nsip, struct in_addr *in)
-{
- struct resolv_answer a;
- unsigned char *packet;
- char temp[256];
- int nest = 0;
- int i;
-
- if (!address || !in)
- return -1;
-
- /* look up mail exchange */
- i = dns_lookup(address, T_MX, nscount, nsip, &packet, &a);
-
- strncpy(temp, address, sizeof(temp));
-
- if (i >= 0) {
- i = decode_dotted(packet, a.rdoffset+2, temp, sizeof(temp));
- free(packet);
- }
-
- for (;;) {
-
- i = dns_lookup(temp, T_A, nscount, nsip, &packet, &a);
-
- if (i < 0)
- return -1;
-
- free(a.dotted);
-
- if (a.atype == T_CNAME) { /* CNAME */
- DPRINTF("Got a CNAME in resolve_mailbox()\n");
- i = decode_dotted(packet, a.rdoffset, temp, sizeof(temp));
- free(packet);
- if (i < 0)
- return i;
- if (++nest > MAX_RECURSE)
- return -1;
- continue;
- } else if (a.atype == T_A) { /* ADDRESS */
- free(packet);
- break;
- } else {
- free(packet);
- return -1;
- }
- }
-
- if (in)
- memcpy(in, a.rdata, INADDRSZ); /* IPv4 */
-
- return 0;
-}
-#endif
-
-
#ifdef L_opennameservers
int nameservers;
}
#endif
-
-#ifdef L_resolvename
-
-const char *resolve_name(const char *name, int mailbox)
-{
- struct in_addr in;
- int i;
-
- /* shortcut: is it a valid IP address to begin with? */
- if (inet_aton(name, &in))
- return name;
-
- open_nameservers();
-
- DPRINTF("looking up '%s', mailbox=%d, nameservers=%d\n",
- name, mailbox, nameservers);
-
- if (mailbox)
- i = resolve_mailbox(name, nameservers, nameserver, &in);
- else
- i = resolve_address(name, nameservers, nameserver, &in);
-
- if (i < 0)
- return 0;
-
- DPRINTF("success = '%s'\n", inet_ntoa(in));
-
- return inet_ntoa(in);
-}
-#endif
-
-
#ifdef L_gethostbyname
struct hostent *gethostbyname(const char *name)
#endif
-#ifdef L_endhostent
-extern int __stay_open;
-extern FILE * __gethostent_fp;
+#ifdef L_gethostent
+
+#ifdef __UCLIBC_HAS_THREADS__
+#include <pthread.h>
+static pthread_mutex_t mylock = PTHREAD_MUTEX_INITIALIZER;
+# define LOCK pthread_mutex_lock(&mylock)
+# define UNLOCK pthread_mutex_unlock(&mylock);
+#else
+# define LOCK
+# define UNLOCK
+#endif
+
+static int __stay_open;
+static FILE * __gethostent_fp;
+
void endhostent (void)
{
+ LOCK;
__stay_open = 0;
if (__gethostent_fp) {
fclose(__gethostent_fp);
}
+ UNLOCK;
}
-#endif
-#ifdef L_sethostent
-extern int __stay_open;
void sethostent (int stay_open)
{
+ LOCK;
__stay_open = stay_open;
+ UNLOCK;
}
-#endif
-#ifdef L_gethostent
-int __stay_open;
-FILE * __gethostent_fp;
struct hostent *gethostent (void)
{
- static struct hostent h;
+ static struct hostent h;
static char buf[
#ifndef __UCLIBC_HAS_IPV6__
sizeof(struct in_addr) + sizeof(struct in_addr *)*2 +
80/*namebuffer*/ + 2/* margin */];
struct hostent *host;
+ LOCK;
if (__gethostent_fp == NULL) {
__open_etc_hosts(&__gethostent_fp);
if (__gethostent_fp == NULL) {
+ UNLOCK;
return((struct hostent *)NULL);
}
}
if (__stay_open==0) {
fclose(__gethostent_fp);
}
+ UNLOCK;
return(host);
}
#endif
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