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-rw-r--r--lib/libc/net/getnetnamadr.c174
1 files changed, 49 insertions, 125 deletions
diff --git a/lib/libc/net/getnetnamadr.c b/lib/libc/net/getnetnamadr.c
index cb5871b..6d9dbfa 100644
--- a/lib/libc/net/getnetnamadr.c
+++ b/lib/libc/net/getnetnamadr.c
@@ -36,142 +36,66 @@ static char rcsid[] = "$FreeBSD$";
#include <ctype.h>
#include <errno.h>
#include <string.h>
-
-#ifndef _PATH_NETCONF
-#define _PATH_NETCONF "/etc/host.conf"
-#endif
-
-enum service_type {
- SERVICE_NONE = 0,
- SERVICE_BIND,
- SERVICE_TABLE,
- SERVICE_NIS };
-#define SERVICE_MAX SERVICE_NIS
-
-static struct {
- const char *name;
- enum service_type type;
-} service_names[] = {
- { "hosts", SERVICE_TABLE },
- { "/etc/hosts", SERVICE_TABLE },
- { "hosttable", SERVICE_TABLE },
- { "htable", SERVICE_TABLE },
- { "bind", SERVICE_BIND },
- { "dns", SERVICE_BIND },
- { "domain", SERVICE_BIND },
- { "yp", SERVICE_NIS },
- { "yellowpages", SERVICE_NIS },
- { "nis", SERVICE_NIS },
- { 0, SERVICE_NONE }
+#include <stdarg.h>
+#include <nsswitch.h>
+
+extern int _ht_getnetbyname(void *, void *, va_list);
+extern int _dns_getnetbyname(void *, void *, va_list);
+extern int _nis_getnetbyname(void *, void *, va_list);
+extern int _ht_getnetbyaddr(void *, void *, va_list);
+extern int _dns_getnetbyaddr(void *, void *, va_list);
+extern int _nis_getnetbyaddr(void *, void *, va_list);
+
+/* Network lookup order if nsswitch.conf is broken or nonexistant */
+static const ns_src default_src[] = {
+ { NSSRC_FILES, NS_SUCCESS },
+ { NSSRC_DNS, NS_SUCCESS },
+ { 0 }
};
-static enum service_type service_order[SERVICE_MAX + 1];
-static int service_done = 0;
-
-static enum service_type
-get_service_name(const char *name) {
- int i;
- for(i = 0; service_names[i].type != SERVICE_NONE; i++) {
- if(!strcasecmp(name, service_names[i].name)) {
- return service_names[i].type;
- }
- }
- return SERVICE_NONE;
-}
-
-static void
-init_services()
-{
- char *cp, *p, buf[BUFSIZ];
- register int cc = 0;
- FILE *fd;
-
- if ((fd = (FILE *)fopen(_PATH_NETCONF, "r")) == NULL) {
- /* make some assumptions */
- service_order[0] = SERVICE_TABLE;
- service_order[1] = SERVICE_NONE;
- } else {
- while (fgets(buf, BUFSIZ, fd) != NULL && cc < SERVICE_MAX) {
- if(buf[0] == '#')
- continue;
-
- p = buf;
- while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0')
- ;
- if (cp == NULL)
- continue;
- do {
- if (isalpha((unsigned char)cp[0])) {
- service_order[cc] = get_service_name(cp);
- if(service_order[cc] != SERVICE_NONE)
- cc++;
- }
- while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0')
- ;
- } while(cp != NULL && cc < SERVICE_MAX);
- }
- service_order[cc] = SERVICE_NONE;
- fclose(fd);
- }
- service_done = 1;
-}
-
struct netent *
getnetbyname(const char *name)
{
struct netent *hp = 0;
- int nserv = 0;
-
- if (!service_done)
- init_services();
-
- while (!hp) {
- switch (service_order[nserv]) {
- case SERVICE_NONE:
- return NULL;
- case SERVICE_TABLE:
- hp = _getnetbyhtname(name);
- break;
- case SERVICE_BIND:
- hp = _getnetbydnsname(name);
- break;
- case SERVICE_NIS:
- hp = _getnetbynisname(name);
- break;
- }
- nserv++;
- }
- return hp;
+ int rval;
+
+
+ static const ns_dtab dtab[] = {
+ NS_FILES_CB(_ht_getnetbyname, NULL)
+ { NSSRC_DNS, _dns_getnetbyname, NULL },
+ NS_NIS_CB(_nis_getnetbyname, NULL) /* force -DHESIOD */
+ { 0 }
+ };
+
+ rval = nsdispatch((void *)&hp, dtab, NSDB_NETWORKS, "getnetbyname",
+ default_src, name);
+
+ if (rval != NS_SUCCESS)
+ return NULL;
+ else
+ return hp;
}
struct netent *
-getnetbyaddr(addr, af)
- u_long addr;
- int af;
+getnetbyaddr(u_long addr, int af)
{
struct netent *hp = 0;
- int nserv = 0;
-
- if (!service_done)
- init_services();
-
- while (!hp) {
- switch (service_order[nserv]) {
- case SERVICE_NONE:
- return 0;
- case SERVICE_TABLE:
- hp = _getnetbyhtaddr(addr, af);
- break;
- case SERVICE_BIND:
- hp = _getnetbydnsaddr(addr, af);
- break;
- case SERVICE_NIS:
- hp = _getnetbynisaddr(addr, af);
- break;
- }
- nserv++;
- }
- return hp;
+ int rval;
+
+ static const ns_dtab dtab[] = {
+ NS_FILES_CB(_ht_getnetbyaddr, NULL)
+ { NSSRC_DNS, _dns_getnetbyaddr, NULL },
+ NS_NIS_CB(_nis_getnetbyaddr, NULL) /* force -DHESIOD */
+ { 0 }
+ };
+
+ rval = nsdispatch((void *)&hp, dtab, NSDB_HOSTS, "getnetbyaddr",
+ default_src, addr, af);
+
+ if (rval != NS_SUCCESS)
+ return NULL;
+ else
+ return hp;
}
void
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