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Cosmetic changes and paranoia checks:

Browse Source 
ypbind.c:
Make fewer assumtions about the state of the dom_alive and dom_broadcasting
flags in roc_received().
Cosmetic changes and paranoia checks:

ypbind.c:
Make fewer assumtions about the state of the dom_alive and dom_broadcasting
flags in roc_received().

If select() fails, use syslog() to report the error rather than perror().

Check that all our malloc()s succeed. Report malloc() failure in
ypbindproc_setdom_2() to callers.

yplib.c:

Use #defined constants in ypbinderr_string() rather than hard-coded values.
This commit is contained in:
Bill Paul 1995-05-03 18:34:22 +00:00
parent 62967ca2b2
commit 90b434aeb0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=8246
1 changed files with 38 additions and 21 deletions
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59
usr.sbin/ypbind/ypbind.c
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@ -28,7 +28,7 @@
*/
#ifndef LINT
static char rcsid[] = "$Id: ypbind.c,v 1.7 1995/04/21 18:04:36 wpaul Exp $";
static char rcsid[] = "$Id: ypbind.c,v 1.8 1995/04/26 19:03:14 wpaul Exp $";
#endif
#include <sys/param.h>
@ -151,6 +151,11 @@ CLIENT *clnt;
if(ypdb==NULL) {
ypdb = (struct _dom_binding *)malloc(sizeof *ypdb);
if (ypdb == NULL) {
syslog(LOG_WARNING, "malloc: %s", strerror(errno));
res.ypbind_respbody.ypbind_error = YPBIND_ERR_RESC;
return;
}
bzero((char *)ypdb, sizeof *ypdb);
strncpy(ypdb->dom_domain, argp, sizeof ypdb->dom_domain);
ypdb->dom_vers = YPVERS;
@ -171,6 +176,7 @@ CLIENT *clnt;
return &res;
res.ypbind_status = YPBIND_SUCC_VAL;
res.ypbind_respbody.ypbind_error = 0; /* Success */
res.ypbind_respbody.ypbind_bindinfo.ypbind_binding_addr.s_addr =
ypdb->dom_server_addr.sin_addr.s_addr;
res.ypbind_respbody.ypbind_bindinfo.ypbind_binding_port =
@ -361,6 +367,10 @@ char **argv;
/* build initial domain binding, make it "unsuccessful" */
ypbindlist = (struct _dom_binding *)malloc(sizeof *ypbindlist);
if (ypbindlist == NULL) {
perror("malloc");
exit(1);
}
bzero((char *)ypbindlist, sizeof *ypbindlist);
strncpy(ypbindlist->dom_domain, domainname, sizeof ypbindlist->dom_domain);
ypbindlist->dom_vers = YPVERS;
@ -376,7 +386,7 @@ char **argv;
for (i = 0; i < FD_SETSIZE; i++)
child_fds[i] = -1;
openlog(argv[0], LOG_PID, LOG_AUTH);
openlog(argv[0], LOG_PID, LOG_DAEMON);
while(1) {
fdsr = svc_fdset;
@ -394,8 +404,7 @@ char **argv;
reaper();
break;
case -1:
perror("select");
exit(0);
syslog(LOG_WARNING, "select: %s", strerror(errno));
break;
default:
for(i = 0; i < FD_SETSIZE; i++) {
@ -446,9 +455,9 @@ int i;
struct sockaddr_in addr;
if (read(i, &buf, sizeof(buf)) < 0)
syslog(LOG_WARNING, "could not read from child");
syslog(LOG_WARNING, "could not read from child: %s", strerror(errno));
if (read(i, &addr, sizeof(struct sockaddr_in)) < 0)
syslog(LOG_WARNING, "could not read from child");
syslog(LOG_WARNING, "could not read from child: %s", strerror(errno));
rpc_received((char *)&buf, &addr, 0);
}
@ -648,7 +657,6 @@ int force;
if(dom==NULL)
return;
for(ypdb=ypbindlist; ypdb; ypdb=ypdb->dom_pnext)
if( strcmp(ypdb->dom_domain, dom) == 0)
break;
@ -658,28 +666,37 @@ int force;
syslog(LOG_WARNING, "Rejected NIS server on [%s/%d] for domain %s.",
inet_ntoa(raddrp->sin_addr), ntohs(raddrp->sin_port),
dom);
if (ypdb != NULL)
ypdb->dom_alive = -1;
if (ypdb != NULL) {
ypdb->dom_broadcasting = 0;
ypdb->dom_alive = 0;
}
return;
}
if(ypdb==NULL) {
if(force==0)
return;
ypdb = (struct _dom_binding *)malloc(sizeof *ypdb);
bzero((char *)ypdb, sizeof *ypdb);
strncpy(ypdb->dom_domain, dom, sizeof ypdb->dom_domain);
ypdb->dom_lockfd = -1;
ypdb->dom_default = 0;
ypdb->dom_pnext = ypbindlist;
ypbindlist = ypdb;
}
if (raddrp->sin_addr.s_addr == (long)0) {
ypdb->dom_broadcasting = 0;
ypdb->dom_alive = 0;
return;
}
if(ypdb==NULL) {
if (force == 0)
return;
ypdb = (struct _dom_binding *)malloc(sizeof *ypdb);
if (ypdb == NULL) {
syslog(LOG_WARNING, "malloc: %s", strerror(errno));
return;
}
bzero((char *)ypdb, sizeof *ypdb);
strncpy(ypdb->dom_domain, dom, sizeof ypdb->dom_domain);
ypdb->dom_lockfd = -1;
ypdb->dom_default = 0;
ypdb->dom_alive = 0;
ypdb->dom_broadcasting = 0;
ypdb->dom_pnext = ypbindlist;
ypbindlist = ypdb;
}
/* We've recovered from a crash: inform the world. */
if (ypdb->dom_vers = -1 && ypdb->dom_server_addr.sin_addr.s_addr)
syslog(LOG_WARNING, "NIS server for domain %s OK",