Bug Summary

File:src/usr.sbin/ypserv/ypserv/ypserv.c
Warning:line 361, column 3
Null pointer passed as 1st argument to memory copy function

Annotated Source Code

Press '?' to see keyboard shortcuts

clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name ypserv.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/usr.sbin/ypserv/ypserv/obj -resource-dir /usr/local/llvm16/lib/clang/16 -D DAEMON -D OPTDB -I /usr/src/usr.sbin/ypserv/ypserv/../common -I . -internal-isystem /usr/local/llvm16/lib/clang/16/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/usr.sbin/ypserv/ypserv/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fno-jump-tables -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/scan/2024-01-11-140451-98009-1 -x c /usr/src/usr.sbin/ypserv/ypserv/ypserv.c
1/* $OpenBSD: ypserv.c,v 1.45 2023/03/08 04:43:15 guenther Exp $ */
2
3/*
4 * Copyright (c) 1994 Mats O Jansson <moj@stacken.kth.se>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/types.h>
30#include <sys/socket.h>
31#include <sys/ioctl.h>
32#include <netinet/in.h>
33#include <rpcsvc/yp.h>
34#include "ypv1.h"
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <netdb.h>
39#include <signal.h>
40#include <errno(*__errno()).h>
41#include <util.h>
42#include <unistd.h>
43#include <fcntl.h>
44#include <rpc/pmap_clnt.h>
45#include <ndbm.h>
46#include <syslog.h>
47#include "acl.h"
48#include "yplog.h"
49#include "ypdef.h"
50#include "ypserv.h"
51#include <sys/wait.h>
52
53void ypdb_init(void);
54
55#ifdef DEBUG
56#define RPC_SVC_FG
57#endif
58
59#define _RPCSVC_CLOSEDOWN120 120
60static int _rpcpmstart; /* Started by a port monitor ? */
61static int _rpcfdtype; /* Whether Stream or Datagram ? */
62static int _rpcsvcdirty; /* Still serving ? */
63
64int usedns = FALSE(0);
65char *aclfile = NULL0;
66
67void sig_child(int);
68void sig_hup(int);
69volatile sig_atomic_t wantsighup;
70
71static void
72_msgout(char *msg)
73{
74#ifdef RPC_SVC_FG
75 if (_rpcpmstart)
76 syslog(LOG_ERR3, "%s", msg);
77 else
78 (void) fprintf(stderr(&__sF[2]), "%s\n", msg);
79#else
80 syslog(LOG_ERR3, "%s", msg);
81#endif
82}
83
84static void
85closedown(int sig)
86{
87 int save_errno = errno(*__errno());
88
89 if (_rpcsvcdirty == 0) {
90 int i, openfd;
91
92 if (_rpcfdtype == SOCK_DGRAM2)
93 exit(0);
94 for (i = 0, openfd = 0; i < svc_max_pollfd && openfd < 2; i++)
95 if (svc_pollfd[i].fd != -1)
96 openfd++;
97 if (openfd <= (_rpcpmstart ? 0 : 1))
98 _exit(0);
99 }
100 (void) alarm(_RPCSVC_CLOSEDOWN120);
101 errno(*__errno()) = save_errno;
102}
103
104static void
105ypprog_1(struct svc_req *rqstp, SVCXPRT *transp)
106{
107 union {
108 domainname ypoldproc_domain_1_arg;
109 domainname ypoldproc_domain_nonack_1_arg;
110 yprequest ypoldproc_match_1_arg;
111 yprequest ypoldproc_first_1_arg;
112 yprequest ypoldproc_next_1_arg;
113 yprequest ypoldproc_poll_1_arg;
114 yprequest ypoldproc_push_1_arg;
115 yprequest ypoldproc_pull_1_arg;
116 yprequest ypoldproc_get_1_arg;
117 } argument;
118 char *result;
119 xdrproc_t xdr_argument, xdr_result;
120 char *(*local)(char *, struct svc_req *);
121
122 _rpcsvcdirty = 1;
123 switch (rqstp->rq_proc) {
124 case YPOLDPROC_NULL((u_long)0):
125 xdr_argument = (xdrproc_t) xdr_void;
126 xdr_result = (xdrproc_t) xdr_void;
127 local = (char *(*)(char *, struct svc_req *)) ypoldproc_null_1_svc;
128 break;
129
130 case YPOLDPROC_DOMAIN((u_long)1):
131 xdr_argument = (xdrproc_t) xdr_domainname;
132 xdr_result = (xdrproc_t) xdr_bool;
133 local = (char *(*)(char *, struct svc_req *)) ypoldproc_domain_1_svc;
134 break;
135
136 case YPOLDPROC_DOMAIN_NONACK((u_long)2):
137 xdr_argument = (xdrproc_t) xdr_domainname;
138 xdr_result = (xdrproc_t) xdr_bool;
139 local = (char *(*)(char *, struct svc_req *)) ypoldproc_domain_nonack_1_svc;
140 break;
141
142 case YPOLDPROC_MATCH((u_long)3):
143 xdr_argument = (xdrproc_t) xdr_yprequest;
144 xdr_result = (xdrproc_t) xdr_ypresponse;
145 local = (char *(*)(char *, struct svc_req *)) ypoldproc_match_1_svc;
146 break;
147
148 case YPOLDPROC_FIRST((u_long)4):
149 xdr_argument = (xdrproc_t) xdr_yprequest;
150 xdr_result = (xdrproc_t) xdr_ypresponse;
151 local = (char *(*)(char *, struct svc_req *)) ypoldproc_first_1_svc;
152 break;
153
154 case YPOLDPROC_NEXT((u_long)5):
155 xdr_argument = (xdrproc_t) xdr_yprequest;
156 xdr_result = (xdrproc_t) xdr_ypresponse;
157 local = (char *(*)(char *, struct svc_req *)) ypoldproc_next_1_svc;
158 break;
159
160 case YPOLDPROC_POLL((u_long)6):
161 xdr_argument = (xdrproc_t) xdr_yprequest;
162 xdr_result = (xdrproc_t) xdr_ypresponse;
163 local = (char *(*)(char *, struct svc_req *)) ypoldproc_poll_1_svc;
164 break;
165
166 case YPOLDPROC_PUSH((u_long)7):
167 xdr_argument = (xdrproc_t) xdr_yprequest;
168 xdr_result = (xdrproc_t) xdr_void;
169 local = (char *(*)(char *, struct svc_req *)) ypoldproc_push_1_svc;
170 break;
171
172 case YPOLDPROC_PULL((u_long)8):
173 xdr_argument = (xdrproc_t) xdr_yprequest;
174 xdr_result = (xdrproc_t) xdr_void;
175 local = (char *(*)(char *, struct svc_req *)) ypoldproc_pull_1_svc;
176 break;
177
178 case YPOLDPROC_GET((u_long)9):
179 xdr_argument = (xdrproc_t) xdr_yprequest;
180 xdr_result = (xdrproc_t) xdr_void;
181 local = (char *(*)(char *, struct svc_req *)) ypoldproc_get_1_svc;
182 break;
183
184 default:
185 svcerr_noproc(transp);
186 _rpcsvcdirty = 0;
187 return;
188 }
189 (void) memset(&argument, 0, sizeof(argument));
190 if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)(*(transp)->xp_ops->xp_getargs)((transp), (xdr_argument
), ((caddr_t)&argument))) {
191 svcerr_decode(transp);
192 _rpcsvcdirty = 0;
193 return;
194 }
195 result = (*local)((char *)&argument, rqstp);
196 if (result != NULL0 && !svc_sendreply(transp, xdr_result, result)) {
197 svcerr_systemerr(transp);
198 }
199 if (!svc_freeargs(transp, xdr_argument, (caddr_t)&argument)(*(transp)->xp_ops->xp_freeargs)((transp), (xdr_argument
), ((caddr_t)&argument))) {
200 _msgout("unable to free arguments");
201 exit(1);
202 }
203 _rpcsvcdirty = 0;
204}
205
206static void
207ypprog_2(struct svc_req *rqstp, SVCXPRT *transp)
208{
209 union {
210 domainname ypproc_domain_2_arg;
211 domainname ypproc_domain_nonack_2_arg;
212 ypreq_key ypproc_match_2_arg;
213 ypreq_nokey ypproc_first_2_arg;
214 ypreq_key ypproc_next_2_arg;
215 ypreq_xfr ypproc_xfr_2_arg;
216 ypreq_nokey ypproc_all_2_arg;
217 ypreq_nokey ypproc_master_2_arg;
218 ypreq_nokey ypproc_order_2_arg;
219 domainname ypproc_maplist_2_arg;
220 } argument;
221 char *result;
222 xdrproc_t xdr_argument, xdr_result;
223 char *(*local)(char *, struct svc_req *);
224
225 _rpcsvcdirty = 1;
226 switch (rqstp->rq_proc) {
227 case YPPROC_NULL((u_long)0):
228 xdr_argument = (xdrproc_t) xdr_void;
229 xdr_result = (xdrproc_t) xdr_void;
230 local = (char *(*)(char *, struct svc_req *)) ypproc_null_2_svc;
231 break;
232
233 case YPPROC_DOMAIN((u_long)1):
234 xdr_argument = (xdrproc_t) xdr_domainname;
235 xdr_result = (xdrproc_t) xdr_bool;
236 local = (char *(*)(char *, struct svc_req *)) ypproc_domain_2_svc;
237 break;
238
239 case YPPROC_DOMAIN_NONACK((u_long)2):
240 xdr_argument = (xdrproc_t) xdr_domainname;
241 xdr_result = (xdrproc_t) xdr_bool;
242 local = (char *(*)(char *, struct svc_req *)) ypproc_domain_nonack_2_svc;
243 break;
244
245 case YPPROC_MATCH((u_long)3):
246 xdr_argument = (xdrproc_t) xdr_ypreq_key;
247 xdr_result = (xdrproc_t) xdr_ypresp_val;
248 local = (char *(*)(char *, struct svc_req *)) ypproc_match_2_svc;
249 break;
250
251 case YPPROC_FIRST((u_long)4):
252 xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
253 xdr_result = (xdrproc_t) xdr_ypresp_key_val;
254 local = (char *(*)(char *, struct svc_req *)) ypproc_first_2_svc;
255 break;
256
257 case YPPROC_NEXT((u_long)5):
258 xdr_argument = (xdrproc_t) xdr_ypreq_key;
259 xdr_result = (xdrproc_t) xdr_ypresp_key_val;
260 local = (char *(*)(char *, struct svc_req *)) ypproc_next_2_svc;
261 break;
262
263 case YPPROC_XFR((u_long)6):
264 xdr_argument = (xdrproc_t) xdr_ypreq_xfr;
265 xdr_result = (xdrproc_t) xdr_ypresp_xfr;
266 local = (char *(*)(char *, struct svc_req *)) ypproc_xfr_2_svc;
267 break;
268
269 case YPPROC_CLEAR((u_long)7):
270 xdr_argument = (xdrproc_t) xdr_void;
271 xdr_result = (xdrproc_t) xdr_void;
272 local = (char *(*)(char *, struct svc_req *)) ypproc_clear_2_svc;
273 break;
274
275 case YPPROC_ALL((u_long)8):
276 xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
277 xdr_result = (xdrproc_t) xdr_ypresp_all;
278 local = (char *(*)(char *, struct svc_req *)) ypproc_all_2_svc;
279 break;
280
281 case YPPROC_MASTER((u_long)9):
282 xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
283 xdr_result = (xdrproc_t) xdr_ypresp_master;
284 local = (char *(*)(char *, struct svc_req *)) ypproc_master_2_svc;
285 break;
286
287 case YPPROC_ORDER((u_long)10):
288 xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
289 xdr_result = (xdrproc_t) xdr_ypresp_order;
290 local = (char *(*)(char *, struct svc_req *)) ypproc_order_2_svc;
291 break;
292
293 case YPPROC_MAPLIST((u_long)11):
294 xdr_argument = (xdrproc_t) xdr_domainname;
295 xdr_result = (xdrproc_t) xdr_ypresp_maplist;
296 local = (char *(*)(char *, struct svc_req *)) ypproc_maplist_2_svc;
297 break;
298
299 default:
300 svcerr_noproc(transp);
301 _rpcsvcdirty = 0;
302 return;
303 }
304 (void) memset(&argument, 0, sizeof(argument));
305 if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)(*(transp)->xp_ops->xp_getargs)((transp), (xdr_argument
), ((caddr_t)&argument))) {
306 svcerr_decode(transp);
307 _rpcsvcdirty = 0;
308 return;
309 }
310 result = (*local)((char *)&argument, rqstp);
311 if (result != NULL0 && !svc_sendreply(transp, xdr_result, result)) {
312 svcerr_systemerr(transp);
313 }
314 if (!svc_freeargs(transp, xdr_argument, (caddr_t)&argument)(*(transp)->xp_ops->xp_freeargs)((transp), (xdr_argument
), ((caddr_t)&argument))) {
315 _msgout("unable to free arguments");
316 exit(1);
317 }
318 _rpcsvcdirty = 0;
319}
320
321static void
322hup(void)
323{
324 /* Handle the log. */
325 ypcloselog();
326 ypopenlog();
327
328 acl_reset();
329 if (aclfile != NULL0) {
330 yplog("sig_hup: reread %s", aclfile);
331 (void)acl_init(aclfile);
332 } else {
333 yplog("sig_hup: reread %s", YP_SECURENET_FILE"/var/yp/securenet");
334 (void)acl_securenet(YP_SECURENET_FILE"/var/yp/securenet");
335 }
336
337 ypdb_close_all();
338}
339
340static void
341my_svc_run(void)
342{
343 struct pollfd *pfd = NULL0, *newp;
28
←
'pfd' initialized to a null pointer value
→
344 int nready, saved_max_pollfd = 0;
345
346 for (;;) {
29
←
Loop condition is true. Entering loop body
→
347 if (wantsighup) {
30
←
Assuming 'wantsighup' is 0
→
31
←
Taking false branch
→
348 wantsighup = 0;
349 hup();
350 }
351 if (svc_max_pollfd > saved_max_pollfd) {
32
←
Assuming 'svc_max_pollfd' is <= 'saved_max_pollfd'
→
33
←
Taking false branch
→
352 newp = reallocarray(pfd, svc_max_pollfd, sizeof(*pfd));
353 if (newp == NULL0) {
354 free(pfd);
355 perror("svc_run: - realloc failed");
356 return;
357 }
358 pfd = newp;
359 saved_max_pollfd = svc_max_pollfd;
360 }
361 memcpy(pfd, svc_pollfd, sizeof(*pfd) * svc_max_pollfd);
34
←
Null pointer passed as 1st argument to memory copy function
362
363 nready = poll(pfd, svc_max_pollfd, INFTIM(-1));
364 switch (nready) {
365 case -1:
366 if (errno(*__errno()) == EINTR4)
367 continue;
368 perror("svc_run: - poll failed");
369 free(pfd);
370 return;
371 case 0:
372 continue;
373 default:
374 svc_getreq_poll(pfd, nready);
375 }
376 }
377}
378
379static void
380usage(void)
381{
382 (void)fprintf(stderr(&__sF[2]), "usage: ypserv [-1dx] [-a aclfile]\n");
383 exit(1);
384}
385
386int
387main(int argc, char *argv[])
388{
389 int xflag = 0, allowv1 = 0, ch, sock, proto;
390 struct sockaddr_in saddr;
391 socklen_t asize = sizeof(saddr);
392 extern char *optarg;
393 SVCXPRT *transp = NULL0;
394
395 while ((ch = getopt(argc, argv, "1a:dx")) != -1)
1
Assuming the condition is false
→
2
←
Loop condition is false. Execution continues on line 414
→
396 switch (ch) {
397 case '1':
398 allowv1 = TRUE(1);
399 break;
400 case 'a':
401 aclfile = optarg;
402 break;
403 case 'd':
404 usedns = TRUE(1);
405 break;
406 case 'x':
407 xflag = TRUE(1);
408 break;
409 default:
410 usage();
411 break;
412 }
413
414 if (geteuid() != 0) {
3
←
Assuming the condition is false
→
4
←
Taking false branch
→
415 (void)fprintf(stderr(&__sF[2]), "ypserv: must be root to run.\n");
416 exit(1);
417 }
418
419 if (aclfile
4.1
'aclfile' is equal to NULL
 != NULL0)
5
←
Taking false branch
→
420 (void)acl_init(aclfile);
421 else
422 (void)acl_securenet(YP_SECURENET_FILE"/var/yp/securenet");
423
424 if (xflag
5.1
'xflag' is 0
)
6
←
Taking false branch
→
425 exit(1);
426
427 if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {
7
←
Assuming the condition is true
→
8
←
Taking true branch
→
428 socklen_t ssize = sizeof(int);
429
430 if (saddr.sin_family != AF_INET2)
9
←
Assuming field 'sin_family' is equal to AF_INET
→
10
←
Taking false branch
→
431 exit(1);
432 if (getsockopt(0, SOL_SOCKET0xffff, SO_TYPE0x1008,
11
←
Assuming the condition is false
→
12
←
Taking false branch
→
433 &_rpcfdtype, &ssize) == -1)
434 exit(1);
435 sock = 0;
436 _rpcpmstart = 1;
437 proto = 0;
438 openlog("ypserv", LOG_PID0x01, LOG_DAEMON(3<<3));
439 } else {
440#ifndef RPC_SVC_FG
441 int i;
442 pid_t pid;
443
444 pid = fork();
445 if (pid < 0) {
446 perror("cannot fork");
447 exit(1);
448 }
449 if (pid)
450 exit(0);
451 closefrom(0);
452 i = open("/dev/console", O_RDWR0x0002);
453 (void) dup2(i, 1);
454 (void) dup2(i, 2);
455 i = open("/dev/tty", O_RDWR0x0002);
456 if (i >= 0) {
457 (void) ioctl(i, TIOCNOTTY((unsigned long)0x20000000 | ((0 & 0x1fff) << 16) |
((('t')) << 8) | ((113))), NULL0);
458 (void) close(i);
459 }
460 openlog("ypserv", LOG_PID0x01, LOG_DAEMON(3<<3));
461#endif
462 sock = RPC_ANYSOCK-1;
463 (void) pmap_unset(YPPROG((u_long)100004), YPVERS((u_long)2));
464 (void) pmap_unset(YPPROG((u_long)100004), YPOLDVERS((u_long)1));
465 }
466
467 ypopenlog(); /* open log file */
468 ypdb_init(); /* init db stuff */
469
470 chdir("/");
471
472 (void)signal(SIGCHLD20, sig_child);
473 (void)signal(SIGHUP1, sig_hup);
474
475 if (_rpcfdtype == 0 || _rpcfdtype == SOCK_DGRAM2) {
13
←
Assuming '_rpcfdtype' is not equal to 0
→
14
←
Assuming '_rpcfdtype' is equal to SOCK_DGRAM
→
15
←
Taking true branch
→
476 transp = svcudp_create(sock);
477 if (transp == NULL0) {
16
←
Assuming 'transp' is not equal to NULL
→
17
←
Taking false branch
→
478 _msgout("cannot create udp service.");
479 exit(1);
480 }
481 if (transp->xp_port >= IPPORT_RESERVED1024) {
18
←
Assuming field 'xp_port' is < IPPORT_RESERVED
→
19
←
Taking false branch
→
482 _msgout("cannot allocate udp privileged port.");
483 exit(1);
484 }
485 if (!_rpcpmstart)
20
←
Assuming '_rpcpmstart' is 0
→
21
←
Taking true branch
→
486 proto = IPPROTO_UDP17;
487 if (allowv1
21.1
'allowv1' is 0
) {
22
←
Taking false branch
→
488 if (!svc_register(transp, YPPROG((u_long)100004), YPOLDVERS((u_long)1), ypprog_1, proto)) {
489 _msgout("unable to register (YPPROG, YPOLDVERS, udp).");
490 exit(1);
491 }
492 }
493 if (!svc_register(transp, YPPROG((u_long)100004), YPVERS((u_long)2), ypprog_2, proto)) {
23
←
Assuming the condition is false
→
494 _msgout("unable to register (YPPROG, YPVERS, udp).");
495 exit(1);
496 }
497 }
498
499 if (_rpcfdtype
23.1
'_rpcfdtype' is not equal to 0
 == 0 || _rpcfdtype
23.2
'_rpcfdtype' is not equal to SOCK_STREAM
 == SOCK_STREAM1) {
24
←
Taking false branch
→
500 if (_rpcpmstart)
501 transp = svcfd_create(sock, 0, 0);
502 else
503 transp = svctcp_create(sock, 0, 0);
504 if (transp == NULL0) {
505 _msgout("cannot create tcp service.");
506 exit(1);
507 }
508 if (transp->xp_port >= IPPORT_RESERVED1024) {
509 _msgout("cannot allocate tcp privileged port.");
510 exit(1);
511 }
512 if (!_rpcpmstart)
513 proto = IPPROTO_TCP6;
514 if (allowv1) {
515 if (!svc_register(transp, YPPROG((u_long)100004), YPOLDVERS((u_long)1), ypprog_1, proto)) {
516 _msgout("unable to register (YPPROG, YPOLDVERS, tcp).");
517 exit(1);
518 }
519 }
520 if (!svc_register(transp, YPPROG((u_long)100004), YPVERS((u_long)2), ypprog_2, proto)) {
521 _msgout("unable to register (YPPROG, YPVERS, tcp).");
522 exit(1);
523 }
524 }
525
526 if (transp
24.1
'transp' is not equal to NULL
 == NULL0) {
25
←
Taking false branch
→
527 _msgout("could not create a handle");
528 exit(1);
529 }
530 if (_rpcpmstart
25.1
'_rpcpmstart' is 0
) {
26
←
Taking false branch
→
531 (void) signal(SIGALRM14, closedown);
532 (void) alarm(_RPCSVC_CLOSEDOWN120);
533 }
534 my_svc_run();
27
←
Calling 'my_svc_run'
→
535 _msgout("svc_run returned");
536 exit(1);
537 /* NOTREACHED */
538}
539
540void
541sig_child(int signo)
542{
543 int save_errno = errno(*__errno());
544
545 while (wait3(NULL0, WNOHANG0x01, NULL0) > 0)
546 ;
547 errno(*__errno()) = save_errno;
548}
549
550void
551sig_hup(int signo)
552{
553 wantsighup = 1;
554}