Re: sendmail snapshot 8.18.1.9

Thank you, Claus, for the Sunday update. A few warnings during build
time (some external to sendmail). Compiled against OpenSSL 3.4.0 on a
Slackware -current (current as of Feb 9, 2025). Apologies if the line
wrapping makes it harder to read.
$ more site.config.m4
APPENDDEF(`confMAPDEF', `-DNEWDB')
APPENDDEF(`confLIBS', `-lnsl -lssl -lcrypto -lsasl2 -lwrap -lm -ldb
-lresolv -licuuc -licui18n -licudata')
APPENDDEF(`conf_libmilter_ENVDEF', `-DMILTER')
APPENDDEF(`conf_sendmail_ENVDEF', `-DMILTER')
APPENDDEF(`confENVDEF', `-DNETINET6 -DIPV6_FULL -DNEWDB -DSTARTTLS
-DDANE -DSASL=2 -DTCPWRAPPERS -DNIS -DMAP_REGEX -DSOCKETMAP -DTLS_EC
-DUSE_EAI -DDNSSEC_TEST -D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_
ENGINE -DHAVE_ERR_get_error_all')dnl
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o main.o main.c
main.c: In function ‘stop_sendmail’:
main.c:3055:16: warning: ignoring return value of ‘setuid’ declared with
attribute ‘warn_unused_result’ [-Wunused-result]
 3055 |         (void) setuid(RealUid);
      |                ^~~~~~~~~~~~~~~
main.c: In function ‘finis’:
main.c:3199:24: warning: ignoring return value of ‘setuid’ declared with
attribute ‘warn_unused_result’ [-Wunused-result]
 3199 |                 (void) setuid(RealUid);
      |                        ^~~~~~~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o deliver.o deliver.c
deliver.c: In function ‘deliver’:
deliver.c:3172:40: warning: ignoring return value of ‘nice’ declared
with attribute ‘warn_unused_result’ [-Wunused-result]
 3172 |                                 (void) nice(m->m_nice);
      |                                        ^~~~~~~~~~~~~~~
deliver.c: In function ‘mailfile’:
deliver.c:6884:32: warning: ignoring return value of ‘ftruncate’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
 6884 |                         (void) ftruncate(sm_io_getinfo(f,
SM_IO_WHAT_FD, NULL),
      |                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 6885 |                                          curoff);
      |                                          ~~~~~~~
deliver.c:6899:24: warning: ignoring return value of ‘setuid’ declared
with attribute ‘warn_unused_result’ [-Wunused-result]
 6899 |                 (void) setuid(RealUid);
      |                        ^~~~~~~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o mci.o mci.c
mci.c: In function ‘mci_store_persistent’:
mci.c:1130:16: warning: ignoring return value of ‘ftruncate’ declared
with attribute ‘warn_unused_result’ [-Wunused-result]
 1130 |         (void) ftruncate(sm_io_getinfo(mci->mci_statfile,
SM_IO_WHAT_FD, NULL),
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1131 |                          (off_t) 0);
      |                          ~~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o queue.o queue.c
queue.c: In function ‘run_work_group’:
queue.c:2185:24: warning: ignoring return value of ‘nice’ declared with
attribute ‘warn_unused_result’ [-Wunused-result]
 2185 |                 (void) nice(Queue[qgrp]->qg_nice);
      |                        ^~~~~~~~~~~~~~~~~~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o readcf.o readcf.c
readcf.c:2821:24: warning: RES_AAONLY is deprecated
 2821 |         { "aaonly",     RES_AAONLY      },
      |                    ^~~~~~~~~~~~~~~~~~~~~~~
readcf.c:2823:20: warning: RES_PRIMARY is deprecated
 2823 |         { "primary",    RES_PRIMARY     },
      |                    ^~~~~~~~~~~~~~~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o stats.o stats.c
stats.c: In function ‘poststats’:
stats.c:192:16: warning: ignoring return value of ‘write’ declared with
attribute ‘warn_unused_result’ [-Wunused-result]
  192 |         (void) write(fd, (char *) &stats, sizeof(stats));
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o tls.o tls.c
tls.c: In function ‘get_dh512’:
tls.c:118:9: warning: ‘DH_new’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
  118 |         if ((dh = DH_new()) == NULL)
      |         ^~
In file included from /usr/include/openssl/dsa.h:31,
                 from /usr/include/openssl/x509.h:37,
                 from /usr/include/openssl/ssl.h:32,
                 from ./sendmail.h:43,
                 from tls.c:11:
/usr/include/openssl/dh.h:210:27: note: declared here
  210 | OSSL_DEPRECATEDIN_3_0 DH *DH_new(void);
      |                           ^~~~~~
tls.c:123:9: warning: ‘DH_set0_pqg’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
  123 |         if (dhp_bn == NULL || dhg_bn == NULL || !DH_set0_pqg(dh,
dhp_bn, NULL, dhg_bn))  {
      |         ^~
/usr/include/openssl/dh.h:266:27: note: declared here
  266 | OSSL_DEPRECATEDIN_3_0 int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM
*q, BIGNUM *g);
      |                           ^~~~~~~~~~~
tls.c:124:17: warning: ‘DH_free’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
  124 |                 DH_free(dh);
      |                 ^~~~~~~
/usr/include/openssl/dh.h:211:28: note: declared here
  211 | OSSL_DEPRECATEDIN_3_0 void DH_free(DH *dh);
      |                            ^~~~~~~
tls.c: In function ‘get_dh2048’:
tls.c:188:9: warning: ‘DH_new’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
  188 |         if ((dh=DH_new()) == NULL)
      |         ^~
/usr/include/openssl/dh.h:210:27: note: declared here
  210 | OSSL_DEPRECATEDIN_3_0 DH *DH_new(void);
      |                           ^~~~~~
tls.c:193:9: warning: ‘DH_set0_pqg’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
  193 |         if (dhp_bn == NULL || dhg_bn == NULL || !DH_set0_pqg(dh,
dhp_bn, NULL, dhg_bn))  {
      |         ^~
/usr/include/openssl/dh.h:266:27: note: declared here
  266 | OSSL_DEPRECATEDIN_3_0 int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM
*q, BIGNUM *g);
      |                           ^~~~~~~~~~~
tls.c:194:17: warning: ‘DH_free’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
  194 |                 DH_free(dh);
      |                 ^~~~~~~
/usr/include/openssl/dh.h:211:28: note: declared here
  211 | OSSL_DEPRECATEDIN_3_0 void DH_free(DH *dh);
      |                            ^~~~~~~
tls.c: In function ‘inittls’:
tls.c:1418:33: warning: ‘PEM_read_bio_DHparams’ is deprecated: Since
OpenSSL 3.0 [-Wdeprecated-declarations]
 1418 |                                 dh = PEM_read_bio_DHparams(bio,
NULL, NULL, NULL);
      |                                 ^~
In file included from /usr/include/openssl/ssl.h:37:
/usr/include/openssl/pem.h:474:1: note: declared here
  474 | DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DHparams, DH)
      | ^~~~~~~~~~~~~~~~~~~
tls.c:1459:25: warning: ‘DSA_new’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
 1459 |                         dsa = DSA_new();
      |                         ^~~
/usr/include/openssl/dsa.h:130:28: note: declared here
  130 | OSSL_DEPRECATEDIN_3_0 DSA *DSA_new(void);
      |                            ^~~~~~~
tls.c:1462:33: warning: ‘DSA_generate_parameters_ex’ is deprecated:
Since OpenSSL 3.0 [-Wdeprecated-declarations]
 1462 |                                 r =
DSA_generate_parameters_ex(dsa, bits, NULL,
      |                                 ^
/usr/include/openssl/dsa.h:172:27: note: declared here
  172 | OSSL_DEPRECATEDIN_3_0 int DSA_generate_parameters_ex(DSA *dsa,
int bits,
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~
tls.c:1465:41: warning: ‘DSA_dup_DH’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
 1465 |                                         dh = DSA_dup_DH(dsa);
      |                                         ^~
/usr/include/openssl/dsa.h:203:27: note: declared here
  203 | OSSL_DEPRECATEDIN_3_0 DH *DSA_dup_DH(const DSA *r);
      |                           ^~~~~~~~~~
tls.c:1473:25: warning: ‘DSA_free’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
 1473 |                         DSA_free(dsa);
      |                         ^~~~~~~~
/usr/include/openssl/dsa.h:132:28: note: declared here
  132 | OSSL_DEPRECATEDIN_3_0 void DSA_free(DSA *r);
      |                            ^~~~~~~~
tls.c:1511:43: warning: ‘DH_size’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
 1511 |                                           who, 8 * DH_size(dh),
*dhparam);
      |                                           ^~~
/usr/include/openssl/dh.h:214:27: note: declared here
  214 | OSSL_DEPRECATEDIN_3_0 int DH_size(const DH *dh);
      |                           ^~~~~~~
tls.c:1512:25: warning: ‘DH_free’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
 1512 |                         DH_free(dh);
      |                         ^~~~~~~
/usr/include/openssl/dh.h:211:28: note: declared here
  211 | OSSL_DEPRECATEDIN_3_0 void DH_free(DH *dh);
      |                            ^~~~~~~
tls.c:1519:17: warning: ‘EC_KEY_new_by_curve_name’ is deprecated: Since
OpenSSL 3.0 [-Wdeprecated-declarations]
 1519 |                 ecdh =
EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
      |                 ^~~~
In file included from /usr/include/openssl/x509.h:33:
/usr/include/openssl/ec.h:1017:31: note: declared here
 1017 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name(int nid);
      |                               ^~~~~~~~~~~~~~~~~~~~~~~~
tls.c:1524:25: warning: ‘EC_KEY_free’ is deprecated: Since OpenSSL 3.0
[-Wdeprecated-declarations]
 1524 |                         EC_KEY_free(ecdh);
      |                         ^~~~~~~~~~~
/usr/include/openssl/ec.h:1022:28: note: declared here
 1022 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_free(EC_KEY *key);
      |                            ^~~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../include  -DNEWDB -DNETINET6
-DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS
-DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST
-D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DMILTER     -c -o util.o util.c
util.c: In function ‘prog_open’:
util.c:2305:32: warning: ignoring return value of ‘chdir’ declared with
attribute ‘warn_unused_result’ [-Wunused-result]
 2305 |                         (void) chdir("/");
      |                                ^~~~~~~~~~
cc -O2 -fPIC -fhardened -DDANE -I. -I../../sendmail   -I../../include -DNEWDB -DNETINET6 -DIPV6_FULL -DNEWDB -DSTARTTLS -DDANE -DSASL=2
-DTCPWRAPPERS -DNIS -DMAP_REGEX -DSOCKETMAP -DTLS_EC -DUSE_EAI
-DDNSSEC_TEST -D_FFR_TLS_ALTNAMES -D_FFR_MTA_STS -DOPENSSL_NO_ENGINE
-DHAVE_ERR_get_error_all -DNOT_SENDMAIL      -c -o mail.local.o
mail.local.c
mail.local.c: In function ‘deliver’:
mail.local.c:1373:32: warning: ignoring return value of ‘ftruncate’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
 1373 |                         (void) ftruncate(mbfd, curoff);
      |                                ^~~~~~~~~~~~~~~~~~~~~~~
mail.local.c:1380:24: warning: ignoring return value of ‘setreuid’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
 1380 |                 (void) setreuid(0, 0);
      |                        ^~~~~~~~~~~~~~
mail.local.c: In function ‘lockmbox’:
mail.local.c:1540:32: warning: ignoring return value of ‘write’ declared
with attribute ‘warn_unused_result’ [-Wunused-result]
 1540 |                         (void) write(fd, "0", 2);
      |                                ^~~~~~~~~~~~~~~~~
cc -O2 -I. -I../../sendmail   -I../../include  -DNETINET6 -DIPV6_FULL
-DNEWDB -DSTARTTLS -DDANE -DSASL=2 -DTCPWRAPPERS -DNIS -DMAP_REGEX
-DSOCKETMAP -DTLS_EC -DUSE_EAI -DDNSSEC_TEST -D_FFR_TLS_ALTNAMES
-D_FFR_MTA_STS -DOPENSSL_NO_ENGINE -DHAVE_ERR_get_error_all
-DNOT_SENDMAIL -Dsm_snprintf=snprintf -DMILTER -D_REENTRANT -DXP_MT   -c
-o listener.o listener.c
listener.c: In function ‘mi_thread_handle_wrapper’:
listener.c:579:16: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
  579 |         return (void *) mi_handle_session(arg);
      |                ^