The branch main has been updated by des:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=aba9fffebf97d631f85e904813ff35ed031a3bac

commit aba9fffebf97d631f85e904813ff35ed031a3bac
Author:     Dag-Erling Smørgrav <[email protected]>
AuthorDate: 2026-07-06 12:23:24 +0000
Commit:     Dag-Erling Smørgrav <[email protected]>
CommitDate: 2026-07-06 12:23:24 +0000

    libc/resolv: Drop Solaris 2 compatibility
    
    MFC after:      1 week
    Reviewed by:    kevans, markj
    Differential Revision:  https://reviews.freebsd.org/D57922
---
 lib/libc/nameser/ns_parse.c |  5 -----
 lib/libc/resolv/res_comp.c  | 11 -----------
 lib/libc/resolv/res_init.c  | 42 ------------------------------------------
 3 files changed, 58 deletions(-)

diff --git a/lib/libc/nameser/ns_parse.c b/lib/libc/nameser/ns_parse.c
index 40f19d33c2bc..fa21127a5c7e 100644
--- a/lib/libc/nameser/ns_parse.c
+++ b/lib/libc/nameser/ns_parse.c
@@ -38,12 +38,7 @@ static void  setsection(ns_msg *msg, ns_sect sect);
 
 /* Macros. */
 
-#if !defined(SOLARIS2) || defined(__COVERITY__)
 #define RETERR(err) do { errno = (err); return (-1); } while (0)
-#else
-#define RETERR(err) \
-       do { errno = (err); if (errno == errno) return (-1); } while (0)
-#endif
 
 #define PARSE_FMT_PRESO 0      /* Parse using presentation-format names */
 #define PARSE_FMT_WIRE 1       /* Parse using network-format names */
diff --git a/lib/libc/resolv/res_comp.c b/lib/libc/resolv/res_comp.c
index 55b71266b4ae..d9edcc9a4930 100644
--- a/lib/libc/resolv/res_comp.c
+++ b/lib/libc/resolv/res_comp.c
@@ -240,17 +240,6 @@ res_dnok(const char *dn) {
  * Note that one _ comes from C and the others come from us.
  */
 
-#ifdef SOLARIS2
-#ifdef  __putlong
-#undef  __putlong
-#endif
-#ifdef  __putshort
-#undef  __putshort
-#endif
-#pragma weak    putlong         =       __putlong
-#pragma weak    putshort        =       __putshort
-#endif /* SOLARIS2 */
-
 void __putlong(u_int32_t src, u_char *dst) { ns_put32(src, dst); }
 void __putshort(u_int16_t src, u_char *dst) { ns_put16(src, dst); }
 #ifndef __ultrix__
diff --git a/lib/libc/resolv/res_init.c b/lib/libc/resolv/res_init.c
index b21a3fa1670f..e9e982fe27bb 100644
--- a/lib/libc/resolv/res_init.c
+++ b/lib/libc/resolv/res_init.c
@@ -95,10 +95,6 @@
 
 #include "res_private.h"
 
-#ifdef SOLARIS2
-#include <sys/systeminfo.h>
-#endif
-
 static void res_setoptions(res_state, const char *, const char *);
 
 #ifdef RESOLVSORT
@@ -219,28 +215,6 @@ __res_vinit(res_state statp, int preinit) {
 #endif
        res_setservers(statp, u, nitems(u));
 
-#ifdef SOLARIS2
-       /*
-        * The old libresolv derived the defaultdomain from NIS/NIS+.
-        * We want to keep this behaviour
-        */
-       {
-               char buf[sizeof(statp->defdname)], *cp;
-               int ret;
-
-               if ((ret = sysinfo(SI_SRPC_DOMAIN, buf, sizeof(buf))) > 0 &&
-                       (unsigned int)ret <= sizeof(buf)) {
-                       if (buf[0] == '+')
-                               buf[0] = '.';
-                       cp = strchr(buf, '.');
-                       cp = (cp == NULL) ? buf : (cp + 1);
-                       strncpy(statp->defdname, cp,
-                               sizeof(statp->defdname) - 1);
-                       statp->defdname[sizeof(statp->defdname) - 1] = '\0';
-               }
-       }
-#endif /* SOLARIS2 */
-
        /* Allow user to override the local domain definition */
        if ((cp = secure_getenv("LOCALDOMAIN")) != NULL) {
                (void)strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
@@ -580,22 +554,6 @@ res_setoptions(res_state statp, const char *options, const 
char *source)
                        if (statp->options & RES_DEBUG)
                                printf(";;\ttimeout=%d\n", statp->retrans);
 #endif
-#ifdef SOLARIS2
-               } else if (!strncmp(cp, "retrans:", sizeof("retrans:") - 1)) {
-                       /*
-                        * For backward compatibility, 'retrans' is
-                        * supported as an alias for 'timeout', though
-                        * without an imposed maximum.
-                        */
-                       statp->retrans = atoi(cp + sizeof("retrans:") - 1);
-               } else if (!strncmp(cp, "retry:", sizeof("retry:") - 1)){
-                       /*
-                        * For backward compatibility, 'retry' is
-                        * supported as an alias for 'attempts', though
-                        * without an imposed maximum.
-                        */
-                       statp->retry = atoi(cp + sizeof("retry:") - 1);
-#endif /* SOLARIS2 */
                } else if (!strncmp(cp, "attempts:", sizeof("attempts:") - 1)){
                        i = atoi(cp + sizeof("attempts:") - 1);
                        if (i <= RES_MAXRETRY)

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