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Hi Jan,
Yes, that is the case. That is for portability.
If it somehow a problem on systems, it would receive #ifdefs around
it, but it does not seem to give warnings.
Best regards, Wouter
On 20/10/16 22:11, Jan Stary wrote:> The following source files in the 4.1.3 tarball declare extern int
> optind and extern char* optarg, but those are already declared in
> the headers. (Or is there a system where this is not the case?)
>
> Jan
>
> diff -Nup -Nupr /tmp/nsd-4.1.13/nsd-checkconf.c
> /home/hans/src/nsd-4.1.13/nsd-checkconf.c ---
> /tmp/nsd-4.1.13/nsd-checkconf.c Fri Aug 5 16:04:30 2016 +++
> /home/hans/src/nsd-4.1.13/nsd-checkconf.c Thu Oct 20 21:59:47 2016
> @@ -18,9 +18,6 @@ #include "dname.h" #include "rrl.h"
>
> -extern char *optarg; -extern int optind; - #define
> ZONE_GET_ACL(NAME, VAR, PATTERN) \ if (strcasecmp(#NAME, (VAR))
> == 0) { \ quote_acl(PATTERN->NAME); \ diff -Nup -Nupr
> /tmp/nsd-4.1.13/nsd-checkzone.c
> /home/hans/src/nsd-4.1.13/nsd-checkzone.c ---
> /tmp/nsd-4.1.13/nsd-checkzone.c Wed May 28 08:51:23 2014 +++
> /home/hans/src/nsd-4.1.13/nsd-checkzone.c Thu Oct 20 22:00:24 2016
> @@ -98,9 +98,6 @@ void sig_handler(int ATTR_UNUSED(sig)) { }
>
> -extern char *optarg; -extern int optind; - int main(int argc, char
> *argv[]) { diff -Nup -Nupr /tmp/nsd-4.1.13/nsd-control.c
> /home/hans/src/nsd-4.1.13/nsd-control.c ---
> /tmp/nsd-4.1.13/nsd-control.c Thu Sep 15 14:03:54 2016 +++
> /home/hans/src/nsd-4.1.13/nsd-control.c Thu Oct 20 21:55:46 2016 @@
> -350,11 +350,6 @@ go(const char* cfgfile, char* svr, int argc,
> char* arg return ret; }
>
> -/** getopt global, in case header files fail to declare it. */
> -extern int optind; -/** getopt global, in case header files fail
> to declare it. */ -extern char* optarg; - /** Main routine for
> nsd-control */ int main(int argc, char* argv[]) { diff -Nup -Nupr
> /tmp/nsd-4.1.13/nsd-mem.c /home/hans/src/nsd-4.1.13/nsd-mem.c ---
> /tmp/nsd-4.1.13/nsd-mem.c Tue Aug 16 10:23:14 2016 +++
> /home/hans/src/nsd-4.1.13/nsd-mem.c Thu Oct 20 22:02:52 2016 @@
> -282,9 +282,6 @@ void sig_handler(int ATTR_UNUSED(sig)) { }
>
> -extern char *optarg; -extern int optind; - int main(int argc, char
> *argv[]) { diff -Nup -Nupr /tmp/nsd-4.1.13/nsd.c
> /home/hans/src/nsd-4.1.13/nsd.c --- /tmp/nsd-4.1.13/nsd.c Tue May
> 31 15:53:47 2016 +++ /home/hans/src/nsd-4.1.13/nsd.c Thu Oct 20
> 21:54:05 2016 @@ -411,9 +411,6 @@ bind8_stats (struct nsd *nsd) }
> #endif /* BIND8_STATS */
>
> -extern char *optarg; -extern int optind; - int main(int argc, char
> *argv[]) { _______________________________________________
> nsd-users mailing list nsd-users at NLnetLabs.nl
> https://open.nlnetlabs.nl/mailman/listinfo/nsd-users
>
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