Source: dnstop
Version: 20120611-2
Severity: serious
Justification: FTBFS
Tags: trixie sid ftbfs
User: lu...@debian.org
Usertags: ftbfs-20240313 ftbfs-trixie ftbfs-impfuncdef

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.

This is most likely caused by a change in dpkg 1.22.6, that enabled
-Werror=implicit-function-declaration. For more information, see
https://wiki.debian.org/qa.debian.org/FTBFS#A2024-03-13_-Werror.3Dimplicit-function-declaration

Relevant part (hopefully):
> gcc -g -O2 -Werror=implicit-function-declaration 
> -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong 
> -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection 
> -DUSE_IPV6=1 -Wdate-time -D_FORTIFY_SOURCE=2  -c -o dnstop.o dnstop.c
> dnstop.c: In function ‘main’:
> dnstop.c:1891:10: error: implicit declaration of function ‘strcasestr’; did 
> you mean ‘strcasecmp’? [-Werror=implicit-function-declaration]
>  1891 |     if (!strcasestr(bpf_program_str, "port "))
>       |          ^~~~~~~~~~
>       |          strcasecmp
> dnstop.c: In function ‘allocate_anonymous_address’:
> dnstop.c:350:13: warning: ignoring return value of ‘read’ declared with 
> attribute ‘warn_unused_result’ [-Wunused-result]
>   350 |             read(entropy_fd, buf, 4);
>       |             ^~~~~~~~~~~~~~~~~~~~~~~~
> dnstop.c:355:13: warning: ignoring return value of ‘read’ declared with 
> attribute ‘warn_unused_result’ [-Wunused-result]
>   355 |             read(entropy_fd, buf, 16);
>       |             ^~~~~~~~~~~~~~~~~~~~~~~~~
> dnstop.c: In function ‘Table_report’:
> dnstop.c:1306:65: warning: ‘s
>    ’ directive output may be truncated writing 2 bytes into a region of size 
> between 0 and 40 [-Wformat-truncation=]
>  1306 |         snprintf(fmt1, 64, "%%-%d.%ds %%-%d.%ds %%%ds %%%ds %%%ds\n", 
> W1, W1, W2, W2, WC, WP, WP);
>       |                                                                 ^~~
> In file included from /usr/include/stdio.h:906,
>                  from /usr/include/pcap/pcap.h:136,
>                  from /usr/include/pcap.h:43,
>                  from dnstop.c:21:
> In function ‘snprintf’,
>     inlined from ‘Table_report’ at dnstop.c:1306:2:
> /usr/include/x86_64-linux-gnu/bits/stdio2.h:54:10: note: 
> ‘__builtin___snprintf_chk’ output between 27 and 67 bytes into a destination 
> of size 64
>    54 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
>       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    55 |                                    __glibc_objsize (__s), __fmt,
>       |                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    56 |                                    __va_arg_pack ());
>       |                                    ~~~~~~~~~~~~~~~~~
> dnstop.c: In function ‘Table_report’:
> dnstop.c:1307:63: warning: ‘%%’ directive output may be truncated writing 1 
> byte into a region of size between 0 and 40 [-Wformat-truncation=]
>  1307 |         snprintf(fmt2, 64, "%%-%d.%ds %%-%d.%ds %%%dd %%%d.1f 
> %%%d.1f\n", W1, W1, W2, W2, WC, WP, WP);
>       |                                                               ^~
> In function ‘snprintf’,
>     inlined from ‘Table_report’ at dnstop.c:1307:2:
> /usr/include/x86_64-linux-gnu/bits/stdio2.h:54:10: note: 
> ‘__builtin___snprintf_chk’ output between 31 and 71 bytes into a destination 
> of size 64
>    54 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
>       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    55 |                                    __glibc_objsize (__s), __fmt,
>       |                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    56 |                                    __va_arg_pack ());
>       |                                    ~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
> make[1]: *** [<builtin>: dnstop.o] Error 1


The full build log is available from:
http://qa-logs.debian.net/2024/03/13/dnstop_20120611-2_unstable.log

All bugs filed during this archive rebuild are listed at:
https://bugs.debian.org/cgi-bin/pkgreport.cgi?tag=ftbfs-20240313;users=lu...@debian.org
or:
https://udd.debian.org/bugs/?release=na&merged=ign&fnewerval=7&flastmodval=7&fusertag=only&fusertagtag=ftbfs-20240313&fusertaguser=lu...@debian.org&allbugs=1&cseverity=1&ctags=1&caffected=1#results

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

If you reassign this bug to another package, please mark it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects

If you fail to reproduce this, please provide a build log and diff it with mine
so that we can identify if something relevant changed in the meantime.

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