[asterisk-bugs] [JIRA] (ASTERISK-28362) sip_chan.c makes gcc compile warning

[sungtae kim (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-28362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sungtae kim updated ASTERISK-28362:
-----------------------------------

    Description: 
chan_sip.c makes gcc compile warning.
{noformat}
$ make
CC="cc" CXX="g++" LD="" AR="" RANLIB="" CFLAGS="" LDFLAGS="" make -C menuselect CONFIGURE_SILENT="--silent" makeopts
make[1]: Entering directory '/home/pchero/git/asterisk/menuselect'
make[1]: 'makeopts' is up to date.
make[1]: Leaving directory '/home/pchero/git/asterisk/menuselect'
Generating input for menuselect ...
menuselect/menuselect --check-deps menuselect.makeopts
menuselect/menuselect --check-deps menuselect.makeopts  
   [CC] chan_sip.c -> chan_sip.o
chan_sip.c: In function ‘process_sdp_a_text’:
chan_sip.c:11648:4: error: ‘red_cp’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
    sscanf(red_cp, "%30u", (unsigned *)&red_data_pt[*red_num_gen]);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chan_sip.c: At top level:
cc1: error: unrecognized command line option ‘-Wno-format-truncation’ [-Werror]
cc1: all warnings being treated as errors
/home/pchero/git/asterisk/Makefile.rules:158: recipe for target 'chan_sip.o' failed
make[1]: *** [chan_sip.o] Error 1
Makefile:383: recipe for target 'channels' failed
make: *** [channels] Error 2


$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 6.3.0-18+deb9u1' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) 


$ uname -a
Linux debian 4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64 GNU/Linux
{noformat}

  was:
chan_sip.c makes gcc compile warning.
<pre>
$ make
CC="cc" CXX="g++" LD="" AR="" RANLIB="" CFLAGS="" LDFLAGS="" make -C menuselect CONFIGURE_SILENT="--silent" makeopts
make[1]: Entering directory '/home/pchero/git/asterisk/menuselect'
make[1]: 'makeopts' is up to date.
make[1]: Leaving directory '/home/pchero/git/asterisk/menuselect'
Generating input for menuselect ...
menuselect/menuselect --check-deps menuselect.makeopts
menuselect/menuselect --check-deps menuselect.makeopts  
   [CC] chan_sip.c -> chan_sip.o
chan_sip.c: In function ‘process_sdp_a_text’:
chan_sip.c:11648:4: error: ‘red_cp’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
    sscanf(red_cp, "%30u", (unsigned *)&red_data_pt[*red_num_gen]);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chan_sip.c: At top level:
cc1: error: unrecognized command line option ‘-Wno-format-truncation’ [-Werror]
cc1: all warnings being treated as errors
/home/pchero/git/asterisk/Makefile.rules:158: recipe for target 'chan_sip.o' failed
make[1]: *** [chan_sip.o] Error 1
Makefile:383: recipe for target 'channels' failed
make: *** [channels] Error 2
</pre>

<pre>
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 6.3.0-18+deb9u1' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) 
</pre>


> sip_chan.c makes gcc compile warning
> ------------------------------------
>
>                 Key: ASTERISK-28362
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28362
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 16.2.1
>            Reporter: sungtae kim
>            Severity: Minor
>
> chan_sip.c makes gcc compile warning.
> {noformat}
> $ make
> CC="cc" CXX="g++" LD="" AR="" RANLIB="" CFLAGS="" LDFLAGS="" make -C menuselect CONFIGURE_SILENT="--silent" makeopts
> make[1]: Entering directory '/home/pchero/git/asterisk/menuselect'
> make[1]: 'makeopts' is up to date.
> make[1]: Leaving directory '/home/pchero/git/asterisk/menuselect'
> Generating input for menuselect ...
> menuselect/menuselect --check-deps menuselect.makeopts
> menuselect/menuselect --check-deps menuselect.makeopts  
>    [CC] chan_sip.c -> chan_sip.o
> chan_sip.c: In function ‘process_sdp_a_text’:
> chan_sip.c:11648:4: error: ‘red_cp’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
>     sscanf(red_cp, "%30u", (unsigned *)&red_data_pt[*red_num_gen]);
>     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> chan_sip.c: At top level:
> cc1: error: unrecognized command line option ‘-Wno-format-truncation’ [-Werror]
> cc1: all warnings being treated as errors
> /home/pchero/git/asterisk/Makefile.rules:158: recipe for target 'chan_sip.o' failed
> make[1]: *** [chan_sip.o] Error 1
> Makefile:383: recipe for target 'channels' failed
> make: *** [channels] Error 2
> $ gcc -v
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/6/lto-wrapper
> Target: x86_64-linux-gnu
> Configured with: ../src/configure -v --with-pkgversion='Debian 6.3.0-18+deb9u1' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
> Thread model: posix
> gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) 
> $ uname -a
> Linux debian 4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64 GNU/Linux
> {noformat}



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