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Ticket Resolution Summary Owner Reporter
#280 fixed trying to work with libtrace but it is giving an error anonymous sgup028@…
Description

I have installed ruby-1.8.6, libtrace-3.0.6 and ruby-libtrace on ubuntu as well as Redhat Enterprise Linux version 5. But when i try to write a program in ruby to trace a anonymous.bpf file then it gives me an error "not a pcap tracefile (libtrace error). Could you tell what is the problem. I tries libtrace-3.0.7 also, it gives me an error segementation fault aborted.

#279 fixed tracetop segfaults when it can't open an interface perry Matt Brown
Description

if you run tracetop as a normal user who can't open an interface it segfaults:

matt@neon:~/debs/libtrace3/build-area$ tracetop int:eth0 Starting trace(eth0): Could not create raw socket: Operation not permitted * glibc detected * tracetop: double free or corruption (fasttop): 0x092dfa68 * ======= Backtrace: ========= /lib/i686/cmov/libc.so.6(+0x6b321)[0xb75a5321] /lib/i686/cmov/libc.so.6(+0x6cb78)[0xb75a6b78] /lib/i686/cmov/libc.so.6(cfree+0x6d)[0xb75a9c5d] /usr/lib/libtrace.so.3(+0xca0b)[0xb7833a0b] /usr/lib/libtrace.so.3(trace_destroy+0x33)[0xb782c803] tracetop[0x804afae] /lib/i686/cmov/libc.so.6(libc_start_main+0xe6)[0xb7550c76] tracetop[0x8049251] ======= Memory map: ======== 08048000-0804c000 r-xp 00000000 fe:01 99778 /usr/bin/tracetop 0804c000-0804d000 rw-p 00004000 fe:01 99778 /usr/bin/tracetop 092d0000-092f1000 rw-p 00000000 00:00 0 [heap] b7300000-b7321000 rw-p 00000000 00:00 0 b7321000-b7400000 ---p 00000000 00:00 0 b74f9000-b7503000 r-xp 00000000 fe:01 765092 /lib/i686/cmov/libnss_files-2.11.2.so b7503000-b7504000 r--p 00009000 fe:01 765092 /lib/i686/cmov/libnss_files-2.11.2.so b7504000-b7505000 rw-p 0000a000 fe:01 765092 /lib/i686/cmov/libnss_files-2.11.2.so b7505000-b7507000 rw-p 00000000 00:00 0 b7507000-b7538000 r-xp 00000000 fe:01 97748 /usr/lib/libpcap.so.1.1.1 b7538000-b7539000 rw-p 00030000 fe:01 97748 /usr/lib/libpcap.so.1.1.1 b7539000-b753a000 rw-p 00000000 00:00 0 b753a000-b767a000 r-xp 00000000 fe:01 766996 /lib/i686/cmov/libc-2.11.2.so b767a000-b767b000 ---p 00140000 fe:01 766996 /lib/i686/cmov/libc-2.11.2.so b767b000-b767d000 r--p 00140000 fe:01 766996 /lib/i686/cmov/libc-2.11.2.so b767d000-b767e000 rw-p 00142000 fe:01 766996 /lib/i686/cmov/libc-2.11.2.so b767e000-b7682000 rw-p 00000000 00:00 0 b7682000-b769f000 r-xp 00000000 fe:01 762571 /lib/libgcc_s.so.1 b769f000-b76a0000 rw-p 0001c000 fe:01 762571 /lib/libgcc_s.so.1 b76a0000-b76c4000 r-xp 00000000 fe:01 762564 /lib/i686/cmov/libm-2.11.2.so b76c4000-b76c5000 r--p 00023000 fe:01 762564 /lib/i686/cmov/libm-2.11.2.so b76c5000-b76c6000 rw-p 00024000 fe:01 762564 /lib/i686/cmov/libm-2.11.2.so b76c6000-b77af000 r-xp 00000000 fe:01 97786 /usr/lib/libstdc++.so.6.0.13 b77af000-b77b3000 r--p 000e9000 fe:01 97786 /usr/lib/libstdc++.so.6.0.13 b77b3000-b77b4000 rw-p 000ed000 fe:01 97786 /usr/lib/libstdc++.so.6.0.13 b77b4000-b77bb000 rw-p 00000000 00:00 0 b77bb000-b77bd000 r-xp 00000000 fe:01 762769 /lib/i686/cmov/libdl-2.11.2.so b77bd000-b77be000 r--p 00001000 fe:01 762769 /lib/i686/cmov/libdl-2.11.2.so b77be000-b77bf000 rw-p 00002000 fe:01 762769 /lib/i686/cmov/libdl-2.11.2.so b77bf000-b77d2000 r-xp 00000000 fe:01 97681 /usr/lib/libz.so.1.2.3.4 b77d2000-b77d3000 rw-p 00013000 fe:01 97681 /usr/lib/libz.so.1.2.3.4 b77d3000-b77e8000 r-xp 00000000 fe:01 762595 /lib/i686/cmov/libpthread-2.11.2.so b77e8000-b77e9000 r--p 00014000 fe:01 762595 /lib/i686/cmov/libpthread-2.11.2.so b77e9000-b77ea000 rw-p 00015000 fe:01 762595 /lib/i686/cmov/libpthread-2.11.2.so b77ea000-b77ed000 rw-p 00000000 00:00 0 b77ed000-b7824000 r-xp 00000000 fe:01 762649 /lib/libncurses.so.5.7 b7824000-b7827000 rw-p 00036000 fe:01 762649 /lib/libncurses.so.5.7 b7827000-b783c000 r-xp 00000000 fe:01 97425 /usr/lib/libtrace.so.3.0.7 b783c000-b783d000 rw-p 00015000 fe:01 97425 /usr/lib/libtrace.so.3.0.7 b7845000-b7848000 rw-p 00000000 00:00 0 b7848000-b7849000 r-xp 00000000 00:00 0 [vdso] b7849000-b7864000 r-xp 00000000 fe:01 766987 /lib/ld-2.11.2.so b7864000-b7865000 r--p 0001a000 fe:01 766987 /lib/ld-2.11.2.so b7865000-b7866000 rw-p 0001b000 fe:01 766987 /lib/ld-2.11.2.so bfba1000-bfbb6000 rw-p 00000000 00:00 0 [stack] Aborted

#276 fixed rijndael.c makes gcc 4.4 very sad salcock salcock
Description

We do a crapload of nasty-looking casting in rijndael.c between uint8_t * and uint32_t *.

This tends to make new gcc's strict-aliasing warning go nuts, but actually fixing this is going to be more than a little tricky. Not just in terms of replacing the casts, but doing so in a way that won't actually break the code.

For example, it's not enough to do most of the casts once at the start of the function, because the pointer that they were cast from often gets incremented during the function. As a result, you need to redo the cast.

For now, I've disabled that warning for the traceanon tool. This is far from ideal, but hopefully this is just a case of gcc being whiny. At some point, though, the casting should be fixed and the warning re-instated.

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