Rarun2's program redirection doesn't work. #3951

akrasuski1 · 2016-01-13T17:51:48Z

dbg.profile's stdin field seem to work only with files, not with programs. Consider:

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=!python -c 'print "2"'
$ r2 -d /bin/ls -e dbg.profile=/tmp/prof
Attached debugger to pid = 16782, tid = 16782
Debugging pid = 16782, tid = 16782 now
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
r_debug_reg: error reading registers
Attached debugger to pid = 16782, tid = 16782
r_debug_reg: error reading registers
r_debug_reg: error reading registers
 -- Experts agree, security holes suck, and we fixed some of them!
r_debug_reg: error reading registers
[0x00000000]>

There are a couple of errors. On the other hand, if I change /tmp/prof file to use file as input, it works fine:

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=/tmp/prof
$ r2 -d /bin/ls -e dbg.profile=/tmp/prof
Process with PID 16799 started...
Attached debugger to pid = 16799, tid = 16799
Debugging pid = 16799, tid = 16799 now
Using BADDR 0x400000
Assuming filepath /bin/ls
bits 64
Attached debugger to pid = 16799, tid = 16799
 -- In Soviet Russia, radare2 have documentation.
[0x7efdaf952cd0]>

Note that doing this with just rarun2 works fine in both cases - rarun2 /tmp/prof lists files.

The text was updated successfully, but these errors were encountered:

radare · 2016-01-13T18:20:48Z

program and its arguments must be the last ones in the commandline, try
with:

$ r2 -e dbg.profile=/tmp/prof -d /bin/ls

also, there are several shorter ways to make that stdin thing for example:

stdin=2

a bit longer:

stdin=!echo 2

i was a bit scared with that python for just an echo :P

On 01/13/2016 06:51 PM, akrasuski1 wrote:

dbg.profile's stdin field seem to work only with files, not with programs. Consider:

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=!python -c 'print "2"'
$ r2 -d /bin/ls -e dbg.profile=/tmp/prof
Attached debugger to pid = 16782, tid = 16782
Debugging pid = 16782, tid = 16782 now
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
r_debug_reg: error reading registers
Attached debugger to pid = 16782, tid = 16782
r_debug_reg: error reading registers
r_debug_reg: error reading registers
 -- Experts agree, security holes suck, and we fixed some of them!
r_debug_reg: error reading registers
[0x00000000]>

There are a couple of errors. On the other hand, if I change /tmp/prof file to use file as input, it works fine:

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=/tmp/prof
$ r2 -d /bin/ls -e dbg.profile=/tmp/prof
Process with PID 16799 started...
Attached debugger to pid = 16799, tid = 16799
Debugging pid = 16799, tid = 16799 now
Using BADDR 0x400000
Assuming filepath /bin/ls
bits 64
Attached debugger to pid = 16799, tid = 16799
 -- In Soviet Russia, radare2 have documentation.
[0x7efdaf952cd0]>

Reply to this email directly or view it on GitHub:
#3951

akrasuski1 · 2016-01-13T18:24:11Z

$ r2 -e dbg.profile=/tmp/prof -d /bin/ls
Attached debugger to pid = 17185, tid = 17185
Debugging pid = 17185, tid = 17185 now
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
r_debug_reg: error reading registers
Attached debugger to pid = 17185, tid = 17185
r_debug_reg: error reading registers
r_debug_reg: error reading registers
 -- Disassemble in intel syntax with 'e asm.syntax = intel'.
r_debug_reg: error reading registers
[0x00000000]>

Doesn't seem to work either. Also, the short python program was just an example, normally it would be much longer of course ;)

radare · 2016-01-13T18:25:46Z

which version of r2 are you using? last one from git?

do r2 -d ls works for you? because it looks like there's not even
/proc in your system? wtf

On 01/13/2016 07:24 PM, akrasuski1 wrote:

$ r2 -e dbg.profile=/tmp/prof -d /bin/ls
Attached debugger to pid = 17185, tid = 17185
Debugging pid = 17185, tid = 17185 now
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 debug_init_maps: /proc: No such file or directory
r_debug_reg: error reading registers
Attached debugger to pid = 17185, tid = 17185
r_debug_reg: error reading registers
r_debug_reg: error reading registers
 -- Disassemble in intel syntax with 'e asm.syntax = intel'.
r_debug_reg: error reading registers
[0x00000000]>

Doesn't seem to work either. Also, the short python program was just an example, normally it would be much longer of course ;)

Reply to this email directly or view it on GitHub:
#3951 (comment)

akrasuski1 · 2016-01-13T18:27:09Z

$ r2 -d ls
Process with PID 17224 started...
Attached debugger to pid = 17224, tid = 17224
Debugging pid = 17224, tid = 17224 now
Using BADDR 0x400000
Assuming filepath /bin/ls
bits 64
Attached debugger to pid = 17224, tid = 17224
 -- Switch between print modes using the 'p' and 'P' keys in visual mode
[0x7fbe7c576cd0]>

I updated r2 just yesterday, I don't believe anythin important changed since then.

akrasuski1 · 2016-01-13T18:29:51Z

https://github.com/radare/radare2/blob/40e08dbd89618643309fd2560e9fc19f88668b7c/libr/debug/p/debug_native.c#L764

This is the place which prints the first error - it lies a bit - it's not the /proc that doesn't exist, but the /proc/PID_OF_PROG/maps - which makes me believe that pid is wrong.

radare · 2016-01-13T21:22:29Z

Confirmed, this is a regression on linux. im looking at it

akrasuski1 · 2016-01-13T21:48:44Z

Fix didn't work, same problem persists.

akrasuski1 · 2016-01-14T19:25:25Z

Could you reopen the issue?

radare · 2016-01-15T03:10:47Z

Can anyone reproduce?

Maijin · 2016-01-24T09:04:03Z

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=!echo 2
$ r2 -e dbg.profile=/tmp/prof -d /bin/ls
Attached debugger to pid = 27894, tid = 27894
Debugging pid = 27894, tid = 27894 now
p/debug_native.c:764 Cannot open '/proc/27894/maps': No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 Cannot open '/proc/27894/maps': No such file or directory
r_debug_reg: error reading registers
r_debug_reg: error reading registers
r_debug_reg: error reading registers
 -- You can debug a program from the graph view ('ag') using standard radare2 commands
r_debug_reg: error reading registers
^D
Do you want to quit? (Y/n)
Do you want to kill the process? (Y/n)

radare · 2016-01-24T11:10:16Z

Echo is not a program

On 24 Jan 2016, at 10:04, Maijin notifications@github.com wrote:

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=!echo 2
$ r2 -e dbg.profile=/tmp/prof -d /bin/ls
Attached debugger to pid = 27894, tid = 27894
Debugging pid = 27894, tid = 27894 now
p/debug_native.c:764 Cannot open '/proc/27894/maps': No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 Cannot open '/proc/27894/maps': No such file or directory
r_debug_reg: error reading registers
r_debug_reg: error reading registers
r_debug_reg: error reading registers
-- You can debug a program from the graph view ('ag') using standard radare2 commands
r_debug_reg: error reading registers
^D
Do you want to quit? (Y/n)
Do you want to kill the process? (Y/n)
—
Reply to this email directly or view it on GitHub.

radare · 2016-01-24T11:10:32Z

Welcome to unix

On 24 Jan 2016, at 10:04, Maijin notifications@github.com wrote:

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=!echo 2
$ r2 -e dbg.profile=/tmp/prof -d /bin/ls
Attached debugger to pid = 27894, tid = 27894
Debugging pid = 27894, tid = 27894 now
p/debug_native.c:764 Cannot open '/proc/27894/maps': No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 Cannot open '/proc/27894/maps': No such file or directory
r_debug_reg: error reading registers
r_debug_reg: error reading registers
r_debug_reg: error reading registers
-- You can debug a program from the graph view ('ag') using standard radare2 commands
r_debug_reg: error reading registers
^D
Do you want to quit? (Y/n)
Do you want to kill the process? (Y/n)
—
Reply to this email directly or view it on GitHub.

Maijin · 2016-01-24T11:27:09Z

#3951 (comment)

I just followed your instructions....

Same with "2"

$ cat /tmp/prof 
#!/usr/bin/rarun2
program=/bin/ls
stdin=2
$ r2 -e dbg.profile=/tmp/prof -d /bin/ls
[ERROR] rarun2: Cannot open: 2
Can't config the environment.
Attached debugger to pid = 32718, tid = 32718
Debugging pid = 32718, tid = 32718 now
p/debug_native.c:764 Cannot open '/proc/32718/maps': No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 Cannot open '/proc/32718/maps': No such file or directory
r_debug_reg: error reading registers
r_debug_reg: error reading registers
r_debug_reg: error reading registers
 -- Now with more better English!
r_debug_reg: error reading registers
^D
Do you want to quit? (Y/n)
Do you want to kill the process? (Y/n)

Same with the first example

$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=!python -c 'print "2"'
$ r2 -e dbg.profile=/tmp/prof -d /bin/ls
Attached debugger to pid = 394, tid = 394
Debugging pid = 394, tid = 394 now
p/debug_native.c:764 Cannot open '/proc/394/maps': No such file or directory
Using BADDR 0x0
Assuming filepath /bin/ls
bits 64
p/debug_native.c:764 Cannot open '/proc/394/maps': No such file or directory
r_debug_reg: error reading registers
r_debug_reg: error reading registers
r_debug_reg: error reading registers
 -- No such file or directory.
r_debug_reg: error reading registers
^D
Do you want to quit? (Y/n)
Do you want to kill the process? (Y/n)

Thaelz · 2016-10-24T12:14:25Z

Happy Haloween, the dead thread is coming back! (Sorry for that..)
From what i've experienced, the /proc/pid/maps file error is a consequence of the failed stdin input command.
A workaround to get the result of a command as stdin:
$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=$(python -c 'print "2"')
Or with a python script:
stdin=$(python sample.py)
Then the errors related to the /proc/pid/maps should disappear (and the analysis of sections, entrypoint, etc.. will get expected results) as the stdin argument is correctly interpreted (see edit).

EDIT: Seems it doesn't make things work but just bypass these errors, the stdin is still interactive (and not reading the command output) while debugging..

radare · 2016-10-25T18:53:32Z

$( is nothing, RTFM

On 24 Oct 2016, at 14:14, Thaelz notifications@github.com wrote:

Happy Haloween, the dead thread is coming back! (Sorry for that..)
From what i've experienced, the /proc/pid/maps file error is a consequence of the failed stdin input command.
A workaround to get the result of a command as stdin:
$ cat /tmp/prof
#!/usr/bin/rarun2
program=/bin/ls
stdin=$(python -c 'print "2"')
Or with a python script:
stdin=$(python sample.py)
Then the errors related to the /proc/pid/maps should disappear (and the analysis of sections, entrypoint, etc.. will get expected results) as the stdin argument is correctly interpreted.

—
You are receiving this because you modified the open/close state.
Reply to this email directly, view it on GitHub #3951 (comment), or mute the thread https://github.com/notifications/unsubscribe-auth/AA3-lob6zu34ZhHU0VBWLPRk0gOtbu_bks5q3KEjgaJpZM4HENwR.

Maijin · 2016-10-25T18:59:22Z

Following your instruction it doesn't work either.

Maijin · 2016-10-25T18:59:37Z

instructionS

Diadlo · 2017-01-20T21:50:19Z

I, think, I found the reason of error: https://github.com/radare/radare2/blob/1.1.0/libr/socket/run.c#L247
Here ends the original process (whose PID has been saved) and continue new one

radare · 2017-01-20T22:34:34Z

Can you send a PR?

…

On 20 Jan 2017, at 22:50, Polshakov Dmitry ***@***.***> wrote: I, think, I found the reason of error: https://github.com/radare/radare2/blob/1.1.0/libr/socket/run.c#L247 Here ends the original process (whose PID has been saved) and continue new one — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub, or mute the thread.

Diadlo · 2017-01-21T08:40:46Z

@radare I'm trying to fix the issue, but changing sign s/==/!=/ provide a regression.

radare · 2017-01-22T12:56:20Z

Can you add a test case for this?

…

On 21 Jan 2017, at 09:40, Polshakov Dmitry ***@***.***> wrote: @radare I'm trying to fix the issue, but changing sign s/==/!=/ provide a regression. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

Diadlo · 2017-01-22T21:57:52Z

@radare I will try

pragyan1994 · 2017-12-28T09:43:25Z

radare2$: r2 -d ls
Child killed
ptrace: Cannot attach: Invalid argument
Possibly unsigned r2. Please see doc/macos.md
ERRNO: 22 (EINVAL)
[w] Cannot open 'dbg:///bin/ls' for writing.

having this error! How to troubleshoot

Maijin · 2017-12-28T10:10:46Z

This is not the same issue, please see doc/macos.md as written.

radare closed this as completed in 9051fed Jan 13, 2016

crowell reopened this Jan 14, 2016

Maijin added the rarun2 label Oct 24, 2016

radare mentioned this issue Jan 22, 2017

Fix #3951 - change external program output redirecting #6550

Merged

radare closed this as completed in 8a807cc Jan 22, 2017

radare mentioned this issue Jan 31, 2017

Update the siol-branch #6627

Merged

radareorg locked and limited conversation to collaborators Dec 28, 2017

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Rarun2's program redirection doesn't work. #3951

Rarun2's program redirection doesn't work. #3951

akrasuski1 commented Jan 13, 2016

radare commented Jan 13, 2016

akrasuski1 commented Jan 13, 2016

radare commented Jan 13, 2016

akrasuski1 commented Jan 13, 2016

akrasuski1 commented Jan 13, 2016

radare commented Jan 13, 2016

akrasuski1 commented Jan 13, 2016

akrasuski1 commented Jan 14, 2016

radare commented Jan 15, 2016

Maijin commented Jan 24, 2016

radare commented Jan 24, 2016

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Maijin commented Jan 24, 2016

Thaelz commented Oct 24, 2016 •

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radare commented Oct 25, 2016

Maijin commented Oct 25, 2016

Maijin commented Oct 25, 2016

Diadlo commented Jan 20, 2017

radare commented Jan 20, 2017 via email

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Maijin commented Dec 28, 2017 •

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Rarun2's program redirection doesn't work. #3951

Rarun2's program redirection doesn't work. #3951

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akrasuski1 commented Jan 13, 2016

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