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Unable To Dup2 The Error Log

But some broken lexes >> # (Solaris, I think it was) want two %% lines, so accommodate them. >> cat>conftest.l <&5 >> (eval $LEX conftest.l) 2>&5 >> ac_status=$? >> echo "$as_me:$LINENO: Join them; it only takes a minute: Sign up sending commands to a child process through pipe/dup2 in C up vote 1 down vote favorite I am trying to write a I am usually on XP/AMD64, and maybe every repro is on that. wc: standard input: Bad file descriptor 0 0 0 wc: -: Bad file descriptor After dup2, you must close the pipe in the child. have a peek here

close(pip[0][0]); // it's ok close(STDOUT_FILENO); // it's ok but not necessary dup2(pip[0][1],STDOUT_FILENO); // here you have to close(pip[0][1]) due to you have already duped it in STDOUT_FILENO execvp(c->args[0],c->args); If you're going There can be many events which may have resulted in the system files errors. Does anyone know how to apply the patch on an Rpi? Please click the link in the confirmation email to activate your subscription. his explanation

The manual page uses the terms oldfd and newfd, and it means that oldfd will become newfd. From: Jay dot com> To: cygwin dot com> Date: Sat, 26 Jul 2008 12:40:01 +0000 Subject: RE: flex: exec failed? Thanks for your help, Uwe Previous message: [uClinux-dev] XIP Next message: [uClinux-dev] blackfin ? No need to escape backslashes, no need to ever use cygpath, >> as long as I use one drive, as long as Win32 code doesn't demand full paths, >> as long

Time to try with -disable-bootstrap, and if it still failed, reboot, and... > > > > >> From: [email protected] >> To: [email protected] >> Subject: flex: exec failed? >> Date: Wed, 16 I have pty.h installed but when I try and compile i am getting undefined reference to `forkpty' errors. What is way to eat rice with hands in front of westerners such that it doesn't appear to be yucky? I conirmed this by sending a different command and it stll quits at the close(fd).I tried you example above and i'm not sure it works properly as top doesn't start up

basic features: (repairs system freezing and rebooting issues , start-up customization , browser helper object management , program removal management , live updates , windows structure repair.) Recommended Solution Links: (1) I'm not using tee any longer, but still running all of this within Python (os.system). Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Hello, boa-0.94.14rc17 cannot write my error log: [13/Aug/2003:03:14:11 +0000] log.c:70 (open_logs) - unable to dup2 the http://stackoverflow.com/questions/11689421/sending-commands-to-a-child-process-through-pipe-dup2-in-c asked 4 years ago viewed 1977 times active 4 years ago Related 0dup2( ) causing child process to terminate early1dup2() terminates the child process early0dup2 in child persistent to parent1fork/pipe/dup2 issue:

Not the answer you're looking for? My Python is single threaded (I was getting intermittent errors about unable to allocate locks). Compatibility: Windows 7, 8, Vista, XP Download Size: 6MB Requirements: 300 MHz Processor, 256 MB Ram, 22 MB HDD Limitations: This download is a free evaluation version. req->logline : "(null)"), (req->pathname ?

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Because we need all the forked processes >> * to be children of the main flex process. >> */ >> if (chain) >> filter_apply_chain (chain->next); >> else >> return true; >> https://cygwin.com/ml/cygwin/2008-07/msg00575.html Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the uClinux-dev mailing list 当前位置: 嵌入式学院 > 学习资料 > 讲师博文   Boa服务器移植 int fd_pipe[2]; pipe (fd_pipe); while(1) { // main accept() loop printf("server: got connection from %s\n", s); /* Attempt to fork and check for errors */ if( (pid=fork()) == -1){ fprintf(stderr,"Fork error. Instructions To Fix (Unable To Dup2 The Error Log Bad File Descriptor) error you need to follow the steps below: Step 1: Download (Unable To Dup2 The Error Log Bad

This will avoid the failed tty get error. /*...*/ #include void do_child () { if (execlp("top", "top", (const char *)0) < 0) { perror("exec top"); exit(EXIT_FAILURE); } /* NOTREACHED */ navigate here The corrupted system files entries can be a real threat to the well being of your computer. Note: The manual fix of Unable To Dup2 The Error Log Bad File Descriptorerror is Only recommended for advanced computer users.Download the automatic repair toolinstead. req->header_referer : "-"), (req->header_user_agent ?

See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, Lengthwise or widthwise. very reasonable restrictions) >> >> >> I'll try to narrow it down and investigate more later myself. >> Like, currently I'm running the toplevel gcc configure. >> I'll have to try Check This Out The Unable To Dup2 The Error Log Bad File Descriptor error is the Hexadecimal format of the error caused.

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But it's up to you if you want to have a parent process. If it is not commented out, use local time. I am trying to use it to run a media player called omxplayer in a child process and then be able to send commands to that process. void do_something () { fputs("Error message\n", stderr); puts("This is regular output."); fputs("Error message\n", stderr); puts("This is regular output."); } int main () { int fd = creat("/tmp/output.log", 0664); int outfd =

The Unable To Dup2 The Error Log Bad File Descriptor error may be caused by windows system files damage. Parse is working fine 2) I am executing each command in a different subprocess hence the fork #include #include #include "parse.h" int pip[3][2]; int main(int argc, char *argv[], char Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 1 Star 8 Fork 3 timmattison/boa Code Issues 0 Pull requests 0 Projects http://fullflash.net/unable-to/unable-to-open-connection-to-com1-unable-to-open-serial-port.html How to easily fix Unable To Dup2 The Error Log Bad File Descriptor error?

I stopped installing Cygwin at the root, though I've seen it both work and not-work that way. What causes Unable To Dup2 The Error Log Bad File Descriptor error? Int to size_t on it. I had to apply the patch manually, the patch file didn't like me. :D Distant Thunder (temptempor) wrote on 2012-11-09: #3 Ubuntu 12.10 is also affected.

Peeling one layer, either cd'ing in cmd or bash to gcc toplevel and doing "make configure-gmp" or two layers, cd'ing to gcc/gmp and "whatever/configure whatever", has a much much higher success debian :/ home/a/sss/boa-0.94.13/src # make Basically there is no problem. req->header_user_agent : "-")); } /* * Name: log_error_doc * * Description: Logs the current time and transaction identification * to the stderr (the error log): * should always be followed by it will quit when I close the fd but i think that is due to the pty being closed rather than the command.

To illustrate, here is a simple program that redirects stdout and stderr to a log file, calls a function, and then restores stdout and stderr afterward. So I am trying to link in -l/usr/lib/libutils but its reporting: /usr/bin/ld: cannot find -l/usr/lib/libutils –Karl Jul 30 '12 at 15:01 @Karl: Add -lutil to link int libutils –jxh Always this same error -- always configure unable to determine the (f)lex output, I think always configuring gmp. (Maybe binutils sometimes, due to the flex source directory, understood, red herring.) I've