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Questions tagged [sigpipe]

SIGPIPE is the signal sent to a process when it attempts to write to a pipe without a process connected to the other end.

On POSIX-compliant platforms, SIGPIPE is the signal sent to a process when it attempts to write to a pipe without a process connected to the other end. The symbolic constant for SIGPIPE is defined in the header file signal.h. Symbolic signal names are used because signal numbers can vary across platforms.

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iOS SWIFT application - How to ignore SIGPIPE signal globally?

I am trying to ignore SIGPIPE signal that is thrown by a third party SDK I am using in my Swift application. How do I make my application ignore SIGPIPE signal globally?
Natasha
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Check for a broken pipe before trying to write to it?

Is it possible to check if a pipe is broken before trying to write/read to it, so I can just skip it and continue with the program? I'm utilizing a while loop to write to pipes communicating from the Parent to multiple Children. Over the course of…
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Writing on a TCP socket closed by the peer

I have a client-server application where each side communicate with the other via TCP socket. I properly establish the connection and then I crash the server BEFORE any data is written on the socket by the client. What I see is that the first…
JustTrying
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`last` while reading file from external command crashes perl

I have the following code: #!/usr/bin/env perl use 5.0360; use warnings FATAL => 'all'; use autodie ':default'; use Devel::Confess 'color'; # not essential, but better error reporting open my $view, "zcat a.big.file.vcf.gz|"; # zcat or…
con
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Python - How to catch a broken pipe

I have just learned about SIGPIPE, and then read about how to handle these in Python. Among other sources, I have read: How to handle a broken pipe (SIGPIPE) in python? Let's say that the pipe reading script exits, then all the answers suggest that…
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SIGPIPE crash when switching background task

I'm experiencing a weird crash when sending my app into the background, loading a new app, switching the device into sleep mode, waking up the device, closing the new app and then opening my app from the background tasks. A black screen will appear…
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TCP client-server SIGPIPE

I am designing and testing a client server program based on TCP sockets(Internet domain). Currently , I am testing it on my local machine and not able to understand the following about SIGPIPE. *. SIGPIPE appears quite randomly. Can it be…
footloose
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Network code stopping with SIGPIPE

I am developing in iOS. The App call the function in library , and send the packet via wifi. When the App is running , I push the power button(not home button) on iPhone 5C and push again to open it. But it crash... And it did not show which line…
Martin
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C++ & OpenSSL: SIGPIPE when writing in closed pipe

I'm coding a C++ SSL Server for TCP Connections on Linux. When the program uses SSL_write() to write into a closed pipe, a SIGPIPE-Exception gets thrown which causes the program to shut down. I know that this is normal behaviour. But the program…
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Broken pipe (EPIPE) on connection to loopback address

I'm currently testing my networking code. This involves making a connection via the IPv4 loopback address (127.0.0.1). Unfortunately the program often (not always) gives an EPIPE error on sending data. I am using Berkeley network sockets and…
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In Linux crontab, stderr of my program must be redirected, why?

I write a program, which can output to stderr. When I run it by Linux crontab, I must redirect the stderr. if not, the program will exit with a SIGPIPE. Why? NOT OK 45 10 * * * /home/sandy/test > /home/sandy/test.log & OK 45 10 * * *…
sandy
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SIGPIPE With Running Program

I have two daemons, and A is speaking to B. B is listening on a port, and A opens a tcp connection to that port. A is able to open a socket to B, but when it attempts to actually write said socket, I get a SIGPIPE, so I'm trying to figure out where…
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How to avoid SIGPIPE (due to a timeout?) when debugging an X11 program?

Sometimes, when I'm debugging my Qt program on X11, I need to have a breakpoint at a point when the program has created a window (QWidget), but no window has yet been shown. In this case, when I resume the program from this breakpoint after some…
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python3: SIGPIPE missing from my signal lib

I have a program that previously used the following declaration at the top of it. # no idea what this does but maybe it stops a SIGPIPE broken error from occuring. from signal import signal, SIGPIPE, SIG_DFL signal(SIGPIPE,SIG_DFL) The program…
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Why doesn't my SIGPIPE print the message?

$ perl5.8 -w -e 'if (my $pid=open(my $P, "|-")) { kill("SIGKILL",$pid); sleep(2); print $P "test1:$pid\n";}; ' Broken pipe Now I'm trying to catch that broken pipe $ perl5.8 -w -e '$SIG{PIPE} = sub {print "SIGPIPE\n";return 1}; if (my…
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