CURLOPT_NOSIGNAL(3)

CURLOPT_NOSIGNAL(3) curl_easy_setopt options  CURLOPT_NOSIGNAL(3)

NAME

     CURLOPT_NOSIGNAL - skip all signal handling

SYNOPSIS

     #include <curl/curl.h>

     CURLcode  curl_easy_setopt(CURL  *handle,  CURLOPT_NOSIGNAL,
     long onoff);

DESCRIPTION

     If onoff is 1, libcurl  will  not  use  any  functions  that
     install  signal handlers or any functions that cause signals
     to be sent to the process. This  option  is  here  to  allow
     multi-threaded   unix  applications  to  still  set/use  all
     timeout options etc, without risking getting signals.

     If this option is set and libcurl has been  built  with  the
     standard  name  resolver,  timeouts will not occur while the
     name resolve takes place.  Consider  building  libcurl  with
     the c-ares or threaded resolver backends to enable asynchro-
     nous DNS lookups,  to  enable  timeouts  for  name  resolves
     without the use of signals.

     Setting CURLOPT_NOSIGNAL(3) to 1 makes libcurl NOT  ask  the
     system  to  ignore SIGPIPE signals, which otherwise are sent
     by the system when trying to send data to a socket which  is
     closed  in  the  other end. libcurl makes an effort to never
     cause such SIGPIPEs to trigger, but some  operating  systems
     have  no way to avoid them and even on those that have there
     are some corner cases when they may still  happen,  contrary
     to our desire. In addition, using CURLAUTH_NTLM_WB authenti-
     cation could cause a SIGCHLD signal to be raised.

DEFAULT

     0

AVAILABILITY

     Added in 7.10

RETURN VALUE

     Returns  CURLE_OK  if   the   option   is   supported,   and
     CURLE_UNKNOWN_OPTION if not.

libcurl 7.58.0   Last change: February 03, 2016                 1