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author | Eduardo Chappa <echappa@gmx.com> | 2013-02-03 00:59:38 -0700 |
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committer | Eduardo Chappa <echappa@gmx.com> | 2013-02-03 00:59:38 -0700 |
commit | 094ca96844842928810f14844413109fc6cdd890 (patch) | |
tree | e60efbb980f38ba9308ccb4fb2b77b87bbc115f3 /imap/src/osdep/unix/sig_psx.c | |
download | alpine-094ca96844842928810f14844413109fc6cdd890.tar.xz |
Initial Alpine Version
Diffstat (limited to 'imap/src/osdep/unix/sig_psx.c')
-rw-r--r-- | imap/src/osdep/unix/sig_psx.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/imap/src/osdep/unix/sig_psx.c b/imap/src/osdep/unix/sig_psx.c new file mode 100644 index 00000000..0d592c31 --- /dev/null +++ b/imap/src/osdep/unix/sig_psx.c @@ -0,0 +1,51 @@ +/* ======================================================================== + * Copyright 1988-2006 University of Washington + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * + * ======================================================================== + */ + +/* + * Program: POSIX Signals + * + * Author: Mark Crispin + * Networks and Distributed Computing + * Computing & Communications + * University of Washington + * Administration Building, AG-44 + * Seattle, WA 98195 + * Internet: MRC@CAC.Washington.EDU + * + * Date: 29 April 1997 + * Last Edited: 30 August 2006 + */ + +#include <signal.h> +#include <string.h> + +#ifndef SA_RESTART +#define SA_RESTART 0 +#endif + +/* Arm a signal + * Accepts: signal number + * desired action + * Returns: old action + */ + +void *arm_signal (int sig,void *action) +{ + struct sigaction nact,oact; + memset (&nact,0,sizeof (struct sigaction)); + sigemptyset (&nact.sa_mask); /* no signals blocked */ + nact.sa_handler = action; /* set signal handler */ + nact.sa_flags = SA_RESTART; /* needed on Linux, nice on SVR4 */ + sigaction (sig,&nact,&oact); /* do the signal action */ + return (void *) oact.sa_handler; +} |