1 files changed, 169 insertions, 0 deletions
diff --git a/src/sig.c b/src/sig.c
new file mode 100644
index 0000000..e4d2bf0
--- /dev/null
+++ b/src/sig.c
@@ -0,0 +1,169 @@
+#include <signal.h>
+#include "sig.h"
+
+/**
+  * @file sig.c
+  * @authors djb, jmh
+  * @ref qmail
+  * @brief signal handling functions
+  */
+
+void sig_alarmblock() 
+{ 
+  sig_block(SIGALRM); 
+}
+void sig_alarmunblock() 
+{ 
+  sig_unblock(SIGALRM); 
+}
+void sig_alarmcatch(void (*f)(int))
+{ 
+  sig_catch(SIGALRM,f); 
+}
+void sig_alarmdefault() 
+{ 
+  sig_catch(SIGALRM,SIG_DFL); 
+}
+
+int sig_alarm = SIGALRM;
+
+void sig_block(int sig) 
+{
+  sigset_t ss;
+  sigemptyset(&ss);
+  sigaddset(&ss,sig);
+  sigprocmask(SIG_BLOCK,&ss,(sigset_t *)0);
+}
+
+void sig_unblock(int sig) 
+{
+  sigset_t ss;
+  sigemptyset(&ss);
+  sigaddset(&ss,sig);
+  sigprocmask(SIG_UNBLOCK,&ss,(sigset_t *)0);
+}
+
+void sig_blocknone() 
+{
+  sigset_t ss;
+  sigemptyset(&ss);
+  sigprocmask(SIG_SETMASK,&ss,(sigset_t *)0);
+}
+
+void sig_catch(int sig,void (*f)(int)) 
+{
+  struct sigaction sa;
+  sa.sa_handler = f;
+  sa.sa_flags = 0;
+  sigemptyset(&sa.sa_mask);
+  sigaction(sig,&sa,(struct sigaction *)0);
+}
+
+void sig_pause() 
+{
+  sigset_t ss;
+  sigemptyset(&ss);
+  sigsuspend(&ss);
+}
+
+void sig_pipeignore() 
+{ 
+  sig_catch(SIGPIPE,SIG_IGN); 
+}
+void sig_pipedefault() 
+{ 
+  sig_catch(SIGPIPE,SIG_DFL); 
+}
+
+int sig_pipe = SIGPIPE;
+
+void sig_childblock() 
+{ 
+  sig_block(SIGCHLD); 
+}
+void sig_childunblock() 
+{ 
+  sig_unblock(SIGCHLD); 
+}
+void sig_childcatch(void (*f)(int))
+{ 
+  sig_catch(SIGCHLD,f); 
+}
+void sig_childdefault() 
+{ 
+  sig_catch(SIGCHLD,SIG_DFL); 
+}
+
+int sig_child = SIGCHLD;
+
+void sig_hangupblock() 
+{ 
+  sig_block(SIGHUP); 
+}
+void sig_hangupunblock() 
+{ 
+  sig_unblock(SIGHUP); 
+}
+void sig_hangupcatch(void (*f)(int)) 
+{ 
+  sig_catch(SIGHUP,f); 
+}
+void sig_hangupdefault() 
+{ 
+  sig_catch(SIGHUP,SIG_DFL); 
+}
+
+int sig_hangup = SIGHUP;
+
+void sig_termblock() 
+{ 
+  sig_block(SIGTERM); 
+}
+void sig_termunblock() 
+{ 
+  sig_unblock(SIGTERM); 
+}
+void sig_termcatch( void (*f)(int)) 
+{ 
+  sig_catch(SIGTERM,f); 
+}
+void sig_termdefault() 
+{ 
+  sig_catch(SIGTERM,SIG_DFL); 
+}
+
+int sig_term = SIGTERM;
+
+void sig_bugcatch(void (*f)(int)) 
+{
+  sig_catch(SIGILL,f);
+  sig_catch(SIGABRT,f);
+  sig_catch(SIGFPE,f);
+  sig_catch(SIGBUS,f);
+  sig_catch(SIGSEGV,f);
+#ifdef SIGSYS
+  sig_catch(SIGSYS,f);
+#endif
+#ifdef SIGEMT
+  sig_catch(SIGEMT,f);
+#endif
+}
+void (*sig_defaulthandler)(int) = SIG_DFL;
+
+void sig_miscignore() 
+{
+  sig_catch(SIGVTALRM,SIG_IGN);
+  sig_catch(SIGPROF,SIG_IGN);
+  sig_catch(SIGQUIT,SIG_IGN);
+  sig_catch(SIGINT,SIG_IGN);
+  sig_catch(SIGHUP,SIG_IGN);
+#ifdef SIGXCPU
+  sig_catch(SIGXCPU,SIG_IGN);
+#endif
+#ifdef SIGXFSZ
+  sig_catch(SIGXFSZ,SIG_IGN);
+#endif
+}
+void (*sig_ignorehandler)() = SIG_IGN;
+
+int sig_cont = SIGCONT;