| trap.c (213760) | trap.c (213811) |
|---|---|
| 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kenneth Almquist. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 22 unchanged lines hidden (view full) --- 31 */ 32 33#ifndef lint 34#if 0 35static char sccsid[] = "@(#)trap.c 8.5 (Berkeley) 6/5/95"; 36#endif 37#endif /* not lint */ 38#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kenneth Almquist. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 22 unchanged lines hidden (view full) --- 31 */ 32 33#ifndef lint 34#if 0 35static char sccsid[] = "@(#)trap.c 8.5 (Berkeley) 6/5/95"; 36#endif 37#endif /* not lint */ 38#include <sys/cdefs.h> |
| 39__FBSDID("$FreeBSD: head/bin/sh/trap.c 213760 2010-10-13 04:01:01Z obrien $"); | 39__FBSDID("$FreeBSD: head/bin/sh/trap.c 213811 2010-10-13 22:18:03Z obrien $"); |
| 40 41#include <signal.h> 42#include <unistd.h> 43#include <stdlib.h> 44 45#include "shell.h" 46#include "main.h" 47#include "nodes.h" /* for other headers */ --- 27 unchanged lines hidden (view full) --- 75int pendingsigs; /* indicates some signal received */ 76int in_dotrap; /* do we execute in a trap handler? */ 77static char *volatile trap[NSIG]; /* trap handler commands */ 78static volatile sig_atomic_t gotsig[NSIG]; 79 /* indicates specified signal received */ 80static int ignore_sigchld; /* Used while handling SIGCHLD traps. */ 81volatile sig_atomic_t gotwinch; 82 | 40 41#include <signal.h> 42#include <unistd.h> 43#include <stdlib.h> 44 45#include "shell.h" 46#include "main.h" 47#include "nodes.h" /* for other headers */ --- 27 unchanged lines hidden (view full) --- 75int pendingsigs; /* indicates some signal received */ 76int in_dotrap; /* do we execute in a trap handler? */ 77static char *volatile trap[NSIG]; /* trap handler commands */ 78static volatile sig_atomic_t gotsig[NSIG]; 79 /* indicates specified signal received */ 80static int ignore_sigchld; /* Used while handling SIGCHLD traps. */ 81volatile sig_atomic_t gotwinch; 82 |
| 83STATIC int getsigaction(int, sig_t *); | 83static int getsigaction(int, sig_t *); |
| 84 85 86/* 87 * Map a string to a signal number. 88 * 89 * Note: the signal number may exceed NSIG. 90 */ | 84 85 86/* 87 * Map a string to a signal number. 88 * 89 * Note: the signal number may exceed NSIG. 90 */ |
| 91STATIC int | 91static int |
| 92sigstring_to_signum(char *sig) 93{ 94 95 if (is_number(sig)) { 96 int signo; 97 98 signo = atoi(sig); 99 return ((signo >= 0 && signo < NSIG) ? signo : (-1)); --- 11 unchanged lines hidden (view full) --- 111 } 112 return (-1); 113} 114 115 116/* 117 * Print a list of valid signal names. 118 */ | 92sigstring_to_signum(char *sig) 93{ 94 95 if (is_number(sig)) { 96 int signo; 97 98 signo = atoi(sig); 99 return ((signo >= 0 && signo < NSIG) ? signo : (-1)); --- 11 unchanged lines hidden (view full) --- 111 } 112 return (-1); 113} 114 115 116/* 117 * Print a list of valid signal names. 118 */ |
| 119STATIC void | 119static void |
| 120printsignals(void) 121{ 122 int n, outlen; 123 124 outlen = 0; 125 for (n = 1; n < sys_nsig; n++) { 126 if (sys_signame[n]) { 127 out1fmt("%s", sys_signame[n]); --- 201 unchanged lines hidden (view full) --- 329 sigemptyset(&sa.sa_mask); 330 sigaction(signo, &sa, NULL); 331} 332 333 334/* 335 * Return the current setting for sig w/o changing it. 336 */ | 120printsignals(void) 121{ 122 int n, outlen; 123 124 outlen = 0; 125 for (n = 1; n < sys_nsig; n++) { 126 if (sys_signame[n]) { 127 out1fmt("%s", sys_signame[n]); --- 201 unchanged lines hidden (view full) --- 329 sigemptyset(&sa.sa_mask); 330 sigaction(signo, &sa, NULL); 331} 332 333 334/* 335 * Return the current setting for sig w/o changing it. 336 */ |
| 337STATIC int | 337static int |
| 338getsigaction(int signo, sig_t *sigact) 339{ 340 struct sigaction sa; 341 342 if (sigaction(signo, (struct sigaction *)0, &sa) == -1) 343 return 0; 344 *sigact = (sig_t) sa.sa_handler; 345 return 1; --- 157 unchanged lines hidden --- | 338getsigaction(int signo, sig_t *sigact) 339{ 340 struct sigaction sa; 341 342 if (sigaction(signo, (struct sigaction *)0, &sa) == -1) 343 return 0; 344 *sigact = (sig_t) sa.sa_handler; 345 return 1; --- 157 unchanged lines hidden --- |