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Diffstat (limited to 'package/heirloom-cpio/src/sigpause.c')
| -rw-r--r-- | package/heirloom-cpio/src/sigpause.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/package/heirloom-cpio/src/sigpause.c b/package/heirloom-cpio/src/sigpause.c new file mode 100644 index 000000000..504a5ed4d --- /dev/null +++ b/package/heirloom-cpio/src/sigpause.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2004 Gunnar Ritter + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute + * it freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * + * 3. This notice may not be removed or altered from any source distribution. + */ +/* Sccsid @(#)sigpause.c 1.6 (gritter) 1/22/06 */ + +#if defined (__FreeBSD__) || defined (__dietlibc__) || defined (__NetBSD__) || \ + defined (__OpenBSD__) || defined (__DragonFly__) || defined (__APPLE__) +#include <signal.h> +#include "sigset.h" + +int +sigpause(int sig) +{ + sigset_t nset, oset; + int ret; + + if (sig <= 0) + return -1; + sigemptyset(&nset); + sigaddset(&nset, sig); + if (sigprocmask(SIG_UNBLOCK, &nset, &oset) < 0) + return -1; + sigemptyset(&nset); + ret = sigsuspend(&nset); + if (sigprocmask(SIG_SETMASK, &oset, (sigset_t *)0) < 0) + ret = -1; + return ret; +} +#endif /* __FreeBSD__ || __dietlibc__ || __NetBSD__ || __OpenBSD__ || + __DragonFly__ || __APPLE__ */ |