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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libiberty/sigsetmask.c
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Diffstat (limited to 'libiberty/sigsetmask.c')
-rw-r--r--libiberty/sigsetmask.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/libiberty/sigsetmask.c b/libiberty/sigsetmask.c
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+++ b/libiberty/sigsetmask.c
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+/* Version of sigsetmask.c
+ Written by Steve Chamberlain (sac@cygnus.com).
+ Contributed by Cygnus Support.
+ This file is in the public doamin. */
+
+/*
+
+@deftypefn Supplemental int sigsetmask (int @var{set})
+
+Sets the signal mask to the one provided in @var{set} and returns
+the old mask (which, for libiberty's implementation, will always
+be the value @code{1}).
+
+@end deftypefn
+
+*/
+
+#define _POSIX_SOURCE
+#include <ansidecl.h>
+/* Including <sys/types.h> seems to be needed by ISC. */
+#include <sys/types.h>
+#include <signal.h>
+
+extern void abort (void) ATTRIBUTE_NORETURN;
+
+#ifdef SIG_SETMASK
+int
+sigsetmask (int set)
+{
+ sigset_t new_sig;
+ sigset_t old_sig;
+
+ sigemptyset (&new_sig);
+ if (set != 0) {
+ abort(); /* FIXME, we don't know how to translate old mask to new */
+ }
+ sigprocmask(SIG_SETMASK, &new_sig, &old_sig);
+ return 1; /* FIXME, we always return 1 as old value. */
+}
+#endif