sigabbrev_np: New module.

* lib/string.in.h (sigabbrev_np): New declaration.
* lib/sigabbrev_np.c: New file.
* m4/sigabbrev_np.m4: New file.
* m4/string_h.m4 (gl_HEADER_STRING_H_BODY): Test whether sigabbrev_np is
declared.
(gl_HEADER_STRING_H_DEFAULTS): Initialize GNULIB_SIGABBREV_NP,
HAVE_SIGABBREV_NP.
* modules/string (Makefile.am): Substitute GNULIB_SIGABBREV_NP,
HAVE_SIGABBREV_NP.
* modules/sigabbrev_np: New file.
* tests/test-string-c++.cc: Verify the signature of sigabbrev_np.
* doc/glibc-functions/sigabbrev_np.texi: Mention the new module.

1 files changed, 265 insertions, 0 deletions

diff --git a/lib/sigabbrev_np.c b/lib/sigabbrev_np.c
new file mode 100644
index 0000000000..f1c45aa806
--- /dev/null
+++ b/lib/sigabbrev_np.c
@@ -0,0 +1,265 @@
+/* Abbreviated name of signals.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2020.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <string.h>
+
+#include <signal.h>
+
+const char *
+sigabbrev_np (int sig)
+{
+  switch (sig)
+    {
+    /* Signals specified by ISO C.  */
+    case SIGABRT:     return "ABRT";
+    case SIGFPE:      return "FPE";
+    case SIGILL:      return "ILL";
+    case SIGINT:      return "INT";
+    case SIGSEGV:     return "SEGV";
+    case SIGTERM:     return "TERM";
+
+    /* Signals specified by POSIX.
+       <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html>  */
+    #if defined SIGALRM
+    case SIGALRM:     return "ALRM";
+    #endif
+    #if defined SIGBUS
+    case SIGBUS:      return "BUS";
+    #endif
+    #if defined SIGCHLD
+    case SIGCHLD:     return "CHLD";
+    #endif
+    #if defined SIGCONT
+    case SIGCONT:     return "CONT";
+    #endif
+    #if defined SIGHUP
+    case SIGHUP:      return "HUP";
+    #endif
+    #if defined SIGKILL
+    case SIGKILL:     return "KILL";
+    #endif
+    #if defined SIGPIPE
+    case SIGPIPE:     return "PIPE";
+    #endif
+    #if defined SIGQUIT
+    case SIGQUIT:     return "QUIT";
+    #endif
+    #if defined SIGSTOP
+    case SIGSTOP:     return "STOP";
+    #endif
+    #if defined SIGTSTP
+    case SIGTSTP:     return "TSTP";
+    #endif
+    #if defined SIGTTIN
+    case SIGTTIN:     return "TTIN";
+    #endif
+    #if defined SIGTTOU
+    case SIGTTOU:     return "TTOU";
+    #endif
+    #if defined SIGUSR1
+    case SIGUSR1:     return "USR1";
+    #endif
+    #if defined SIGUSR2
+    case SIGUSR2:     return "USR2";
+    #endif
+    #if defined SIGPOLL
+    case SIGPOLL:     return "POLL";
+    #endif
+    #if defined SIGPROF
+    case SIGPROF:     return "PROF";
+    #endif
+    #if defined SIGSYS
+    case SIGSYS:      return "SYS";
+    #endif
+    #if defined SIGTRAP
+    case SIGTRAP:     return "TRAP";
+    #endif
+    #if defined SIGURG
+    case SIGURG:      return "URG";
+    #endif
+    #if defined SIGVTALRM
+    case SIGVTALRM:   return "VTALRM";
+    #endif
+    #if defined SIGXCPU
+    case SIGXCPU:     return "XCPU";
+    #endif
+    #if defined SIGXFSZ
+    case SIGXFSZ:     return "XFSZ";
+    #endif
+
+    /* Other signals on other systems.  */
+    /* native Windows */
+    #if defined SIGBREAK
+    case SIGBREAK:    return "BREAK";
+    #endif
+    /* IRIX */
+    #if defined SIGCKPT
+    case SIGCKPT:     return "CKPT";
+    #endif
+    /* Linux, IRIX, Cygwin */
+    #if defined SIGCLD && SIGCLD != SIGCHLD
+    case SIGCLD:      return "CLD";
+    #endif
+    /* AIX */
+    #if defined SIGCPUFAIL
+    case SIGCPUFAIL:  return "CPUFAIL";
+    #endif
+    /* AIX */
+    #if defined SIGDANGER
+    case SIGDANGER:   return "DANGER";
+    #endif
+    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix, AIX, IRIX, Cygwin, mingw */
+    #if defined SIGEMT
+    case SIGEMT:      return "EMT";
+    #endif
+    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix */
+    #if defined SIGINFO
+    case SIGINFO:     return "INFO";
+    #endif
+    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix, AIX, IRIX, Cygwin */
+    #if defined SIGIO && SIGIO != SIGPOLL
+    case SIGIO:       return "IO";
+    #endif
+    /* Linux, IRIX, Cygwin, mingw */
+    #if defined SIGIOT && SIGIOT != SIGABRT
+    case SIGIOT:      return "IOT";
+    #endif
+    /* AIX */
+    #if defined SIGKAP
+    case SIGKAP:      return "KAP";
+    #endif
+    /* Haiku */
+    #if defined SIGKILLTHR
+    case SIGKILLTHR:  return "KILLTHR";
+    #endif
+    /* Minix */
+    #if defined SIGKMEM
+    case SIGKMEM:     return "KMEM";
+    #endif
+    /* Minix */
+    #if defined SIGKMESS
+    case SIGKMESS:    return "KMESS";
+    #endif
+    /* Minix */
+    #if defined SIGKSIG
+    case SIGKSIG:     return "KSIG";
+    #endif
+    /* Minix */
+    #if defined SIGKSIGSM
+    case SIGKSIGSM:   return "KSIGSM";
+    #endif
+    /* FreeBSD */
+    #if defined SIGLIBRT
+    case SIGLIBRT:    return "LIBRT";
+    #endif
+    /* Cygwin */
+    #if defined SIGLOST && SIGLOST != SIGABRT && SIGLOST != SIGPWR
+    case SIGLOST:     return "LOST";
+    #endif
+    /* AIX */
+    #if defined SIGMIGRATE
+    case SIGMIGRATE:  return "MIGRATE";
+    #endif
+    /* AIX */
+    #if defined SIGMSG
+    case SIGMSG:      return "MSG";
+    #endif
+    /* AIX */
+    #if defined SIGPRE
+    case SIGPRE:      return "PRE";
+    #endif
+    /* IRIX */
+    #if defined SIGPTINTR
+    case SIGPTINTR:   return "PTINTR";
+    #endif
+    /* IRIX */
+    #if defined SIGPTRESCHED
+    case SIGPTRESCHED:return "PTRESCHED";
+    #endif
+    /* Linux, NetBSD, Minix, AIX, IRIX, Cygwin */
+    #if defined SIGPWR
+    case SIGPWR:      return "PWR";
+    #endif
+    /* AIX */
+    #if defined SIGRECONFIG
+    case SIGRECONFIG: return "RECONFIG";
+    #endif
+    /* AIX */
+    #if defined SIGRECOVERY
+    case SIGRECOVERY: return "RECOVERY";
+    #endif
+    /* IRIX */
+    #if defined SIGRESTART
+    case SIGRESTART:  return "RESTART";
+    #endif
+    /* AIX */
+    #if defined SIGRETRACT
+    case SIGRETRACT:  return "RETRACT";
+    #endif
+    /* AIX */
+    #if defined SIGSAK
+    case SIGSAK:      return "SAK";
+    #endif
+    /* Minix */
+    #if defined SIGSNDELAY
+    case SIGSNDELAY:  return "SNDELAY";
+    #endif
+    /* AIX */
+    #if defined SIGSOUND
+    case SIGSOUND:    return "SOUND";
+    #endif
+    /* Linux */
+    #if defined SIGSTKFLT
+    case SIGSTKFLT:   return "STKFLT";
+    #endif
+    /* AIX */
+    #if defined SIGSYSERROR
+    case SIGSYSERROR: return "SYSERROR";
+    #endif
+    /* AIX */
+    #if defined SIGTALRM
+    case SIGTALRM:    return "TALRM";
+    #endif
+    /* FreeBSD, OpenBSD */
+    #if defined SIGTHR
+    case SIGTHR:      return "THR";
+    #endif
+    /* IRIX */
+    #if defined SIGUME
+    case SIGUME:      return "UME";
+    #endif
+    /* AIX */
+    #if defined SIGVIRT
+    case SIGVIRT:     return "VIRT";
+    #endif
+    /* AIX */
+    #if defined SIGWAITING
+    case SIGWAITING:  return "WAITING";
+    #endif
+    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix, AIX, IRIX, Cygwin, Haiku */
+    #if defined SIGWINCH
+    case SIGWINCH:    return "WINCH";
+    #endif
+
+    default:
+      return NULL;
+    }
+}