c13f869432
Follow the POSIX description. SIGTSTP should be sent when the Ctrl-Z characters is encountered, not SIGSTP. Testing: Built with hifive1-revb:nsh (CONFIG_SERIAL_TERMIOS=y, CONFIG_SIG_DEFAULT=y and CONFIG_TTY_SIGTSTP=y)
196 lines
4.9 KiB
C
196 lines
4.9 KiB
C
/****************************************************************************
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* libs/libc/string/lib_strsignal.c
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*
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* Copyright (C) 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <signal.h>
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#include <string.h>
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* We don't know what signals names will be assigned to which signals in
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* advance and we do not want to return a volatile value. One solution is
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* this silly array of useless names:
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*/
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static FAR const char *g_default_sigstr[32] =
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{
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"Signal 0",
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"Signal 1",
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"Signal 2",
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"Signal 3",
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"Signal 4",
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"Signal 5",
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"Signal 6",
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"Signal 7",
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"Signal 8",
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"Signal 9",
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"Signal 10",
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"Signal 11",
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"Signal 12",
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"Signal 13",
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"Signal 14",
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"Signal 15",
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"Signal 16",
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"Signal 17",
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"Signal 18",
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"Signal 19",
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"Signal 20",
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"Signal 21",
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"Signal 22",
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"Signal 23",
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"Signal 24",
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"Signal 25",
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"Signal 26",
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"Signal 27",
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"Signal 28",
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"Signal 29",
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"Signal 30",
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"Signal 31",
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};
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: strsignal
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*
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* Description:
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* The strsignal() function will map the signal number in signum to an
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* implementation-defined string and will return a pointer to it.
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*
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****************************************************************************/
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FAR char *strsignal(int signum)
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{
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/* Handle invalid signals */
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if (!GOOD_SIGNO(signum))
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{
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return (FAR char *)"Invalid Signal";
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}
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/* Handle named signals */
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switch (signum)
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{
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/* Standard signals */
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#ifdef SIGUSR1
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case SIGUSR1:
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return (FAR char *)"SIGUSR1";
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#endif
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#ifdef SIGUSR2
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case SIGUSR2:
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return (FAR char *)"SIGUSR2";
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#endif
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#ifdef SIGALRM
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case SIGALRM:
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return (FAR char *)"SIGALRM";
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#endif
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#ifdef SIGCHLD
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case SIGCHLD:
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return (FAR char *)"SIGCHLD";
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#endif
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#ifdef SIGPOLL
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case SIGPOLL:
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return (FAR char *)"SIGPOLL";
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#endif
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#ifdef SIGSTOP
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case SIGSTOP:
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return (FAR char *)"SIGSTOP";
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#endif
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#ifdef SIGTSTP
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case SIGTSTP:
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return (FAR char *)"SIGTSTP";
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#endif
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#ifdef SIGCONT
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case SIGCONT:
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return (FAR char *)"SIGCONT";
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#endif
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#ifdef SIGKILL
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case SIGKILL:
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return (FAR char *)"SIGKILL";
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#endif
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#ifdef SIGINT
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case SIGINT:
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return (FAR char *)"SIGINT";
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#endif
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#ifdef SIGQUIT
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case SIGQUIT:
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return (FAR char *)"SIGQUIT";
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#endif
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#ifdef SIGTERM
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case SIGTERM:
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return (FAR char *)"SIGTERM";
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#endif
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/* Non-standard signals */
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#ifdef SIGCONDTIMEDOUT
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case SIGCONDTIMEDOUT:
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return (FAR char *)"SIGCONDTIMEDOUT";
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#endif
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#ifdef SIGWORK
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case SIGWORK:
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return (FAR char *)"SIGWORK";
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#endif
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default:
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break;
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}
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/* Return a string devoid is meaning */
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return (FAR char *)g_default_sigstr[signum];
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}
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