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a9c542e416
* src/timeout.c (WIFSIGNALED, WTERMSIG): Remove definitions, now that gnulib guarantees they are defined in <sys/wait.h>. * src/operand2sig.c: Likewise. * src/kill.c: Likewise.
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* operand2sig.c -- common function for parsing signal specifications
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Copyright (C) 2008-2010 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Extracted from kill.c/timeout.c by Pádraig Brady.
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FIXME: Move this to gnulib/str2sig.c */
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/* Convert OPERAND to a signal number with printable representation SIGNAME.
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Return the signal number, or -1 if unsuccessful. */
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#include <config.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include "system.h"
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#include "error.h"
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#include "sig2str.h"
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#include "operand2sig.h"
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extern int
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operand2sig (char const *operand, char *signame)
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{
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int signum;
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if (ISDIGIT (*operand))
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{
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char *endp;
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long int l = (errno = 0, strtol (operand, &endp, 10));
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int i = l;
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signum = (operand == endp || *endp || errno || i != l ? -1
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: WIFSIGNALED (i) ? WTERMSIG (i) : i);
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}
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else
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{
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/* Convert signal to upper case in the C locale, not in the
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current locale. Don't assume ASCII; it might be EBCDIC. */
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char *upcased = xstrdup (operand);
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char *p;
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for (p = upcased; *p; p++)
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if (strchr ("abcdefghijklmnopqrstuvwxyz", *p))
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*p += 'A' - 'a';
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/* Look for the signal name, possibly prefixed by "SIG",
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and possibly lowercased. */
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if (!(str2sig (upcased, &signum) == 0
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|| (upcased[0] == 'S' && upcased[1] == 'I' && upcased[2] == 'G'
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&& str2sig (upcased + 3, &signum) == 0)))
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signum = -1;
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free (upcased);
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}
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if (signum < 0 || sig2str (signum, signame) != 0)
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{
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error (0, 0, _("%s: invalid signal"), operand);
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return -1;
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}
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return signum;
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}
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