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/*
* libstatgrab
* https://libstatgrab.org
* Copyright (C) 2003-2004 Peter Saunders
* Copyright (C) 2003-2019 Tim Bishop
* Copyright (C) 2003-2013 Adam Sampson
* Copyright (C) 2012-2019 Jens Rehsack
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "helpers.h"
#include <tools.h>
#include <statgrab.h>
#include <poll.h>
#ifdef WITH_LIBLOG4CPLUS
#include <libgen.h>
#endif
#include <stdarg.h>
int *sig_flags[NSIG];
static void
sig_flagger(int signo) {
if( sig_flags[signo] != NULL )
++(*sig_flags[signo]);
}
int
register_sig_flagger(int signo, int *flag_ptr)
{
if( ( sig_flags[signo] != NULL ) && (flag_ptr != NULL) )
return EINVAL;
if(flag_ptr) {
signal( signo, NULL );
sig_flags[signo] = NULL;
}
else {
sig_flags[signo] = flag_ptr;
signal( signo, sig_flagger );
}
return 0;
}
int
sg_warn(const char *prefix)
{
sg_error_details err_det;
char *errmsg = NULL;
int rc;
sg_error errc;
if( SG_ERROR_NONE != ( errc = sg_get_error_details(&err_det) ) ) {
fprintf(stderr, "can't get error details (%d, %s)\n", errc, sg_str_error(errc));
return 0;
}
if( NULL == sg_strperror(&errmsg, &err_det) ) {
errc = sg_get_error();
fprintf(stderr, "panic: can't prepare error message (%d, %s)\n", errc, sg_str_error(errc));
return 0;
}
rc = fprintf( stderr, "%s: %s\n", prefix, errmsg );
free( errmsg );
return rc;
}
void
sg_die(const char *prefix, int exit_code)
{
sg_error_details err_det;
char *errmsg = NULL;
sg_error errc;
if( SG_ERROR_NONE != ( errc = sg_get_error_details(&err_det) ) ) {
fprintf(stderr, "panic: can't get error details (%d, %s)\n", errc, sg_str_error(errc));
exit(exit_code);
}
if( NULL == sg_strperror(&errmsg, &err_det) ) {
errc = sg_get_error();
fprintf(stderr, "panic: can't prepare error message (%d, %s)\n", errc, sg_str_error(errc));
exit(exit_code);
}
fprintf( stderr, "%s: %s\n", prefix, errmsg );
free( errmsg );
exit(exit_code);
}
static void
err_doit(int errnoflag, int error, const char *fmt, va_list ap)
{
char buf[4096];
int printed;
printed = vsnprintf( buf, sizeof(buf), fmt, ap);
if(errnoflag)
snprintf(buf + printed, sizeof(buf) - printed, ": %s", strerror(error) );
fflush(stderr);
fputs(buf, stderr);
fputs("\n", stderr);
fflush(NULL);
}
void
die(int error, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, error, fmt, ap);
va_end(ap);
exit(1);
}
int
inp_wait(int delay) {
struct pollfd pfd[1];
pfd[0].fd = STDIN_FILENO;
pfd[0].events = POLLRDNORM;
if( poll( pfd, 1, (int)(delay * 1000) ) > 0 ) {
for(;;) {
int ch;
int len = read(STDIN_FILENO, &ch, 1);
if (len == -1 && errno == EINTR)
continue;
if (len < 1) {
perror("read");
exit(1);
}
return ch;
}
}
return 0;
}
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