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/*
* UCW Library -- Formatting of Process Exit Status
*
* (c) 2004--2012 Martin Mares <mj@ucw.cz>
*
* This software may be freely distributed and used according to the terms
* of the GNU Lesser General Public License.
*/
#include <ucw/lib.h>
#include <ucw/process.h>
#include <ucw/signames.h>
#include <stdio.h>
#include <sys/wait.h>
#include <errno.h>
int
format_exit_status(char *msg, int stat)
{
if (stat < 0)
sprintf(msg, "failed to fork (err=%d)", errno);
else if (WIFEXITED(stat) && WEXITSTATUS(stat) < 256)
{
if (WEXITSTATUS(stat))
sprintf(msg, "died with exit code %d", WEXITSTATUS(stat));
else
{
msg[0] = 0;
return 0;
}
}
else if (WIFSIGNALED(stat))
{
int sig = WTERMSIG(stat);
const char *sn = sig_number_to_name(sig);
sprintf(msg, "died on signal %d (%s)", sig, (sn ? : "unknown"));
}
else
sprintf(msg, "died with status %x", stat);
return 1;
}