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/* pidstatus.c -- report child's status
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include "h/mh.h"
#include "pidstatus.h"
/*
* Return 0 if the command exited with an exit code of zero, a nonzero code
* otherwise.
*
* Print out an appropriate status message we didn't exit with an exit code
* of zero.
*/
int
pidstatus (int status, FILE *fp, char *cp)
{
char *mesg;
int num;
bool lookup;
char *signame;
if (WIFEXITED(status)) {
status = WEXITSTATUS(status);
if (status) {
if (cp)
fprintf (fp, "%s: ", cp);
fprintf(fp, "exited %d\n", status);
}
return status;
}
if (WIFSIGNALED(status)) {
mesg = "signalled";
num = WTERMSIG(status);
if (num == SIGINT)
return status;
lookup = true;
} else if (WIFSTOPPED(status)) {
mesg = "stopped";
num = WSTOPSIG(status);
lookup = true;
} else if (WIFCONTINUED(status)) {
mesg = "continued";
num = -1;
lookup = false;
} else {
mesg = "bizarre wait(2) status";
num = status;
lookup = false;
}
if (cp)
fprintf(fp, "%s: ", cp);
fputs(mesg, fp);
if (num != -1) {
fprintf(fp, " %#x", (unsigned)num);
if (lookup) {
errno = 0;
signame = strsignal(num);
if (errno)
signame = "invalid";
putc(' ', fp);
fputs(signame, fp);
}
}
if (WCOREDUMP(status))
fputs(", core dumped", fp);
putc('\n', fp);
return status;
}
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