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#include <fcntl.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
int pid = atoi(argv[1]);
int sfd;
char sname[32];
char buf[1024];
char *s;
int i;
int signal, blocked, ignore, caught;
sprintf(sname, "/proc/%d/stat", pid);
sfd = open(sname, O_RDONLY);
if (sfd == -1) {
perror(sname);
return 1;
}
i = read(sfd, buf, 1024);
buf[i] = '\0';
for (i = 0, s = buf; i < 30; i++) {
while (*++s != ' ') {
if (!*s)
break;
}
}
if (sscanf(s, "%d%d%d%d", &signal, &blocked, &ignore, &caught) != 4) {
fprintf(stderr, "/proc/pid/stat format error\n");
return 1;
}
printf("%8x %8x %8x %8x\n", signal, blocked, ignore, caught);
return 0;
}
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