Return to pidwait.c CVS log

Up to [CSRG BSD Unix] / 43BSD / contrib / mh / sbr

Annotation of 43BSD/contrib/mh/sbr/pidwait.c, revision 1.1.1.1

1.1       root        1: /* pidwait.c - wait for child to exit */
                      2: 
                      3: #include "../h/mh.h"
                      4: #include <signal.h>
                      5: #include <stdio.h>
                      6: #ifdef BSD42
                      7: #include <sys/wait.h>
                      8: #endif BSD42
                      9: 
                     10: 
                     11: int     pidwait (id, sigsok)
                     12: register int     id,
                     13:                 sigsok;
                     14: {
                     15:     register int    pid;
                     16: #ifndef        BSD42
                     17:     int     status;
                     18: #else  BSD42
                     19:     union wait status;
                     20: #endif BSD42
                     21:     int     (*hstat) (), (*istat) (), (*qstat) (), (*tstat) ();
                     22: 
                     23:     if (sigsok == NOTOK) {
                     24:        hstat = signal (SIGHUP, SIG_IGN);
                     25:        istat = signal (SIGINT, SIG_IGN);
                     26:        qstat = signal (SIGQUIT, SIG_IGN);
                     27:        tstat = signal (SIGTERM, SIG_IGN);
                     28:     }
                     29: 
                     30:     while ((pid = wait (&status)) != NOTOK && pid != id)
                     31:        continue;
                     32: 
                     33:     if (sigsok == NOTOK) {
                     34:        (void) signal (SIGHUP, hstat);
                     35:        (void) signal (SIGINT, istat);
                     36:        (void) signal (SIGQUIT, qstat);
                     37:        (void) signal (SIGTERM, tstat);
                     38:     }
                     39: 
                     40: #ifndef        BSD42
                     41:     return (pid == NOTOK ? NOTOK : status);
                     42: #else  BSD42
                     43:     return (pid == NOTOK ? NOTOK : status.w_status);
                     44: #endif BSD42
                     45: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.