Pristine unpack of ftp://sunsite.icm.edu.pl/pub/unix/UnixArchive/Distributions/Resear...
[v7.git] / usr / src / libF77 / s_paus.c
1 #include <stdio.h>
2 #define PAUSESIG 15
3
4
5 s_paus(s, n)
6 char *s;
7 long int n;
8 {
9 int i;
10 int waitpause();
11
12 fprintf(stderr, "PAUSE ");
13 if(n > 0)
14         for(i = 0; i<n ; ++i)
15                 putc(*s++, stderr);
16 fprintf(stderr, " statement executed\n");
17 if( isatty(fileno(stdin)) )
18         {
19         fprintf(stderr, "To resume execution, type go.  Any other input will terminate job.\n");
20         if( getchar()!='g' || getchar()!='o' || getchar()!='\n' )
21                 {
22                 fprintf(stderr, "STOP\n");
23                 f_exit();
24                 exit(0);
25                 }
26         }
27 else
28         {
29         fprintf(stderr, "To resume execution, execute a   kill -%d %d   command\n",
30                 PAUSESIG, getpid() );
31         signal(PAUSESIG, waitpause);
32         pause();
33         }
34 fprintf(stderr, "Execution resumes after PAUSE.\n");
35 }
36
37
38
39
40
41 static waitpause()
42 {
43 return;
44 }