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89 lines
1.5 KiB
C
89 lines
1.5 KiB
C
#include "stdio.h"
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#include "f2c.h"
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#define PAUSESIG 15
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#ifdef KR_headers
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#define Void /* void */
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#define Int /* int */
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#else
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#define Void void
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#define Int int
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#undef abs
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#undef min
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#undef max
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#include "stdlib.h"
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#include "signal.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int getpid(void), isatty(int), pause(void);
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#endif
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extern VOID f_exit(Void);
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static VOID
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waitpause(Int n)
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{ n = n; /* shut up compiler warning */
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return;
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}
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static VOID
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#ifdef KR_headers
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s_1paus(fin) FILE *fin;
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#else
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s_1paus(FILE *fin)
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#endif
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{
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fprintf(stderr,
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"To resume execution, type go. Other input will terminate the job.\n");
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fflush(stderr);
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if( getc(fin)!='g' || getc(fin)!='o' || getc(fin)!='\n' ) {
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fprintf(stderr, "STOP\n");
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#ifdef NO_ONEXIT
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f_exit();
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#endif
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exit(0);
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}
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}
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int
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#ifdef KR_headers
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s_paus(s, n) char *s; ftnlen n;
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#else
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s_paus(char *s, ftnlen n)
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#endif
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{
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fprintf(stderr, "PAUSE ");
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if(n > 0)
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fprintf(stderr, " %.*s", (int)n, s);
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fprintf(stderr, " statement executed\n");
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if( isatty(fileno(stdin)) )
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s_1paus(stdin);
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else {
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#ifdef MSDOS
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FILE *fin;
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fin = fopen("con", "r");
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if (!fin) {
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fprintf(stderr, "s_paus: can't open con!\n");
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fflush(stderr);
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exit(1);
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}
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s_1paus(fin);
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fclose(fin);
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#else
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fprintf(stderr,
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"To resume execution, execute a kill -%d %d command\n",
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PAUSESIG, getpid() );
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signal(PAUSESIG, waitpause);
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fflush(stderr);
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pause();
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#endif
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}
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fprintf(stderr, "Execution resumes after PAUSE.\n");
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fflush(stderr);
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return 0; /* NOT REACHED */
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#ifdef __cplusplus
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}
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#endif
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}
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