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#include <stdio.h>
#include <unixio.h>
#include <stdlib.h>
#include <string.h>
int trace = 1;
extern int piped_child();
extern int piped_child_shutdown();
main (argc, argv)
int argc;
char ** argv;
{
static char line[512];
char *linep[] = {line, NULL};
int pid;
int tofd, fromfd;
FILE *in, *out;
while (1)
{
printf("\nEnter a command to run: ");
line[0] = '\0';
fgets(line, 511, stdin);
if (!strlen(line))
exit(2);
line[strlen(line)-1] = '\0';
pid = piped_child(linep, &tofd, &fromfd);
in = fdopen(fromfd, "r");
out = fdopen(tofd, "w");
#if 0
out = fdopen(tofd, "w");
fclose(out);
#endif
do
{
if(!feof(stdin))
{
fprintf(stdout, "> ");
fgets(line, 511, stdin);
fputs(line, out);
}
else
{
fclose(out);
close(tofd);
}
fgets(line, 511, in);
fputs(line, stdout);
line[0] = '\0';
} while (!feof(in));
fprintf(stderr, "waiting for child to stop\n");
piped_child_shutdown(pid);
}
}
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