From 7a73162607544204032aa66cce755daf21edebda Mon Sep 17 00:00:00 2001 From: Matt Strapp Date: Tue, 24 May 2022 11:18:46 -0500 Subject: Graduate Signed-off-by: Matt Strapp --- OLD/csci4061/100520_breakout/exercise.c | 47 --------------------------------- 1 file changed, 47 deletions(-) delete mode 100644 OLD/csci4061/100520_breakout/exercise.c (limited to 'OLD/csci4061/100520_breakout') diff --git a/OLD/csci4061/100520_breakout/exercise.c b/OLD/csci4061/100520_breakout/exercise.c deleted file mode 100644 index 6d560d5..0000000 --- a/OLD/csci4061/100520_breakout/exercise.c +++ /dev/null @@ -1,47 +0,0 @@ -/* -* Recitation Section Number: -* Breakout Number: -* Member Name -* Member Name -* Member Name -* Member Name -*/ - -#include -#include -#include -#include -#include -#include -#include -#define BUFSIZE 20 -#define PERM 0644 -int main(int argc, char *argv[]) { - int infile; char buffer[BUFSIZE]; - // create/open a file named write.txt - infile = open("write.txt", O_CREAT | O_RDWR | O_TRUNC, PERM); - // write hello world to write.txtS - write(infile, "hello world\n", 12); - // spawn a child process and use this child process to reroute stdout to write.txt - pid_t pid = fork(); - if (!pid) { - dup2(infile, 1); - } - // print pid - printf("Process %d\n", pid); - - // use the child process spawned previously to read the contents from write.txt, restore output to stdout - // and then prints the contents of write.txt to stdout. - if (!pid) { - read(infile, buffer, 20); - int stdout = open("/dev/tty", O_WRONLY); - dup2(1, stdout); - printf("%s\n", buffer); - return 0; - } - // print pid - printf("%d\n", pid); - // close the file write.txt - close(infile); - return 0; -} \ No newline at end of file -- cgit v1.2.3