add: added projectsHEADmain

1 files changed, 46 insertions, 0 deletions

diff --git a/21sh/myredir/myredir.c b/21sh/myredir/myredir.c
new file mode 100644
index 0000000..071a8bf
--- /dev/null
+++ b/21sh/myredir/myredir.c
@@ -0,0 +1,46 @@
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[])
+{
+    if (argc < 3)
+    {
+        fprintf(stderr, "Missing argument\n");
+        return 2;
+    }
+    // Save stdout
+    int stdout_dup = dup(STDOUT_FILENO);
+
+    int file_fd = open(argv[1], O_CREAT | O_WRONLY, 0644);
+
+    // Redirect stdout to the file
+    dup2(file_fd, STDOUT_FILENO);
+
+    int status;
+
+    pid_t pid = fork();
+    if (pid == 0)
+    {
+        execvp(argv[2], argv + 2);
+        return 127;
+    }
+    else
+    {
+        waitpid(pid, &status, 0);
+        if (WIFEXITED(status))
+        {
+            status = WEXITSTATUS(status);
+            fflush(stdout);
+            dup2(stdout_dup, STDOUT_FILENO);
+            close(stdout_dup);
+        }
+        if (status != 127)
+            printf("%s exited with %d!\n", argv[2], status);
+        else
+            fprintf(stderr, "Missing command\n");
+        return status == 127;
+    }
+}