1 files changed, 0 insertions, 117 deletions
diff --git a/mit-pthreads/gen/popen.c b/mit-pthreads/gen/popen.c
deleted file mode 100644
index c15fbdce1fe..00000000000
--- a/mit-pthreads/gen/popen.c
+++ /dev/null
@@ -1,117 +0,0 @@
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-static pid_t *pids = NULL;
-static int pids_size = 0;
-static int pids_top = 0;
-static pthread_mutex_t pids_lock = PTHREAD_MUTEX_INITIALIZER;
-
-FILE *popen(const char *cmd, const char *mode)
-{
-    int fds[2], parent_fd, child_fd, child_target, new_size, i;
-    pid_t pid, *new_pids;
-
-    /* Verify the mode. */
-    if ((*mode != 'r' && *mode != 'w') || mode[1] != 0)
-	    return NULL;
-
-    /* Generate fds, and choose the parent and child fds. */
-    if (pipe(fds) < 0)
-	    return NULL;
-    parent_fd = (*mode == 'r') ? fds[0] : fds[1];
-    child_fd = (*mode == 'r') ? fds[1] : fds[0];
-
-    /* Ensure that there is space in the pid table. */
-    pthread_mutex_lock(&pids_lock);
-    if (pids_size <= parent_fd) {
-	    new_size = parent_fd + 1;
-	    if ((new_pids = malloc(new_size * sizeof(pid_t))) == NULL) {
-    		pthread_mutex_unlock(&pids_lock);
-	        close(parent_fd);
-	        close(child_fd);
-	        return NULL;
-	    }
-		if (pids) {
-			memcpy(new_pids, pids, pids_size * sizeof(pid_t));
-	        free(pids);
-		}
-		while (pids_size < new_size)
-	    	new_pids[pids_size++] = -1;
-		pids = new_pids;
-    }
-    pthread_mutex_unlock(&pids_lock);
-
-    /* Fork off a child process. */
-	switch (pid = fork()) {
-	case -1: /* Failed to fork. */
-		close(parent_fd);
-		close(child_fd);
-		return NULL;
-		break;
-	case 0: /* Child */
-		/*
-		 * Set the child fd to stdout or stdin as appropriate,
-	 	 * and close the parent fd. 
-		 */
-		child_target = (*mode == 'r') ? STDOUT_FILENO : STDIN_FILENO;
-		if (child_fd != child_target) {
-	    	dup2(child_fd, child_target);
-	    	close(child_fd);
-		}
-		close(parent_fd);
-
-		/* Close all parent fds from previous popens(). */
-		for (i = 0; i < pids_top; i++) {
-		    if (pids[i] != -1)
-			close(i);
-		}
-
-		execl("/bin/sh", "sh", "-c", cmd, NULL);
-		exit(1);
-	default:
-		break;
-	}
-
-    /* Record the parent fd in the pids table. */
-    pthread_mutex_lock(&pids_lock);
-    pids[parent_fd] = pid;
-    if (pids_top < parent_fd + 1)
-	    pids_top = parent_fd + 1;
-    pthread_mutex_unlock(&pids_lock);
-
-    /* Close the child fd and return a stdio buffer for the parent fd. */
-    close(child_fd);
-    return fdopen(parent_fd, mode);
-}
-
-int pclose(fp)
-    FILE *fp;
-{
-    pid_t pid, result;
-    int fd, pstat;
-
-    fd = fileno(fp);
-    pthread_mutex_lock(&pids_lock);
-    /* Make sure this is a popened file. */
-    if ((pids_top <= fd) || ((pid = pids[fd]) == -1)) {
-    	pthread_mutex_unlock(&pids_lock);
-		return -1;
-	}
-    pids[fd] = -1;
-    while (pids_top > 0 && pids[pids_top - 1] == -1)
-	    pids_top--;
-    pthread_mutex_unlock(&pids_lock);
-
-    fclose(fp);
-
-    /* Wait for the subprocess to quit. */
-	return (((result = waitpid(pid, &pstat, 0)) == -1) ? -1 : pstat);
-}
-