fix piping lnav

9 years ago · 66c5d9413e
parent 7efedcdafc
commit 66c5d9413e
1 changed files with 3 additions and 1 deletions
--- a/src/piper_proc.cc
+++ b/src/piper_proc.cc
@ -111,7 +111,9 @@ piper_proc::piper_proc(int pipefd, bool timestamp, const char *filename)
        int nullfd;

        nullfd = open("/dev/null", O_RDWR);
-        dup2(nullfd, STDIN_FILENO);
+        if (pipefd != STDIN_FILENO) {
+            dup2(nullfd, STDIN_FILENO);
+        }
        dup2(nullfd, STDOUT_FILENO);
        for (int fd_to_close = 0; fd_to_close < 1024; fd_to_close++) {
            int flags;