nano

commit 35b5976e69a48a3555d2b3f4436dc740998b9358
parent fe2042da8aef7ae828557724debd7c65dc5106dd
Author: Chris Allegretta <chrisa@asty.org>
Date:   Sun, 21 Mar 2010 05:31:43 +0000

2010-03-21 Chris Allegretta <chrisa@asty.org>
        * nano.c (page_stdin et al): Don't attempt to reset/reopen the terminal
          settings when reading stdin if it was aborted with SIGINT.  May fix Savannah
          bug 29114 reported by  Mike Frysinger.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4489 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Diffstat:
M
ChangeLog
 | 
5
+++++
M
src/nano.c
 | 
11
++++++++---

2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,8 @@
+2010-03-21 Chris Allegretta <chrisa@asty.org>
+	* nano.c (page_stdin et al): Don't attempt to reset/reopen the terminal
+	  settings when reading stdin if it was aborted with SIGINT.  May fix Savannah
+	  bug 29114 reported by  Mike Frysinger.
+
 2010-03-21 Mike Frysinger <vapier@gentoo.org>
 	* doc/syntax/c.nanorc: Add additional support for #include_next and #pragma
 
diff --git a/src/nano.c b/src/nano.c
@@ -1067,6 +1067,8 @@ void do_exit(void)
 
 static struct sigaction pager_oldaction, pager_newaction;  /* Original and temporary handlers for SIGINT. */
 static bool pager_sig_failed = FALSE; /* Did sigaction() fail without changing the signal handlers? */
+static bool pager_input_aborted = FALSE; /* Did someone invoke the pager and abort it via ^C? */
+
 
 /* Things which need to be run regardless of whether
    we finished the stdin pipe correctly or not */
@@ -1087,7 +1089,8 @@ void finish_stdin_pager(void)
 
     dup2(ttystdin,0);
     close(ttystdin);
-    tcgetattr(0, &oldterm);
+    if (!pager_input_aborted)
+	tcgetattr(0, &oldterm);
     if (!pager_sig_failed && sigaction(SIGINT, &pager_oldaction, NULL) == -1)
         nperror("sigaction");
     terminal_init();
@@ -1099,13 +1102,15 @@ void finish_stdin_pager(void)
 RETSIGTYPE cancel_stdin_pager(int signal)
 {
     /* Currently do nothing, just handle the intr silently */
+    pager_input_aborted = TRUE;
 }
 
 /* Let nano read stdin for the first file at least */
 void stdin_pager(void)
 {
     endwin();
-    tcsetattr(0, TCSANOW, &oldterm);
+    if (!pager_input_aborted)
+	tcsetattr(0, TCSANOW, &oldterm);
     fprintf(stderr, _("Reading from stdin, ^C to abort\n"));
 
     /* Set things up so that Ctrl-C will cancel the new process. */
@@ -1125,7 +1130,7 @@ void stdin_pager(void)
 	    nperror("sigaction");
 	}
     }
- 
+
     open_buffer("", FALSE);
     finish_stdin_pager();
 }