fzy

commit a73ce3c7d945c166c606fd9f2b4ed1a59ba1c51d
parent b5e1915aaa0cb425c0737b1968ed9947a977167a
Author: John Hawthorn <john.hawthorn@gmail.com>
Date:   Mon, 16 May 2016 19:58:04 -0700

Check errors when opening tty

Opening the tty may fail (for example if the wrong file is specified).
We now print an error and abort when this happens.

Diffstat:
M
CHANGELOG.md
 | 
1
+
M
tty.c
 | 
18
++++++++++++++++--

2 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,7 @@ Features:
 Bugfixes:
 
   - Fixed last line of results not being cleared on exit
+  - Check errors when opening the TTY device
 
 ## 0.3 (April 25, 2016)
 
diff --git a/tty.c b/tty.c
@@ -20,12 +20,26 @@ void tty_close(tty_t *tty) {
 
 void tty_init(tty_t *tty, const char *tty_filename) {
 	tty->fdin = open(tty_filename, O_RDONLY);
+	if (tty->fdin < 0) {
+		perror("Failed to open tty");
+		exit(EXIT_FAILURE);
+	}
+
 	tty->fout = fopen(tty_filename, "w");
-	if (setvbuf(tty->fout, NULL, _IOFBF, 4096))
+	if (!tty->fout) {
+		perror("Failed to open tty");
+		exit(EXIT_FAILURE);
+	}
+
+	if (setvbuf(tty->fout, NULL, _IOFBF, 4096)) {
 		perror("setvbuf");
+		exit(EXIT_FAILURE);
+	}
 
-	if (tcgetattr(tty->fdin, &tty->original_termios))
+	if (tcgetattr(tty->fdin, &tty->original_termios)) {
 		perror("tcgetattr");
+		exit(EXIT_FAILURE);
+	}
 
 	struct termios new_termios = tty->original_termios;