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tty: export tty_exists() to rest of finit (for plugins)

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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg committed 2021-04-15 08:43:32 +02:00
1 parent 4bb67bc06f
commit 3d1b95aa7a
2 files changed
+5 -4
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src/tty.c
+4 -4
View File
@@ -221,20 +221,20 @@ int tty_parse_args(char *cmd, struct tty *tty)
return 0; return 0;
} }
static int tty_exist(char *dev) int tty_exists(char *dev)
{ {
int fd, result; int fd, result;
struct termios c; struct termios c;
fd = open(dev, O_RDWR); fd = open(dev, O_RDWR);
if (-1 == fd) if (-1 == fd)
return 1; return 0;
/* XXX: Add check for errno == EIO? */ /* XXX: Add check for errno == EIO? */
result = tcgetattr(fd, &c); result = tcgetattr(fd, &c);
close(fd); close(fd);
return result; return result == 0;
} }
int tty_exec(svc_t *tty) int tty_exec(svc_t *tty)
@@ -261,7 +261,7 @@ int tty_exec(svc_t *tty)
return EX_CONFIG; return EX_CONFIG;
} }
if (tty_exist(dev)) { if (!tty_exists(dev)) {
_d("%s: Not a valid TTY: %s", dev, strerror(errno)); _d("%s: Not a valid TTY: %s", dev, strerror(errno));
return EX_OSFILE; return EX_OSFILE;
} }
src/tty.h
+1
View File
@@ -49,6 +49,7 @@ char *tty_atcon (void);
int tty_parse_args (char *cmdline, struct tty *tty); int tty_parse_args (char *cmdline, struct tty *tty);
int tty_exists (char *dev);
int tty_exec (svc_t *tty); int tty_exec (svc_t *tty);
int tty_fallback (char *file); int tty_fallback (char *file);