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getty: small code shrink

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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2010-09-01 11:31:43 +02:00
parent a61ff51b49
commit 9dc04124d5
1 changed files with 7 additions and 9 deletions
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16
loginutils/getty.c
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@ -216,9 +216,7 @@ static void parse_args(char **argv, struct options *op, char **fakehost_p)
ts = argv[0]; /* baud rate(s) */ ts = argv[0]; /* baud rate(s) */
} }
parse_speeds(op, ts); parse_speeds(op, ts);
applet_name = xasprintf("getty: %s", op->tty);
// TODO: if applet_name is set to "getty: TTY", bb_error_msg's get simpler!
// grep for "%s:"
if (argv[2]) if (argv[2])
xsetenv("TERM", argv[2]); xsetenv("TERM", argv[2]);
@ -240,7 +238,7 @@ static void open_tty(const char *tty)
// xchdir("/dev"); // xchdir("/dev");
// xstat(tty, &st); // xstat(tty, &st);
// if (!S_ISCHR(st.st_mode)) // if (!S_ISCHR(st.st_mode))
// bb_error_msg_and_die("%s: not a character device", tty); // bb_error_msg_and_die("not a character device");
if (tty[0] != '/') if (tty[0] != '/')
tty = xasprintf("/dev/%s", tty); /* will leak it */ tty = xasprintf("/dev/%s", tty); /* will leak it */
@ -434,7 +432,7 @@ static char *get_logname(char *logname, unsigned size_logname,
if (read(STDIN_FILENO, &c, 1) < 1) { if (read(STDIN_FILENO, &c, 1) < 1) {
if (errno == EINTR || errno == EIO) if (errno == EINTR || errno == EIO)
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
bb_perror_msg_and_die("%s: read", op->tty); bb_perror_msg_and_die(bb_msg_read_error);
} }
/* BREAK. If we have speeds to try, /* BREAK. If we have speeds to try,
@ -490,7 +488,7 @@ static char *get_logname(char *logname, unsigned size_logname,
if (ascval < ' ') { if (ascval < ' ') {
/* ignore garbage characters */ /* ignore garbage characters */
} else if ((int)(bp - logname) >= size_logname - 1) { } else if ((int)(bp - logname) >= size_logname - 1) {
bb_error_msg_and_die("%s: input overrun", op->tty); bb_error_msg_and_die("input overrun");
} else { } else {
full_write(STDOUT_FILENO, &c, 1); /* echo the character */ full_write(STDOUT_FILENO, &c, 1); /* echo the character */
*bp++ = ascval; /* and store it */ *bp++ = ascval; /* and store it */
@ -574,7 +572,7 @@ static void termios_final(struct options *op, struct termios *tp, struct chardat
/* Finally, make the new settings effective */ /* Finally, make the new settings effective */
if (tcsetattr_stdin_TCSANOW(tp) < 0) if (tcsetattr_stdin_TCSANOW(tp) < 0)
bb_perror_msg_and_die("%s: tcsetattr", op->tty); bb_perror_msg_and_die("tcsetattr");
} }
int getty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int getty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@ -652,7 +650,7 @@ int getty_main(int argc UNUSED_PARAM, char **argv)
* 5 seconds seems to be a good value. * 5 seconds seems to be a good value.
*/ */
if (tcgetattr(0, &termios) < 0) if (tcgetattr(0, &termios) < 0)
bb_perror_msg_and_die("%s: tcgetattr", options.tty); bb_perror_msg_and_die("tcgetattr");
pid = getpid(); pid = getpid();
#ifdef __linux__ #ifdef __linux__
@ -733,5 +731,5 @@ int getty_main(int argc UNUSED_PARAM, char **argv)
* and getty is not suid-root applet. */ * and getty is not suid-root applet. */
/* With -n, logname == NULL, and login will ask for username instead */ /* With -n, logname == NULL, and login will ask for username instead */
BB_EXECLP(options.login, options.login, "--", logname, NULL); BB_EXECLP(options.login, options.login, "--", logname, NULL);
bb_error_msg_and_die("%s: can't exec %s", options.tty, options.login); bb_error_msg_and_die("can't execute '%s'", options.login);
} }