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| author | Sami Kerola | 2017-07-30 15:45:59 +0200 |
|---|---|---|
| committer | Sami Kerola | 2017-08-05 17:04:37 +0200 |
| commit | 11841430c9b94d4f0246005a826a1c17a5af972d (patch) | |
| tree | 9c6c30e49a03e6b1e851c96ae5cfe704ef057fe0 /term-utils/agetty.c | |
| parent | agetty: remove dead DO_DEVFS_FIDDLING code segment (diff) | |
| download | kernel-qcow2-util-linux-11841430c9b94d4f0246005a826a1c17a5af972d.tar.gz kernel-qcow2-util-linux-11841430c9b94d4f0246005a826a1c17a5af972d.tar.xz kernel-qcow2-util-linux-11841430c9b94d4f0246005a826a1c17a5af972d.zip | |
agetty: add --list-speeds option
Proposed-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Diffstat (limited to 'term-utils/agetty.c')
| -rw-r--r-- | term-utils/agetty.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/term-utils/agetty.c b/term-utils/agetty.c index a95da6f3d..b67c2d0ff 100644 --- a/term-utils/agetty.c +++ b/term-utils/agetty.c @@ -298,6 +298,7 @@ static void open_tty(char *tty, struct termios *tp, struct options *op); static void termio_init(struct options *op, struct termios *tp); static void reset_vc (const struct options *op, struct termios *tp); static void auto_baud(struct termios *tp); +static void list_speeds(void) __attribute__((__noreturn__)); static void output_special_char (unsigned char c, struct options *op, struct termios *tp, FILE *fp); static void do_prompt(struct options *op, struct termios *tp); @@ -632,6 +633,7 @@ static void parse_args(int argc, char **argv, struct options *op) ERASE_CHARS_OPTION, KILL_CHARS_OPTION, RELOAD_OPTION, + LIST_SPEEDS_OPTION, }; const struct option longopts[] = { { "8bits", no_argument, NULL, '8' }, @@ -649,6 +651,7 @@ static void parse_args(int argc, char **argv, struct options *op) { "login-program", required_argument, NULL, 'l' }, { "local-line", optional_argument, NULL, 'L' }, { "extract-baud", no_argument, NULL, 'm' }, + { "list-speeds", no_argument, NULL, LIST_SPEEDS_OPTION }, { "skip-login", no_argument, NULL, 'n' }, { "nonewline", no_argument, NULL, 'N' }, { "login-options", required_argument, NULL, 'o' }, @@ -784,6 +787,8 @@ static void parse_args(int argc, char **argv, struct options *op) case RELOAD_OPTION: reload_agettys(); exit(EXIT_SUCCESS); + case LIST_SPEEDS_OPTION: + list_speeds(); case VERSION_OPTION: printf(UTIL_LINUX_VERSION); exit(EXIT_SUCCESS); @@ -2073,6 +2078,7 @@ static void __attribute__((__noreturn__)) usage(void) fputs(_(" --delay <number> sleep seconds before prompt\n"), out); fputs(_(" --nice <number> run login with this priority\n"), out); fputs(_(" --reload reload prompts on running agetty instances\n"), out); + fputs(_(" --list-speeds display supported baud rates\n"), out); printf( " --help %s\n", USAGE_OPTSTR_HELP); printf( " --version %s\n", USAGE_OPTSTR_VERSION); printf(USAGE_MAN_TAIL("agetty(8)")); @@ -2080,6 +2086,15 @@ static void __attribute__((__noreturn__)) usage(void) exit(EXIT_SUCCESS); } +static void __attribute__((__noreturn__)) list_speeds(void) +{ + const struct Speedtab *sp; + + for (sp = speedtab; sp->speed; sp++) + printf("%10ld\n", sp->speed); + exit(EXIT_SUCCESS); +} + /* * Helper function reports errors to console or syslog. * Will be used by log_err() and log_warn() therefore |