/* stty -- change and print terminal line settings
Copyright (C) 1990-1999 Free Software Foundation, Inc.
- Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* Usage: stty [-ag] [-F device] [setting...]
*/
+//usage:#define stty_trivial_usage
+//usage: "[-a|g] [-F DEVICE] [SETTING]..."
+//usage:#define stty_full_usage "\n\n"
+//usage: "Without arguments, prints baud rate, line discipline,\n"
+//usage: "and deviations from stty sane\n"
+//usage: "\n -F DEVICE Open device instead of stdin"
+//usage: "\n -a Print all current settings in human-readable form"
+//usage: "\n -g Print in stty-readable form"
+//usage: "\n [SETTING] See manpage"
+
#include "libbb.h"
#ifndef _POSIX_VDISABLE
#if defined(VEOL2) && !defined(CEOL2)
# define CEOL2 _POSIX_VDISABLE
#endif
+/* glibc-2.12.1 uses only VSWTC name */
+#if defined(VSWTC) && !defined(VSWTCH)
+# define VSWTCH VSWTC
+#endif
/* ISC renamed swtch to susp for termios, but we'll accept either name */
#if defined(VSUSP) && !defined(VSWTCH)
# define VSWTCH VSUSP
# define CSTATUS Control('t')
#endif
+/* Save us from #ifdef forest plague */
+#ifndef BSDLY
+# define BSDLY 0
+#endif
+#ifndef CIBAUD
+# define CIBAUD 0
+#endif
+#ifndef CRDLY
+# define CRDLY 0
+#endif
+#ifndef CRTSCTS
+# define CRTSCTS 0
+#endif
+#ifndef ECHOCTL
+# define ECHOCTL 0
+#endif
+#ifndef ECHOKE
+# define ECHOKE 0
+#endif
+#ifndef ECHOPRT
+# define ECHOPRT 0
+#endif
+#ifndef FFDLY
+# define FFDLY 0
+#endif
+#ifndef IEXTEN
+# define IEXTEN 0
+#endif
+#ifndef IMAXBEL
+# define IMAXBEL 0
+#endif
+#ifndef IUCLC
+# define IUCLC 0
+#endif
+#ifndef IXANY
+# define IXANY 0
+#endif
+#ifndef NLDLY
+# define NLDLY 0
+#endif
+#ifndef OCRNL
+# define OCRNL 0
+#endif
+#ifndef OFDEL
+# define OFDEL 0
+#endif
+#ifndef OFILL
+# define OFILL 0
+#endif
+#ifndef OLCUC
+# define OLCUC 0
+#endif
+#ifndef ONLCR
+# define ONLCR 0
+#endif
+#ifndef ONLRET
+# define ONLRET 0
+#endif
+#ifndef ONOCR
+# define ONOCR 0
+#endif
+#ifndef OXTABS
+# define OXTABS 0
+#endif
+#ifndef TABDLY
+# define TABDLY 0
+#endif
+#ifndef TAB1
+# define TAB1 0
+#endif
+#ifndef TAB2
+# define TAB2 0
+#endif
+#ifndef TOSTOP
+# define TOSTOP 0
+#endif
+#ifndef VDSUSP
+# define VDSUSP 0
+#endif
+#ifndef VEOL2
+# define VEOL2 0
+#endif
+#ifndef VFLUSHO
+# define VFLUSHO 0
+#endif
+#ifndef VLNEXT
+# define VLNEXT 0
+#endif
+#ifndef VREPRINT
+# define VREPRINT 0
+#endif
+#ifndef VSTATUS
+# define VSTATUS 0
+#endif
+#ifndef VSWTCH
+# define VSWTCH 0
+#endif
+#ifndef VTDLY
+# define VTDLY 0
+#endif
+#ifndef VWERASE
+# define VWERASE 0
+#endif
+#ifndef XCASE
+# define XCASE 0
+#endif
+#ifndef IUTF8
+# define IUTF8 0
+#endif
+
/* Which speeds to set */
enum speed_setting {
input_speed, output_speed, both_speeds
/* Which member(s) of 'struct termios' a mode uses */
enum {
- /* Do NOT change the order or values, as mode_type_flag()
- * depends on them */
control, input, output, local, combination
};
+static tcflag_t *get_ptr_to_tcflag(unsigned type, const struct termios *mode)
+{
+ static const uint8_t tcflag_offsets[] ALIGN1 = {
+ offsetof(struct termios, c_cflag), /* control */
+ offsetof(struct termios, c_iflag), /* input */
+ offsetof(struct termios, c_oflag), /* output */
+ offsetof(struct termios, c_lflag) /* local */
+ };
+ if (type <= local) {
+ return (tcflag_t*) (((char*)mode) + tcflag_offsets[type]);
+ }
+ return NULL;
+}
/* Flags for 'struct mode_info' */
#define SANE_SET 1 /* Set in 'sane' mode */
IDX_cbreak,
IDX_crt,
IDX_dec,
-#ifdef IXANY
+#if IXANY
IDX_decctlq,
#endif
-#if defined(TABDLY) || defined(OXTABS)
+#if TABDLY || OXTABS
IDX_tabs,
#endif
-#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
+#if XCASE && IUCLC && OLCUC
IDX_lcase,
IDX_LCASE,
#endif
MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
MI_ENTRY("crt", combination, OMIT, 0, 0 )
MI_ENTRY("dec", combination, OMIT, 0, 0 )
-#ifdef IXANY
+#if IXANY
MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
#endif
-#if defined(TABDLY) || defined(OXTABS)
+#if TABDLY || OXTABS
MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
#endif
-#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
+#if XCASE && IUCLC && OLCUC
MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
#endif
MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
-#ifdef CRTSCTS
+#if CRTSCTS
MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
#endif
MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
MI_ENTRY("ixon", input, REV, IXON, 0 )
MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
- MI_ENTRY("tandem", input, REV | OMIT, IXOFF, 0 )
-#ifdef IUCLC
+ MI_ENTRY("tandem", input, OMIT | REV, IXOFF, 0 )
+#if IUCLC
MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
#endif
-#ifdef IXANY
+#if IXANY
MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
#endif
-#ifdef IMAXBEL
+#if IMAXBEL
MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
#endif
+#if IUTF8
+ MI_ENTRY("iutf8", input, SANE_UNSET | REV, IUTF8, 0 )
+#endif
MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
-#ifdef OLCUC
+#if OLCUC
MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
#endif
-#ifdef OCRNL
+#if OCRNL
MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
#endif
-#ifdef ONLCR
+#if ONLCR
MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
#endif
-#ifdef ONOCR
+#if ONOCR
MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
#endif
-#ifdef ONLRET
+#if ONLRET
MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
#endif
-#ifdef OFILL
+#if OFILL
MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
#endif
-#ifdef OFDEL
+#if OFDEL
MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
#endif
-#ifdef NLDLY
+#if NLDLY
MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
#endif
-#ifdef CRDLY
+#if CRDLY
MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
#endif
-#ifdef TABDLY
+#if TABDLY
MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
+# if TAB2
MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
+# endif
+# if TAB1
MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
+# endif
MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
#else
-# ifdef OXTABS
+# if OXTABS
MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
# endif
#endif
-#ifdef BSDLY
+#if BSDLY
MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
#endif
-#ifdef VTDLY
+#if VTDLY
MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
#endif
-#ifdef FFDLY
+#if FFDLY
MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
#endif
MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
-#ifdef IEXTEN
+#if IEXTEN
MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
#endif
MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
- MI_ENTRY("crterase", local, REV | OMIT, ECHOE, 0 )
+ MI_ENTRY("crterase", local, OMIT | REV, ECHOE, 0 )
MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
-#ifdef XCASE
+#if XCASE
MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
#endif
-#ifdef TOSTOP
+#if TOSTOP
MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
#endif
-#ifdef ECHOPRT
+#if ECHOPRT
MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
- MI_ENTRY("prterase", local, REV | OMIT, ECHOPRT, 0 )
+ MI_ENTRY("prterase", local, OMIT | REV, ECHOPRT, 0 )
#endif
-#ifdef ECHOCTL
+#if ECHOCTL
MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
- MI_ENTRY("ctlecho", local, REV | OMIT, ECHOCTL, 0 )
+ MI_ENTRY("ctlecho", local, OMIT | REV, ECHOCTL, 0 )
#endif
-#ifdef ECHOKE
+#if ECHOKE
MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
- MI_ENTRY("crtkill", local, REV | OMIT, ECHOKE, 0 )
+ MI_ENTRY("crtkill", local, OMIT | REV, ECHOKE, 0 )
#endif
;
MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
MI_ENTRY("crt", combination, OMIT, 0, 0 )
MI_ENTRY("dec", combination, OMIT, 0, 0 )
-#ifdef IXANY
+#if IXANY
MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
#endif
-#if defined(TABDLY) || defined(OXTABS)
+#if TABDLY || OXTABS
MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
#endif
-#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
+#if XCASE && IUCLC && OLCUC
MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
#endif
MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
-#ifdef CRTSCTS
+#if CRTSCTS
MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
#endif
MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
MI_ENTRY("ixon", input, REV, IXON, 0 )
MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
- MI_ENTRY("tandem", input, REV | OMIT, IXOFF, 0 )
-#ifdef IUCLC
+ MI_ENTRY("tandem", input, OMIT | REV, IXOFF, 0 )
+#if IUCLC
MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
#endif
-#ifdef IXANY
+#if IXANY
MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
#endif
-#ifdef IMAXBEL
+#if IMAXBEL
MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
#endif
+#if IUTF8
+ MI_ENTRY("iutf8", input, SANE_UNSET | REV, IUTF8, 0 )
+#endif
MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
-#ifdef OLCUC
+#if OLCUC
MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
#endif
-#ifdef OCRNL
+#if OCRNL
MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
#endif
-#ifdef ONLCR
+#if ONLCR
MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
#endif
-#ifdef ONOCR
+#if ONOCR
MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
#endif
-#ifdef ONLRET
+#if ONLRET
MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
#endif
-#ifdef OFILL
+#if OFILL
MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
#endif
-#ifdef OFDEL
+#if OFDEL
MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
#endif
-#ifdef NLDLY
+#if NLDLY
MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
#endif
-#ifdef CRDLY
+#if CRDLY
MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
#endif
-#ifdef TABDLY
+#if TABDLY
MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
+# if TAB2
MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
+# endif
+# if TAB1
MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
+# endif
MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
#else
-# ifdef OXTABS
+# if OXTABS
MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
# endif
#endif
-#ifdef BSDLY
+#if BSDLY
MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
#endif
-#ifdef VTDLY
+#if VTDLY
MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
#endif
-#ifdef FFDLY
+#if FFDLY
MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
#endif
MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
-#ifdef IEXTEN
+#if IEXTEN
MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
#endif
MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
- MI_ENTRY("crterase", local, REV | OMIT, ECHOE, 0 )
+ MI_ENTRY("crterase", local, OMIT | REV, ECHOE, 0 )
MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
-#ifdef XCASE
+#if XCASE
MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
#endif
-#ifdef TOSTOP
+#if TOSTOP
MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
#endif
-#ifdef ECHOPRT
+#if ECHOPRT
MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
- MI_ENTRY("prterase", local, REV | OMIT, ECHOPRT, 0 )
+ MI_ENTRY("prterase", local, OMIT | REV, ECHOPRT, 0 )
#endif
-#ifdef ECHOCTL
+#if ECHOCTL
MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
- MI_ENTRY("ctlecho", local, REV | OMIT, ECHOCTL, 0 )
+ MI_ENTRY("ctlecho", local, OMIT | REV, ECHOCTL, 0 )
#endif
-#ifdef ECHOKE
+#if ECHOKE
MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
- MI_ENTRY("crtkill", local, REV | OMIT, ECHOKE, 0 )
+ MI_ENTRY("crtkill", local, OMIT | REV, ECHOKE, 0 )
#endif
};
CIDX_kill,
CIDX_eof,
CIDX_eol,
-#ifdef VEOL2
+#if VEOL2
CIDX_eol2,
#endif
-#ifdef VSWTCH
+#if VSWTCH
CIDX_swtch,
#endif
CIDX_start,
CIDX_stop,
CIDX_susp,
-#ifdef VDSUSP
+#if VDSUSP
CIDX_dsusp,
#endif
-#ifdef VREPRINT
+#if VREPRINT
CIDX_rprnt,
#endif
-#ifdef VWERASE
+#if VWERASE
CIDX_werase,
#endif
-#ifdef VLNEXT
+#if VLNEXT
CIDX_lnext,
#endif
-#ifdef VFLUSHO
+#if VFLUSHO
CIDX_flush,
#endif
-#ifdef VSTATUS
+#if VSTATUS
CIDX_status,
#endif
CIDX_min,
CI_ENTRY("kill", CKILL, VKILL )
CI_ENTRY("eof", CEOF, VEOF )
CI_ENTRY("eol", CEOL, VEOL )
-#ifdef VEOL2
+#if VEOL2
CI_ENTRY("eol2", CEOL2, VEOL2 )
#endif
-#ifdef VSWTCH
+#if VSWTCH
CI_ENTRY("swtch", CSWTCH, VSWTCH )
#endif
CI_ENTRY("start", CSTART, VSTART )
CI_ENTRY("stop", CSTOP, VSTOP )
CI_ENTRY("susp", CSUSP, VSUSP )
-#ifdef VDSUSP
+#if VDSUSP
CI_ENTRY("dsusp", CDSUSP, VDSUSP )
#endif
-#ifdef VREPRINT
+#if VREPRINT
CI_ENTRY("rprnt", CRPRNT, VREPRINT)
#endif
-#ifdef VWERASE
+#if VWERASE
CI_ENTRY("werase", CWERASE, VWERASE )
#endif
-#ifdef VLNEXT
+#if VLNEXT
CI_ENTRY("lnext", CLNEXT, VLNEXT )
#endif
-#ifdef VFLUSHO
+#if VFLUSHO
CI_ENTRY("flush", CFLUSHO, VFLUSHO )
#endif
-#ifdef VSTATUS
+#if VSTATUS
CI_ENTRY("status", CSTATUS, VSTATUS )
#endif
/* These must be last because of the display routines */
CI_ENTRY("kill", CKILL, VKILL )
CI_ENTRY("eof", CEOF, VEOF )
CI_ENTRY("eol", CEOL, VEOL )
-#ifdef VEOL2
+#if VEOL2
CI_ENTRY("eol2", CEOL2, VEOL2 )
#endif
-#ifdef VSWTCH
+#if VSWTCH
CI_ENTRY("swtch", CSWTCH, VSWTCH )
#endif
CI_ENTRY("start", CSTART, VSTART )
CI_ENTRY("stop", CSTOP, VSTOP )
CI_ENTRY("susp", CSUSP, VSUSP )
-#ifdef VDSUSP
+#if VDSUSP
CI_ENTRY("dsusp", CDSUSP, VDSUSP )
#endif
-#ifdef VREPRINT
+#if VREPRINT
CI_ENTRY("rprnt", CRPRNT, VREPRINT)
#endif
-#ifdef VWERASE
+#if VWERASE
CI_ENTRY("werase", CWERASE, VWERASE )
#endif
-#ifdef VLNEXT
+#if VLNEXT
CI_ENTRY("lnext", CLNEXT, VLNEXT )
#endif
-#ifdef VFLUSHO
+#if VFLUSHO
CI_ENTRY("flush", CFLUSHO, VFLUSHO )
#endif
-#ifdef VSTATUS
+#if VSTATUS
CI_ENTRY("status", CSTATUS, VSTATUS )
#endif
/* These must be last because of the display routines */
struct globals {
- const char *device_name; // = bb_msg_standard_input;
+ const char *device_name;
/* The width of the screen, for output wrapping */
- unsigned max_col; // = 80;
+ unsigned max_col;
/* Current position, to know when to wrap */
unsigned current_col;
char buf[10];
-};
+} FIX_ALIASING;
#define G (*(struct globals*)&bb_common_bufsiz1)
#define INIT_G() do { \
G.device_name = bb_msg_standard_input; \
G.max_col = 80; \
} while (0)
-
-/* Return a string that is the printable representation of character CH */
-/* Adapted from 'cat' by Torbjorn Granlund */
-static const char *visible(unsigned ch)
-{
- char *bpout = G.buf;
-
- if (ch == _POSIX_VDISABLE)
- return "<undef>";
-
- if (ch >= 128) {
- ch -= 128;
- *bpout++ = 'M';
- *bpout++ = '-';
- }
-
- if (ch < 32) {
- *bpout++ = '^';
- *bpout++ = ch + 64;
- } else if (ch < 127) {
- *bpout++ = ch;
- } else {
- *bpout++ = '^';
- *bpout++ = '?';
- }
-
- *bpout = '\0';
- return G.buf;
-}
-
-static tcflag_t *mode_type_flag(unsigned type, const struct termios *mode)
-{
- static const uint8_t tcflag_offsets[] ALIGN1 = {
- offsetof(struct termios, c_cflag), /* control */
- offsetof(struct termios, c_iflag), /* input */
- offsetof(struct termios, c_oflag), /* output */
- offsetof(struct termios, c_lflag) /* local */
- };
-
- if (type <= local) {
- return (tcflag_t*) (((char*)mode) + tcflag_offsets[type]);
- }
- return NULL;
-}
-
static void set_speed_or_die(enum speed_setting type, const char *arg,
struct termios *mode)
{
G.current_col = 0;
}
-static void set_window_size(const int rows, const int cols)
+static void newline(void)
+{
+ if (G.current_col != 0)
+ wrapf("\n");
+}
+
+#ifdef TIOCGWINSZ
+static void set_window_size(int rows, int cols)
{
struct winsize win = { 0, 0, 0, 0 };
bail:
perror_on_device("%s");
}
+#endif
-static void display_window_size(const int fancy)
+static void display_window_size(int fancy)
{
const char *fmt_str = "%s\0%s: no size information for this device";
unsigned width, height;
perror_on_device(fmt_str);
}
} else {
- wrapf(fancy ? "rows %d; columns %d;" : "%d %d\n",
+ wrapf(fancy ? "rows %u; columns %u;" : "%u %u\n",
height, width);
}
}
static void display_speed(const struct termios *mode, int fancy)
{
- //01234567 8 9
+ //____________________ 01234567 8 9
const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;";
unsigned long ispeed, ospeed;
- ospeed = ispeed = cfgetispeed(mode);
- if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) {
+ ispeed = cfgetispeed(mode);
+ ospeed = cfgetospeed(mode);
+ if (ispeed == 0 || ispeed == ospeed) {
ispeed = ospeed; /* in case ispeed was 0 */
- //0123 4 5 6 7 8 9
+ //________ 0123 4 5 6 7 8 9
fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;";
}
if (fancy) fmt_str += 9;
wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed));
}
-static void do_display(const struct termios *mode, const int all)
+static void do_display(const struct termios *mode, int all)
{
int i;
tcflag_t *bitsp;
display_speed(mode, 1);
if (all)
display_window_size(1);
-#ifdef HAVE_C_LINE
- wrapf("line = %d;\n", mode->c_line);
+#ifdef __linux__
+ wrapf("line = %u;\n", mode->c_line);
#else
- wrapf("\n");
+ newline();
#endif
for (i = 0; i != CIDX_min; ++i) {
+ char ch;
/* If swtch is the same as susp, don't print both */
#if VSWTCH == VSUSP
if (i == CIDX_swtch)
#endif
/* If eof uses the same slot as min, only print whichever applies */
#if VEOF == VMIN
- if ((mode->c_lflag & ICANON) == 0
+ if (!(mode->c_lflag & ICANON)
&& (i == CIDX_eof || i == CIDX_eol)
) {
continue;
}
#endif
- wrapf("%s = %s;", nth_string(control_name, i),
- visible(mode->c_cc[control_info[i].offset]));
+ ch = mode->c_cc[control_info[i].offset];
+ if (ch == _POSIX_VDISABLE)
+ strcpy(G.buf, "<undef>");
+ else
+ visible(ch, G.buf, 0);
+ wrapf("%s = %s;", nth_string(control_name, i), G.buf);
}
#if VEOF == VMIN
if ((mode->c_lflag & ICANON) == 0)
#endif
- wrapf("min = %d; time = %d;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
- if (G.current_col) wrapf("\n");
+ wrapf("min = %u; time = %u;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
+ newline();
for (i = 0; i < NUM_mode_info; ++i) {
if (mode_info[i].flags & OMIT)
continue;
if (mode_info[i].type != prev_type) {
- /* wrapf("\n"); */
- if (G.current_col) wrapf("\n");
+ newline();
prev_type = mode_info[i].type;
}
- bitsp = mode_type_flag(mode_info[i].type, mode);
+ bitsp = get_ptr_to_tcflag(mode_info[i].type, mode);
mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits;
if ((*bitsp & mask) == mode_info[i].bits) {
if (all || (mode_info[i].flags & SANE_UNSET))
}
}
}
- if (G.current_col) wrapf("\n");
+ newline();
}
static void sane_mode(struct termios *mode)
{
int i;
- tcflag_t *bitsp;
for (i = 0; i < NUM_control_info; ++i) {
#if VMIN == VEOF
}
for (i = 0; i < NUM_mode_info; ++i) {
+ tcflag_t val;
+ tcflag_t *bitsp = get_ptr_to_tcflag(mode_info[i].type, mode);
+
+ if (!bitsp)
+ continue;
+ val = *bitsp & ~((unsigned long)mode_info[i].mask);
if (mode_info[i].flags & SANE_SET) {
- bitsp = mode_type_flag(mode_info[i].type, mode);
- *bitsp = (*bitsp & ~((unsigned long)mode_info[i].mask))
- | mode_info[i].bits;
- } else if (mode_info[i].flags & SANE_UNSET) {
- bitsp = mode_type_flag(mode_info[i].type, mode);
- *bitsp = *bitsp & ~((unsigned long)mode_info[i].mask)
- & ~mode_info[i].bits;
+ *bitsp = val | mode_info[i].bits;
+ } else
+ if (mode_info[i].flags & SANE_UNSET) {
+ *bitsp = val & ~mode_info[i].bits;
}
}
}
-/* Save set_mode from #ifdef forest plague */
-#ifndef ONLCR
-#define ONLCR 0
-#endif
-#ifndef OCRNL
-#define OCRNL 0
-#endif
-#ifndef ONLRET
-#define ONLRET 0
-#endif
-#ifndef XCASE
-#define XCASE 0
-#endif
-#ifndef IXANY
-#define IXANY 0
-#endif
-#ifndef TABDLY
-#define TABDLY 0
-#endif
-#ifndef OXTABS
-#define OXTABS 0
-#endif
-#ifndef IUCLC
-#define IUCLC 0
-#endif
-#ifndef OLCUC
-#define OLCUC 0
-#endif
-#ifndef ECHOCTL
-#define ECHOCTL 0
-#endif
-#ifndef ECHOKE
-#define ECHOKE 0
-#endif
-
static void set_mode(const struct mode_info *info, int reversed,
struct termios *mode)
{
tcflag_t *bitsp;
- bitsp = mode_type_flag(info->type, mode);
+ bitsp = get_ptr_to_tcflag(info->type, mode);
if (bitsp) {
+ tcflag_t val = *bitsp & ~info->mask;
if (reversed)
- *bitsp = *bitsp & ~info->mask & ~info->bits;
+ *bitsp = val & ~info->bits;
else
- *bitsp = (*bitsp & ~info->mask) | info->bits;
+ *bitsp = val | info->bits;
return;
}
- /* Combination mode */
+ /* !bitsp - it's a "combination" mode */
if (info == &mode_info[IDX_evenp] || info == &mode_info[IDX_parity]) {
if (reversed)
mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
else
- mode->c_cflag = (mode->c_cflag & ~PARODD & ~CSIZE) | PARENB | CS7;
+ mode->c_cflag = (mode->c_cflag & ~PARODD & ~CSIZE) | PARENB | CS7;
} else if (info == &mode_info[IDX_oddp]) {
if (reversed)
mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
else
- mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARODD | PARENB;
+ mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARODD | PARENB;
} else if (info == &mode_info[IDX_nl]) {
if (reversed) {
mode->c_iflag = (mode->c_iflag | ICRNL) & ~INLCR & ~IGNCR;
- mode->c_oflag = (mode->c_oflag | ONLCR) & ~OCRNL & ~ONLRET;
+ mode->c_oflag = (mode->c_oflag | ONLCR) & ~OCRNL & ~ONLRET;
} else {
mode->c_iflag = mode->c_iflag & ~ICRNL;
if (ONLCR) mode->c_oflag = mode->c_oflag & ~ONLCR;
mode->c_cc[VTIME] = 0;
}
}
- else if (IXANY && info == &mode_info[IDX_decctlq]) {
+#if IXANY
+ else if (info == &mode_info[IDX_decctlq]) {
if (reversed)
mode->c_iflag |= IXANY;
else
mode->c_iflag &= ~IXANY;
}
- else if (TABDLY && info == &mode_info[IDX_tabs]) {
+#endif
+#if TABDLY
+ else if (info == &mode_info[IDX_tabs]) {
if (reversed)
mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB3;
else
mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB0;
}
- else if (OXTABS && info == &mode_info[IDX_tabs]) {
+#endif
+#if OXTABS
+ else if (info == &mode_info[IDX_tabs]) {
if (reversed)
mode->c_oflag |= OXTABS;
else
mode->c_oflag &= ~OXTABS;
- } else
- if (XCASE && IUCLC && OLCUC
- && (info == &mode_info[IDX_lcase] || info == &mode_info[IDX_LCASE])
- ) {
+ }
+#endif
+#if XCASE && IUCLC && OLCUC
+ else if (info==&mode_info[IDX_lcase] || info==&mode_info[IDX_LCASE]) {
if (reversed) {
mode->c_lflag &= ~XCASE;
mode->c_iflag &= ~IUCLC;
mode->c_iflag |= IUCLC;
mode->c_oflag |= OLCUC;
}
- } else if (info == &mode_info[IDX_crt]) {
+ }
+#endif
+ else if (info == &mode_info[IDX_crt]) {
mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
} else if (info == &mode_info[IDX_dec]) {
mode->c_cc[VINTR] = 3; /* ^C */
value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
else if (arg[0] == '\0' || arg[1] == '\0')
value = arg[0];
- else if (!strcmp(arg, "^-") || !strcmp(arg, "undef"))
+ else if (strcmp(arg, "^-") == 0 || strcmp(arg, "undef") == 0)
value = _POSIX_VDISABLE;
else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */
value = arg[1] & 0x1f; /* Non-letters get weird results */
int stty_main(int argc UNUSED_PARAM, char **argv)
{
struct termios mode;
- void (*output_func)(const struct termios *, const int);
+ void (*output_func)(const struct termios *, int);
const char *file_name = NULL;
int display_all = 0;
int stty_state;
}
switch (param) {
-#ifdef HAVE_C_LINE
+#ifdef __linux__
case param_line:
# ifndef TIOCGWINSZ
xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
/* Specifying both -a and -g is an error */
if ((stty_state & (STTY_verbose_output | STTY_recoverable_output)) ==
- (STTY_verbose_output | STTY_recoverable_output))
- bb_error_msg_and_die("verbose and stty-readable output styles are mutually exclusive");
+ (STTY_verbose_output | STTY_recoverable_output)
+ ) {
+ bb_error_msg_and_die("-a and -g are mutually exclusive");
+ }
/* Specifying -a or -g with non-options is an error */
- if (!(stty_state & STTY_noargs) &&
- (stty_state & (STTY_verbose_output | STTY_recoverable_output)))
- bb_error_msg_and_die("modes may not be set when specifying an output style");
+ if ((stty_state & (STTY_verbose_output | STTY_recoverable_output))
+ && !(stty_state & STTY_noargs)
+ ) {
+ bb_error_msg_and_die("modes may not be set when -a or -g is used");
+ }
/* Now it is safe to start doing things */
if (file_name) {
}
switch (param) {
-#ifdef HAVE_C_LINE
+#ifdef __linux__
case param_line:
mode.c_line = xatoul_sfx(argnext, stty_suffixes);
stty_state |= STTY_require_set_attr;
#endif
#ifdef TIOCGWINSZ
case param_cols:
+ case param_columns:
set_window_size(-1, xatoul_sfx(argnext, stty_suffixes));
break;
case param_size:
perror_on_device_and_die("%s");
if (memcmp(&mode, &new_mode, sizeof(mode)) != 0) {
-#ifdef CIBAUD
+/*
+ * I think the below chunk is not necessary on Linux.
+ * If you are deleting it, also delete STTY_speed_was_set bit -
+ * it is only ever checked here.
+ */
+#if 0 /* was "if CIBAUD" */
/* SunOS 4.1.3 (at least) has the problem that after this sequence,
tcgetattr (&m1); tcsetattr (&m1); tcgetattr (&m2);
sometimes (m1 != m2). The only difference is in the four bits
projects / platform / upstream / busybox.git / blobdiff