[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /* stty -- change and print terminal line settings
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| 3 | Copyright (C) 1990-1999 Free Software Foundation, Inc.
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| 4 |
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[2725] | 5 | Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[821] | 6 | */
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| 7 | /* Usage: stty [-ag] [-F device] [setting...]
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| 8 |
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| 9 | Options:
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| 10 | -a Write all current settings to stdout in human-readable form.
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| 11 | -g Write all current settings to stdout in stty-readable form.
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| 12 | -F Open and use the specified device instead of stdin
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| 13 |
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| 14 | If no args are given, write to stdout the baud rate and settings that
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| 15 | have been changed from their defaults. Mode reading and changes
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| 16 | are done on the specified device, or stdin if none was specified.
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| 17 |
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| 18 | David MacKenzie <djm@gnu.ai.mit.edu>
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| 19 |
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| 20 | Special for busybox ported by Vladimir Oleynik <dzo@simtreas.ru> 2001
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| 21 |
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| 22 | */
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| 23 |
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[3232] | 24 | //usage:#define stty_trivial_usage
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| 25 | //usage: "[-a|g] [-F DEVICE] [SETTING]..."
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| 26 | //usage:#define stty_full_usage "\n\n"
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| 27 | //usage: "Without arguments, prints baud rate, line discipline,\n"
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| 28 | //usage: "and deviations from stty sane\n"
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| 29 | //usage: "\n -F DEVICE Open device instead of stdin"
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| 30 | //usage: "\n -a Print all current settings in human-readable form"
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| 31 | //usage: "\n -g Print in stty-readable form"
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| 32 | //usage: "\n [SETTING] See manpage"
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| 33 |
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[1765] | 34 | #include "libbb.h"
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[821] | 35 |
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| 36 | #ifndef _POSIX_VDISABLE
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| 37 | # define _POSIX_VDISABLE ((unsigned char) 0)
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| 38 | #endif
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| 39 |
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| 40 | #define Control(c) ((c) & 0x1f)
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[1765] | 41 | /* Canonical values for control characters */
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[821] | 42 | #ifndef CINTR
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[1765] | 43 | # define CINTR Control('c')
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[821] | 44 | #endif
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| 45 | #ifndef CQUIT
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| 46 | # define CQUIT 28
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| 47 | #endif
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| 48 | #ifndef CERASE
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| 49 | # define CERASE 127
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| 50 | #endif
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| 51 | #ifndef CKILL
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[1765] | 52 | # define CKILL Control('u')
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[821] | 53 | #endif
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| 54 | #ifndef CEOF
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[1765] | 55 | # define CEOF Control('d')
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[821] | 56 | #endif
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| 57 | #ifndef CEOL
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| 58 | # define CEOL _POSIX_VDISABLE
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| 59 | #endif
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| 60 | #ifndef CSTART
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[1765] | 61 | # define CSTART Control('q')
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[821] | 62 | #endif
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| 63 | #ifndef CSTOP
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[1765] | 64 | # define CSTOP Control('s')
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[821] | 65 | #endif
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| 66 | #ifndef CSUSP
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[1765] | 67 | # define CSUSP Control('z')
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[821] | 68 | #endif
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| 69 | #if defined(VEOL2) && !defined(CEOL2)
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| 70 | # define CEOL2 _POSIX_VDISABLE
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| 71 | #endif
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[3232] | 72 | /* glibc-2.12.1 uses only VSWTC name */
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| 73 | #if defined(VSWTC) && !defined(VSWTCH)
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| 74 | # define VSWTCH VSWTC
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| 75 | #endif
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[1765] | 76 | /* ISC renamed swtch to susp for termios, but we'll accept either name */
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[821] | 77 | #if defined(VSUSP) && !defined(VSWTCH)
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| 78 | # define VSWTCH VSUSP
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| 79 | # define CSWTCH CSUSP
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| 80 | #endif
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| 81 | #if defined(VSWTCH) && !defined(CSWTCH)
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| 82 | # define CSWTCH _POSIX_VDISABLE
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| 83 | #endif
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| 84 |
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[1765] | 85 | /* SunOS 5.3 loses (^Z doesn't work) if 'swtch' is the same as 'susp'.
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| 86 | So the default is to disable 'swtch.' */
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| 87 | #if defined(__sparc__) && defined(__svr4__)
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[821] | 88 | # undef CSWTCH
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| 89 | # define CSWTCH _POSIX_VDISABLE
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| 90 | #endif
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| 91 |
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[1765] | 92 | #if defined(VWERSE) && !defined(VWERASE) /* AIX-3.2.5 */
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[821] | 93 | # define VWERASE VWERSE
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| 94 | #endif
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[1765] | 95 | #if defined(VDSUSP) && !defined(CDSUSP)
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| 96 | # define CDSUSP Control('y')
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[821] | 97 | #endif
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| 98 | #if !defined(VREPRINT) && defined(VRPRNT) /* Irix 4.0.5 */
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| 99 | # define VREPRINT VRPRNT
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| 100 | #endif
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| 101 | #if defined(VREPRINT) && !defined(CRPRNT)
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[1765] | 102 | # define CRPRNT Control('r')
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[821] | 103 | #endif
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| 104 | #if defined(VWERASE) && !defined(CWERASE)
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[1765] | 105 | # define CWERASE Control('w')
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[821] | 106 | #endif
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| 107 | #if defined(VLNEXT) && !defined(CLNEXT)
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[1765] | 108 | # define CLNEXT Control('v')
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[821] | 109 | #endif
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| 110 | #if defined(VDISCARD) && !defined(VFLUSHO)
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| 111 | # define VFLUSHO VDISCARD
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| 112 | #endif
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| 113 | #if defined(VFLUSH) && !defined(VFLUSHO) /* Ultrix 4.2 */
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| 114 | # define VFLUSHO VFLUSH
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| 115 | #endif
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| 116 | #if defined(CTLECH) && !defined(ECHOCTL) /* Ultrix 4.3 */
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| 117 | # define ECHOCTL CTLECH
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| 118 | #endif
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| 119 | #if defined(TCTLECH) && !defined(ECHOCTL) /* Ultrix 4.2 */
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| 120 | # define ECHOCTL TCTLECH
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| 121 | #endif
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| 122 | #if defined(CRTKIL) && !defined(ECHOKE) /* Ultrix 4.2 and 4.3 */
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| 123 | # define ECHOKE CRTKIL
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| 124 | #endif
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| 125 | #if defined(VFLUSHO) && !defined(CFLUSHO)
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[1765] | 126 | # define CFLUSHO Control('o')
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[821] | 127 | #endif
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| 128 | #if defined(VSTATUS) && !defined(CSTATUS)
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[1765] | 129 | # define CSTATUS Control('t')
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[821] | 130 | #endif
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| 131 |
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[2725] | 132 | /* Save us from #ifdef forest plague */
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| 133 | #ifndef BSDLY
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| 134 | # define BSDLY 0
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| 135 | #endif
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| 136 | #ifndef CIBAUD
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| 137 | # define CIBAUD 0
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| 138 | #endif
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| 139 | #ifndef CRDLY
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| 140 | # define CRDLY 0
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| 141 | #endif
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| 142 | #ifndef CRTSCTS
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| 143 | # define CRTSCTS 0
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| 144 | #endif
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| 145 | #ifndef ECHOCTL
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| 146 | # define ECHOCTL 0
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| 147 | #endif
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| 148 | #ifndef ECHOKE
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| 149 | # define ECHOKE 0
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| 150 | #endif
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| 151 | #ifndef ECHOPRT
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| 152 | # define ECHOPRT 0
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| 153 | #endif
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| 154 | #ifndef FFDLY
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| 155 | # define FFDLY 0
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| 156 | #endif
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| 157 | #ifndef IEXTEN
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| 158 | # define IEXTEN 0
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| 159 | #endif
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| 160 | #ifndef IMAXBEL
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| 161 | # define IMAXBEL 0
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| 162 | #endif
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| 163 | #ifndef IUCLC
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| 164 | # define IUCLC 0
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| 165 | #endif
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| 166 | #ifndef IXANY
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| 167 | # define IXANY 0
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| 168 | #endif
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| 169 | #ifndef NLDLY
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| 170 | # define NLDLY 0
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| 171 | #endif
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| 172 | #ifndef OCRNL
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| 173 | # define OCRNL 0
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| 174 | #endif
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| 175 | #ifndef OFDEL
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| 176 | # define OFDEL 0
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| 177 | #endif
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| 178 | #ifndef OFILL
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| 179 | # define OFILL 0
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| 180 | #endif
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| 181 | #ifndef OLCUC
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| 182 | # define OLCUC 0
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| 183 | #endif
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| 184 | #ifndef ONLCR
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| 185 | # define ONLCR 0
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| 186 | #endif
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| 187 | #ifndef ONLRET
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| 188 | # define ONLRET 0
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| 189 | #endif
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| 190 | #ifndef ONOCR
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| 191 | # define ONOCR 0
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| 192 | #endif
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| 193 | #ifndef OXTABS
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| 194 | # define OXTABS 0
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| 195 | #endif
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| 196 | #ifndef TABDLY
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| 197 | # define TABDLY 0
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| 198 | #endif
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| 199 | #ifndef TAB1
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| 200 | # define TAB1 0
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| 201 | #endif
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| 202 | #ifndef TAB2
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| 203 | # define TAB2 0
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| 204 | #endif
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| 205 | #ifndef TOSTOP
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| 206 | # define TOSTOP 0
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| 207 | #endif
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| 208 | #ifndef VDSUSP
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| 209 | # define VDSUSP 0
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| 210 | #endif
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| 211 | #ifndef VEOL2
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| 212 | # define VEOL2 0
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| 213 | #endif
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| 214 | #ifndef VFLUSHO
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| 215 | # define VFLUSHO 0
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| 216 | #endif
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| 217 | #ifndef VLNEXT
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| 218 | # define VLNEXT 0
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| 219 | #endif
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| 220 | #ifndef VREPRINT
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| 221 | # define VREPRINT 0
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| 222 | #endif
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| 223 | #ifndef VSTATUS
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| 224 | # define VSTATUS 0
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| 225 | #endif
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| 226 | #ifndef VSWTCH
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| 227 | # define VSWTCH 0
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| 228 | #endif
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| 229 | #ifndef VTDLY
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| 230 | # define VTDLY 0
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| 231 | #endif
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| 232 | #ifndef VWERASE
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| 233 | # define VWERASE 0
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| 234 | #endif
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| 235 | #ifndef XCASE
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| 236 | # define XCASE 0
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| 237 | #endif
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[3232] | 238 | #ifndef IUTF8
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| 239 | # define IUTF8 0
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| 240 | #endif
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[2725] | 241 |
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[1765] | 242 | /* Which speeds to set */
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[821] | 243 | enum speed_setting {
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| 244 | input_speed, output_speed, both_speeds
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| 245 | };
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| 246 |
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[1765] | 247 | /* Which member(s) of 'struct termios' a mode uses */
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| 248 | enum {
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[821] | 249 | /* Do NOT change the order or values, as mode_type_flag()
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[1765] | 250 | * depends on them */
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[821] | 251 | control, input, output, local, combination
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| 252 | };
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| 253 |
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[1765] | 254 | /* Flags for 'struct mode_info' */
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| 255 | #define SANE_SET 1 /* Set in 'sane' mode */
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| 256 | #define SANE_UNSET 2 /* Unset in 'sane' mode */
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| 257 | #define REV 4 /* Can be turned off by prepending '-' */
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| 258 | #define OMIT 8 /* Don't display value */
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[821] | 259 |
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[2725] | 260 |
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| 261 | /* Each mode.
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| 262 | * This structure should be kept as small as humanly possible.
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| 263 | */
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[821] | 264 | struct mode_info {
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[2725] | 265 | const uint8_t type; /* Which structure element to change */
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| 266 | const uint8_t flags; /* Setting and display options */
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| 267 | /* only these values are ever used, so... */
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| 268 | #if (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x100
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| 269 | const uint8_t mask;
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| 270 | #elif (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x10000
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| 271 | const uint16_t mask;
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| 272 | #else
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[1765] | 273 | const tcflag_t mask; /* Other bits to turn off for this mode */
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[2725] | 274 | #endif
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| 275 | /* was using short here, but ppc32 was unhappy */
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[1765] | 276 | const tcflag_t bits; /* Bits to set for this mode */
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[821] | 277 | };
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| 278 |
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[2725] | 279 | enum {
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| 280 | /* Must match mode_name[] and mode_info[] order! */
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| 281 | IDX_evenp = 0,
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| 282 | IDX_parity,
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| 283 | IDX_oddp,
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| 284 | IDX_nl,
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| 285 | IDX_ek,
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| 286 | IDX_sane,
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| 287 | IDX_cooked,
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| 288 | IDX_raw,
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| 289 | IDX_pass8,
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| 290 | IDX_litout,
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| 291 | IDX_cbreak,
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| 292 | IDX_crt,
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| 293 | IDX_dec,
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| 294 | #if IXANY
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| 295 | IDX_decctlq,
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| 296 | #endif
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| 297 | #if TABDLY || OXTABS
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| 298 | IDX_tabs,
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| 299 | #endif
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| 300 | #if XCASE && IUCLC && OLCUC
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| 301 | IDX_lcase,
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| 302 | IDX_LCASE,
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| 303 | #endif
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| 304 | };
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[1765] | 305 |
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[2725] | 306 | #define MI_ENTRY(N,T,F,B,M) N "\0"
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[821] | 307 |
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[2725] | 308 | /* Mode names given on command line */
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| 309 | static const char mode_name[] =
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| 310 | MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
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| 311 | MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
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| 312 | MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
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| 313 | MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
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| 314 | MI_ENTRY("ek", combination, OMIT, 0, 0 )
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| 315 | MI_ENTRY("sane", combination, OMIT, 0, 0 )
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| 316 | MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
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| 317 | MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
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| 318 | MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
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| 319 | MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
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| 320 | MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
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| 321 | MI_ENTRY("crt", combination, OMIT, 0, 0 )
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| 322 | MI_ENTRY("dec", combination, OMIT, 0, 0 )
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| 323 | #if IXANY
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| 324 | MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
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[821] | 325 | #endif
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[2725] | 326 | #if TABDLY || OXTABS
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| 327 | MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
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[821] | 328 | #endif
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[2725] | 329 | #if XCASE && IUCLC && OLCUC
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| 330 | MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
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| 331 | MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
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[821] | 332 | #endif
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[2725] | 333 | MI_ENTRY("parenb", control, REV, PARENB, 0 )
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| 334 | MI_ENTRY("parodd", control, REV, PARODD, 0 )
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| 335 | MI_ENTRY("cs5", control, 0, CS5, CSIZE)
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| 336 | MI_ENTRY("cs6", control, 0, CS6, CSIZE)
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| 337 | MI_ENTRY("cs7", control, 0, CS7, CSIZE)
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| 338 | MI_ENTRY("cs8", control, 0, CS8, CSIZE)
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| 339 | MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
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| 340 | MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
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| 341 | MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
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| 342 | MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
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| 343 | MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
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| 344 | #if CRTSCTS
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| 345 | MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
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[821] | 346 | #endif
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[2725] | 347 | MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
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| 348 | MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
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| 349 | MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
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| 350 | MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
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| 351 | MI_ENTRY("inpck", input, REV, INPCK, 0 )
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| 352 | MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
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| 353 | MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
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| 354 | MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
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| 355 | MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
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| 356 | MI_ENTRY("ixon", input, REV, IXON, 0 )
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| 357 | MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
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[3232] | 358 | MI_ENTRY("tandem", input, OMIT | REV, IXOFF, 0 )
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[2725] | 359 | #if IUCLC
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| 360 | MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
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[821] | 361 | #endif
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[2725] | 362 | #if IXANY
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| 363 | MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
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[821] | 364 | #endif
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[2725] | 365 | #if IMAXBEL
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| 366 | MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
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[821] | 367 | #endif
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[3232] | 368 | #if IUTF8
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| 369 | MI_ENTRY("iutf8", input, SANE_UNSET | REV, IUTF8, 0 )
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| 370 | #endif
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[2725] | 371 | MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
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| 372 | #if OLCUC
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| 373 | MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
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[821] | 374 | #endif
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[2725] | 375 | #if OCRNL
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| 376 | MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
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[821] | 377 | #endif
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[2725] | 378 | #if ONLCR
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| 379 | MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
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[821] | 380 | #endif
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[2725] | 381 | #if ONOCR
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| 382 | MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
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[821] | 383 | #endif
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[2725] | 384 | #if ONLRET
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| 385 | MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
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[821] | 386 | #endif
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[2725] | 387 | #if OFILL
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| 388 | MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
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[821] | 389 | #endif
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[2725] | 390 | #if OFDEL
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| 391 | MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
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| 392 | #endif
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| 393 | #if NLDLY
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| 394 | MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
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| 395 | MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
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| 396 | #endif
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| 397 | #if CRDLY
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| 398 | MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
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| 399 | MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
|
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| 400 | MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
|
---|
| 401 | MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
|
---|
| 402 | #endif
|
---|
[821] | 403 |
|
---|
[2725] | 404 | #if TABDLY
|
---|
| 405 | MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
|
---|
| 406 | # if TAB2
|
---|
| 407 | MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
|
---|
| 408 | # endif
|
---|
| 409 | # if TAB1
|
---|
| 410 | MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
|
---|
| 411 | # endif
|
---|
| 412 | MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
|
---|
[821] | 413 | #else
|
---|
[2725] | 414 | # if OXTABS
|
---|
| 415 | MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
|
---|
[821] | 416 | # endif
|
---|
| 417 | #endif
|
---|
| 418 |
|
---|
[2725] | 419 | #if BSDLY
|
---|
| 420 | MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
|
---|
| 421 | MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
|
---|
[821] | 422 | #endif
|
---|
[2725] | 423 | #if VTDLY
|
---|
| 424 | MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
|
---|
| 425 | MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
|
---|
[821] | 426 | #endif
|
---|
[2725] | 427 | #if FFDLY
|
---|
| 428 | MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
|
---|
| 429 | MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
|
---|
[821] | 430 | #endif
|
---|
[2725] | 431 | MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
|
---|
| 432 | MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
|
---|
| 433 | #if IEXTEN
|
---|
| 434 | MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
|
---|
[821] | 435 | #endif
|
---|
[2725] | 436 | MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
|
---|
| 437 | MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
|
---|
[3232] | 438 | MI_ENTRY("crterase", local, OMIT | REV, ECHOE, 0 )
|
---|
[2725] | 439 | MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
|
---|
| 440 | MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
|
---|
| 441 | MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
|
---|
| 442 | #if XCASE
|
---|
| 443 | MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
|
---|
[821] | 444 | #endif
|
---|
[2725] | 445 | #if TOSTOP
|
---|
| 446 | MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
|
---|
[821] | 447 | #endif
|
---|
[2725] | 448 | #if ECHOPRT
|
---|
| 449 | MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
|
---|
[3232] | 450 | MI_ENTRY("prterase", local, OMIT | REV, ECHOPRT, 0 )
|
---|
[821] | 451 | #endif
|
---|
[2725] | 452 | #if ECHOCTL
|
---|
| 453 | MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
|
---|
[3232] | 454 | MI_ENTRY("ctlecho", local, OMIT | REV, ECHOCTL, 0 )
|
---|
[821] | 455 | #endif
|
---|
[2725] | 456 | #if ECHOKE
|
---|
| 457 | MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
|
---|
[3232] | 458 | MI_ENTRY("crtkill", local, OMIT | REV, ECHOKE, 0 )
|
---|
[821] | 459 | #endif
|
---|
[2725] | 460 | ;
|
---|
| 461 |
|
---|
| 462 | #undef MI_ENTRY
|
---|
| 463 | #define MI_ENTRY(N,T,F,B,M) { T, F, M, B },
|
---|
| 464 |
|
---|
| 465 | static const struct mode_info mode_info[] = {
|
---|
| 466 | /* This should be verbatim cut-n-paste copy of the above MI_ENTRYs */
|
---|
| 467 | MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
|
---|
| 468 | MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
|
---|
| 469 | MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
|
---|
| 470 | MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
|
---|
| 471 | MI_ENTRY("ek", combination, OMIT, 0, 0 )
|
---|
| 472 | MI_ENTRY("sane", combination, OMIT, 0, 0 )
|
---|
| 473 | MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
|
---|
| 474 | MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
|
---|
| 475 | MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
|
---|
| 476 | MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
|
---|
| 477 | MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
|
---|
| 478 | MI_ENTRY("crt", combination, OMIT, 0, 0 )
|
---|
| 479 | MI_ENTRY("dec", combination, OMIT, 0, 0 )
|
---|
| 480 | #if IXANY
|
---|
| 481 | MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
|
---|
[821] | 482 | #endif
|
---|
[2725] | 483 | #if TABDLY || OXTABS
|
---|
| 484 | MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
|
---|
[821] | 485 | #endif
|
---|
[2725] | 486 | #if XCASE && IUCLC && OLCUC
|
---|
| 487 | MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
|
---|
| 488 | MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
|
---|
[821] | 489 | #endif
|
---|
[2725] | 490 | MI_ENTRY("parenb", control, REV, PARENB, 0 )
|
---|
| 491 | MI_ENTRY("parodd", control, REV, PARODD, 0 )
|
---|
| 492 | MI_ENTRY("cs5", control, 0, CS5, CSIZE)
|
---|
| 493 | MI_ENTRY("cs6", control, 0, CS6, CSIZE)
|
---|
| 494 | MI_ENTRY("cs7", control, 0, CS7, CSIZE)
|
---|
| 495 | MI_ENTRY("cs8", control, 0, CS8, CSIZE)
|
---|
| 496 | MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
|
---|
| 497 | MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
|
---|
| 498 | MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
|
---|
| 499 | MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
|
---|
| 500 | MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
|
---|
| 501 | #if CRTSCTS
|
---|
| 502 | MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
|
---|
| 503 | #endif
|
---|
| 504 | MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
|
---|
| 505 | MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
|
---|
| 506 | MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
|
---|
| 507 | MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
|
---|
| 508 | MI_ENTRY("inpck", input, REV, INPCK, 0 )
|
---|
| 509 | MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
|
---|
| 510 | MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
|
---|
| 511 | MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
|
---|
| 512 | MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
|
---|
| 513 | MI_ENTRY("ixon", input, REV, IXON, 0 )
|
---|
| 514 | MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
|
---|
[3232] | 515 | MI_ENTRY("tandem", input, OMIT | REV, IXOFF, 0 )
|
---|
[2725] | 516 | #if IUCLC
|
---|
| 517 | MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
|
---|
| 518 | #endif
|
---|
| 519 | #if IXANY
|
---|
| 520 | MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
|
---|
| 521 | #endif
|
---|
| 522 | #if IMAXBEL
|
---|
| 523 | MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
|
---|
| 524 | #endif
|
---|
[3232] | 525 | #if IUTF8
|
---|
| 526 | MI_ENTRY("iutf8", input, SANE_UNSET | REV, IUTF8, 0 )
|
---|
| 527 | #endif
|
---|
[2725] | 528 | MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
|
---|
| 529 | #if OLCUC
|
---|
| 530 | MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
|
---|
| 531 | #endif
|
---|
| 532 | #if OCRNL
|
---|
| 533 | MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
|
---|
| 534 | #endif
|
---|
| 535 | #if ONLCR
|
---|
| 536 | MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
|
---|
| 537 | #endif
|
---|
| 538 | #if ONOCR
|
---|
| 539 | MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
|
---|
| 540 | #endif
|
---|
| 541 | #if ONLRET
|
---|
| 542 | MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
|
---|
| 543 | #endif
|
---|
| 544 | #if OFILL
|
---|
| 545 | MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
|
---|
| 546 | #endif
|
---|
| 547 | #if OFDEL
|
---|
| 548 | MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
|
---|
| 549 | #endif
|
---|
| 550 | #if NLDLY
|
---|
| 551 | MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
|
---|
| 552 | MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
|
---|
| 553 | #endif
|
---|
| 554 | #if CRDLY
|
---|
| 555 | MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
|
---|
| 556 | MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
|
---|
| 557 | MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
|
---|
| 558 | MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
|
---|
| 559 | #endif
|
---|
| 560 |
|
---|
| 561 | #if TABDLY
|
---|
| 562 | MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
|
---|
| 563 | # if TAB2
|
---|
| 564 | MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
|
---|
| 565 | # endif
|
---|
| 566 | # if TAB1
|
---|
| 567 | MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
|
---|
| 568 | # endif
|
---|
| 569 | MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
|
---|
| 570 | #else
|
---|
| 571 | # if OXTABS
|
---|
| 572 | MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
|
---|
| 573 | # endif
|
---|
| 574 | #endif
|
---|
| 575 |
|
---|
| 576 | #if BSDLY
|
---|
| 577 | MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
|
---|
| 578 | MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
|
---|
| 579 | #endif
|
---|
| 580 | #if VTDLY
|
---|
| 581 | MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
|
---|
| 582 | MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
|
---|
| 583 | #endif
|
---|
| 584 | #if FFDLY
|
---|
| 585 | MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
|
---|
| 586 | MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
|
---|
| 587 | #endif
|
---|
| 588 | MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
|
---|
| 589 | MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
|
---|
| 590 | #if IEXTEN
|
---|
| 591 | MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
|
---|
| 592 | #endif
|
---|
| 593 | MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
|
---|
| 594 | MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
|
---|
[3232] | 595 | MI_ENTRY("crterase", local, OMIT | REV, ECHOE, 0 )
|
---|
[2725] | 596 | MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
|
---|
| 597 | MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
|
---|
| 598 | MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
|
---|
| 599 | #if XCASE
|
---|
| 600 | MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
|
---|
| 601 | #endif
|
---|
| 602 | #if TOSTOP
|
---|
| 603 | MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
|
---|
| 604 | #endif
|
---|
| 605 | #if ECHOPRT
|
---|
| 606 | MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
|
---|
[3232] | 607 | MI_ENTRY("prterase", local, OMIT | REV, ECHOPRT, 0 )
|
---|
[2725] | 608 | #endif
|
---|
| 609 | #if ECHOCTL
|
---|
| 610 | MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
|
---|
[3232] | 611 | MI_ENTRY("ctlecho", local, OMIT | REV, ECHOCTL, 0 )
|
---|
[2725] | 612 | #endif
|
---|
| 613 | #if ECHOKE
|
---|
| 614 | MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
|
---|
[3232] | 615 | MI_ENTRY("crtkill", local, OMIT | REV, ECHOKE, 0 )
|
---|
[2725] | 616 | #endif
|
---|
[821] | 617 | };
|
---|
| 618 |
|
---|
| 619 | enum {
|
---|
[1765] | 620 | NUM_mode_info = ARRAY_SIZE(mode_info)
|
---|
[821] | 621 | };
|
---|
| 622 |
|
---|
[2725] | 623 |
|
---|
| 624 | /* Control characters */
|
---|
[821] | 625 | struct control_info {
|
---|
[2725] | 626 | const uint8_t saneval; /* Value to set for 'stty sane' */
|
---|
| 627 | const uint8_t offset; /* Offset in c_cc */
|
---|
[821] | 628 | };
|
---|
| 629 |
|
---|
[2725] | 630 | enum {
|
---|
| 631 | /* Must match control_name[] and control_info[] order! */
|
---|
| 632 | CIDX_intr = 0,
|
---|
| 633 | CIDX_quit,
|
---|
| 634 | CIDX_erase,
|
---|
| 635 | CIDX_kill,
|
---|
| 636 | CIDX_eof,
|
---|
| 637 | CIDX_eol,
|
---|
| 638 | #if VEOL2
|
---|
| 639 | CIDX_eol2,
|
---|
| 640 | #endif
|
---|
| 641 | #if VSWTCH
|
---|
| 642 | CIDX_swtch,
|
---|
| 643 | #endif
|
---|
| 644 | CIDX_start,
|
---|
| 645 | CIDX_stop,
|
---|
| 646 | CIDX_susp,
|
---|
| 647 | #if VDSUSP
|
---|
| 648 | CIDX_dsusp,
|
---|
| 649 | #endif
|
---|
| 650 | #if VREPRINT
|
---|
| 651 | CIDX_rprnt,
|
---|
| 652 | #endif
|
---|
| 653 | #if VWERASE
|
---|
| 654 | CIDX_werase,
|
---|
| 655 | #endif
|
---|
| 656 | #if VLNEXT
|
---|
| 657 | CIDX_lnext,
|
---|
| 658 | #endif
|
---|
| 659 | #if VFLUSHO
|
---|
| 660 | CIDX_flush,
|
---|
| 661 | #endif
|
---|
| 662 | #if VSTATUS
|
---|
| 663 | CIDX_status,
|
---|
| 664 | #endif
|
---|
| 665 | CIDX_min,
|
---|
| 666 | CIDX_time,
|
---|
| 667 | };
|
---|
[821] | 668 |
|
---|
[2725] | 669 | #define CI_ENTRY(n,s,o) n "\0"
|
---|
| 670 |
|
---|
| 671 | /* Name given on command line */
|
---|
| 672 | static const char control_name[] =
|
---|
| 673 | CI_ENTRY("intr", CINTR, VINTR )
|
---|
| 674 | CI_ENTRY("quit", CQUIT, VQUIT )
|
---|
| 675 | CI_ENTRY("erase", CERASE, VERASE )
|
---|
| 676 | CI_ENTRY("kill", CKILL, VKILL )
|
---|
| 677 | CI_ENTRY("eof", CEOF, VEOF )
|
---|
| 678 | CI_ENTRY("eol", CEOL, VEOL )
|
---|
| 679 | #if VEOL2
|
---|
| 680 | CI_ENTRY("eol2", CEOL2, VEOL2 )
|
---|
| 681 | #endif
|
---|
| 682 | #if VSWTCH
|
---|
| 683 | CI_ENTRY("swtch", CSWTCH, VSWTCH )
|
---|
| 684 | #endif
|
---|
| 685 | CI_ENTRY("start", CSTART, VSTART )
|
---|
| 686 | CI_ENTRY("stop", CSTOP, VSTOP )
|
---|
| 687 | CI_ENTRY("susp", CSUSP, VSUSP )
|
---|
| 688 | #if VDSUSP
|
---|
| 689 | CI_ENTRY("dsusp", CDSUSP, VDSUSP )
|
---|
| 690 | #endif
|
---|
| 691 | #if VREPRINT
|
---|
| 692 | CI_ENTRY("rprnt", CRPRNT, VREPRINT)
|
---|
| 693 | #endif
|
---|
| 694 | #if VWERASE
|
---|
| 695 | CI_ENTRY("werase", CWERASE, VWERASE )
|
---|
| 696 | #endif
|
---|
| 697 | #if VLNEXT
|
---|
| 698 | CI_ENTRY("lnext", CLNEXT, VLNEXT )
|
---|
| 699 | #endif
|
---|
| 700 | #if VFLUSHO
|
---|
| 701 | CI_ENTRY("flush", CFLUSHO, VFLUSHO )
|
---|
| 702 | #endif
|
---|
| 703 | #if VSTATUS
|
---|
| 704 | CI_ENTRY("status", CSTATUS, VSTATUS )
|
---|
| 705 | #endif
|
---|
| 706 | /* These must be last because of the display routines */
|
---|
| 707 | CI_ENTRY("min", 1, VMIN )
|
---|
| 708 | CI_ENTRY("time", 0, VTIME )
|
---|
| 709 | ;
|
---|
| 710 |
|
---|
| 711 | #undef CI_ENTRY
|
---|
| 712 | #define CI_ENTRY(n,s,o) { s, o },
|
---|
| 713 |
|
---|
[1765] | 714 | static const struct control_info control_info[] = {
|
---|
[2725] | 715 | /* This should be verbatim cut-n-paste copy of the above CI_ENTRYs */
|
---|
| 716 | CI_ENTRY("intr", CINTR, VINTR )
|
---|
| 717 | CI_ENTRY("quit", CQUIT, VQUIT )
|
---|
| 718 | CI_ENTRY("erase", CERASE, VERASE )
|
---|
| 719 | CI_ENTRY("kill", CKILL, VKILL )
|
---|
| 720 | CI_ENTRY("eof", CEOF, VEOF )
|
---|
| 721 | CI_ENTRY("eol", CEOL, VEOL )
|
---|
| 722 | #if VEOL2
|
---|
| 723 | CI_ENTRY("eol2", CEOL2, VEOL2 )
|
---|
[821] | 724 | #endif
|
---|
[2725] | 725 | #if VSWTCH
|
---|
| 726 | CI_ENTRY("swtch", CSWTCH, VSWTCH )
|
---|
[821] | 727 | #endif
|
---|
[2725] | 728 | CI_ENTRY("start", CSTART, VSTART )
|
---|
| 729 | CI_ENTRY("stop", CSTOP, VSTOP )
|
---|
| 730 | CI_ENTRY("susp", CSUSP, VSUSP )
|
---|
| 731 | #if VDSUSP
|
---|
| 732 | CI_ENTRY("dsusp", CDSUSP, VDSUSP )
|
---|
[821] | 733 | #endif
|
---|
[2725] | 734 | #if VREPRINT
|
---|
| 735 | CI_ENTRY("rprnt", CRPRNT, VREPRINT)
|
---|
[821] | 736 | #endif
|
---|
[2725] | 737 | #if VWERASE
|
---|
| 738 | CI_ENTRY("werase", CWERASE, VWERASE )
|
---|
[821] | 739 | #endif
|
---|
[2725] | 740 | #if VLNEXT
|
---|
| 741 | CI_ENTRY("lnext", CLNEXT, VLNEXT )
|
---|
[821] | 742 | #endif
|
---|
[2725] | 743 | #if VFLUSHO
|
---|
| 744 | CI_ENTRY("flush", CFLUSHO, VFLUSHO )
|
---|
[821] | 745 | #endif
|
---|
[2725] | 746 | #if VSTATUS
|
---|
| 747 | CI_ENTRY("status", CSTATUS, VSTATUS )
|
---|
[821] | 748 | #endif
|
---|
[1765] | 749 | /* These must be last because of the display routines */
|
---|
[2725] | 750 | CI_ENTRY("min", 1, VMIN )
|
---|
| 751 | CI_ENTRY("time", 0, VTIME )
|
---|
[821] | 752 | };
|
---|
| 753 |
|
---|
| 754 | enum {
|
---|
[1765] | 755 | NUM_control_info = ARRAY_SIZE(control_info)
|
---|
[821] | 756 | };
|
---|
| 757 |
|
---|
| 758 |
|
---|
[1765] | 759 | struct globals {
|
---|
[2725] | 760 | const char *device_name;
|
---|
| 761 | /* The width of the screen, for output wrapping */
|
---|
| 762 | unsigned max_col;
|
---|
[1765] | 763 | /* Current position, to know when to wrap */
|
---|
| 764 | unsigned current_col;
|
---|
| 765 | char buf[10];
|
---|
[2725] | 766 | } FIX_ALIASING;
|
---|
[1765] | 767 | #define G (*(struct globals*)&bb_common_bufsiz1)
|
---|
[2725] | 768 | #define INIT_G() do { \
|
---|
| 769 | G.device_name = bb_msg_standard_input; \
|
---|
| 770 | G.max_col = 80; \
|
---|
| 771 | } while (0)
|
---|
[821] | 772 |
|
---|
| 773 |
|
---|
[1765] | 774 | /* Return a string that is the printable representation of character CH */
|
---|
| 775 | /* Adapted from 'cat' by Torbjorn Granlund */
|
---|
| 776 | static const char *visible(unsigned ch)
|
---|
[821] | 777 | {
|
---|
[1765] | 778 | char *bpout = G.buf;
|
---|
[821] | 779 |
|
---|
[1765] | 780 | if (ch == _POSIX_VDISABLE)
|
---|
| 781 | return "<undef>";
|
---|
[821] | 782 |
|
---|
[1765] | 783 | if (ch >= 128) {
|
---|
| 784 | ch -= 128;
|
---|
| 785 | *bpout++ = 'M';
|
---|
| 786 | *bpout++ = '-';
|
---|
[821] | 787 | }
|
---|
| 788 |
|
---|
[1765] | 789 | if (ch < 32) {
|
---|
| 790 | *bpout++ = '^';
|
---|
| 791 | *bpout++ = ch + 64;
|
---|
| 792 | } else if (ch < 127) {
|
---|
| 793 | *bpout++ = ch;
|
---|
[821] | 794 | } else {
|
---|
[1765] | 795 | *bpout++ = '^';
|
---|
| 796 | *bpout++ = '?';
|
---|
[821] | 797 | }
|
---|
| 798 |
|
---|
[1765] | 799 | *bpout = '\0';
|
---|
| 800 | return G.buf;
|
---|
[821] | 801 | }
|
---|
| 802 |
|
---|
[1765] | 803 | static tcflag_t *mode_type_flag(unsigned type, const struct termios *mode)
|
---|
[821] | 804 | {
|
---|
[2725] | 805 | static const uint8_t tcflag_offsets[] ALIGN1 = {
|
---|
[1765] | 806 | offsetof(struct termios, c_cflag), /* control */
|
---|
| 807 | offsetof(struct termios, c_iflag), /* input */
|
---|
| 808 | offsetof(struct termios, c_oflag), /* output */
|
---|
| 809 | offsetof(struct termios, c_lflag) /* local */
|
---|
| 810 | };
|
---|
[821] | 811 |
|
---|
[1765] | 812 | if (type <= local) {
|
---|
| 813 | return (tcflag_t*) (((char*)mode) + tcflag_offsets[type]);
|
---|
| 814 | }
|
---|
| 815 | return NULL;
|
---|
[821] | 816 | }
|
---|
| 817 |
|
---|
[2725] | 818 | static void set_speed_or_die(enum speed_setting type, const char *arg,
|
---|
| 819 | struct termios *mode)
|
---|
[821] | 820 | {
|
---|
| 821 | speed_t baud;
|
---|
| 822 |
|
---|
[1765] | 823 | baud = tty_value_to_baud(xatou(arg));
|
---|
[821] | 824 |
|
---|
| 825 | if (type != output_speed) { /* either input or both */
|
---|
| 826 | cfsetispeed(mode, baud);
|
---|
| 827 | }
|
---|
| 828 | if (type != input_speed) { /* either output or both */
|
---|
| 829 | cfsetospeed(mode, baud);
|
---|
| 830 | }
|
---|
| 831 | }
|
---|
| 832 |
|
---|
[2725] | 833 | static NORETURN void perror_on_device_and_die(const char *fmt)
|
---|
[1765] | 834 | {
|
---|
[2725] | 835 | bb_perror_msg_and_die(fmt, G.device_name);
|
---|
[1765] | 836 | }
|
---|
[821] | 837 |
|
---|
[1765] | 838 | static void perror_on_device(const char *fmt)
|
---|
[821] | 839 | {
|
---|
[2725] | 840 | bb_perror_msg(fmt, G.device_name);
|
---|
[1765] | 841 | }
|
---|
[821] | 842 |
|
---|
[1765] | 843 | /* Print format string MESSAGE and optional args.
|
---|
| 844 | Wrap to next line first if it won't fit.
|
---|
| 845 | Print a space first unless MESSAGE will start a new line */
|
---|
| 846 | static void wrapf(const char *message, ...)
|
---|
| 847 | {
|
---|
| 848 | char buf[128];
|
---|
| 849 | va_list args;
|
---|
[2725] | 850 | unsigned buflen;
|
---|
[1765] | 851 |
|
---|
| 852 | va_start(args, message);
|
---|
| 853 | buflen = vsnprintf(buf, sizeof(buf), message, args);
|
---|
| 854 | va_end(args);
|
---|
| 855 | /* We seem to be called only with suitable lengths, but check if
|
---|
| 856 | somebody failed to adhere to this assumption just to be sure. */
|
---|
| 857 | if (!buflen || buflen >= sizeof(buf)) return;
|
---|
| 858 |
|
---|
| 859 | if (G.current_col > 0) {
|
---|
| 860 | G.current_col++;
|
---|
| 861 | if (buf[0] != '\n') {
|
---|
[2725] | 862 | if (G.current_col + buflen >= G.max_col) {
|
---|
| 863 | bb_putchar('\n');
|
---|
[1765] | 864 | G.current_col = 0;
|
---|
| 865 | } else
|
---|
[2725] | 866 | bb_putchar(' ');
|
---|
[1765] | 867 | }
|
---|
| 868 | }
|
---|
| 869 | fputs(buf, stdout);
|
---|
| 870 | G.current_col += buflen;
|
---|
| 871 | if (buf[buflen-1] == '\n')
|
---|
| 872 | G.current_col = 0;
|
---|
[821] | 873 | }
|
---|
| 874 |
|
---|
[2725] | 875 | static void newline(void)
|
---|
[821] | 876 | {
|
---|
[2725] | 877 | if (G.current_col != 0)
|
---|
| 878 | wrapf("\n");
|
---|
| 879 | }
|
---|
[821] | 880 |
|
---|
[2725] | 881 | #ifdef TIOCGWINSZ
|
---|
| 882 | static void set_window_size(int rows, int cols)
|
---|
| 883 | {
|
---|
| 884 | struct winsize win = { 0, 0, 0, 0 };
|
---|
| 885 |
|
---|
[1765] | 886 | if (ioctl(STDIN_FILENO, TIOCGWINSZ, &win)) {
|
---|
| 887 | if (errno != EINVAL) {
|
---|
| 888 | goto bail;
|
---|
| 889 | }
|
---|
[821] | 890 | memset(&win, 0, sizeof(win));
|
---|
| 891 | }
|
---|
| 892 |
|
---|
| 893 | if (rows >= 0)
|
---|
| 894 | win.ws_row = rows;
|
---|
| 895 | if (cols >= 0)
|
---|
| 896 | win.ws_col = cols;
|
---|
| 897 |
|
---|
| 898 | if (ioctl(STDIN_FILENO, TIOCSWINSZ, (char *) &win))
|
---|
[1765] | 899 | bail:
|
---|
[821] | 900 | perror_on_device("%s");
|
---|
| 901 | }
|
---|
[2725] | 902 | #endif
|
---|
[821] | 903 |
|
---|
[2725] | 904 | static void display_window_size(int fancy)
|
---|
[821] | 905 | {
|
---|
[1765] | 906 | const char *fmt_str = "%s\0%s: no size information for this device";
|
---|
| 907 | unsigned width, height;
|
---|
[821] | 908 |
|
---|
[1765] | 909 | if (get_terminal_width_height(STDIN_FILENO, &width, &height)) {
|
---|
[821] | 910 | if ((errno != EINVAL) || ((fmt_str += 2), !fancy)) {
|
---|
| 911 | perror_on_device(fmt_str);
|
---|
| 912 | }
|
---|
| 913 | } else {
|
---|
[2725] | 914 | wrapf(fancy ? "rows %u; columns %u;" : "%u %u\n",
|
---|
[1765] | 915 | height, width);
|
---|
[821] | 916 | }
|
---|
| 917 | }
|
---|
| 918 |
|
---|
[1765] | 919 | static const struct suffix_mult stty_suffixes[] = {
|
---|
| 920 | { "b", 512 },
|
---|
| 921 | { "k", 1024 },
|
---|
| 922 | { "B", 1024 },
|
---|
[2725] | 923 | { "", 0 }
|
---|
[1765] | 924 | };
|
---|
| 925 |
|
---|
| 926 | static const struct mode_info *find_mode(const char *name)
|
---|
[821] | 927 | {
|
---|
[2725] | 928 | int i = index_in_strings(mode_name, name);
|
---|
| 929 | return i >= 0 ? &mode_info[i] : NULL;
|
---|
[1765] | 930 | }
|
---|
[821] | 931 |
|
---|
[1765] | 932 | static const struct control_info *find_control(const char *name)
|
---|
| 933 | {
|
---|
[2725] | 934 | int i = index_in_strings(control_name, name);
|
---|
| 935 | return i >= 0 ? &control_info[i] : NULL;
|
---|
[1765] | 936 | }
|
---|
[821] | 937 |
|
---|
[1765] | 938 | enum {
|
---|
| 939 | param_need_arg = 0x80,
|
---|
| 940 | param_line = 1 | 0x80,
|
---|
| 941 | param_rows = 2 | 0x80,
|
---|
| 942 | param_cols = 3 | 0x80,
|
---|
| 943 | param_columns = 4 | 0x80,
|
---|
| 944 | param_size = 5,
|
---|
| 945 | param_speed = 6,
|
---|
| 946 | param_ispeed = 7 | 0x80,
|
---|
| 947 | param_ospeed = 8 | 0x80,
|
---|
| 948 | };
|
---|
[821] | 949 |
|
---|
[2725] | 950 | static int find_param(const char *name)
|
---|
[1765] | 951 | {
|
---|
| 952 | static const char params[] ALIGN1 =
|
---|
| 953 | "line\0" /* 1 */
|
---|
| 954 | "rows\0" /* 2 */
|
---|
| 955 | "cols\0" /* 3 */
|
---|
| 956 | "columns\0" /* 4 */
|
---|
| 957 | "size\0" /* 5 */
|
---|
| 958 | "speed\0" /* 6 */
|
---|
| 959 | "ispeed\0"
|
---|
| 960 | "ospeed\0";
|
---|
| 961 | int i = index_in_strings(params, name) + 1;
|
---|
| 962 | if (i == 0)
|
---|
| 963 | return 0;
|
---|
| 964 | if (i != 5 && i != 6)
|
---|
| 965 | i |= 0x80;
|
---|
| 966 | return i;
|
---|
| 967 | }
|
---|
| 968 |
|
---|
| 969 | static int recover_mode(const char *arg, struct termios *mode)
|
---|
| 970 | {
|
---|
| 971 | int i, n;
|
---|
| 972 | unsigned chr;
|
---|
| 973 | unsigned long iflag, oflag, cflag, lflag;
|
---|
| 974 |
|
---|
| 975 | /* Scan into temporaries since it is too much trouble to figure out
|
---|
| 976 | the right format for 'tcflag_t' */
|
---|
| 977 | if (sscanf(arg, "%lx:%lx:%lx:%lx%n",
|
---|
| 978 | &iflag, &oflag, &cflag, &lflag, &n) != 4)
|
---|
| 979 | return 0;
|
---|
| 980 | mode->c_iflag = iflag;
|
---|
| 981 | mode->c_oflag = oflag;
|
---|
| 982 | mode->c_cflag = cflag;
|
---|
| 983 | mode->c_lflag = lflag;
|
---|
| 984 | arg += n;
|
---|
| 985 | for (i = 0; i < NCCS; ++i) {
|
---|
| 986 | if (sscanf(arg, ":%x%n", &chr, &n) != 1)
|
---|
| 987 | return 0;
|
---|
| 988 | mode->c_cc[i] = chr;
|
---|
| 989 | arg += n;
|
---|
[821] | 990 | }
|
---|
[1765] | 991 |
|
---|
| 992 | /* Fail if there are too many fields */
|
---|
| 993 | if (*arg != '\0')
|
---|
| 994 | return 0;
|
---|
| 995 |
|
---|
| 996 | return 1;
|
---|
[821] | 997 | }
|
---|
| 998 |
|
---|
[1765] | 999 | static void display_recoverable(const struct termios *mode,
|
---|
[2725] | 1000 | int UNUSED_PARAM dummy)
|
---|
[821] | 1001 | {
|
---|
[1765] | 1002 | int i;
|
---|
| 1003 | printf("%lx:%lx:%lx:%lx",
|
---|
| 1004 | (unsigned long) mode->c_iflag, (unsigned long) mode->c_oflag,
|
---|
| 1005 | (unsigned long) mode->c_cflag, (unsigned long) mode->c_lflag);
|
---|
| 1006 | for (i = 0; i < NCCS; ++i)
|
---|
| 1007 | printf(":%x", (unsigned int) mode->c_cc[i]);
|
---|
[2725] | 1008 | bb_putchar('\n');
|
---|
[1765] | 1009 | }
|
---|
[821] | 1010 |
|
---|
[1765] | 1011 | static void display_speed(const struct termios *mode, int fancy)
|
---|
| 1012 | {
|
---|
[2725] | 1013 | //____________________ 01234567 8 9
|
---|
[1765] | 1014 | const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;";
|
---|
| 1015 | unsigned long ispeed, ospeed;
|
---|
| 1016 |
|
---|
[3232] | 1017 | ispeed = cfgetispeed(mode);
|
---|
| 1018 | ospeed = cfgetospeed(mode);
|
---|
| 1019 | if (ispeed == 0 || ispeed == ospeed) {
|
---|
[1765] | 1020 | ispeed = ospeed; /* in case ispeed was 0 */
|
---|
[2725] | 1021 | //________ 0123 4 5 6 7 8 9
|
---|
[1765] | 1022 | fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;";
|
---|
[821] | 1023 | }
|
---|
[1765] | 1024 | if (fancy) fmt_str += 9;
|
---|
| 1025 | wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed));
|
---|
[821] | 1026 | }
|
---|
| 1027 |
|
---|
[2725] | 1028 | static void do_display(const struct termios *mode, int all)
|
---|
[821] | 1029 | {
|
---|
| 1030 | int i;
|
---|
| 1031 | tcflag_t *bitsp;
|
---|
| 1032 | unsigned long mask;
|
---|
[1765] | 1033 | int prev_type = control;
|
---|
[821] | 1034 |
|
---|
| 1035 | display_speed(mode, 1);
|
---|
[1765] | 1036 | if (all)
|
---|
| 1037 | display_window_size(1);
|
---|
[3232] | 1038 | #ifdef __linux__
|
---|
[2725] | 1039 | wrapf("line = %u;\n", mode->c_line);
|
---|
[1765] | 1040 | #else
|
---|
[2725] | 1041 | newline();
|
---|
[821] | 1042 | #endif
|
---|
| 1043 |
|
---|
[2725] | 1044 | for (i = 0; i != CIDX_min; ++i) {
|
---|
[1765] | 1045 | /* If swtch is the same as susp, don't print both */
|
---|
[821] | 1046 | #if VSWTCH == VSUSP
|
---|
[2725] | 1047 | if (i == CIDX_swtch)
|
---|
[821] | 1048 | continue;
|
---|
| 1049 | #endif
|
---|
[1765] | 1050 | /* If eof uses the same slot as min, only print whichever applies */
|
---|
[821] | 1051 | #if VEOF == VMIN
|
---|
[2725] | 1052 | if (!(mode->c_lflag & ICANON)
|
---|
| 1053 | && (i == CIDX_eof || i == CIDX_eol)
|
---|
| 1054 | ) {
|
---|
| 1055 | continue;
|
---|
| 1056 | }
|
---|
[821] | 1057 | #endif
|
---|
[2725] | 1058 | wrapf("%s = %s;", nth_string(control_name, i),
|
---|
[3232] | 1059 | visible(mode->c_cc[control_info[i].offset]));
|
---|
[821] | 1060 | }
|
---|
[1765] | 1061 | #if VEOF == VMIN
|
---|
| 1062 | if ((mode->c_lflag & ICANON) == 0)
|
---|
| 1063 | #endif
|
---|
[2725] | 1064 | wrapf("min = %u; time = %u;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
|
---|
| 1065 | newline();
|
---|
[821] | 1066 |
|
---|
| 1067 | for (i = 0; i < NUM_mode_info; ++i) {
|
---|
| 1068 | if (mode_info[i].flags & OMIT)
|
---|
| 1069 | continue;
|
---|
[1765] | 1070 | if (mode_info[i].type != prev_type) {
|
---|
[2725] | 1071 | newline();
|
---|
[1765] | 1072 | prev_type = mode_info[i].type;
|
---|
[821] | 1073 | }
|
---|
| 1074 |
|
---|
[1765] | 1075 | bitsp = mode_type_flag(mode_info[i].type, mode);
|
---|
[821] | 1076 | mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits;
|
---|
| 1077 | if ((*bitsp & mask) == mode_info[i].bits) {
|
---|
[1765] | 1078 | if (all || (mode_info[i].flags & SANE_UNSET))
|
---|
[2725] | 1079 | wrapf("-%s"+1, nth_string(mode_name, i));
|
---|
[1765] | 1080 | } else {
|
---|
[2725] | 1081 | if ((all && mode_info[i].flags & REV)
|
---|
| 1082 | || (!all && (mode_info[i].flags & (SANE_SET | REV)) == (SANE_SET | REV))
|
---|
| 1083 | ) {
|
---|
| 1084 | wrapf("-%s", nth_string(mode_name, i));
|
---|
| 1085 | }
|
---|
[821] | 1086 | }
|
---|
| 1087 | }
|
---|
[2725] | 1088 | newline();
|
---|
[821] | 1089 | }
|
---|
| 1090 |
|
---|
[1765] | 1091 | static void sane_mode(struct termios *mode)
|
---|
[821] | 1092 | {
|
---|
| 1093 | int i;
|
---|
| 1094 | tcflag_t *bitsp;
|
---|
| 1095 |
|
---|
[1765] | 1096 | for (i = 0; i < NUM_control_info; ++i) {
|
---|
| 1097 | #if VMIN == VEOF
|
---|
[2725] | 1098 | if (i == CIDX_min)
|
---|
[1765] | 1099 | break;
|
---|
[821] | 1100 | #endif
|
---|
[1765] | 1101 | mode->c_cc[control_info[i].offset] = control_info[i].saneval;
|
---|
[821] | 1102 | }
|
---|
| 1103 |
|
---|
| 1104 | for (i = 0; i < NUM_mode_info; ++i) {
|
---|
[1765] | 1105 | if (mode_info[i].flags & SANE_SET) {
|
---|
| 1106 | bitsp = mode_type_flag(mode_info[i].type, mode);
|
---|
| 1107 | *bitsp = (*bitsp & ~((unsigned long)mode_info[i].mask))
|
---|
| 1108 | | mode_info[i].bits;
|
---|
| 1109 | } else if (mode_info[i].flags & SANE_UNSET) {
|
---|
| 1110 | bitsp = mode_type_flag(mode_info[i].type, mode);
|
---|
| 1111 | *bitsp = *bitsp & ~((unsigned long)mode_info[i].mask)
|
---|
| 1112 | & ~mode_info[i].bits;
|
---|
[821] | 1113 | }
|
---|
| 1114 | }
|
---|
| 1115 | }
|
---|
| 1116 |
|
---|
[1765] | 1117 | static void set_mode(const struct mode_info *info, int reversed,
|
---|
| 1118 | struct termios *mode)
|
---|
[821] | 1119 | {
|
---|
[1765] | 1120 | tcflag_t *bitsp;
|
---|
[821] | 1121 |
|
---|
[1765] | 1122 | bitsp = mode_type_flag(info->type, mode);
|
---|
| 1123 |
|
---|
| 1124 | if (bitsp) {
|
---|
| 1125 | if (reversed)
|
---|
| 1126 | *bitsp = *bitsp & ~info->mask & ~info->bits;
|
---|
| 1127 | else
|
---|
| 1128 | *bitsp = (*bitsp & ~info->mask) | info->bits;
|
---|
| 1129 | return;
|
---|
[821] | 1130 | }
|
---|
[1765] | 1131 |
|
---|
| 1132 | /* Combination mode */
|
---|
[2725] | 1133 | if (info == &mode_info[IDX_evenp] || info == &mode_info[IDX_parity]) {
|
---|
[1765] | 1134 | if (reversed)
|
---|
| 1135 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1136 | else
|
---|
[2725] | 1137 | mode->c_cflag = (mode->c_cflag & ~PARODD & ~CSIZE) | PARENB | CS7;
|
---|
| 1138 | } else if (info == &mode_info[IDX_oddp]) {
|
---|
[1765] | 1139 | if (reversed)
|
---|
| 1140 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1141 | else
|
---|
[2725] | 1142 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARODD | PARENB;
|
---|
| 1143 | } else if (info == &mode_info[IDX_nl]) {
|
---|
[1765] | 1144 | if (reversed) {
|
---|
| 1145 | mode->c_iflag = (mode->c_iflag | ICRNL) & ~INLCR & ~IGNCR;
|
---|
[2725] | 1146 | mode->c_oflag = (mode->c_oflag | ONLCR) & ~OCRNL & ~ONLRET;
|
---|
[1765] | 1147 | } else {
|
---|
| 1148 | mode->c_iflag = mode->c_iflag & ~ICRNL;
|
---|
| 1149 | if (ONLCR) mode->c_oflag = mode->c_oflag & ~ONLCR;
|
---|
| 1150 | }
|
---|
[2725] | 1151 | } else if (info == &mode_info[IDX_ek]) {
|
---|
[1765] | 1152 | mode->c_cc[VERASE] = CERASE;
|
---|
| 1153 | mode->c_cc[VKILL] = CKILL;
|
---|
[2725] | 1154 | } else if (info == &mode_info[IDX_sane]) {
|
---|
[1765] | 1155 | sane_mode(mode);
|
---|
[2725] | 1156 | } else if (info == &mode_info[IDX_cbreak]) {
|
---|
[1765] | 1157 | if (reversed)
|
---|
| 1158 | mode->c_lflag |= ICANON;
|
---|
| 1159 | else
|
---|
| 1160 | mode->c_lflag &= ~ICANON;
|
---|
[2725] | 1161 | } else if (info == &mode_info[IDX_pass8]) {
|
---|
[1765] | 1162 | if (reversed) {
|
---|
| 1163 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
|
---|
| 1164 | mode->c_iflag |= ISTRIP;
|
---|
| 1165 | } else {
|
---|
| 1166 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1167 | mode->c_iflag &= ~ISTRIP;
|
---|
| 1168 | }
|
---|
[2725] | 1169 | } else if (info == &mode_info[IDX_litout]) {
|
---|
[1765] | 1170 | if (reversed) {
|
---|
| 1171 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
|
---|
| 1172 | mode->c_iflag |= ISTRIP;
|
---|
| 1173 | mode->c_oflag |= OPOST;
|
---|
| 1174 | } else {
|
---|
| 1175 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1176 | mode->c_iflag &= ~ISTRIP;
|
---|
| 1177 | mode->c_oflag &= ~OPOST;
|
---|
| 1178 | }
|
---|
[2725] | 1179 | } else if (info == &mode_info[IDX_raw] || info == &mode_info[IDX_cooked]) {
|
---|
| 1180 | if ((info == &mode_info[IDX_raw] && reversed)
|
---|
| 1181 | || (info == &mode_info[IDX_cooked] && !reversed)
|
---|
| 1182 | ) {
|
---|
[1765] | 1183 | /* Cooked mode */
|
---|
| 1184 | mode->c_iflag |= BRKINT | IGNPAR | ISTRIP | ICRNL | IXON;
|
---|
| 1185 | mode->c_oflag |= OPOST;
|
---|
| 1186 | mode->c_lflag |= ISIG | ICANON;
|
---|
| 1187 | #if VMIN == VEOF
|
---|
| 1188 | mode->c_cc[VEOF] = CEOF;
|
---|
| 1189 | #endif
|
---|
| 1190 | #if VTIME == VEOL
|
---|
| 1191 | mode->c_cc[VEOL] = CEOL;
|
---|
| 1192 | #endif
|
---|
| 1193 | } else {
|
---|
| 1194 | /* Raw mode */
|
---|
| 1195 | mode->c_iflag = 0;
|
---|
| 1196 | mode->c_oflag &= ~OPOST;
|
---|
| 1197 | mode->c_lflag &= ~(ISIG | ICANON | XCASE);
|
---|
| 1198 | mode->c_cc[VMIN] = 1;
|
---|
| 1199 | mode->c_cc[VTIME] = 0;
|
---|
| 1200 | }
|
---|
| 1201 | }
|
---|
[2725] | 1202 | #if IXANY
|
---|
| 1203 | else if (info == &mode_info[IDX_decctlq]) {
|
---|
[1765] | 1204 | if (reversed)
|
---|
| 1205 | mode->c_iflag |= IXANY;
|
---|
| 1206 | else
|
---|
| 1207 | mode->c_iflag &= ~IXANY;
|
---|
| 1208 | }
|
---|
[2725] | 1209 | #endif
|
---|
| 1210 | #if TABDLY
|
---|
| 1211 | else if (info == &mode_info[IDX_tabs]) {
|
---|
[1765] | 1212 | if (reversed)
|
---|
| 1213 | mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB3;
|
---|
| 1214 | else
|
---|
| 1215 | mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB0;
|
---|
| 1216 | }
|
---|
[2725] | 1217 | #endif
|
---|
| 1218 | #if OXTABS
|
---|
| 1219 | else if (info == &mode_info[IDX_tabs]) {
|
---|
[1765] | 1220 | if (reversed)
|
---|
| 1221 | mode->c_oflag |= OXTABS;
|
---|
| 1222 | else
|
---|
| 1223 | mode->c_oflag &= ~OXTABS;
|
---|
| 1224 | }
|
---|
[2725] | 1225 | #endif
|
---|
| 1226 | #if XCASE && IUCLC && OLCUC
|
---|
| 1227 | else if (info==&mode_info[IDX_lcase] || info==&mode_info[IDX_LCASE]) {
|
---|
[1765] | 1228 | if (reversed) {
|
---|
| 1229 | mode->c_lflag &= ~XCASE;
|
---|
| 1230 | mode->c_iflag &= ~IUCLC;
|
---|
| 1231 | mode->c_oflag &= ~OLCUC;
|
---|
| 1232 | } else {
|
---|
| 1233 | mode->c_lflag |= XCASE;
|
---|
| 1234 | mode->c_iflag |= IUCLC;
|
---|
| 1235 | mode->c_oflag |= OLCUC;
|
---|
| 1236 | }
|
---|
| 1237 | }
|
---|
[2725] | 1238 | #endif
|
---|
| 1239 | else if (info == &mode_info[IDX_crt]) {
|
---|
[1765] | 1240 | mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
|
---|
[2725] | 1241 | } else if (info == &mode_info[IDX_dec]) {
|
---|
[1765] | 1242 | mode->c_cc[VINTR] = 3; /* ^C */
|
---|
| 1243 | mode->c_cc[VERASE] = 127; /* DEL */
|
---|
| 1244 | mode->c_cc[VKILL] = 21; /* ^U */
|
---|
| 1245 | mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
|
---|
| 1246 | if (IXANY) mode->c_iflag &= ~IXANY;
|
---|
| 1247 | }
|
---|
[821] | 1248 | }
|
---|
| 1249 |
|
---|
[1765] | 1250 | static void set_control_char_or_die(const struct control_info *info,
|
---|
| 1251 | const char *arg, struct termios *mode)
|
---|
[821] | 1252 | {
|
---|
[1765] | 1253 | unsigned char value;
|
---|
[821] | 1254 |
|
---|
[2725] | 1255 | if (info == &control_info[CIDX_min] || info == &control_info[CIDX_time])
|
---|
[1765] | 1256 | value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
|
---|
| 1257 | else if (arg[0] == '\0' || arg[1] == '\0')
|
---|
| 1258 | value = arg[0];
|
---|
[2725] | 1259 | else if (strcmp(arg, "^-") == 0 || strcmp(arg, "undef") == 0)
|
---|
[1765] | 1260 | value = _POSIX_VDISABLE;
|
---|
| 1261 | else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */
|
---|
| 1262 | value = arg[1] & 0x1f; /* Non-letters get weird results */
|
---|
| 1263 | if (arg[1] == '?')
|
---|
| 1264 | value = 127;
|
---|
| 1265 | } else
|
---|
| 1266 | value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
|
---|
| 1267 | mode->c_cc[info->offset] = value;
|
---|
[821] | 1268 | }
|
---|
| 1269 |
|
---|
[2725] | 1270 | #define STTY_require_set_attr (1 << 0)
|
---|
| 1271 | #define STTY_speed_was_set (1 << 1)
|
---|
| 1272 | #define STTY_verbose_output (1 << 2)
|
---|
| 1273 | #define STTY_recoverable_output (1 << 3)
|
---|
| 1274 | #define STTY_noargs (1 << 4)
|
---|
| 1275 |
|
---|
| 1276 | int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 1277 | int stty_main(int argc UNUSED_PARAM, char **argv)
|
---|
[821] | 1278 | {
|
---|
[1765] | 1279 | struct termios mode;
|
---|
[2725] | 1280 | void (*output_func)(const struct termios *, int);
|
---|
[1765] | 1281 | const char *file_name = NULL;
|
---|
| 1282 | int display_all = 0;
|
---|
| 1283 | int stty_state;
|
---|
| 1284 | int k;
|
---|
[821] | 1285 |
|
---|
[2725] | 1286 | INIT_G();
|
---|
| 1287 |
|
---|
[1765] | 1288 | stty_state = STTY_noargs;
|
---|
| 1289 | output_func = do_display;
|
---|
[821] | 1290 |
|
---|
[1765] | 1291 | /* First pass: only parse/verify command line params */
|
---|
| 1292 | k = 0;
|
---|
| 1293 | while (argv[++k]) {
|
---|
| 1294 | const struct mode_info *mp;
|
---|
| 1295 | const struct control_info *cp;
|
---|
| 1296 | const char *arg = argv[k];
|
---|
| 1297 | const char *argnext = argv[k+1];
|
---|
| 1298 | int param;
|
---|
[821] | 1299 |
|
---|
[1765] | 1300 | if (arg[0] == '-') {
|
---|
| 1301 | int i;
|
---|
| 1302 | mp = find_mode(arg+1);
|
---|
| 1303 | if (mp) {
|
---|
| 1304 | if (!(mp->flags & REV))
|
---|
| 1305 | goto invalid_argument;
|
---|
| 1306 | stty_state &= ~STTY_noargs;
|
---|
| 1307 | continue;
|
---|
| 1308 | }
|
---|
| 1309 | /* It is an option - parse it */
|
---|
| 1310 | i = 0;
|
---|
| 1311 | while (arg[++i]) {
|
---|
| 1312 | switch (arg[i]) {
|
---|
| 1313 | case 'a':
|
---|
| 1314 | stty_state |= STTY_verbose_output;
|
---|
| 1315 | output_func = do_display;
|
---|
| 1316 | display_all = 1;
|
---|
| 1317 | break;
|
---|
| 1318 | case 'g':
|
---|
| 1319 | stty_state |= STTY_recoverable_output;
|
---|
| 1320 | output_func = display_recoverable;
|
---|
| 1321 | break;
|
---|
| 1322 | case 'F':
|
---|
| 1323 | if (file_name)
|
---|
| 1324 | bb_error_msg_and_die("only one device may be specified");
|
---|
| 1325 | file_name = &arg[i+1]; /* "-Fdevice" ? */
|
---|
| 1326 | if (!file_name[0]) { /* nope, "-F device" */
|
---|
| 1327 | int p = k+1; /* argv[p] is argnext */
|
---|
| 1328 | file_name = argnext;
|
---|
| 1329 | if (!file_name)
|
---|
| 1330 | bb_error_msg_and_die(bb_msg_requires_arg, "-F");
|
---|
| 1331 | /* remove -F param from arg[vc] */
|
---|
[2725] | 1332 | while (argv[p]) {
|
---|
| 1333 | argv[p] = argv[p+1];
|
---|
| 1334 | ++p;
|
---|
| 1335 | }
|
---|
[1765] | 1336 | }
|
---|
| 1337 | goto end_option;
|
---|
| 1338 | default:
|
---|
| 1339 | goto invalid_argument;
|
---|
| 1340 | }
|
---|
| 1341 | }
|
---|
| 1342 | end_option:
|
---|
| 1343 | continue;
|
---|
| 1344 | }
|
---|
[821] | 1345 |
|
---|
[1765] | 1346 | mp = find_mode(arg);
|
---|
| 1347 | if (mp) {
|
---|
| 1348 | stty_state &= ~STTY_noargs;
|
---|
| 1349 | continue;
|
---|
| 1350 | }
|
---|
[821] | 1351 |
|
---|
[1765] | 1352 | cp = find_control(arg);
|
---|
| 1353 | if (cp) {
|
---|
| 1354 | if (!argnext)
|
---|
| 1355 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1356 | /* called for the side effect of xfunc death only */
|
---|
| 1357 | set_control_char_or_die(cp, argnext, &mode);
|
---|
| 1358 | stty_state &= ~STTY_noargs;
|
---|
| 1359 | ++k;
|
---|
| 1360 | continue;
|
---|
| 1361 | }
|
---|
[821] | 1362 |
|
---|
[1765] | 1363 | param = find_param(arg);
|
---|
| 1364 | if (param & param_need_arg) {
|
---|
| 1365 | if (!argnext)
|
---|
| 1366 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1367 | ++k;
|
---|
| 1368 | }
|
---|
| 1369 |
|
---|
| 1370 | switch (param) {
|
---|
[3232] | 1371 | #ifdef __linux__
|
---|
[1765] | 1372 | case param_line:
|
---|
| 1373 | # ifndef TIOCGWINSZ
|
---|
| 1374 | xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
|
---|
[821] | 1375 | break;
|
---|
[1765] | 1376 | # endif /* else fall-through */
|
---|
[821] | 1377 | #endif
|
---|
[1765] | 1378 | #ifdef TIOCGWINSZ
|
---|
| 1379 | case param_rows:
|
---|
| 1380 | case param_cols:
|
---|
| 1381 | case param_columns:
|
---|
| 1382 | xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
|
---|
| 1383 | break;
|
---|
| 1384 | case param_size:
|
---|
| 1385 | #endif
|
---|
| 1386 | case param_speed:
|
---|
| 1387 | break;
|
---|
| 1388 | case param_ispeed:
|
---|
| 1389 | /* called for the side effect of xfunc death only */
|
---|
| 1390 | set_speed_or_die(input_speed, argnext, &mode);
|
---|
| 1391 | break;
|
---|
| 1392 | case param_ospeed:
|
---|
| 1393 | /* called for the side effect of xfunc death only */
|
---|
| 1394 | set_speed_or_die(output_speed, argnext, &mode);
|
---|
| 1395 | break;
|
---|
| 1396 | default:
|
---|
| 1397 | if (recover_mode(arg, &mode) == 1) break;
|
---|
| 1398 | if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) break;
|
---|
| 1399 | invalid_argument:
|
---|
| 1400 | bb_error_msg_and_die("invalid argument '%s'", arg);
|
---|
| 1401 | }
|
---|
| 1402 | stty_state &= ~STTY_noargs;
|
---|
[821] | 1403 | }
|
---|
| 1404 |
|
---|
[1765] | 1405 | /* Specifying both -a and -g is an error */
|
---|
| 1406 | if ((stty_state & (STTY_verbose_output | STTY_recoverable_output)) ==
|
---|
[3232] | 1407 | (STTY_verbose_output | STTY_recoverable_output)
|
---|
| 1408 | ) {
|
---|
| 1409 | bb_error_msg_and_die("-a and -g are mutually exclusive");
|
---|
| 1410 | }
|
---|
[1765] | 1411 | /* Specifying -a or -g with non-options is an error */
|
---|
[3232] | 1412 | if ((stty_state & (STTY_verbose_output | STTY_recoverable_output))
|
---|
| 1413 | && !(stty_state & STTY_noargs)
|
---|
[2725] | 1414 | ) {
|
---|
[3232] | 1415 | bb_error_msg_and_die("modes may not be set when -a or -g is used");
|
---|
[2725] | 1416 | }
|
---|
[1765] | 1417 |
|
---|
| 1418 | /* Now it is safe to start doing things */
|
---|
| 1419 | if (file_name) {
|
---|
[2725] | 1420 | G.device_name = file_name;
|
---|
| 1421 | xmove_fd(xopen_nonblocking(G.device_name), STDIN_FILENO);
|
---|
| 1422 | ndelay_off(STDIN_FILENO);
|
---|
[821] | 1423 | }
|
---|
| 1424 |
|
---|
[1765] | 1425 | /* Initialize to all zeroes so there is no risk memcmp will report a
|
---|
| 1426 | spurious difference in an uninitialized portion of the structure */
|
---|
| 1427 | memset(&mode, 0, sizeof(mode));
|
---|
| 1428 | if (tcgetattr(STDIN_FILENO, &mode))
|
---|
| 1429 | perror_on_device_and_die("%s");
|
---|
[821] | 1430 |
|
---|
[1765] | 1431 | if (stty_state & (STTY_verbose_output | STTY_recoverable_output | STTY_noargs)) {
|
---|
[2725] | 1432 | get_terminal_width_height(STDOUT_FILENO, &G.max_col, NULL);
|
---|
[1765] | 1433 | output_func(&mode, display_all);
|
---|
| 1434 | return EXIT_SUCCESS;
|
---|
[821] | 1435 | }
|
---|
| 1436 |
|
---|
[1765] | 1437 | /* Second pass: perform actions */
|
---|
| 1438 | k = 0;
|
---|
| 1439 | while (argv[++k]) {
|
---|
| 1440 | const struct mode_info *mp;
|
---|
| 1441 | const struct control_info *cp;
|
---|
| 1442 | const char *arg = argv[k];
|
---|
| 1443 | const char *argnext = argv[k+1];
|
---|
| 1444 | int param;
|
---|
[821] | 1445 |
|
---|
[1765] | 1446 | if (arg[0] == '-') {
|
---|
| 1447 | mp = find_mode(arg+1);
|
---|
| 1448 | if (mp) {
|
---|
| 1449 | set_mode(mp, 1 /* reversed */, &mode);
|
---|
| 1450 | stty_state |= STTY_require_set_attr;
|
---|
| 1451 | }
|
---|
| 1452 | /* It is an option - already parsed. Skip it */
|
---|
| 1453 | continue;
|
---|
| 1454 | }
|
---|
| 1455 |
|
---|
| 1456 | mp = find_mode(arg);
|
---|
| 1457 | if (mp) {
|
---|
| 1458 | set_mode(mp, 0 /* non-reversed */, &mode);
|
---|
| 1459 | stty_state |= STTY_require_set_attr;
|
---|
| 1460 | continue;
|
---|
| 1461 | }
|
---|
| 1462 |
|
---|
| 1463 | cp = find_control(arg);
|
---|
| 1464 | if (cp) {
|
---|
| 1465 | ++k;
|
---|
| 1466 | set_control_char_or_die(cp, argnext, &mode);
|
---|
| 1467 | stty_state |= STTY_require_set_attr;
|
---|
| 1468 | continue;
|
---|
| 1469 | }
|
---|
| 1470 |
|
---|
| 1471 | param = find_param(arg);
|
---|
| 1472 | if (param & param_need_arg) {
|
---|
| 1473 | ++k;
|
---|
| 1474 | }
|
---|
| 1475 |
|
---|
| 1476 | switch (param) {
|
---|
[3232] | 1477 | #ifdef __linux__
|
---|
[1765] | 1478 | case param_line:
|
---|
| 1479 | mode.c_line = xatoul_sfx(argnext, stty_suffixes);
|
---|
| 1480 | stty_state |= STTY_require_set_attr;
|
---|
| 1481 | break;
|
---|
| 1482 | #endif
|
---|
| 1483 | #ifdef TIOCGWINSZ
|
---|
| 1484 | case param_cols:
|
---|
[2725] | 1485 | case param_columns:
|
---|
[1765] | 1486 | set_window_size(-1, xatoul_sfx(argnext, stty_suffixes));
|
---|
| 1487 | break;
|
---|
| 1488 | case param_size:
|
---|
| 1489 | display_window_size(0);
|
---|
| 1490 | break;
|
---|
| 1491 | case param_rows:
|
---|
| 1492 | set_window_size(xatoul_sfx(argnext, stty_suffixes), -1);
|
---|
| 1493 | break;
|
---|
| 1494 | #endif
|
---|
| 1495 | case param_speed:
|
---|
| 1496 | display_speed(&mode, 0);
|
---|
| 1497 | break;
|
---|
| 1498 | case param_ispeed:
|
---|
| 1499 | set_speed_or_die(input_speed, argnext, &mode);
|
---|
| 1500 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1501 | break;
|
---|
| 1502 | case param_ospeed:
|
---|
| 1503 | set_speed_or_die(output_speed, argnext, &mode);
|
---|
| 1504 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1505 | break;
|
---|
| 1506 | default:
|
---|
| 1507 | if (recover_mode(arg, &mode) == 1)
|
---|
| 1508 | stty_state |= STTY_require_set_attr;
|
---|
| 1509 | else /* true: if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) */{
|
---|
| 1510 | set_speed_or_die(both_speeds, arg, &mode);
|
---|
| 1511 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1512 | } /* else - impossible (caught in the first pass):
|
---|
| 1513 | bb_error_msg_and_die("invalid argument '%s'", arg); */
|
---|
| 1514 | }
|
---|
[821] | 1515 | }
|
---|
| 1516 |
|
---|
[1765] | 1517 | if (stty_state & STTY_require_set_attr) {
|
---|
| 1518 | struct termios new_mode;
|
---|
[821] | 1519 |
|
---|
[1765] | 1520 | if (tcsetattr(STDIN_FILENO, TCSADRAIN, &mode))
|
---|
| 1521 | perror_on_device_and_die("%s");
|
---|
[821] | 1522 |
|
---|
[1765] | 1523 | /* POSIX (according to Zlotnick's book) tcsetattr returns zero if
|
---|
| 1524 | it performs *any* of the requested operations. This means it
|
---|
| 1525 | can report 'success' when it has actually failed to perform
|
---|
| 1526 | some proper subset of the requested operations. To detect
|
---|
| 1527 | this partial failure, get the current terminal attributes and
|
---|
| 1528 | compare them to the requested ones */
|
---|
[821] | 1529 |
|
---|
[1765] | 1530 | /* Initialize to all zeroes so there is no risk memcmp will report a
|
---|
| 1531 | spurious difference in an uninitialized portion of the structure */
|
---|
| 1532 | memset(&new_mode, 0, sizeof(new_mode));
|
---|
| 1533 | if (tcgetattr(STDIN_FILENO, &new_mode))
|
---|
| 1534 | perror_on_device_and_die("%s");
|
---|
| 1535 |
|
---|
| 1536 | if (memcmp(&mode, &new_mode, sizeof(mode)) != 0) {
|
---|
[2725] | 1537 | #if CIBAUD
|
---|
[1765] | 1538 | /* SunOS 4.1.3 (at least) has the problem that after this sequence,
|
---|
| 1539 | tcgetattr (&m1); tcsetattr (&m1); tcgetattr (&m2);
|
---|
| 1540 | sometimes (m1 != m2). The only difference is in the four bits
|
---|
| 1541 | of the c_cflag field corresponding to the baud rate. To save
|
---|
| 1542 | Sun users a little confusion, don't report an error if this
|
---|
| 1543 | happens. But suppress the error only if we haven't tried to
|
---|
| 1544 | set the baud rate explicitly -- otherwise we'd never give an
|
---|
| 1545 | error for a true failure to set the baud rate */
|
---|
| 1546 |
|
---|
| 1547 | new_mode.c_cflag &= (~CIBAUD);
|
---|
| 1548 | if ((stty_state & STTY_speed_was_set)
|
---|
| 1549 | || memcmp(&mode, &new_mode, sizeof(mode)) != 0)
|
---|
[821] | 1550 | #endif
|
---|
[1765] | 1551 | perror_on_device_and_die("%s: cannot perform all requested operations");
|
---|
| 1552 | }
|
---|
| 1553 | }
|
---|
| 1554 |
|
---|
| 1555 | return EXIT_SUCCESS;
|
---|
| 1556 | }
|
---|