[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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[3621] | 35 | #include "common_bufsiz.h"
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[821] | 36 |
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| 37 | #ifndef _POSIX_VDISABLE
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| 38 | # define _POSIX_VDISABLE ((unsigned char) 0)
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| 39 | #endif
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| 40 |
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| 41 | #define Control(c) ((c) & 0x1f)
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[1765] | 42 | /* Canonical values for control characters */
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[821] | 43 | #ifndef CINTR
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[1765] | 44 | # define CINTR Control('c')
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[821] | 45 | #endif
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| 46 | #ifndef CQUIT
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| 47 | # define CQUIT 28
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| 48 | #endif
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| 49 | #ifndef CERASE
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| 50 | # define CERASE 127
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| 51 | #endif
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| 52 | #ifndef CKILL
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[1765] | 53 | # define CKILL Control('u')
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[821] | 54 | #endif
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| 55 | #ifndef CEOF
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[1765] | 56 | # define CEOF Control('d')
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[821] | 57 | #endif
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| 58 | #ifndef CEOL
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| 59 | # define CEOL _POSIX_VDISABLE
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| 60 | #endif
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| 61 | #ifndef CSTART
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[1765] | 62 | # define CSTART Control('q')
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[821] | 63 | #endif
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| 64 | #ifndef CSTOP
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[1765] | 65 | # define CSTOP Control('s')
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[821] | 66 | #endif
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| 67 | #ifndef CSUSP
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[1765] | 68 | # define CSUSP Control('z')
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[821] | 69 | #endif
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| 70 | #if defined(VEOL2) && !defined(CEOL2)
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| 71 | # define CEOL2 _POSIX_VDISABLE
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| 72 | #endif
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[3232] | 73 | /* glibc-2.12.1 uses only VSWTC name */
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| 74 | #if defined(VSWTC) && !defined(VSWTCH)
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| 75 | # define VSWTCH VSWTC
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| 76 | #endif
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[1765] | 77 | /* ISC renamed swtch to susp for termios, but we'll accept either name */
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[821] | 78 | #if defined(VSUSP) && !defined(VSWTCH)
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| 79 | # define VSWTCH VSUSP
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| 80 | # define CSWTCH CSUSP
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| 81 | #endif
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| 82 | #if defined(VSWTCH) && !defined(CSWTCH)
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| 83 | # define CSWTCH _POSIX_VDISABLE
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| 84 | #endif
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| 85 |
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[1765] | 86 | /* SunOS 5.3 loses (^Z doesn't work) if 'swtch' is the same as 'susp'.
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| 87 | So the default is to disable 'swtch.' */
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| 88 | #if defined(__sparc__) && defined(__svr4__)
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[821] | 89 | # undef CSWTCH
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| 90 | # define CSWTCH _POSIX_VDISABLE
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| 91 | #endif
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| 92 |
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[1765] | 93 | #if defined(VWERSE) && !defined(VWERASE) /* AIX-3.2.5 */
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[821] | 94 | # define VWERASE VWERSE
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| 95 | #endif
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[1765] | 96 | #if defined(VDSUSP) && !defined(CDSUSP)
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| 97 | # define CDSUSP Control('y')
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[821] | 98 | #endif
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| 99 | #if !defined(VREPRINT) && defined(VRPRNT) /* Irix 4.0.5 */
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| 100 | # define VREPRINT VRPRNT
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| 101 | #endif
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| 102 | #if defined(VREPRINT) && !defined(CRPRNT)
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[1765] | 103 | # define CRPRNT Control('r')
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[821] | 104 | #endif
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| 105 | #if defined(VWERASE) && !defined(CWERASE)
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[1765] | 106 | # define CWERASE Control('w')
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[821] | 107 | #endif
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| 108 | #if defined(VLNEXT) && !defined(CLNEXT)
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[1765] | 109 | # define CLNEXT Control('v')
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[821] | 110 | #endif
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| 111 | #if defined(VDISCARD) && !defined(VFLUSHO)
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| 112 | # define VFLUSHO VDISCARD
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| 113 | #endif
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| 114 | #if defined(VFLUSH) && !defined(VFLUSHO) /* Ultrix 4.2 */
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| 115 | # define VFLUSHO VFLUSH
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| 116 | #endif
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| 117 | #if defined(CTLECH) && !defined(ECHOCTL) /* Ultrix 4.3 */
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| 118 | # define ECHOCTL CTLECH
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| 119 | #endif
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| 120 | #if defined(TCTLECH) && !defined(ECHOCTL) /* Ultrix 4.2 */
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| 121 | # define ECHOCTL TCTLECH
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| 122 | #endif
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| 123 | #if defined(CRTKIL) && !defined(ECHOKE) /* Ultrix 4.2 and 4.3 */
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| 124 | # define ECHOKE CRTKIL
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| 125 | #endif
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| 126 | #if defined(VFLUSHO) && !defined(CFLUSHO)
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[1765] | 127 | # define CFLUSHO Control('o')
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[821] | 128 | #endif
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| 129 | #if defined(VSTATUS) && !defined(CSTATUS)
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[1765] | 130 | # define CSTATUS Control('t')
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[821] | 131 | #endif
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| 132 |
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[2725] | 133 | /* Save us from #ifdef forest plague */
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| 134 | #ifndef BSDLY
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| 135 | # define BSDLY 0
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| 136 | #endif
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| 137 | #ifndef CIBAUD
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| 138 | # define CIBAUD 0
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| 139 | #endif
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| 140 | #ifndef CRDLY
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| 141 | # define CRDLY 0
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| 142 | #endif
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| 143 | #ifndef CRTSCTS
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| 144 | # define CRTSCTS 0
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| 145 | #endif
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| 146 | #ifndef ECHOCTL
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| 147 | # define ECHOCTL 0
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| 148 | #endif
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| 149 | #ifndef ECHOKE
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| 150 | # define ECHOKE 0
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| 151 | #endif
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| 152 | #ifndef ECHOPRT
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| 153 | # define ECHOPRT 0
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| 154 | #endif
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| 155 | #ifndef FFDLY
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| 156 | # define FFDLY 0
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| 157 | #endif
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| 158 | #ifndef IEXTEN
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| 159 | # define IEXTEN 0
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| 160 | #endif
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| 161 | #ifndef IMAXBEL
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| 162 | # define IMAXBEL 0
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| 163 | #endif
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| 164 | #ifndef IUCLC
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| 165 | # define IUCLC 0
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| 166 | #endif
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| 167 | #ifndef IXANY
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| 168 | # define IXANY 0
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| 169 | #endif
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| 170 | #ifndef NLDLY
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| 171 | # define NLDLY 0
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| 172 | #endif
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| 173 | #ifndef OCRNL
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| 174 | # define OCRNL 0
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| 175 | #endif
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| 176 | #ifndef OFDEL
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| 177 | # define OFDEL 0
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| 178 | #endif
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| 179 | #ifndef OFILL
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| 180 | # define OFILL 0
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| 181 | #endif
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| 182 | #ifndef OLCUC
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| 183 | # define OLCUC 0
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| 184 | #endif
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| 185 | #ifndef ONLCR
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| 186 | # define ONLCR 0
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| 187 | #endif
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| 188 | #ifndef ONLRET
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| 189 | # define ONLRET 0
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| 190 | #endif
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| 191 | #ifndef ONOCR
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| 192 | # define ONOCR 0
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| 193 | #endif
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| 194 | #ifndef OXTABS
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| 195 | # define OXTABS 0
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| 196 | #endif
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| 197 | #ifndef TABDLY
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| 198 | # define TABDLY 0
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| 199 | #endif
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| 200 | #ifndef TAB1
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| 201 | # define TAB1 0
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| 202 | #endif
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| 203 | #ifndef TAB2
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| 204 | # define TAB2 0
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| 205 | #endif
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| 206 | #ifndef TOSTOP
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| 207 | # define TOSTOP 0
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| 208 | #endif
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| 209 | #ifndef VDSUSP
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| 210 | # define VDSUSP 0
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| 211 | #endif
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| 212 | #ifndef VEOL2
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| 213 | # define VEOL2 0
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| 214 | #endif
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| 215 | #ifndef VFLUSHO
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| 216 | # define VFLUSHO 0
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| 217 | #endif
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| 218 | #ifndef VLNEXT
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| 219 | # define VLNEXT 0
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| 220 | #endif
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| 221 | #ifndef VREPRINT
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| 222 | # define VREPRINT 0
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| 223 | #endif
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| 224 | #ifndef VSTATUS
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| 225 | # define VSTATUS 0
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| 226 | #endif
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| 227 | #ifndef VSWTCH
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| 228 | # define VSWTCH 0
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| 229 | #endif
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| 230 | #ifndef VTDLY
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| 231 | # define VTDLY 0
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| 232 | #endif
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| 233 | #ifndef VWERASE
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| 234 | # define VWERASE 0
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| 235 | #endif
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| 236 | #ifndef XCASE
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| 237 | # define XCASE 0
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| 238 | #endif
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[3232] | 239 | #ifndef IUTF8
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| 240 | # define IUTF8 0
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| 241 | #endif
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[2725] | 242 |
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[1765] | 243 | /* Which speeds to set */
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[821] | 244 | enum speed_setting {
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| 245 | input_speed, output_speed, both_speeds
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| 246 | };
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| 247 |
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[1765] | 248 | /* Which member(s) of 'struct termios' a mode uses */
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| 249 | enum {
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[821] | 250 | control, input, output, local, combination
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| 251 | };
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[3621] | 252 | static tcflag_t *get_ptr_to_tcflag(unsigned type, const struct termios *mode)
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| 253 | {
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| 254 | static const uint8_t tcflag_offsets[] ALIGN1 = {
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| 255 | offsetof(struct termios, c_cflag), /* control */
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| 256 | offsetof(struct termios, c_iflag), /* input */
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| 257 | offsetof(struct termios, c_oflag), /* output */
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| 258 | offsetof(struct termios, c_lflag) /* local */
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| 259 | };
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| 260 | if (type <= local) {
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| 261 | return (tcflag_t*) (((char*)mode) + tcflag_offsets[type]);
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| 262 | }
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| 263 | return NULL;
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| 264 | }
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[821] | 265 |
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[1765] | 266 | /* Flags for 'struct mode_info' */
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| 267 | #define SANE_SET 1 /* Set in 'sane' mode */
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| 268 | #define SANE_UNSET 2 /* Unset in 'sane' mode */
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| 269 | #define REV 4 /* Can be turned off by prepending '-' */
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| 270 | #define OMIT 8 /* Don't display value */
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[821] | 271 |
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[2725] | 272 |
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| 273 | /* Each mode.
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| 274 | * This structure should be kept as small as humanly possible.
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| 275 | */
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[821] | 276 | struct mode_info {
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[2725] | 277 | const uint8_t type; /* Which structure element to change */
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| 278 | const uint8_t flags; /* Setting and display options */
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| 279 | /* only these values are ever used, so... */
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| 280 | #if (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x100
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| 281 | const uint8_t mask;
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| 282 | #elif (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x10000
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| 283 | const uint16_t mask;
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| 284 | #else
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[1765] | 285 | const tcflag_t mask; /* Other bits to turn off for this mode */
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[2725] | 286 | #endif
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| 287 | /* was using short here, but ppc32 was unhappy */
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[1765] | 288 | const tcflag_t bits; /* Bits to set for this mode */
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[821] | 289 | };
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| 290 |
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[2725] | 291 | enum {
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| 292 | /* Must match mode_name[] and mode_info[] order! */
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| 293 | IDX_evenp = 0,
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| 294 | IDX_parity,
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| 295 | IDX_oddp,
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| 296 | IDX_nl,
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| 297 | IDX_ek,
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| 298 | IDX_sane,
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| 299 | IDX_cooked,
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| 300 | IDX_raw,
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| 301 | IDX_pass8,
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| 302 | IDX_litout,
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| 303 | IDX_cbreak,
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| 304 | IDX_crt,
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| 305 | IDX_dec,
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| 306 | #if IXANY
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| 307 | IDX_decctlq,
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| 308 | #endif
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| 309 | #if TABDLY || OXTABS
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| 310 | IDX_tabs,
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| 311 | #endif
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| 312 | #if XCASE && IUCLC && OLCUC
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| 313 | IDX_lcase,
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| 314 | IDX_LCASE,
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| 315 | #endif
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| 316 | };
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[1765] | 317 |
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[2725] | 318 | #define MI_ENTRY(N,T,F,B,M) N "\0"
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[821] | 319 |
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[2725] | 320 | /* Mode names given on command line */
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[3621] | 321 | static const char mode_name[] ALIGN1 =
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[2725] | 322 | MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
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| 323 | MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
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| 324 | MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
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| 325 | MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
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| 326 | MI_ENTRY("ek", combination, OMIT, 0, 0 )
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| 327 | MI_ENTRY("sane", combination, OMIT, 0, 0 )
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| 328 | MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
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| 329 | MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
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| 330 | MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
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| 331 | MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
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| 332 | MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
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| 333 | MI_ENTRY("crt", combination, OMIT, 0, 0 )
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| 334 | MI_ENTRY("dec", combination, OMIT, 0, 0 )
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| 335 | #if IXANY
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| 336 | MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
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[821] | 337 | #endif
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[2725] | 338 | #if TABDLY || OXTABS
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| 339 | MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
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[821] | 340 | #endif
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[2725] | 341 | #if XCASE && IUCLC && OLCUC
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| 342 | MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
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| 343 | MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
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[821] | 344 | #endif
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[2725] | 345 | MI_ENTRY("parenb", control, REV, PARENB, 0 )
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| 346 | MI_ENTRY("parodd", control, REV, PARODD, 0 )
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| 347 | MI_ENTRY("cs5", control, 0, CS5, CSIZE)
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| 348 | MI_ENTRY("cs6", control, 0, CS6, CSIZE)
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| 349 | MI_ENTRY("cs7", control, 0, CS7, CSIZE)
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| 350 | MI_ENTRY("cs8", control, 0, CS8, CSIZE)
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| 351 | MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
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| 352 | MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
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| 353 | MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
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| 354 | MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
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| 355 | MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
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| 356 | #if CRTSCTS
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| 357 | MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
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[821] | 358 | #endif
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[2725] | 359 | MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
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| 360 | MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
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| 361 | MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
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| 362 | MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
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| 363 | MI_ENTRY("inpck", input, REV, INPCK, 0 )
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| 364 | MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
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| 365 | MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
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| 366 | MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
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| 367 | MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
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| 368 | MI_ENTRY("ixon", input, REV, IXON, 0 )
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| 369 | MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
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[3232] | 370 | MI_ENTRY("tandem", input, OMIT | REV, IXOFF, 0 )
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[2725] | 371 | #if IUCLC
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| 372 | MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
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[821] | 373 | #endif
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[2725] | 374 | #if IXANY
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| 375 | MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
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[821] | 376 | #endif
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[2725] | 377 | #if IMAXBEL
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| 378 | MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
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[821] | 379 | #endif
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[3232] | 380 | #if IUTF8
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| 381 | MI_ENTRY("iutf8", input, SANE_UNSET | REV, IUTF8, 0 )
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| 382 | #endif
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[2725] | 383 | MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
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| 384 | #if OLCUC
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| 385 | MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
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[821] | 386 | #endif
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[2725] | 387 | #if OCRNL
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| 388 | MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
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[821] | 389 | #endif
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[2725] | 390 | #if ONLCR
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| 391 | MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
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[821] | 392 | #endif
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[2725] | 393 | #if ONOCR
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| 394 | MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
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[821] | 395 | #endif
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[2725] | 396 | #if ONLRET
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| 397 | MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
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[821] | 398 | #endif
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[2725] | 399 | #if OFILL
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| 400 | MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
|
---|
[821] | 401 | #endif
|
---|
[2725] | 402 | #if OFDEL
|
---|
| 403 | MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
|
---|
| 404 | #endif
|
---|
| 405 | #if NLDLY
|
---|
| 406 | MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
|
---|
| 407 | MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
|
---|
| 408 | #endif
|
---|
| 409 | #if CRDLY
|
---|
| 410 | MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
|
---|
| 411 | MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
|
---|
| 412 | MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
|
---|
| 413 | MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
|
---|
| 414 | #endif
|
---|
[821] | 415 |
|
---|
[2725] | 416 | #if TABDLY
|
---|
| 417 | MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
|
---|
| 418 | # if TAB2
|
---|
| 419 | MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
|
---|
| 420 | # endif
|
---|
| 421 | # if TAB1
|
---|
| 422 | MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
|
---|
| 423 | # endif
|
---|
| 424 | MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
|
---|
[821] | 425 | #else
|
---|
[2725] | 426 | # if OXTABS
|
---|
| 427 | MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
|
---|
[821] | 428 | # endif
|
---|
| 429 | #endif
|
---|
| 430 |
|
---|
[2725] | 431 | #if BSDLY
|
---|
| 432 | MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
|
---|
| 433 | MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
|
---|
[821] | 434 | #endif
|
---|
[2725] | 435 | #if VTDLY
|
---|
| 436 | MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
|
---|
| 437 | MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
|
---|
[821] | 438 | #endif
|
---|
[2725] | 439 | #if FFDLY
|
---|
| 440 | MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
|
---|
| 441 | MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
|
---|
[821] | 442 | #endif
|
---|
[2725] | 443 | MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
|
---|
| 444 | MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
|
---|
| 445 | #if IEXTEN
|
---|
| 446 | MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
|
---|
[821] | 447 | #endif
|
---|
[2725] | 448 | MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
|
---|
| 449 | MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
|
---|
[3232] | 450 | MI_ENTRY("crterase", local, OMIT | REV, ECHOE, 0 )
|
---|
[2725] | 451 | MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
|
---|
| 452 | MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
|
---|
| 453 | MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
|
---|
| 454 | #if XCASE
|
---|
| 455 | MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
|
---|
[821] | 456 | #endif
|
---|
[2725] | 457 | #if TOSTOP
|
---|
| 458 | MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
|
---|
[821] | 459 | #endif
|
---|
[2725] | 460 | #if ECHOPRT
|
---|
| 461 | MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
|
---|
[3232] | 462 | MI_ENTRY("prterase", local, OMIT | REV, ECHOPRT, 0 )
|
---|
[821] | 463 | #endif
|
---|
[2725] | 464 | #if ECHOCTL
|
---|
| 465 | MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
|
---|
[3232] | 466 | MI_ENTRY("ctlecho", local, OMIT | REV, ECHOCTL, 0 )
|
---|
[821] | 467 | #endif
|
---|
[2725] | 468 | #if ECHOKE
|
---|
| 469 | MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
|
---|
[3232] | 470 | MI_ENTRY("crtkill", local, OMIT | REV, ECHOKE, 0 )
|
---|
[821] | 471 | #endif
|
---|
[2725] | 472 | ;
|
---|
| 473 |
|
---|
| 474 | #undef MI_ENTRY
|
---|
| 475 | #define MI_ENTRY(N,T,F,B,M) { T, F, M, B },
|
---|
| 476 |
|
---|
| 477 | static const struct mode_info mode_info[] = {
|
---|
| 478 | /* This should be verbatim cut-n-paste copy of the above MI_ENTRYs */
|
---|
| 479 | MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
|
---|
| 480 | MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
|
---|
| 481 | MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
|
---|
| 482 | MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
|
---|
| 483 | MI_ENTRY("ek", combination, OMIT, 0, 0 )
|
---|
| 484 | MI_ENTRY("sane", combination, OMIT, 0, 0 )
|
---|
| 485 | MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
|
---|
| 486 | MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
|
---|
| 487 | MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
|
---|
| 488 | MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
|
---|
| 489 | MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
|
---|
| 490 | MI_ENTRY("crt", combination, OMIT, 0, 0 )
|
---|
| 491 | MI_ENTRY("dec", combination, OMIT, 0, 0 )
|
---|
| 492 | #if IXANY
|
---|
| 493 | MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
|
---|
[821] | 494 | #endif
|
---|
[2725] | 495 | #if TABDLY || OXTABS
|
---|
| 496 | MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
|
---|
[821] | 497 | #endif
|
---|
[2725] | 498 | #if XCASE && IUCLC && OLCUC
|
---|
| 499 | MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
|
---|
| 500 | MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
|
---|
[821] | 501 | #endif
|
---|
[2725] | 502 | MI_ENTRY("parenb", control, REV, PARENB, 0 )
|
---|
| 503 | MI_ENTRY("parodd", control, REV, PARODD, 0 )
|
---|
| 504 | MI_ENTRY("cs5", control, 0, CS5, CSIZE)
|
---|
| 505 | MI_ENTRY("cs6", control, 0, CS6, CSIZE)
|
---|
| 506 | MI_ENTRY("cs7", control, 0, CS7, CSIZE)
|
---|
| 507 | MI_ENTRY("cs8", control, 0, CS8, CSIZE)
|
---|
| 508 | MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
|
---|
| 509 | MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
|
---|
| 510 | MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
|
---|
| 511 | MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
|
---|
| 512 | MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
|
---|
| 513 | #if CRTSCTS
|
---|
| 514 | MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
|
---|
| 515 | #endif
|
---|
| 516 | MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
|
---|
| 517 | MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
|
---|
| 518 | MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
|
---|
| 519 | MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
|
---|
| 520 | MI_ENTRY("inpck", input, REV, INPCK, 0 )
|
---|
| 521 | MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
|
---|
| 522 | MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
|
---|
| 523 | MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
|
---|
| 524 | MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
|
---|
| 525 | MI_ENTRY("ixon", input, REV, IXON, 0 )
|
---|
| 526 | MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
|
---|
[3232] | 527 | MI_ENTRY("tandem", input, OMIT | REV, IXOFF, 0 )
|
---|
[2725] | 528 | #if IUCLC
|
---|
| 529 | MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
|
---|
| 530 | #endif
|
---|
| 531 | #if IXANY
|
---|
| 532 | MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
|
---|
| 533 | #endif
|
---|
| 534 | #if IMAXBEL
|
---|
| 535 | MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
|
---|
| 536 | #endif
|
---|
[3232] | 537 | #if IUTF8
|
---|
| 538 | MI_ENTRY("iutf8", input, SANE_UNSET | REV, IUTF8, 0 )
|
---|
| 539 | #endif
|
---|
[2725] | 540 | MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
|
---|
| 541 | #if OLCUC
|
---|
| 542 | MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
|
---|
| 543 | #endif
|
---|
| 544 | #if OCRNL
|
---|
| 545 | MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
|
---|
| 546 | #endif
|
---|
| 547 | #if ONLCR
|
---|
| 548 | MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
|
---|
| 549 | #endif
|
---|
| 550 | #if ONOCR
|
---|
| 551 | MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
|
---|
| 552 | #endif
|
---|
| 553 | #if ONLRET
|
---|
| 554 | MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
|
---|
| 555 | #endif
|
---|
| 556 | #if OFILL
|
---|
| 557 | MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
|
---|
| 558 | #endif
|
---|
| 559 | #if OFDEL
|
---|
| 560 | MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
|
---|
| 561 | #endif
|
---|
| 562 | #if NLDLY
|
---|
| 563 | MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
|
---|
| 564 | MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
|
---|
| 565 | #endif
|
---|
| 566 | #if CRDLY
|
---|
| 567 | MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
|
---|
| 568 | MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
|
---|
| 569 | MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
|
---|
| 570 | MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
|
---|
| 571 | #endif
|
---|
| 572 |
|
---|
| 573 | #if TABDLY
|
---|
| 574 | MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
|
---|
| 575 | # if TAB2
|
---|
| 576 | MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
|
---|
| 577 | # endif
|
---|
| 578 | # if TAB1
|
---|
| 579 | MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
|
---|
| 580 | # endif
|
---|
| 581 | MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
|
---|
| 582 | #else
|
---|
| 583 | # if OXTABS
|
---|
| 584 | MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
|
---|
| 585 | # endif
|
---|
| 586 | #endif
|
---|
| 587 |
|
---|
| 588 | #if BSDLY
|
---|
| 589 | MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
|
---|
| 590 | MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
|
---|
| 591 | #endif
|
---|
| 592 | #if VTDLY
|
---|
| 593 | MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
|
---|
| 594 | MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
|
---|
| 595 | #endif
|
---|
| 596 | #if FFDLY
|
---|
| 597 | MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
|
---|
| 598 | MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
|
---|
| 599 | #endif
|
---|
| 600 | MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
|
---|
| 601 | MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
|
---|
| 602 | #if IEXTEN
|
---|
| 603 | MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
|
---|
| 604 | #endif
|
---|
| 605 | MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
|
---|
| 606 | MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
|
---|
[3232] | 607 | MI_ENTRY("crterase", local, OMIT | REV, ECHOE, 0 )
|
---|
[2725] | 608 | MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
|
---|
| 609 | MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
|
---|
| 610 | MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
|
---|
| 611 | #if XCASE
|
---|
| 612 | MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
|
---|
| 613 | #endif
|
---|
| 614 | #if TOSTOP
|
---|
| 615 | MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
|
---|
| 616 | #endif
|
---|
| 617 | #if ECHOPRT
|
---|
| 618 | MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
|
---|
[3232] | 619 | MI_ENTRY("prterase", local, OMIT | REV, ECHOPRT, 0 )
|
---|
[2725] | 620 | #endif
|
---|
| 621 | #if ECHOCTL
|
---|
| 622 | MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
|
---|
[3232] | 623 | MI_ENTRY("ctlecho", local, OMIT | REV, ECHOCTL, 0 )
|
---|
[2725] | 624 | #endif
|
---|
| 625 | #if ECHOKE
|
---|
| 626 | MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
|
---|
[3232] | 627 | MI_ENTRY("crtkill", local, OMIT | REV, ECHOKE, 0 )
|
---|
[2725] | 628 | #endif
|
---|
[821] | 629 | };
|
---|
| 630 |
|
---|
| 631 | enum {
|
---|
[1765] | 632 | NUM_mode_info = ARRAY_SIZE(mode_info)
|
---|
[821] | 633 | };
|
---|
| 634 |
|
---|
[2725] | 635 |
|
---|
| 636 | /* Control characters */
|
---|
[821] | 637 | struct control_info {
|
---|
[2725] | 638 | const uint8_t saneval; /* Value to set for 'stty sane' */
|
---|
| 639 | const uint8_t offset; /* Offset in c_cc */
|
---|
[821] | 640 | };
|
---|
| 641 |
|
---|
[2725] | 642 | enum {
|
---|
| 643 | /* Must match control_name[] and control_info[] order! */
|
---|
| 644 | CIDX_intr = 0,
|
---|
| 645 | CIDX_quit,
|
---|
| 646 | CIDX_erase,
|
---|
| 647 | CIDX_kill,
|
---|
| 648 | CIDX_eof,
|
---|
| 649 | CIDX_eol,
|
---|
| 650 | #if VEOL2
|
---|
| 651 | CIDX_eol2,
|
---|
| 652 | #endif
|
---|
| 653 | #if VSWTCH
|
---|
| 654 | CIDX_swtch,
|
---|
| 655 | #endif
|
---|
| 656 | CIDX_start,
|
---|
| 657 | CIDX_stop,
|
---|
| 658 | CIDX_susp,
|
---|
| 659 | #if VDSUSP
|
---|
| 660 | CIDX_dsusp,
|
---|
| 661 | #endif
|
---|
| 662 | #if VREPRINT
|
---|
| 663 | CIDX_rprnt,
|
---|
| 664 | #endif
|
---|
| 665 | #if VWERASE
|
---|
| 666 | CIDX_werase,
|
---|
| 667 | #endif
|
---|
| 668 | #if VLNEXT
|
---|
| 669 | CIDX_lnext,
|
---|
| 670 | #endif
|
---|
| 671 | #if VFLUSHO
|
---|
| 672 | CIDX_flush,
|
---|
| 673 | #endif
|
---|
| 674 | #if VSTATUS
|
---|
| 675 | CIDX_status,
|
---|
| 676 | #endif
|
---|
| 677 | CIDX_min,
|
---|
| 678 | CIDX_time,
|
---|
| 679 | };
|
---|
[821] | 680 |
|
---|
[2725] | 681 | #define CI_ENTRY(n,s,o) n "\0"
|
---|
| 682 |
|
---|
| 683 | /* Name given on command line */
|
---|
[3621] | 684 | static const char control_name[] ALIGN1 =
|
---|
[2725] | 685 | CI_ENTRY("intr", CINTR, VINTR )
|
---|
| 686 | CI_ENTRY("quit", CQUIT, VQUIT )
|
---|
| 687 | CI_ENTRY("erase", CERASE, VERASE )
|
---|
| 688 | CI_ENTRY("kill", CKILL, VKILL )
|
---|
| 689 | CI_ENTRY("eof", CEOF, VEOF )
|
---|
| 690 | CI_ENTRY("eol", CEOL, VEOL )
|
---|
| 691 | #if VEOL2
|
---|
| 692 | CI_ENTRY("eol2", CEOL2, VEOL2 )
|
---|
| 693 | #endif
|
---|
| 694 | #if VSWTCH
|
---|
| 695 | CI_ENTRY("swtch", CSWTCH, VSWTCH )
|
---|
| 696 | #endif
|
---|
| 697 | CI_ENTRY("start", CSTART, VSTART )
|
---|
| 698 | CI_ENTRY("stop", CSTOP, VSTOP )
|
---|
| 699 | CI_ENTRY("susp", CSUSP, VSUSP )
|
---|
| 700 | #if VDSUSP
|
---|
| 701 | CI_ENTRY("dsusp", CDSUSP, VDSUSP )
|
---|
| 702 | #endif
|
---|
| 703 | #if VREPRINT
|
---|
| 704 | CI_ENTRY("rprnt", CRPRNT, VREPRINT)
|
---|
| 705 | #endif
|
---|
| 706 | #if VWERASE
|
---|
| 707 | CI_ENTRY("werase", CWERASE, VWERASE )
|
---|
| 708 | #endif
|
---|
| 709 | #if VLNEXT
|
---|
| 710 | CI_ENTRY("lnext", CLNEXT, VLNEXT )
|
---|
| 711 | #endif
|
---|
| 712 | #if VFLUSHO
|
---|
| 713 | CI_ENTRY("flush", CFLUSHO, VFLUSHO )
|
---|
| 714 | #endif
|
---|
| 715 | #if VSTATUS
|
---|
| 716 | CI_ENTRY("status", CSTATUS, VSTATUS )
|
---|
| 717 | #endif
|
---|
| 718 | /* These must be last because of the display routines */
|
---|
| 719 | CI_ENTRY("min", 1, VMIN )
|
---|
| 720 | CI_ENTRY("time", 0, VTIME )
|
---|
| 721 | ;
|
---|
| 722 |
|
---|
| 723 | #undef CI_ENTRY
|
---|
| 724 | #define CI_ENTRY(n,s,o) { s, o },
|
---|
| 725 |
|
---|
[3621] | 726 | static const struct control_info control_info[] ALIGN2 = {
|
---|
[2725] | 727 | /* This should be verbatim cut-n-paste copy of the above CI_ENTRYs */
|
---|
| 728 | CI_ENTRY("intr", CINTR, VINTR )
|
---|
| 729 | CI_ENTRY("quit", CQUIT, VQUIT )
|
---|
| 730 | CI_ENTRY("erase", CERASE, VERASE )
|
---|
| 731 | CI_ENTRY("kill", CKILL, VKILL )
|
---|
| 732 | CI_ENTRY("eof", CEOF, VEOF )
|
---|
| 733 | CI_ENTRY("eol", CEOL, VEOL )
|
---|
| 734 | #if VEOL2
|
---|
| 735 | CI_ENTRY("eol2", CEOL2, VEOL2 )
|
---|
[821] | 736 | #endif
|
---|
[2725] | 737 | #if VSWTCH
|
---|
| 738 | CI_ENTRY("swtch", CSWTCH, VSWTCH )
|
---|
[821] | 739 | #endif
|
---|
[2725] | 740 | CI_ENTRY("start", CSTART, VSTART )
|
---|
| 741 | CI_ENTRY("stop", CSTOP, VSTOP )
|
---|
| 742 | CI_ENTRY("susp", CSUSP, VSUSP )
|
---|
| 743 | #if VDSUSP
|
---|
| 744 | CI_ENTRY("dsusp", CDSUSP, VDSUSP )
|
---|
[821] | 745 | #endif
|
---|
[2725] | 746 | #if VREPRINT
|
---|
| 747 | CI_ENTRY("rprnt", CRPRNT, VREPRINT)
|
---|
[821] | 748 | #endif
|
---|
[2725] | 749 | #if VWERASE
|
---|
| 750 | CI_ENTRY("werase", CWERASE, VWERASE )
|
---|
[821] | 751 | #endif
|
---|
[2725] | 752 | #if VLNEXT
|
---|
| 753 | CI_ENTRY("lnext", CLNEXT, VLNEXT )
|
---|
[821] | 754 | #endif
|
---|
[2725] | 755 | #if VFLUSHO
|
---|
| 756 | CI_ENTRY("flush", CFLUSHO, VFLUSHO )
|
---|
[821] | 757 | #endif
|
---|
[2725] | 758 | #if VSTATUS
|
---|
| 759 | CI_ENTRY("status", CSTATUS, VSTATUS )
|
---|
[821] | 760 | #endif
|
---|
[1765] | 761 | /* These must be last because of the display routines */
|
---|
[2725] | 762 | CI_ENTRY("min", 1, VMIN )
|
---|
| 763 | CI_ENTRY("time", 0, VTIME )
|
---|
[821] | 764 | };
|
---|
| 765 |
|
---|
| 766 | enum {
|
---|
[1765] | 767 | NUM_control_info = ARRAY_SIZE(control_info)
|
---|
[821] | 768 | };
|
---|
| 769 |
|
---|
| 770 |
|
---|
[1765] | 771 | struct globals {
|
---|
[2725] | 772 | const char *device_name;
|
---|
| 773 | /* The width of the screen, for output wrapping */
|
---|
| 774 | unsigned max_col;
|
---|
[1765] | 775 | /* Current position, to know when to wrap */
|
---|
| 776 | unsigned current_col;
|
---|
| 777 | char buf[10];
|
---|
[2725] | 778 | } FIX_ALIASING;
|
---|
[3621] | 779 | #define G (*(struct globals*)bb_common_bufsiz1)
|
---|
[2725] | 780 | #define INIT_G() do { \
|
---|
| 781 | G.device_name = bb_msg_standard_input; \
|
---|
| 782 | G.max_col = 80; \
|
---|
| 783 | } while (0)
|
---|
[821] | 784 |
|
---|
[2725] | 785 | static void set_speed_or_die(enum speed_setting type, const char *arg,
|
---|
| 786 | struct termios *mode)
|
---|
[821] | 787 | {
|
---|
| 788 | speed_t baud;
|
---|
| 789 |
|
---|
[1765] | 790 | baud = tty_value_to_baud(xatou(arg));
|
---|
[821] | 791 |
|
---|
| 792 | if (type != output_speed) { /* either input or both */
|
---|
| 793 | cfsetispeed(mode, baud);
|
---|
| 794 | }
|
---|
| 795 | if (type != input_speed) { /* either output or both */
|
---|
| 796 | cfsetospeed(mode, baud);
|
---|
| 797 | }
|
---|
| 798 | }
|
---|
| 799 |
|
---|
[2725] | 800 | static NORETURN void perror_on_device_and_die(const char *fmt)
|
---|
[1765] | 801 | {
|
---|
[2725] | 802 | bb_perror_msg_and_die(fmt, G.device_name);
|
---|
[1765] | 803 | }
|
---|
[821] | 804 |
|
---|
[1765] | 805 | static void perror_on_device(const char *fmt)
|
---|
[821] | 806 | {
|
---|
[2725] | 807 | bb_perror_msg(fmt, G.device_name);
|
---|
[1765] | 808 | }
|
---|
[821] | 809 |
|
---|
[1765] | 810 | /* Print format string MESSAGE and optional args.
|
---|
| 811 | Wrap to next line first if it won't fit.
|
---|
| 812 | Print a space first unless MESSAGE will start a new line */
|
---|
| 813 | static void wrapf(const char *message, ...)
|
---|
| 814 | {
|
---|
| 815 | char buf[128];
|
---|
| 816 | va_list args;
|
---|
[2725] | 817 | unsigned buflen;
|
---|
[1765] | 818 |
|
---|
| 819 | va_start(args, message);
|
---|
| 820 | buflen = vsnprintf(buf, sizeof(buf), message, args);
|
---|
| 821 | va_end(args);
|
---|
| 822 | /* We seem to be called only with suitable lengths, but check if
|
---|
| 823 | somebody failed to adhere to this assumption just to be sure. */
|
---|
| 824 | if (!buflen || buflen >= sizeof(buf)) return;
|
---|
| 825 |
|
---|
| 826 | if (G.current_col > 0) {
|
---|
| 827 | G.current_col++;
|
---|
| 828 | if (buf[0] != '\n') {
|
---|
[2725] | 829 | if (G.current_col + buflen >= G.max_col) {
|
---|
| 830 | bb_putchar('\n');
|
---|
[1765] | 831 | G.current_col = 0;
|
---|
| 832 | } else
|
---|
[2725] | 833 | bb_putchar(' ');
|
---|
[1765] | 834 | }
|
---|
| 835 | }
|
---|
| 836 | fputs(buf, stdout);
|
---|
| 837 | G.current_col += buflen;
|
---|
| 838 | if (buf[buflen-1] == '\n')
|
---|
| 839 | G.current_col = 0;
|
---|
[821] | 840 | }
|
---|
| 841 |
|
---|
[2725] | 842 | static void newline(void)
|
---|
[821] | 843 | {
|
---|
[2725] | 844 | if (G.current_col != 0)
|
---|
| 845 | wrapf("\n");
|
---|
| 846 | }
|
---|
[821] | 847 |
|
---|
[2725] | 848 | #ifdef TIOCGWINSZ
|
---|
| 849 | static void set_window_size(int rows, int cols)
|
---|
| 850 | {
|
---|
| 851 | struct winsize win = { 0, 0, 0, 0 };
|
---|
| 852 |
|
---|
[1765] | 853 | if (ioctl(STDIN_FILENO, TIOCGWINSZ, &win)) {
|
---|
| 854 | if (errno != EINVAL) {
|
---|
| 855 | goto bail;
|
---|
| 856 | }
|
---|
[821] | 857 | memset(&win, 0, sizeof(win));
|
---|
| 858 | }
|
---|
| 859 |
|
---|
| 860 | if (rows >= 0)
|
---|
| 861 | win.ws_row = rows;
|
---|
| 862 | if (cols >= 0)
|
---|
| 863 | win.ws_col = cols;
|
---|
| 864 |
|
---|
| 865 | if (ioctl(STDIN_FILENO, TIOCSWINSZ, (char *) &win))
|
---|
[1765] | 866 | bail:
|
---|
[821] | 867 | perror_on_device("%s");
|
---|
| 868 | }
|
---|
[2725] | 869 | #endif
|
---|
[821] | 870 |
|
---|
[2725] | 871 | static void display_window_size(int fancy)
|
---|
[821] | 872 | {
|
---|
[1765] | 873 | const char *fmt_str = "%s\0%s: no size information for this device";
|
---|
| 874 | unsigned width, height;
|
---|
[821] | 875 |
|
---|
[1765] | 876 | if (get_terminal_width_height(STDIN_FILENO, &width, &height)) {
|
---|
[821] | 877 | if ((errno != EINVAL) || ((fmt_str += 2), !fancy)) {
|
---|
| 878 | perror_on_device(fmt_str);
|
---|
| 879 | }
|
---|
| 880 | } else {
|
---|
[2725] | 881 | wrapf(fancy ? "rows %u; columns %u;" : "%u %u\n",
|
---|
[1765] | 882 | height, width);
|
---|
[821] | 883 | }
|
---|
| 884 | }
|
---|
| 885 |
|
---|
[1765] | 886 | static const struct suffix_mult stty_suffixes[] = {
|
---|
| 887 | { "b", 512 },
|
---|
| 888 | { "k", 1024 },
|
---|
| 889 | { "B", 1024 },
|
---|
[2725] | 890 | { "", 0 }
|
---|
[1765] | 891 | };
|
---|
| 892 |
|
---|
| 893 | static const struct mode_info *find_mode(const char *name)
|
---|
[821] | 894 | {
|
---|
[2725] | 895 | int i = index_in_strings(mode_name, name);
|
---|
| 896 | return i >= 0 ? &mode_info[i] : NULL;
|
---|
[1765] | 897 | }
|
---|
[821] | 898 |
|
---|
[1765] | 899 | static const struct control_info *find_control(const char *name)
|
---|
| 900 | {
|
---|
[2725] | 901 | int i = index_in_strings(control_name, name);
|
---|
| 902 | return i >= 0 ? &control_info[i] : NULL;
|
---|
[1765] | 903 | }
|
---|
[821] | 904 |
|
---|
[1765] | 905 | enum {
|
---|
| 906 | param_need_arg = 0x80,
|
---|
| 907 | param_line = 1 | 0x80,
|
---|
| 908 | param_rows = 2 | 0x80,
|
---|
| 909 | param_cols = 3 | 0x80,
|
---|
| 910 | param_columns = 4 | 0x80,
|
---|
| 911 | param_size = 5,
|
---|
| 912 | param_speed = 6,
|
---|
| 913 | param_ispeed = 7 | 0x80,
|
---|
| 914 | param_ospeed = 8 | 0x80,
|
---|
| 915 | };
|
---|
[821] | 916 |
|
---|
[2725] | 917 | static int find_param(const char *name)
|
---|
[1765] | 918 | {
|
---|
| 919 | static const char params[] ALIGN1 =
|
---|
| 920 | "line\0" /* 1 */
|
---|
| 921 | "rows\0" /* 2 */
|
---|
| 922 | "cols\0" /* 3 */
|
---|
| 923 | "columns\0" /* 4 */
|
---|
| 924 | "size\0" /* 5 */
|
---|
| 925 | "speed\0" /* 6 */
|
---|
| 926 | "ispeed\0"
|
---|
| 927 | "ospeed\0";
|
---|
| 928 | int i = index_in_strings(params, name) + 1;
|
---|
| 929 | if (i == 0)
|
---|
| 930 | return 0;
|
---|
| 931 | if (i != 5 && i != 6)
|
---|
| 932 | i |= 0x80;
|
---|
| 933 | return i;
|
---|
| 934 | }
|
---|
| 935 |
|
---|
| 936 | static int recover_mode(const char *arg, struct termios *mode)
|
---|
| 937 | {
|
---|
| 938 | int i, n;
|
---|
| 939 | unsigned chr;
|
---|
| 940 | unsigned long iflag, oflag, cflag, lflag;
|
---|
| 941 |
|
---|
| 942 | /* Scan into temporaries since it is too much trouble to figure out
|
---|
| 943 | the right format for 'tcflag_t' */
|
---|
| 944 | if (sscanf(arg, "%lx:%lx:%lx:%lx%n",
|
---|
| 945 | &iflag, &oflag, &cflag, &lflag, &n) != 4)
|
---|
| 946 | return 0;
|
---|
| 947 | mode->c_iflag = iflag;
|
---|
| 948 | mode->c_oflag = oflag;
|
---|
| 949 | mode->c_cflag = cflag;
|
---|
| 950 | mode->c_lflag = lflag;
|
---|
| 951 | arg += n;
|
---|
| 952 | for (i = 0; i < NCCS; ++i) {
|
---|
| 953 | if (sscanf(arg, ":%x%n", &chr, &n) != 1)
|
---|
| 954 | return 0;
|
---|
| 955 | mode->c_cc[i] = chr;
|
---|
| 956 | arg += n;
|
---|
[821] | 957 | }
|
---|
[1765] | 958 |
|
---|
| 959 | /* Fail if there are too many fields */
|
---|
| 960 | if (*arg != '\0')
|
---|
| 961 | return 0;
|
---|
| 962 |
|
---|
| 963 | return 1;
|
---|
[821] | 964 | }
|
---|
| 965 |
|
---|
[1765] | 966 | static void display_recoverable(const struct termios *mode,
|
---|
[2725] | 967 | int UNUSED_PARAM dummy)
|
---|
[821] | 968 | {
|
---|
[1765] | 969 | int i;
|
---|
| 970 | printf("%lx:%lx:%lx:%lx",
|
---|
| 971 | (unsigned long) mode->c_iflag, (unsigned long) mode->c_oflag,
|
---|
| 972 | (unsigned long) mode->c_cflag, (unsigned long) mode->c_lflag);
|
---|
| 973 | for (i = 0; i < NCCS; ++i)
|
---|
| 974 | printf(":%x", (unsigned int) mode->c_cc[i]);
|
---|
[2725] | 975 | bb_putchar('\n');
|
---|
[1765] | 976 | }
|
---|
[821] | 977 |
|
---|
[1765] | 978 | static void display_speed(const struct termios *mode, int fancy)
|
---|
| 979 | {
|
---|
[2725] | 980 | //____________________ 01234567 8 9
|
---|
[1765] | 981 | const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;";
|
---|
| 982 | unsigned long ispeed, ospeed;
|
---|
| 983 |
|
---|
[3232] | 984 | ispeed = cfgetispeed(mode);
|
---|
| 985 | ospeed = cfgetospeed(mode);
|
---|
| 986 | if (ispeed == 0 || ispeed == ospeed) {
|
---|
[1765] | 987 | ispeed = ospeed; /* in case ispeed was 0 */
|
---|
[2725] | 988 | //________ 0123 4 5 6 7 8 9
|
---|
[1765] | 989 | fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;";
|
---|
[821] | 990 | }
|
---|
[1765] | 991 | if (fancy) fmt_str += 9;
|
---|
| 992 | wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed));
|
---|
[821] | 993 | }
|
---|
| 994 |
|
---|
[2725] | 995 | static void do_display(const struct termios *mode, int all)
|
---|
[821] | 996 | {
|
---|
| 997 | int i;
|
---|
| 998 | tcflag_t *bitsp;
|
---|
| 999 | unsigned long mask;
|
---|
[1765] | 1000 | int prev_type = control;
|
---|
[821] | 1001 |
|
---|
| 1002 | display_speed(mode, 1);
|
---|
[1765] | 1003 | if (all)
|
---|
| 1004 | display_window_size(1);
|
---|
[3232] | 1005 | #ifdef __linux__
|
---|
[2725] | 1006 | wrapf("line = %u;\n", mode->c_line);
|
---|
[1765] | 1007 | #else
|
---|
[2725] | 1008 | newline();
|
---|
[821] | 1009 | #endif
|
---|
| 1010 |
|
---|
[2725] | 1011 | for (i = 0; i != CIDX_min; ++i) {
|
---|
[3621] | 1012 | char ch;
|
---|
[1765] | 1013 | /* If swtch is the same as susp, don't print both */
|
---|
[821] | 1014 | #if VSWTCH == VSUSP
|
---|
[2725] | 1015 | if (i == CIDX_swtch)
|
---|
[821] | 1016 | continue;
|
---|
| 1017 | #endif
|
---|
[1765] | 1018 | /* If eof uses the same slot as min, only print whichever applies */
|
---|
[821] | 1019 | #if VEOF == VMIN
|
---|
[2725] | 1020 | if (!(mode->c_lflag & ICANON)
|
---|
| 1021 | && (i == CIDX_eof || i == CIDX_eol)
|
---|
| 1022 | ) {
|
---|
| 1023 | continue;
|
---|
| 1024 | }
|
---|
[821] | 1025 | #endif
|
---|
[3621] | 1026 | ch = mode->c_cc[control_info[i].offset];
|
---|
| 1027 | if (ch == _POSIX_VDISABLE)
|
---|
| 1028 | strcpy(G.buf, "<undef>");
|
---|
| 1029 | else
|
---|
| 1030 | visible(ch, G.buf, 0);
|
---|
| 1031 | wrapf("%s = %s;", nth_string(control_name, i), G.buf);
|
---|
[821] | 1032 | }
|
---|
[1765] | 1033 | #if VEOF == VMIN
|
---|
| 1034 | if ((mode->c_lflag & ICANON) == 0)
|
---|
| 1035 | #endif
|
---|
[2725] | 1036 | wrapf("min = %u; time = %u;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
|
---|
| 1037 | newline();
|
---|
[821] | 1038 |
|
---|
| 1039 | for (i = 0; i < NUM_mode_info; ++i) {
|
---|
| 1040 | if (mode_info[i].flags & OMIT)
|
---|
| 1041 | continue;
|
---|
[1765] | 1042 | if (mode_info[i].type != prev_type) {
|
---|
[2725] | 1043 | newline();
|
---|
[1765] | 1044 | prev_type = mode_info[i].type;
|
---|
[821] | 1045 | }
|
---|
| 1046 |
|
---|
[3621] | 1047 | bitsp = get_ptr_to_tcflag(mode_info[i].type, mode);
|
---|
[821] | 1048 | mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits;
|
---|
| 1049 | if ((*bitsp & mask) == mode_info[i].bits) {
|
---|
[1765] | 1050 | if (all || (mode_info[i].flags & SANE_UNSET))
|
---|
[2725] | 1051 | wrapf("-%s"+1, nth_string(mode_name, i));
|
---|
[1765] | 1052 | } else {
|
---|
[2725] | 1053 | if ((all && mode_info[i].flags & REV)
|
---|
| 1054 | || (!all && (mode_info[i].flags & (SANE_SET | REV)) == (SANE_SET | REV))
|
---|
| 1055 | ) {
|
---|
| 1056 | wrapf("-%s", nth_string(mode_name, i));
|
---|
| 1057 | }
|
---|
[821] | 1058 | }
|
---|
| 1059 | }
|
---|
[2725] | 1060 | newline();
|
---|
[821] | 1061 | }
|
---|
| 1062 |
|
---|
[1765] | 1063 | static void sane_mode(struct termios *mode)
|
---|
[821] | 1064 | {
|
---|
| 1065 | int i;
|
---|
| 1066 |
|
---|
[1765] | 1067 | for (i = 0; i < NUM_control_info; ++i) {
|
---|
| 1068 | #if VMIN == VEOF
|
---|
[2725] | 1069 | if (i == CIDX_min)
|
---|
[1765] | 1070 | break;
|
---|
[821] | 1071 | #endif
|
---|
[1765] | 1072 | mode->c_cc[control_info[i].offset] = control_info[i].saneval;
|
---|
[821] | 1073 | }
|
---|
| 1074 |
|
---|
| 1075 | for (i = 0; i < NUM_mode_info; ++i) {
|
---|
[3621] | 1076 | tcflag_t val;
|
---|
| 1077 | tcflag_t *bitsp = get_ptr_to_tcflag(mode_info[i].type, mode);
|
---|
| 1078 |
|
---|
| 1079 | if (!bitsp)
|
---|
| 1080 | continue;
|
---|
| 1081 | val = *bitsp & ~((unsigned long)mode_info[i].mask);
|
---|
[1765] | 1082 | if (mode_info[i].flags & SANE_SET) {
|
---|
[3621] | 1083 | *bitsp = val | mode_info[i].bits;
|
---|
| 1084 | } else
|
---|
| 1085 | if (mode_info[i].flags & SANE_UNSET) {
|
---|
| 1086 | *bitsp = val & ~mode_info[i].bits;
|
---|
[821] | 1087 | }
|
---|
| 1088 | }
|
---|
| 1089 | }
|
---|
| 1090 |
|
---|
[1765] | 1091 | static void set_mode(const struct mode_info *info, int reversed,
|
---|
| 1092 | struct termios *mode)
|
---|
[821] | 1093 | {
|
---|
[1765] | 1094 | tcflag_t *bitsp;
|
---|
[821] | 1095 |
|
---|
[3621] | 1096 | bitsp = get_ptr_to_tcflag(info->type, mode);
|
---|
[1765] | 1097 |
|
---|
| 1098 | if (bitsp) {
|
---|
[3621] | 1099 | tcflag_t val = *bitsp & ~info->mask;
|
---|
[1765] | 1100 | if (reversed)
|
---|
[3621] | 1101 | *bitsp = val & ~info->bits;
|
---|
[1765] | 1102 | else
|
---|
[3621] | 1103 | *bitsp = val | info->bits;
|
---|
[1765] | 1104 | return;
|
---|
[821] | 1105 | }
|
---|
[1765] | 1106 |
|
---|
[3621] | 1107 | /* !bitsp - it's a "combination" mode */
|
---|
[2725] | 1108 | if (info == &mode_info[IDX_evenp] || info == &mode_info[IDX_parity]) {
|
---|
[1765] | 1109 | if (reversed)
|
---|
| 1110 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1111 | else
|
---|
[2725] | 1112 | mode->c_cflag = (mode->c_cflag & ~PARODD & ~CSIZE) | PARENB | CS7;
|
---|
| 1113 | } else if (info == &mode_info[IDX_oddp]) {
|
---|
[1765] | 1114 | if (reversed)
|
---|
| 1115 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1116 | else
|
---|
[2725] | 1117 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARODD | PARENB;
|
---|
| 1118 | } else if (info == &mode_info[IDX_nl]) {
|
---|
[1765] | 1119 | if (reversed) {
|
---|
| 1120 | mode->c_iflag = (mode->c_iflag | ICRNL) & ~INLCR & ~IGNCR;
|
---|
[2725] | 1121 | mode->c_oflag = (mode->c_oflag | ONLCR) & ~OCRNL & ~ONLRET;
|
---|
[1765] | 1122 | } else {
|
---|
| 1123 | mode->c_iflag = mode->c_iflag & ~ICRNL;
|
---|
| 1124 | if (ONLCR) mode->c_oflag = mode->c_oflag & ~ONLCR;
|
---|
| 1125 | }
|
---|
[2725] | 1126 | } else if (info == &mode_info[IDX_ek]) {
|
---|
[1765] | 1127 | mode->c_cc[VERASE] = CERASE;
|
---|
| 1128 | mode->c_cc[VKILL] = CKILL;
|
---|
[2725] | 1129 | } else if (info == &mode_info[IDX_sane]) {
|
---|
[1765] | 1130 | sane_mode(mode);
|
---|
[2725] | 1131 | } else if (info == &mode_info[IDX_cbreak]) {
|
---|
[1765] | 1132 | if (reversed)
|
---|
| 1133 | mode->c_lflag |= ICANON;
|
---|
| 1134 | else
|
---|
| 1135 | mode->c_lflag &= ~ICANON;
|
---|
[2725] | 1136 | } else if (info == &mode_info[IDX_pass8]) {
|
---|
[1765] | 1137 | if (reversed) {
|
---|
| 1138 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
|
---|
| 1139 | mode->c_iflag |= ISTRIP;
|
---|
| 1140 | } else {
|
---|
| 1141 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1142 | mode->c_iflag &= ~ISTRIP;
|
---|
| 1143 | }
|
---|
[2725] | 1144 | } else if (info == &mode_info[IDX_litout]) {
|
---|
[1765] | 1145 | if (reversed) {
|
---|
| 1146 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
|
---|
| 1147 | mode->c_iflag |= ISTRIP;
|
---|
| 1148 | mode->c_oflag |= OPOST;
|
---|
| 1149 | } else {
|
---|
| 1150 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1151 | mode->c_iflag &= ~ISTRIP;
|
---|
| 1152 | mode->c_oflag &= ~OPOST;
|
---|
| 1153 | }
|
---|
[2725] | 1154 | } else if (info == &mode_info[IDX_raw] || info == &mode_info[IDX_cooked]) {
|
---|
| 1155 | if ((info == &mode_info[IDX_raw] && reversed)
|
---|
| 1156 | || (info == &mode_info[IDX_cooked] && !reversed)
|
---|
| 1157 | ) {
|
---|
[1765] | 1158 | /* Cooked mode */
|
---|
| 1159 | mode->c_iflag |= BRKINT | IGNPAR | ISTRIP | ICRNL | IXON;
|
---|
| 1160 | mode->c_oflag |= OPOST;
|
---|
| 1161 | mode->c_lflag |= ISIG | ICANON;
|
---|
| 1162 | #if VMIN == VEOF
|
---|
| 1163 | mode->c_cc[VEOF] = CEOF;
|
---|
| 1164 | #endif
|
---|
| 1165 | #if VTIME == VEOL
|
---|
| 1166 | mode->c_cc[VEOL] = CEOL;
|
---|
| 1167 | #endif
|
---|
| 1168 | } else {
|
---|
| 1169 | /* Raw mode */
|
---|
| 1170 | mode->c_iflag = 0;
|
---|
| 1171 | mode->c_oflag &= ~OPOST;
|
---|
| 1172 | mode->c_lflag &= ~(ISIG | ICANON | XCASE);
|
---|
| 1173 | mode->c_cc[VMIN] = 1;
|
---|
| 1174 | mode->c_cc[VTIME] = 0;
|
---|
| 1175 | }
|
---|
| 1176 | }
|
---|
[2725] | 1177 | #if IXANY
|
---|
| 1178 | else if (info == &mode_info[IDX_decctlq]) {
|
---|
[1765] | 1179 | if (reversed)
|
---|
| 1180 | mode->c_iflag |= IXANY;
|
---|
| 1181 | else
|
---|
| 1182 | mode->c_iflag &= ~IXANY;
|
---|
| 1183 | }
|
---|
[2725] | 1184 | #endif
|
---|
| 1185 | #if TABDLY
|
---|
| 1186 | else if (info == &mode_info[IDX_tabs]) {
|
---|
[1765] | 1187 | if (reversed)
|
---|
| 1188 | mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB3;
|
---|
| 1189 | else
|
---|
| 1190 | mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB0;
|
---|
| 1191 | }
|
---|
[2725] | 1192 | #endif
|
---|
| 1193 | #if OXTABS
|
---|
| 1194 | else if (info == &mode_info[IDX_tabs]) {
|
---|
[1765] | 1195 | if (reversed)
|
---|
| 1196 | mode->c_oflag |= OXTABS;
|
---|
| 1197 | else
|
---|
| 1198 | mode->c_oflag &= ~OXTABS;
|
---|
| 1199 | }
|
---|
[2725] | 1200 | #endif
|
---|
| 1201 | #if XCASE && IUCLC && OLCUC
|
---|
| 1202 | else if (info==&mode_info[IDX_lcase] || info==&mode_info[IDX_LCASE]) {
|
---|
[1765] | 1203 | if (reversed) {
|
---|
| 1204 | mode->c_lflag &= ~XCASE;
|
---|
| 1205 | mode->c_iflag &= ~IUCLC;
|
---|
| 1206 | mode->c_oflag &= ~OLCUC;
|
---|
| 1207 | } else {
|
---|
| 1208 | mode->c_lflag |= XCASE;
|
---|
| 1209 | mode->c_iflag |= IUCLC;
|
---|
| 1210 | mode->c_oflag |= OLCUC;
|
---|
| 1211 | }
|
---|
| 1212 | }
|
---|
[2725] | 1213 | #endif
|
---|
| 1214 | else if (info == &mode_info[IDX_crt]) {
|
---|
[1765] | 1215 | mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
|
---|
[2725] | 1216 | } else if (info == &mode_info[IDX_dec]) {
|
---|
[1765] | 1217 | mode->c_cc[VINTR] = 3; /* ^C */
|
---|
| 1218 | mode->c_cc[VERASE] = 127; /* DEL */
|
---|
| 1219 | mode->c_cc[VKILL] = 21; /* ^U */
|
---|
| 1220 | mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
|
---|
| 1221 | if (IXANY) mode->c_iflag &= ~IXANY;
|
---|
| 1222 | }
|
---|
[821] | 1223 | }
|
---|
| 1224 |
|
---|
[1765] | 1225 | static void set_control_char_or_die(const struct control_info *info,
|
---|
| 1226 | const char *arg, struct termios *mode)
|
---|
[821] | 1227 | {
|
---|
[1765] | 1228 | unsigned char value;
|
---|
[821] | 1229 |
|
---|
[2725] | 1230 | if (info == &control_info[CIDX_min] || info == &control_info[CIDX_time])
|
---|
[1765] | 1231 | value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
|
---|
| 1232 | else if (arg[0] == '\0' || arg[1] == '\0')
|
---|
| 1233 | value = arg[0];
|
---|
[2725] | 1234 | else if (strcmp(arg, "^-") == 0 || strcmp(arg, "undef") == 0)
|
---|
[1765] | 1235 | value = _POSIX_VDISABLE;
|
---|
| 1236 | else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */
|
---|
| 1237 | value = arg[1] & 0x1f; /* Non-letters get weird results */
|
---|
| 1238 | if (arg[1] == '?')
|
---|
| 1239 | value = 127;
|
---|
| 1240 | } else
|
---|
| 1241 | value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
|
---|
| 1242 | mode->c_cc[info->offset] = value;
|
---|
[821] | 1243 | }
|
---|
| 1244 |
|
---|
[2725] | 1245 | #define STTY_require_set_attr (1 << 0)
|
---|
| 1246 | #define STTY_speed_was_set (1 << 1)
|
---|
| 1247 | #define STTY_verbose_output (1 << 2)
|
---|
| 1248 | #define STTY_recoverable_output (1 << 3)
|
---|
| 1249 | #define STTY_noargs (1 << 4)
|
---|
| 1250 |
|
---|
| 1251 | int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 1252 | int stty_main(int argc UNUSED_PARAM, char **argv)
|
---|
[821] | 1253 | {
|
---|
[1765] | 1254 | struct termios mode;
|
---|
[2725] | 1255 | void (*output_func)(const struct termios *, int);
|
---|
[1765] | 1256 | const char *file_name = NULL;
|
---|
| 1257 | int display_all = 0;
|
---|
| 1258 | int stty_state;
|
---|
| 1259 | int k;
|
---|
[821] | 1260 |
|
---|
[2725] | 1261 | INIT_G();
|
---|
| 1262 |
|
---|
[1765] | 1263 | stty_state = STTY_noargs;
|
---|
| 1264 | output_func = do_display;
|
---|
[821] | 1265 |
|
---|
[1765] | 1266 | /* First pass: only parse/verify command line params */
|
---|
| 1267 | k = 0;
|
---|
| 1268 | while (argv[++k]) {
|
---|
| 1269 | const struct mode_info *mp;
|
---|
| 1270 | const struct control_info *cp;
|
---|
| 1271 | const char *arg = argv[k];
|
---|
| 1272 | const char *argnext = argv[k+1];
|
---|
| 1273 | int param;
|
---|
[821] | 1274 |
|
---|
[1765] | 1275 | if (arg[0] == '-') {
|
---|
| 1276 | int i;
|
---|
| 1277 | mp = find_mode(arg+1);
|
---|
| 1278 | if (mp) {
|
---|
| 1279 | if (!(mp->flags & REV))
|
---|
| 1280 | goto invalid_argument;
|
---|
| 1281 | stty_state &= ~STTY_noargs;
|
---|
| 1282 | continue;
|
---|
| 1283 | }
|
---|
| 1284 | /* It is an option - parse it */
|
---|
| 1285 | i = 0;
|
---|
| 1286 | while (arg[++i]) {
|
---|
| 1287 | switch (arg[i]) {
|
---|
| 1288 | case 'a':
|
---|
| 1289 | stty_state |= STTY_verbose_output;
|
---|
| 1290 | output_func = do_display;
|
---|
| 1291 | display_all = 1;
|
---|
| 1292 | break;
|
---|
| 1293 | case 'g':
|
---|
| 1294 | stty_state |= STTY_recoverable_output;
|
---|
| 1295 | output_func = display_recoverable;
|
---|
| 1296 | break;
|
---|
| 1297 | case 'F':
|
---|
| 1298 | if (file_name)
|
---|
| 1299 | bb_error_msg_and_die("only one device may be specified");
|
---|
| 1300 | file_name = &arg[i+1]; /* "-Fdevice" ? */
|
---|
| 1301 | if (!file_name[0]) { /* nope, "-F device" */
|
---|
| 1302 | int p = k+1; /* argv[p] is argnext */
|
---|
| 1303 | file_name = argnext;
|
---|
| 1304 | if (!file_name)
|
---|
| 1305 | bb_error_msg_and_die(bb_msg_requires_arg, "-F");
|
---|
| 1306 | /* remove -F param from arg[vc] */
|
---|
[2725] | 1307 | while (argv[p]) {
|
---|
| 1308 | argv[p] = argv[p+1];
|
---|
| 1309 | ++p;
|
---|
| 1310 | }
|
---|
[1765] | 1311 | }
|
---|
| 1312 | goto end_option;
|
---|
| 1313 | default:
|
---|
| 1314 | goto invalid_argument;
|
---|
| 1315 | }
|
---|
| 1316 | }
|
---|
| 1317 | end_option:
|
---|
| 1318 | continue;
|
---|
| 1319 | }
|
---|
[821] | 1320 |
|
---|
[1765] | 1321 | mp = find_mode(arg);
|
---|
| 1322 | if (mp) {
|
---|
| 1323 | stty_state &= ~STTY_noargs;
|
---|
| 1324 | continue;
|
---|
| 1325 | }
|
---|
[821] | 1326 |
|
---|
[1765] | 1327 | cp = find_control(arg);
|
---|
| 1328 | if (cp) {
|
---|
| 1329 | if (!argnext)
|
---|
| 1330 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1331 | /* called for the side effect of xfunc death only */
|
---|
| 1332 | set_control_char_or_die(cp, argnext, &mode);
|
---|
| 1333 | stty_state &= ~STTY_noargs;
|
---|
| 1334 | ++k;
|
---|
| 1335 | continue;
|
---|
| 1336 | }
|
---|
[821] | 1337 |
|
---|
[1765] | 1338 | param = find_param(arg);
|
---|
| 1339 | if (param & param_need_arg) {
|
---|
| 1340 | if (!argnext)
|
---|
| 1341 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1342 | ++k;
|
---|
| 1343 | }
|
---|
| 1344 |
|
---|
| 1345 | switch (param) {
|
---|
[3232] | 1346 | #ifdef __linux__
|
---|
[1765] | 1347 | case param_line:
|
---|
| 1348 | # ifndef TIOCGWINSZ
|
---|
| 1349 | xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
|
---|
[821] | 1350 | break;
|
---|
[1765] | 1351 | # endif /* else fall-through */
|
---|
[821] | 1352 | #endif
|
---|
[1765] | 1353 | #ifdef TIOCGWINSZ
|
---|
| 1354 | case param_rows:
|
---|
| 1355 | case param_cols:
|
---|
| 1356 | case param_columns:
|
---|
| 1357 | xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
|
---|
| 1358 | break;
|
---|
| 1359 | case param_size:
|
---|
| 1360 | #endif
|
---|
| 1361 | case param_speed:
|
---|
| 1362 | break;
|
---|
| 1363 | case param_ispeed:
|
---|
| 1364 | /* called for the side effect of xfunc death only */
|
---|
| 1365 | set_speed_or_die(input_speed, argnext, &mode);
|
---|
| 1366 | break;
|
---|
| 1367 | case param_ospeed:
|
---|
| 1368 | /* called for the side effect of xfunc death only */
|
---|
| 1369 | set_speed_or_die(output_speed, argnext, &mode);
|
---|
| 1370 | break;
|
---|
| 1371 | default:
|
---|
| 1372 | if (recover_mode(arg, &mode) == 1) break;
|
---|
| 1373 | if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) break;
|
---|
| 1374 | invalid_argument:
|
---|
| 1375 | bb_error_msg_and_die("invalid argument '%s'", arg);
|
---|
| 1376 | }
|
---|
| 1377 | stty_state &= ~STTY_noargs;
|
---|
[821] | 1378 | }
|
---|
| 1379 |
|
---|
[1765] | 1380 | /* Specifying both -a and -g is an error */
|
---|
| 1381 | if ((stty_state & (STTY_verbose_output | STTY_recoverable_output)) ==
|
---|
[3232] | 1382 | (STTY_verbose_output | STTY_recoverable_output)
|
---|
| 1383 | ) {
|
---|
| 1384 | bb_error_msg_and_die("-a and -g are mutually exclusive");
|
---|
| 1385 | }
|
---|
[1765] | 1386 | /* Specifying -a or -g with non-options is an error */
|
---|
[3232] | 1387 | if ((stty_state & (STTY_verbose_output | STTY_recoverable_output))
|
---|
| 1388 | && !(stty_state & STTY_noargs)
|
---|
[2725] | 1389 | ) {
|
---|
[3232] | 1390 | bb_error_msg_and_die("modes may not be set when -a or -g is used");
|
---|
[2725] | 1391 | }
|
---|
[1765] | 1392 |
|
---|
| 1393 | /* Now it is safe to start doing things */
|
---|
| 1394 | if (file_name) {
|
---|
[2725] | 1395 | G.device_name = file_name;
|
---|
| 1396 | xmove_fd(xopen_nonblocking(G.device_name), STDIN_FILENO);
|
---|
| 1397 | ndelay_off(STDIN_FILENO);
|
---|
[821] | 1398 | }
|
---|
| 1399 |
|
---|
[1765] | 1400 | /* Initialize to all zeroes so there is no risk memcmp will report a
|
---|
| 1401 | spurious difference in an uninitialized portion of the structure */
|
---|
| 1402 | memset(&mode, 0, sizeof(mode));
|
---|
| 1403 | if (tcgetattr(STDIN_FILENO, &mode))
|
---|
| 1404 | perror_on_device_and_die("%s");
|
---|
[821] | 1405 |
|
---|
[1765] | 1406 | if (stty_state & (STTY_verbose_output | STTY_recoverable_output | STTY_noargs)) {
|
---|
[3621] | 1407 | G.max_col = get_terminal_width(STDOUT_FILENO);
|
---|
[1765] | 1408 | output_func(&mode, display_all);
|
---|
| 1409 | return EXIT_SUCCESS;
|
---|
[821] | 1410 | }
|
---|
| 1411 |
|
---|
[1765] | 1412 | /* Second pass: perform actions */
|
---|
| 1413 | k = 0;
|
---|
| 1414 | while (argv[++k]) {
|
---|
| 1415 | const struct mode_info *mp;
|
---|
| 1416 | const struct control_info *cp;
|
---|
| 1417 | const char *arg = argv[k];
|
---|
| 1418 | const char *argnext = argv[k+1];
|
---|
| 1419 | int param;
|
---|
[821] | 1420 |
|
---|
[1765] | 1421 | if (arg[0] == '-') {
|
---|
| 1422 | mp = find_mode(arg+1);
|
---|
| 1423 | if (mp) {
|
---|
| 1424 | set_mode(mp, 1 /* reversed */, &mode);
|
---|
| 1425 | stty_state |= STTY_require_set_attr;
|
---|
| 1426 | }
|
---|
| 1427 | /* It is an option - already parsed. Skip it */
|
---|
| 1428 | continue;
|
---|
| 1429 | }
|
---|
| 1430 |
|
---|
| 1431 | mp = find_mode(arg);
|
---|
| 1432 | if (mp) {
|
---|
| 1433 | set_mode(mp, 0 /* non-reversed */, &mode);
|
---|
| 1434 | stty_state |= STTY_require_set_attr;
|
---|
| 1435 | continue;
|
---|
| 1436 | }
|
---|
| 1437 |
|
---|
| 1438 | cp = find_control(arg);
|
---|
| 1439 | if (cp) {
|
---|
| 1440 | ++k;
|
---|
| 1441 | set_control_char_or_die(cp, argnext, &mode);
|
---|
| 1442 | stty_state |= STTY_require_set_attr;
|
---|
| 1443 | continue;
|
---|
| 1444 | }
|
---|
| 1445 |
|
---|
| 1446 | param = find_param(arg);
|
---|
| 1447 | if (param & param_need_arg) {
|
---|
| 1448 | ++k;
|
---|
| 1449 | }
|
---|
| 1450 |
|
---|
| 1451 | switch (param) {
|
---|
[3232] | 1452 | #ifdef __linux__
|
---|
[1765] | 1453 | case param_line:
|
---|
| 1454 | mode.c_line = xatoul_sfx(argnext, stty_suffixes);
|
---|
| 1455 | stty_state |= STTY_require_set_attr;
|
---|
| 1456 | break;
|
---|
| 1457 | #endif
|
---|
| 1458 | #ifdef TIOCGWINSZ
|
---|
| 1459 | case param_cols:
|
---|
[2725] | 1460 | case param_columns:
|
---|
[1765] | 1461 | set_window_size(-1, xatoul_sfx(argnext, stty_suffixes));
|
---|
| 1462 | break;
|
---|
| 1463 | case param_size:
|
---|
| 1464 | display_window_size(0);
|
---|
| 1465 | break;
|
---|
| 1466 | case param_rows:
|
---|
| 1467 | set_window_size(xatoul_sfx(argnext, stty_suffixes), -1);
|
---|
| 1468 | break;
|
---|
| 1469 | #endif
|
---|
| 1470 | case param_speed:
|
---|
| 1471 | display_speed(&mode, 0);
|
---|
| 1472 | break;
|
---|
| 1473 | case param_ispeed:
|
---|
| 1474 | set_speed_or_die(input_speed, argnext, &mode);
|
---|
| 1475 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1476 | break;
|
---|
| 1477 | case param_ospeed:
|
---|
| 1478 | set_speed_or_die(output_speed, argnext, &mode);
|
---|
| 1479 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1480 | break;
|
---|
| 1481 | default:
|
---|
| 1482 | if (recover_mode(arg, &mode) == 1)
|
---|
| 1483 | stty_state |= STTY_require_set_attr;
|
---|
| 1484 | else /* true: if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) */{
|
---|
| 1485 | set_speed_or_die(both_speeds, arg, &mode);
|
---|
| 1486 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1487 | } /* else - impossible (caught in the first pass):
|
---|
| 1488 | bb_error_msg_and_die("invalid argument '%s'", arg); */
|
---|
| 1489 | }
|
---|
[821] | 1490 | }
|
---|
| 1491 |
|
---|
[1765] | 1492 | if (stty_state & STTY_require_set_attr) {
|
---|
| 1493 | struct termios new_mode;
|
---|
[821] | 1494 |
|
---|
[1765] | 1495 | if (tcsetattr(STDIN_FILENO, TCSADRAIN, &mode))
|
---|
| 1496 | perror_on_device_and_die("%s");
|
---|
[821] | 1497 |
|
---|
[1765] | 1498 | /* POSIX (according to Zlotnick's book) tcsetattr returns zero if
|
---|
| 1499 | it performs *any* of the requested operations. This means it
|
---|
| 1500 | can report 'success' when it has actually failed to perform
|
---|
| 1501 | some proper subset of the requested operations. To detect
|
---|
| 1502 | this partial failure, get the current terminal attributes and
|
---|
| 1503 | compare them to the requested ones */
|
---|
[821] | 1504 |
|
---|
[1765] | 1505 | /* Initialize to all zeroes so there is no risk memcmp will report a
|
---|
| 1506 | spurious difference in an uninitialized portion of the structure */
|
---|
| 1507 | memset(&new_mode, 0, sizeof(new_mode));
|
---|
| 1508 | if (tcgetattr(STDIN_FILENO, &new_mode))
|
---|
| 1509 | perror_on_device_and_die("%s");
|
---|
| 1510 |
|
---|
| 1511 | if (memcmp(&mode, &new_mode, sizeof(mode)) != 0) {
|
---|
[3621] | 1512 | /*
|
---|
| 1513 | * I think the below chunk is not necessary on Linux.
|
---|
| 1514 | * If you are deleting it, also delete STTY_speed_was_set bit -
|
---|
| 1515 | * it is only ever checked here.
|
---|
| 1516 | */
|
---|
| 1517 | #if 0 /* was "if CIBAUD" */
|
---|
[1765] | 1518 | /* SunOS 4.1.3 (at least) has the problem that after this sequence,
|
---|
| 1519 | tcgetattr (&m1); tcsetattr (&m1); tcgetattr (&m2);
|
---|
| 1520 | sometimes (m1 != m2). The only difference is in the four bits
|
---|
| 1521 | of the c_cflag field corresponding to the baud rate. To save
|
---|
| 1522 | Sun users a little confusion, don't report an error if this
|
---|
| 1523 | happens. But suppress the error only if we haven't tried to
|
---|
| 1524 | set the baud rate explicitly -- otherwise we'd never give an
|
---|
| 1525 | error for a true failure to set the baud rate */
|
---|
| 1526 |
|
---|
| 1527 | new_mode.c_cflag &= (~CIBAUD);
|
---|
| 1528 | if ((stty_state & STTY_speed_was_set)
|
---|
| 1529 | || memcmp(&mode, &new_mode, sizeof(mode)) != 0)
|
---|
[821] | 1530 | #endif
|
---|
[1765] | 1531 | perror_on_device_and_die("%s: cannot perform all requested operations");
|
---|
| 1532 | }
|
---|
| 1533 | }
|
---|
| 1534 |
|
---|
| 1535 | return EXIT_SUCCESS;
|
---|
| 1536 | }
|
---|