[3320] | 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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| 5 | Licensed under GPLv2 or later, see file LICENSE in this source tree.
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| 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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| 24 | #include "libbb.h"
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| 25 |
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| 26 | #ifndef _POSIX_VDISABLE
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| 27 | # define _POSIX_VDISABLE ((unsigned char) 0)
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| 28 | #endif
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| 29 |
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| 30 | #define Control(c) ((c) & 0x1f)
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| 31 | /* Canonical values for control characters */
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| 32 | #ifndef CINTR
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| 33 | # define CINTR Control('c')
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| 34 | #endif
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| 35 | #ifndef CQUIT
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| 36 | # define CQUIT 28
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| 37 | #endif
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| 38 | #ifndef CERASE
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| 39 | # define CERASE 127
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| 40 | #endif
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| 41 | #ifndef CKILL
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| 42 | # define CKILL Control('u')
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| 43 | #endif
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| 44 | #ifndef CEOF
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| 45 | # define CEOF Control('d')
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| 46 | #endif
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| 47 | #ifndef CEOL
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| 48 | # define CEOL _POSIX_VDISABLE
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| 49 | #endif
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| 50 | #ifndef CSTART
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| 51 | # define CSTART Control('q')
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| 52 | #endif
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| 53 | #ifndef CSTOP
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| 54 | # define CSTOP Control('s')
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| 55 | #endif
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| 56 | #ifndef CSUSP
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| 57 | # define CSUSP Control('z')
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| 58 | #endif
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| 59 | #if defined(VEOL2) && !defined(CEOL2)
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| 60 | # define CEOL2 _POSIX_VDISABLE
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| 61 | #endif
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| 62 | /* ISC renamed swtch to susp for termios, but we'll accept either name */
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| 63 | #if defined(VSUSP) && !defined(VSWTCH)
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| 64 | # define VSWTCH VSUSP
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| 65 | # define CSWTCH CSUSP
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| 66 | #endif
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| 67 | #if defined(VSWTCH) && !defined(CSWTCH)
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| 68 | # define CSWTCH _POSIX_VDISABLE
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| 69 | #endif
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| 70 |
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| 71 | /* SunOS 5.3 loses (^Z doesn't work) if 'swtch' is the same as 'susp'.
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| 72 | So the default is to disable 'swtch.' */
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| 73 | #if defined(__sparc__) && defined(__svr4__)
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| 74 | # undef CSWTCH
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| 75 | # define CSWTCH _POSIX_VDISABLE
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| 76 | #endif
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| 77 |
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| 78 | #if defined(VWERSE) && !defined(VWERASE) /* AIX-3.2.5 */
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| 79 | # define VWERASE VWERSE
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| 80 | #endif
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| 81 | #if defined(VDSUSP) && !defined(CDSUSP)
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| 82 | # define CDSUSP Control('y')
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| 83 | #endif
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| 84 | #if !defined(VREPRINT) && defined(VRPRNT) /* Irix 4.0.5 */
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| 85 | # define VREPRINT VRPRNT
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| 86 | #endif
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| 87 | #if defined(VREPRINT) && !defined(CRPRNT)
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| 88 | # define CRPRNT Control('r')
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| 89 | #endif
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| 90 | #if defined(VWERASE) && !defined(CWERASE)
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| 91 | # define CWERASE Control('w')
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| 92 | #endif
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| 93 | #if defined(VLNEXT) && !defined(CLNEXT)
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| 94 | # define CLNEXT Control('v')
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| 95 | #endif
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| 96 | #if defined(VDISCARD) && !defined(VFLUSHO)
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| 97 | # define VFLUSHO VDISCARD
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| 98 | #endif
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| 99 | #if defined(VFLUSH) && !defined(VFLUSHO) /* Ultrix 4.2 */
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| 100 | # define VFLUSHO VFLUSH
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| 101 | #endif
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| 102 | #if defined(CTLECH) && !defined(ECHOCTL) /* Ultrix 4.3 */
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| 103 | # define ECHOCTL CTLECH
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| 104 | #endif
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| 105 | #if defined(TCTLECH) && !defined(ECHOCTL) /* Ultrix 4.2 */
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| 106 | # define ECHOCTL TCTLECH
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| 107 | #endif
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| 108 | #if defined(CRTKIL) && !defined(ECHOKE) /* Ultrix 4.2 and 4.3 */
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| 109 | # define ECHOKE CRTKIL
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| 110 | #endif
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| 111 | #if defined(VFLUSHO) && !defined(CFLUSHO)
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| 112 | # define CFLUSHO Control('o')
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| 113 | #endif
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| 114 | #if defined(VSTATUS) && !defined(CSTATUS)
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| 115 | # define CSTATUS Control('t')
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| 116 | #endif
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| 117 |
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| 118 | /* Save us from #ifdef forest plague */
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| 119 | #ifndef BSDLY
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| 120 | # define BSDLY 0
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| 121 | #endif
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| 122 | #ifndef CIBAUD
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| 123 | # define CIBAUD 0
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| 124 | #endif
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| 125 | #ifndef CRDLY
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| 126 | # define CRDLY 0
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| 127 | #endif
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| 128 | #ifndef CRTSCTS
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| 129 | # define CRTSCTS 0
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| 130 | #endif
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| 131 | #ifndef ECHOCTL
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| 132 | # define ECHOCTL 0
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| 133 | #endif
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| 134 | #ifndef ECHOKE
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| 135 | # define ECHOKE 0
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| 136 | #endif
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| 137 | #ifndef ECHOPRT
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| 138 | # define ECHOPRT 0
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| 139 | #endif
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| 140 | #ifndef FFDLY
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| 141 | # define FFDLY 0
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| 142 | #endif
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| 143 | #ifndef IEXTEN
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| 144 | # define IEXTEN 0
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| 145 | #endif
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| 146 | #ifndef IMAXBEL
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| 147 | # define IMAXBEL 0
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| 148 | #endif
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| 149 | #ifndef IUCLC
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| 150 | # define IUCLC 0
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| 151 | #endif
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| 152 | #ifndef IXANY
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| 153 | # define IXANY 0
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| 154 | #endif
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| 155 | #ifndef NLDLY
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| 156 | # define NLDLY 0
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| 157 | #endif
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| 158 | #ifndef OCRNL
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| 159 | # define OCRNL 0
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| 160 | #endif
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| 161 | #ifndef OFDEL
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| 162 | # define OFDEL 0
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| 163 | #endif
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| 164 | #ifndef OFILL
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| 165 | # define OFILL 0
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| 166 | #endif
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| 167 | #ifndef OLCUC
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| 168 | # define OLCUC 0
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| 169 | #endif
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| 170 | #ifndef ONLCR
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| 171 | # define ONLCR 0
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| 172 | #endif
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| 173 | #ifndef ONLRET
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| 174 | # define ONLRET 0
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| 175 | #endif
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| 176 | #ifndef ONOCR
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| 177 | # define ONOCR 0
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| 178 | #endif
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| 179 | #ifndef OXTABS
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| 180 | # define OXTABS 0
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| 181 | #endif
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| 182 | #ifndef TABDLY
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| 183 | # define TABDLY 0
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| 184 | #endif
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| 185 | #ifndef TAB1
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| 186 | # define TAB1 0
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| 187 | #endif
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| 188 | #ifndef TAB2
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| 189 | # define TAB2 0
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| 190 | #endif
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| 191 | #ifndef TOSTOP
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| 192 | # define TOSTOP 0
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| 193 | #endif
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| 194 | #ifndef VDSUSP
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| 195 | # define VDSUSP 0
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| 196 | #endif
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| 197 | #ifndef VEOL2
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| 198 | # define VEOL2 0
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| 199 | #endif
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| 200 | #ifndef VFLUSHO
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| 201 | # define VFLUSHO 0
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| 202 | #endif
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| 203 | #ifndef VLNEXT
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| 204 | # define VLNEXT 0
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| 205 | #endif
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| 206 | #ifndef VREPRINT
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| 207 | # define VREPRINT 0
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| 208 | #endif
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| 209 | #ifndef VSTATUS
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| 210 | # define VSTATUS 0
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| 211 | #endif
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| 212 | #ifndef VSWTCH
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| 213 | # define VSWTCH 0
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| 214 | #endif
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| 215 | #ifndef VTDLY
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| 216 | # define VTDLY 0
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| 217 | #endif
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| 218 | #ifndef VWERASE
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| 219 | # define VWERASE 0
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| 220 | #endif
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| 221 | #ifndef XCASE
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| 222 | # define XCASE 0
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| 223 | #endif
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| 224 |
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| 225 | /* Which speeds to set */
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| 226 | enum speed_setting {
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| 227 | input_speed, output_speed, both_speeds
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| 228 | };
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| 229 |
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| 230 | /* Which member(s) of 'struct termios' a mode uses */
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| 231 | enum {
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| 232 | /* Do NOT change the order or values, as mode_type_flag()
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| 233 | * depends on them */
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| 234 | control, input, output, local, combination
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| 235 | };
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| 236 |
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| 237 | /* Flags for 'struct mode_info' */
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| 238 | #define SANE_SET 1 /* Set in 'sane' mode */
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| 239 | #define SANE_UNSET 2 /* Unset in 'sane' mode */
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| 240 | #define REV 4 /* Can be turned off by prepending '-' */
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| 241 | #define OMIT 8 /* Don't display value */
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| 242 |
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| 243 |
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| 244 | /* Each mode.
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| 245 | * This structure should be kept as small as humanly possible.
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| 246 | */
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| 247 | struct mode_info {
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| 248 | const uint8_t type; /* Which structure element to change */
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| 249 | const uint8_t flags; /* Setting and display options */
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| 250 | /* only these values are ever used, so... */
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| 251 | #if (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x100
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| 252 | const uint8_t mask;
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| 253 | #elif (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x10000
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| 254 | const uint16_t mask;
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| 255 | #else
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| 256 | const tcflag_t mask; /* Other bits to turn off for this mode */
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| 257 | #endif
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| 258 | /* was using short here, but ppc32 was unhappy */
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| 259 | const tcflag_t bits; /* Bits to set for this mode */
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| 260 | };
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| 261 |
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| 262 | enum {
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| 263 | /* Must match mode_name[] and mode_info[] order! */
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| 264 | IDX_evenp = 0,
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| 265 | IDX_parity,
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| 266 | IDX_oddp,
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| 267 | IDX_nl,
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| 268 | IDX_ek,
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| 269 | IDX_sane,
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| 270 | IDX_cooked,
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| 271 | IDX_raw,
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| 272 | IDX_pass8,
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| 273 | IDX_litout,
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| 274 | IDX_cbreak,
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| 275 | IDX_crt,
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| 276 | IDX_dec,
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| 277 | #if IXANY
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| 278 | IDX_decctlq,
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| 279 | #endif
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| 280 | #if TABDLY || OXTABS
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| 281 | IDX_tabs,
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| 282 | #endif
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| 283 | #if XCASE && IUCLC && OLCUC
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| 284 | IDX_lcase,
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| 285 | IDX_LCASE,
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| 286 | #endif
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| 287 | };
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| 288 |
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| 289 | #define MI_ENTRY(N,T,F,B,M) N "\0"
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| 290 |
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| 291 | /* Mode names given on command line */
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| 292 | static const char mode_name[] =
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| 293 | MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
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| 294 | MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
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| 295 | MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
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| 296 | MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
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| 297 | MI_ENTRY("ek", combination, OMIT, 0, 0 )
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| 298 | MI_ENTRY("sane", combination, OMIT, 0, 0 )
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| 299 | MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
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| 300 | MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
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| 301 | MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
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| 302 | MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
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| 303 | MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
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| 304 | MI_ENTRY("crt", combination, OMIT, 0, 0 )
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| 305 | MI_ENTRY("dec", combination, OMIT, 0, 0 )
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| 306 | #if IXANY
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| 307 | MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
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| 308 | #endif
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| 309 | #if TABDLY || OXTABS
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| 310 | MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
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| 311 | #endif
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| 312 | #if XCASE && IUCLC && OLCUC
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| 313 | MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
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| 314 | MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
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| 315 | #endif
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| 316 | MI_ENTRY("parenb", control, REV, PARENB, 0 )
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| 317 | MI_ENTRY("parodd", control, REV, PARODD, 0 )
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| 318 | MI_ENTRY("cs5", control, 0, CS5, CSIZE)
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| 319 | MI_ENTRY("cs6", control, 0, CS6, CSIZE)
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| 320 | MI_ENTRY("cs7", control, 0, CS7, CSIZE)
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| 321 | MI_ENTRY("cs8", control, 0, CS8, CSIZE)
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| 322 | MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
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| 323 | MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
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| 324 | MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
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| 325 | MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
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| 326 | MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
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| 327 | #if CRTSCTS
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| 328 | MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
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| 329 | #endif
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| 330 | MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
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| 331 | MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
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| 332 | MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
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| 333 | MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
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| 334 | MI_ENTRY("inpck", input, REV, INPCK, 0 )
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| 335 | MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
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| 336 | MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
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| 337 | MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
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| 338 | MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
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| 339 | MI_ENTRY("ixon", input, REV, IXON, 0 )
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| 340 | MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
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| 341 | MI_ENTRY("tandem", input, REV | OMIT, IXOFF, 0 )
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| 342 | #if IUCLC
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| 343 | MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
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| 344 | #endif
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| 345 | #if IXANY
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| 346 | MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
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| 347 | #endif
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| 348 | #if IMAXBEL
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| 349 | MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
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| 350 | #endif
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| 351 | MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
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| 352 | #if OLCUC
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| 353 | MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
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| 354 | #endif
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| 355 | #if OCRNL
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| 356 | MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
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| 357 | #endif
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| 358 | #if ONLCR
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| 359 | MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
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| 360 | #endif
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| 361 | #if ONOCR
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| 362 | MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
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| 363 | #endif
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| 364 | #if ONLRET
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| 365 | MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
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| 366 | #endif
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| 367 | #if OFILL
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| 368 | MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
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| 369 | #endif
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| 370 | #if OFDEL
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| 371 | MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
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| 372 | #endif
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| 373 | #if NLDLY
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| 374 | MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
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| 375 | MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
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| 376 | #endif
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| 377 | #if CRDLY
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| 378 | MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
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| 379 | MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
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| 380 | MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
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| 381 | MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
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| 382 | #endif
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| 383 |
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| 384 | #if TABDLY
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| 385 | MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
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| 386 | # if TAB2
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| 387 | MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
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| 388 | # endif
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| 389 | # if TAB1
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| 390 | MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
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| 391 | # endif
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| 392 | MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
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| 393 | #else
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| 394 | # if OXTABS
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| 395 | MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
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| 396 | # endif
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| 397 | #endif
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| 398 |
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| 399 | #if BSDLY
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| 400 | MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
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| 401 | MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
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| 402 | #endif
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| 403 | #if VTDLY
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| 404 | MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
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| 405 | MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
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| 406 | #endif
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| 407 | #if FFDLY
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| 408 | MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
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| 409 | MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
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| 410 | #endif
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| 411 | MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
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| 412 | MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
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| 413 | #if IEXTEN
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| 414 | MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
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| 415 | #endif
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| 416 | MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
|
---|
| 417 | MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
|
---|
| 418 | MI_ENTRY("crterase", local, REV | OMIT, ECHOE, 0 )
|
---|
| 419 | MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
|
---|
| 420 | MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
|
---|
| 421 | MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
|
---|
| 422 | #if XCASE
|
---|
| 423 | MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
|
---|
| 424 | #endif
|
---|
| 425 | #if TOSTOP
|
---|
| 426 | MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
|
---|
| 427 | #endif
|
---|
| 428 | #if ECHOPRT
|
---|
| 429 | MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
|
---|
| 430 | MI_ENTRY("prterase", local, REV | OMIT, ECHOPRT, 0 )
|
---|
| 431 | #endif
|
---|
| 432 | #if ECHOCTL
|
---|
| 433 | MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
|
---|
| 434 | MI_ENTRY("ctlecho", local, REV | OMIT, ECHOCTL, 0 )
|
---|
| 435 | #endif
|
---|
| 436 | #if ECHOKE
|
---|
| 437 | MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
|
---|
| 438 | MI_ENTRY("crtkill", local, REV | OMIT, ECHOKE, 0 )
|
---|
| 439 | #endif
|
---|
| 440 | ;
|
---|
| 441 |
|
---|
| 442 | #undef MI_ENTRY
|
---|
| 443 | #define MI_ENTRY(N,T,F,B,M) { T, F, M, B },
|
---|
| 444 |
|
---|
| 445 | static const struct mode_info mode_info[] = {
|
---|
| 446 | /* This should be verbatim cut-n-paste copy of the above MI_ENTRYs */
|
---|
| 447 | MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
|
---|
| 448 | MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
|
---|
| 449 | MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
|
---|
| 450 | MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
|
---|
| 451 | MI_ENTRY("ek", combination, OMIT, 0, 0 )
|
---|
| 452 | MI_ENTRY("sane", combination, OMIT, 0, 0 )
|
---|
| 453 | MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
|
---|
| 454 | MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
|
---|
| 455 | MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
|
---|
| 456 | MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
|
---|
| 457 | MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
|
---|
| 458 | MI_ENTRY("crt", combination, OMIT, 0, 0 )
|
---|
| 459 | MI_ENTRY("dec", combination, OMIT, 0, 0 )
|
---|
| 460 | #if IXANY
|
---|
| 461 | MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
|
---|
| 462 | #endif
|
---|
| 463 | #if TABDLY || OXTABS
|
---|
| 464 | MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
|
---|
| 465 | #endif
|
---|
| 466 | #if XCASE && IUCLC && OLCUC
|
---|
| 467 | MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
|
---|
| 468 | MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
|
---|
| 469 | #endif
|
---|
| 470 | MI_ENTRY("parenb", control, REV, PARENB, 0 )
|
---|
| 471 | MI_ENTRY("parodd", control, REV, PARODD, 0 )
|
---|
| 472 | MI_ENTRY("cs5", control, 0, CS5, CSIZE)
|
---|
| 473 | MI_ENTRY("cs6", control, 0, CS6, CSIZE)
|
---|
| 474 | MI_ENTRY("cs7", control, 0, CS7, CSIZE)
|
---|
| 475 | MI_ENTRY("cs8", control, 0, CS8, CSIZE)
|
---|
| 476 | MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
|
---|
| 477 | MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
|
---|
| 478 | MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
|
---|
| 479 | MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
|
---|
| 480 | MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
|
---|
| 481 | #if CRTSCTS
|
---|
| 482 | MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
|
---|
| 483 | #endif
|
---|
| 484 | MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
|
---|
| 485 | MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
|
---|
| 486 | MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
|
---|
| 487 | MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
|
---|
| 488 | MI_ENTRY("inpck", input, REV, INPCK, 0 )
|
---|
| 489 | MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
|
---|
| 490 | MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
|
---|
| 491 | MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
|
---|
| 492 | MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
|
---|
| 493 | MI_ENTRY("ixon", input, REV, IXON, 0 )
|
---|
| 494 | MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
|
---|
| 495 | MI_ENTRY("tandem", input, REV | OMIT, IXOFF, 0 )
|
---|
| 496 | #if IUCLC
|
---|
| 497 | MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
|
---|
| 498 | #endif
|
---|
| 499 | #if IXANY
|
---|
| 500 | MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
|
---|
| 501 | #endif
|
---|
| 502 | #if IMAXBEL
|
---|
| 503 | MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
|
---|
| 504 | #endif
|
---|
| 505 | MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
|
---|
| 506 | #if OLCUC
|
---|
| 507 | MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
|
---|
| 508 | #endif
|
---|
| 509 | #if OCRNL
|
---|
| 510 | MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
|
---|
| 511 | #endif
|
---|
| 512 | #if ONLCR
|
---|
| 513 | MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
|
---|
| 514 | #endif
|
---|
| 515 | #if ONOCR
|
---|
| 516 | MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
|
---|
| 517 | #endif
|
---|
| 518 | #if ONLRET
|
---|
| 519 | MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
|
---|
| 520 | #endif
|
---|
| 521 | #if OFILL
|
---|
| 522 | MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
|
---|
| 523 | #endif
|
---|
| 524 | #if OFDEL
|
---|
| 525 | MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
|
---|
| 526 | #endif
|
---|
| 527 | #if NLDLY
|
---|
| 528 | MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
|
---|
| 529 | MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
|
---|
| 530 | #endif
|
---|
| 531 | #if CRDLY
|
---|
| 532 | MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
|
---|
| 533 | MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
|
---|
| 534 | MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
|
---|
| 535 | MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
|
---|
| 536 | #endif
|
---|
| 537 |
|
---|
| 538 | #if TABDLY
|
---|
| 539 | MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
|
---|
| 540 | # if TAB2
|
---|
| 541 | MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
|
---|
| 542 | # endif
|
---|
| 543 | # if TAB1
|
---|
| 544 | MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
|
---|
| 545 | # endif
|
---|
| 546 | MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
|
---|
| 547 | #else
|
---|
| 548 | # if OXTABS
|
---|
| 549 | MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
|
---|
| 550 | # endif
|
---|
| 551 | #endif
|
---|
| 552 |
|
---|
| 553 | #if BSDLY
|
---|
| 554 | MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
|
---|
| 555 | MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
|
---|
| 556 | #endif
|
---|
| 557 | #if VTDLY
|
---|
| 558 | MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
|
---|
| 559 | MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
|
---|
| 560 | #endif
|
---|
| 561 | #if FFDLY
|
---|
| 562 | MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
|
---|
| 563 | MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
|
---|
| 564 | #endif
|
---|
| 565 | MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
|
---|
| 566 | MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
|
---|
| 567 | #if IEXTEN
|
---|
| 568 | MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
|
---|
| 569 | #endif
|
---|
| 570 | MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
|
---|
| 571 | MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
|
---|
| 572 | MI_ENTRY("crterase", local, REV | OMIT, ECHOE, 0 )
|
---|
| 573 | MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
|
---|
| 574 | MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
|
---|
| 575 | MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
|
---|
| 576 | #if XCASE
|
---|
| 577 | MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
|
---|
| 578 | #endif
|
---|
| 579 | #if TOSTOP
|
---|
| 580 | MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
|
---|
| 581 | #endif
|
---|
| 582 | #if ECHOPRT
|
---|
| 583 | MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
|
---|
| 584 | MI_ENTRY("prterase", local, REV | OMIT, ECHOPRT, 0 )
|
---|
| 585 | #endif
|
---|
| 586 | #if ECHOCTL
|
---|
| 587 | MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
|
---|
| 588 | MI_ENTRY("ctlecho", local, REV | OMIT, ECHOCTL, 0 )
|
---|
| 589 | #endif
|
---|
| 590 | #if ECHOKE
|
---|
| 591 | MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
|
---|
| 592 | MI_ENTRY("crtkill", local, REV | OMIT, ECHOKE, 0 )
|
---|
| 593 | #endif
|
---|
| 594 | };
|
---|
| 595 |
|
---|
| 596 | enum {
|
---|
| 597 | NUM_mode_info = ARRAY_SIZE(mode_info)
|
---|
| 598 | };
|
---|
| 599 |
|
---|
| 600 |
|
---|
| 601 | /* Control characters */
|
---|
| 602 | struct control_info {
|
---|
| 603 | const uint8_t saneval; /* Value to set for 'stty sane' */
|
---|
| 604 | const uint8_t offset; /* Offset in c_cc */
|
---|
| 605 | };
|
---|
| 606 |
|
---|
| 607 | enum {
|
---|
| 608 | /* Must match control_name[] and control_info[] order! */
|
---|
| 609 | CIDX_intr = 0,
|
---|
| 610 | CIDX_quit,
|
---|
| 611 | CIDX_erase,
|
---|
| 612 | CIDX_kill,
|
---|
| 613 | CIDX_eof,
|
---|
| 614 | CIDX_eol,
|
---|
| 615 | #if VEOL2
|
---|
| 616 | CIDX_eol2,
|
---|
| 617 | #endif
|
---|
| 618 | #if VSWTCH
|
---|
| 619 | CIDX_swtch,
|
---|
| 620 | #endif
|
---|
| 621 | CIDX_start,
|
---|
| 622 | CIDX_stop,
|
---|
| 623 | CIDX_susp,
|
---|
| 624 | #if VDSUSP
|
---|
| 625 | CIDX_dsusp,
|
---|
| 626 | #endif
|
---|
| 627 | #if VREPRINT
|
---|
| 628 | CIDX_rprnt,
|
---|
| 629 | #endif
|
---|
| 630 | #if VWERASE
|
---|
| 631 | CIDX_werase,
|
---|
| 632 | #endif
|
---|
| 633 | #if VLNEXT
|
---|
| 634 | CIDX_lnext,
|
---|
| 635 | #endif
|
---|
| 636 | #if VFLUSHO
|
---|
| 637 | CIDX_flush,
|
---|
| 638 | #endif
|
---|
| 639 | #if VSTATUS
|
---|
| 640 | CIDX_status,
|
---|
| 641 | #endif
|
---|
| 642 | CIDX_min,
|
---|
| 643 | CIDX_time,
|
---|
| 644 | };
|
---|
| 645 |
|
---|
| 646 | #define CI_ENTRY(n,s,o) n "\0"
|
---|
| 647 |
|
---|
| 648 | /* Name given on command line */
|
---|
| 649 | static const char control_name[] =
|
---|
| 650 | CI_ENTRY("intr", CINTR, VINTR )
|
---|
| 651 | CI_ENTRY("quit", CQUIT, VQUIT )
|
---|
| 652 | CI_ENTRY("erase", CERASE, VERASE )
|
---|
| 653 | CI_ENTRY("kill", CKILL, VKILL )
|
---|
| 654 | CI_ENTRY("eof", CEOF, VEOF )
|
---|
| 655 | CI_ENTRY("eol", CEOL, VEOL )
|
---|
| 656 | #if VEOL2
|
---|
| 657 | CI_ENTRY("eol2", CEOL2, VEOL2 )
|
---|
| 658 | #endif
|
---|
| 659 | #if VSWTCH
|
---|
| 660 | CI_ENTRY("swtch", CSWTCH, VSWTCH )
|
---|
| 661 | #endif
|
---|
| 662 | CI_ENTRY("start", CSTART, VSTART )
|
---|
| 663 | CI_ENTRY("stop", CSTOP, VSTOP )
|
---|
| 664 | CI_ENTRY("susp", CSUSP, VSUSP )
|
---|
| 665 | #if VDSUSP
|
---|
| 666 | CI_ENTRY("dsusp", CDSUSP, VDSUSP )
|
---|
| 667 | #endif
|
---|
| 668 | #if VREPRINT
|
---|
| 669 | CI_ENTRY("rprnt", CRPRNT, VREPRINT)
|
---|
| 670 | #endif
|
---|
| 671 | #if VWERASE
|
---|
| 672 | CI_ENTRY("werase", CWERASE, VWERASE )
|
---|
| 673 | #endif
|
---|
| 674 | #if VLNEXT
|
---|
| 675 | CI_ENTRY("lnext", CLNEXT, VLNEXT )
|
---|
| 676 | #endif
|
---|
| 677 | #if VFLUSHO
|
---|
| 678 | CI_ENTRY("flush", CFLUSHO, VFLUSHO )
|
---|
| 679 | #endif
|
---|
| 680 | #if VSTATUS
|
---|
| 681 | CI_ENTRY("status", CSTATUS, VSTATUS )
|
---|
| 682 | #endif
|
---|
| 683 | /* These must be last because of the display routines */
|
---|
| 684 | CI_ENTRY("min", 1, VMIN )
|
---|
| 685 | CI_ENTRY("time", 0, VTIME )
|
---|
| 686 | ;
|
---|
| 687 |
|
---|
| 688 | #undef CI_ENTRY
|
---|
| 689 | #define CI_ENTRY(n,s,o) { s, o },
|
---|
| 690 |
|
---|
| 691 | static const struct control_info control_info[] = {
|
---|
| 692 | /* This should be verbatim cut-n-paste copy of the above CI_ENTRYs */
|
---|
| 693 | CI_ENTRY("intr", CINTR, VINTR )
|
---|
| 694 | CI_ENTRY("quit", CQUIT, VQUIT )
|
---|
| 695 | CI_ENTRY("erase", CERASE, VERASE )
|
---|
| 696 | CI_ENTRY("kill", CKILL, VKILL )
|
---|
| 697 | CI_ENTRY("eof", CEOF, VEOF )
|
---|
| 698 | CI_ENTRY("eol", CEOL, VEOL )
|
---|
| 699 | #if VEOL2
|
---|
| 700 | CI_ENTRY("eol2", CEOL2, VEOL2 )
|
---|
| 701 | #endif
|
---|
| 702 | #if VSWTCH
|
---|
| 703 | CI_ENTRY("swtch", CSWTCH, VSWTCH )
|
---|
| 704 | #endif
|
---|
| 705 | CI_ENTRY("start", CSTART, VSTART )
|
---|
| 706 | CI_ENTRY("stop", CSTOP, VSTOP )
|
---|
| 707 | CI_ENTRY("susp", CSUSP, VSUSP )
|
---|
| 708 | #if VDSUSP
|
---|
| 709 | CI_ENTRY("dsusp", CDSUSP, VDSUSP )
|
---|
| 710 | #endif
|
---|
| 711 | #if VREPRINT
|
---|
| 712 | CI_ENTRY("rprnt", CRPRNT, VREPRINT)
|
---|
| 713 | #endif
|
---|
| 714 | #if VWERASE
|
---|
| 715 | CI_ENTRY("werase", CWERASE, VWERASE )
|
---|
| 716 | #endif
|
---|
| 717 | #if VLNEXT
|
---|
| 718 | CI_ENTRY("lnext", CLNEXT, VLNEXT )
|
---|
| 719 | #endif
|
---|
| 720 | #if VFLUSHO
|
---|
| 721 | CI_ENTRY("flush", CFLUSHO, VFLUSHO )
|
---|
| 722 | #endif
|
---|
| 723 | #if VSTATUS
|
---|
| 724 | CI_ENTRY("status", CSTATUS, VSTATUS )
|
---|
| 725 | #endif
|
---|
| 726 | /* These must be last because of the display routines */
|
---|
| 727 | CI_ENTRY("min", 1, VMIN )
|
---|
| 728 | CI_ENTRY("time", 0, VTIME )
|
---|
| 729 | };
|
---|
| 730 |
|
---|
| 731 | enum {
|
---|
| 732 | NUM_control_info = ARRAY_SIZE(control_info)
|
---|
| 733 | };
|
---|
| 734 |
|
---|
| 735 |
|
---|
| 736 | struct globals {
|
---|
| 737 | const char *device_name;
|
---|
| 738 | /* The width of the screen, for output wrapping */
|
---|
| 739 | unsigned max_col;
|
---|
| 740 | /* Current position, to know when to wrap */
|
---|
| 741 | unsigned current_col;
|
---|
| 742 | char buf[10];
|
---|
| 743 | } FIX_ALIASING;
|
---|
| 744 | #define G (*(struct globals*)&bb_common_bufsiz1)
|
---|
| 745 | #define INIT_G() do { \
|
---|
| 746 | G.device_name = bb_msg_standard_input; \
|
---|
| 747 | G.max_col = 80; \
|
---|
| 748 | } while (0)
|
---|
| 749 |
|
---|
| 750 |
|
---|
| 751 | /* Return a string that is the printable representation of character CH */
|
---|
| 752 | /* Adapted from 'cat' by Torbjorn Granlund */
|
---|
| 753 | static const char *visible(unsigned ch)
|
---|
| 754 | {
|
---|
| 755 | char *bpout = G.buf;
|
---|
| 756 |
|
---|
| 757 | if (ch == _POSIX_VDISABLE)
|
---|
| 758 | return "<undef>";
|
---|
| 759 |
|
---|
| 760 | if (ch >= 128) {
|
---|
| 761 | ch -= 128;
|
---|
| 762 | *bpout++ = 'M';
|
---|
| 763 | *bpout++ = '-';
|
---|
| 764 | }
|
---|
| 765 |
|
---|
| 766 | if (ch < 32) {
|
---|
| 767 | *bpout++ = '^';
|
---|
| 768 | *bpout++ = ch + 64;
|
---|
| 769 | } else if (ch < 127) {
|
---|
| 770 | *bpout++ = ch;
|
---|
| 771 | } else {
|
---|
| 772 | *bpout++ = '^';
|
---|
| 773 | *bpout++ = '?';
|
---|
| 774 | }
|
---|
| 775 |
|
---|
| 776 | *bpout = '\0';
|
---|
| 777 | return G.buf;
|
---|
| 778 | }
|
---|
| 779 |
|
---|
| 780 | static tcflag_t *mode_type_flag(unsigned type, const struct termios *mode)
|
---|
| 781 | {
|
---|
| 782 | static const uint8_t tcflag_offsets[] ALIGN1 = {
|
---|
| 783 | offsetof(struct termios, c_cflag), /* control */
|
---|
| 784 | offsetof(struct termios, c_iflag), /* input */
|
---|
| 785 | offsetof(struct termios, c_oflag), /* output */
|
---|
| 786 | offsetof(struct termios, c_lflag) /* local */
|
---|
| 787 | };
|
---|
| 788 |
|
---|
| 789 | if (type <= local) {
|
---|
| 790 | return (tcflag_t*) (((char*)mode) + tcflag_offsets[type]);
|
---|
| 791 | }
|
---|
| 792 | return NULL;
|
---|
| 793 | }
|
---|
| 794 |
|
---|
| 795 | static void set_speed_or_die(enum speed_setting type, const char *arg,
|
---|
| 796 | struct termios *mode)
|
---|
| 797 | {
|
---|
| 798 | speed_t baud;
|
---|
| 799 |
|
---|
| 800 | baud = tty_value_to_baud(xatou(arg));
|
---|
| 801 |
|
---|
| 802 | if (type != output_speed) { /* either input or both */
|
---|
| 803 | cfsetispeed(mode, baud);
|
---|
| 804 | }
|
---|
| 805 | if (type != input_speed) { /* either output or both */
|
---|
| 806 | cfsetospeed(mode, baud);
|
---|
| 807 | }
|
---|
| 808 | }
|
---|
| 809 |
|
---|
| 810 | static NORETURN void perror_on_device_and_die(const char *fmt)
|
---|
| 811 | {
|
---|
| 812 | bb_perror_msg_and_die(fmt, G.device_name);
|
---|
| 813 | }
|
---|
| 814 |
|
---|
| 815 | static void perror_on_device(const char *fmt)
|
---|
| 816 | {
|
---|
| 817 | bb_perror_msg(fmt, G.device_name);
|
---|
| 818 | }
|
---|
| 819 |
|
---|
| 820 | /* Print format string MESSAGE and optional args.
|
---|
| 821 | Wrap to next line first if it won't fit.
|
---|
| 822 | Print a space first unless MESSAGE will start a new line */
|
---|
| 823 | static void wrapf(const char *message, ...)
|
---|
| 824 | {
|
---|
| 825 | char buf[128];
|
---|
| 826 | va_list args;
|
---|
| 827 | unsigned buflen;
|
---|
| 828 |
|
---|
| 829 | va_start(args, message);
|
---|
| 830 | buflen = vsnprintf(buf, sizeof(buf), message, args);
|
---|
| 831 | va_end(args);
|
---|
| 832 | /* We seem to be called only with suitable lengths, but check if
|
---|
| 833 | somebody failed to adhere to this assumption just to be sure. */
|
---|
| 834 | if (!buflen || buflen >= sizeof(buf)) return;
|
---|
| 835 |
|
---|
| 836 | if (G.current_col > 0) {
|
---|
| 837 | G.current_col++;
|
---|
| 838 | if (buf[0] != '\n') {
|
---|
| 839 | if (G.current_col + buflen >= G.max_col) {
|
---|
| 840 | bb_putchar('\n');
|
---|
| 841 | G.current_col = 0;
|
---|
| 842 | } else
|
---|
| 843 | bb_putchar(' ');
|
---|
| 844 | }
|
---|
| 845 | }
|
---|
| 846 | fputs(buf, stdout);
|
---|
| 847 | G.current_col += buflen;
|
---|
| 848 | if (buf[buflen-1] == '\n')
|
---|
| 849 | G.current_col = 0;
|
---|
| 850 | }
|
---|
| 851 |
|
---|
| 852 | static void newline(void)
|
---|
| 853 | {
|
---|
| 854 | if (G.current_col != 0)
|
---|
| 855 | wrapf("\n");
|
---|
| 856 | }
|
---|
| 857 |
|
---|
| 858 | #ifdef TIOCGWINSZ
|
---|
| 859 | static void set_window_size(int rows, int cols)
|
---|
| 860 | {
|
---|
| 861 | struct winsize win = { 0, 0, 0, 0 };
|
---|
| 862 |
|
---|
| 863 | if (ioctl(STDIN_FILENO, TIOCGWINSZ, &win)) {
|
---|
| 864 | if (errno != EINVAL) {
|
---|
| 865 | goto bail;
|
---|
| 866 | }
|
---|
| 867 | memset(&win, 0, sizeof(win));
|
---|
| 868 | }
|
---|
| 869 |
|
---|
| 870 | if (rows >= 0)
|
---|
| 871 | win.ws_row = rows;
|
---|
| 872 | if (cols >= 0)
|
---|
| 873 | win.ws_col = cols;
|
---|
| 874 |
|
---|
| 875 | if (ioctl(STDIN_FILENO, TIOCSWINSZ, (char *) &win))
|
---|
| 876 | bail:
|
---|
| 877 | perror_on_device("%s");
|
---|
| 878 | }
|
---|
| 879 | #endif
|
---|
| 880 |
|
---|
| 881 | static void display_window_size(int fancy)
|
---|
| 882 | {
|
---|
| 883 | const char *fmt_str = "%s\0%s: no size information for this device";
|
---|
| 884 | unsigned width, height;
|
---|
| 885 |
|
---|
| 886 | if (get_terminal_width_height(STDIN_FILENO, &width, &height)) {
|
---|
| 887 | if ((errno != EINVAL) || ((fmt_str += 2), !fancy)) {
|
---|
| 888 | perror_on_device(fmt_str);
|
---|
| 889 | }
|
---|
| 890 | } else {
|
---|
| 891 | wrapf(fancy ? "rows %u; columns %u;" : "%u %u\n",
|
---|
| 892 | height, width);
|
---|
| 893 | }
|
---|
| 894 | }
|
---|
| 895 |
|
---|
| 896 | static const struct suffix_mult stty_suffixes[] = {
|
---|
| 897 | { "b", 512 },
|
---|
| 898 | { "k", 1024 },
|
---|
| 899 | { "B", 1024 },
|
---|
| 900 | { "", 0 }
|
---|
| 901 | };
|
---|
| 902 |
|
---|
| 903 | static const struct mode_info *find_mode(const char *name)
|
---|
| 904 | {
|
---|
| 905 | int i = index_in_strings(mode_name, name);
|
---|
| 906 | return i >= 0 ? &mode_info[i] : NULL;
|
---|
| 907 | }
|
---|
| 908 |
|
---|
| 909 | static const struct control_info *find_control(const char *name)
|
---|
| 910 | {
|
---|
| 911 | int i = index_in_strings(control_name, name);
|
---|
| 912 | return i >= 0 ? &control_info[i] : NULL;
|
---|
| 913 | }
|
---|
| 914 |
|
---|
| 915 | enum {
|
---|
| 916 | param_need_arg = 0x80,
|
---|
| 917 | param_line = 1 | 0x80,
|
---|
| 918 | param_rows = 2 | 0x80,
|
---|
| 919 | param_cols = 3 | 0x80,
|
---|
| 920 | param_columns = 4 | 0x80,
|
---|
| 921 | param_size = 5,
|
---|
| 922 | param_speed = 6,
|
---|
| 923 | param_ispeed = 7 | 0x80,
|
---|
| 924 | param_ospeed = 8 | 0x80,
|
---|
| 925 | };
|
---|
| 926 |
|
---|
| 927 | static int find_param(const char *name)
|
---|
| 928 | {
|
---|
| 929 | static const char params[] ALIGN1 =
|
---|
| 930 | "line\0" /* 1 */
|
---|
| 931 | "rows\0" /* 2 */
|
---|
| 932 | "cols\0" /* 3 */
|
---|
| 933 | "columns\0" /* 4 */
|
---|
| 934 | "size\0" /* 5 */
|
---|
| 935 | "speed\0" /* 6 */
|
---|
| 936 | "ispeed\0"
|
---|
| 937 | "ospeed\0";
|
---|
| 938 | int i = index_in_strings(params, name) + 1;
|
---|
| 939 | if (i == 0)
|
---|
| 940 | return 0;
|
---|
| 941 | if (i != 5 && i != 6)
|
---|
| 942 | i |= 0x80;
|
---|
| 943 | return i;
|
---|
| 944 | }
|
---|
| 945 |
|
---|
| 946 | static int recover_mode(const char *arg, struct termios *mode)
|
---|
| 947 | {
|
---|
| 948 | int i, n;
|
---|
| 949 | unsigned chr;
|
---|
| 950 | unsigned long iflag, oflag, cflag, lflag;
|
---|
| 951 |
|
---|
| 952 | /* Scan into temporaries since it is too much trouble to figure out
|
---|
| 953 | the right format for 'tcflag_t' */
|
---|
| 954 | if (sscanf(arg, "%lx:%lx:%lx:%lx%n",
|
---|
| 955 | &iflag, &oflag, &cflag, &lflag, &n) != 4)
|
---|
| 956 | return 0;
|
---|
| 957 | mode->c_iflag = iflag;
|
---|
| 958 | mode->c_oflag = oflag;
|
---|
| 959 | mode->c_cflag = cflag;
|
---|
| 960 | mode->c_lflag = lflag;
|
---|
| 961 | arg += n;
|
---|
| 962 | for (i = 0; i < NCCS; ++i) {
|
---|
| 963 | if (sscanf(arg, ":%x%n", &chr, &n) != 1)
|
---|
| 964 | return 0;
|
---|
| 965 | mode->c_cc[i] = chr;
|
---|
| 966 | arg += n;
|
---|
| 967 | }
|
---|
| 968 |
|
---|
| 969 | /* Fail if there are too many fields */
|
---|
| 970 | if (*arg != '\0')
|
---|
| 971 | return 0;
|
---|
| 972 |
|
---|
| 973 | return 1;
|
---|
| 974 | }
|
---|
| 975 |
|
---|
| 976 | static void display_recoverable(const struct termios *mode,
|
---|
| 977 | int UNUSED_PARAM dummy)
|
---|
| 978 | {
|
---|
| 979 | int i;
|
---|
| 980 | printf("%lx:%lx:%lx:%lx",
|
---|
| 981 | (unsigned long) mode->c_iflag, (unsigned long) mode->c_oflag,
|
---|
| 982 | (unsigned long) mode->c_cflag, (unsigned long) mode->c_lflag);
|
---|
| 983 | for (i = 0; i < NCCS; ++i)
|
---|
| 984 | printf(":%x", (unsigned int) mode->c_cc[i]);
|
---|
| 985 | bb_putchar('\n');
|
---|
| 986 | }
|
---|
| 987 |
|
---|
| 988 | static void display_speed(const struct termios *mode, int fancy)
|
---|
| 989 | {
|
---|
| 990 | //____________________ 01234567 8 9
|
---|
| 991 | const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;";
|
---|
| 992 | unsigned long ispeed, ospeed;
|
---|
| 993 |
|
---|
| 994 | ospeed = ispeed = cfgetispeed(mode);
|
---|
| 995 | if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) {
|
---|
| 996 | ispeed = ospeed; /* in case ispeed was 0 */
|
---|
| 997 | //________ 0123 4 5 6 7 8 9
|
---|
| 998 | fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;";
|
---|
| 999 | }
|
---|
| 1000 | if (fancy) fmt_str += 9;
|
---|
| 1001 | wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed));
|
---|
| 1002 | }
|
---|
| 1003 |
|
---|
| 1004 | static void do_display(const struct termios *mode, int all)
|
---|
| 1005 | {
|
---|
| 1006 | int i;
|
---|
| 1007 | tcflag_t *bitsp;
|
---|
| 1008 | unsigned long mask;
|
---|
| 1009 | int prev_type = control;
|
---|
| 1010 |
|
---|
| 1011 | display_speed(mode, 1);
|
---|
| 1012 | if (all)
|
---|
| 1013 | display_window_size(1);
|
---|
| 1014 | #ifdef HAVE_C_LINE
|
---|
| 1015 | wrapf("line = %u;\n", mode->c_line);
|
---|
| 1016 | #else
|
---|
| 1017 | newline();
|
---|
| 1018 | #endif
|
---|
| 1019 |
|
---|
| 1020 | for (i = 0; i != CIDX_min; ++i) {
|
---|
| 1021 | /* If swtch is the same as susp, don't print both */
|
---|
| 1022 | #if VSWTCH == VSUSP
|
---|
| 1023 | if (i == CIDX_swtch)
|
---|
| 1024 | continue;
|
---|
| 1025 | #endif
|
---|
| 1026 | /* If eof uses the same slot as min, only print whichever applies */
|
---|
| 1027 | #if VEOF == VMIN
|
---|
| 1028 | if (!(mode->c_lflag & ICANON)
|
---|
| 1029 | && (i == CIDX_eof || i == CIDX_eol)
|
---|
| 1030 | ) {
|
---|
| 1031 | continue;
|
---|
| 1032 | }
|
---|
| 1033 | #endif
|
---|
| 1034 | wrapf("%s = %s;", nth_string(control_name, i),
|
---|
| 1035 | visible(mode->c_cc[control_info[i].offset]));
|
---|
| 1036 | }
|
---|
| 1037 | #if VEOF == VMIN
|
---|
| 1038 | if ((mode->c_lflag & ICANON) == 0)
|
---|
| 1039 | #endif
|
---|
| 1040 | wrapf("min = %u; time = %u;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
|
---|
| 1041 | newline();
|
---|
| 1042 |
|
---|
| 1043 | for (i = 0; i < NUM_mode_info; ++i) {
|
---|
| 1044 | if (mode_info[i].flags & OMIT)
|
---|
| 1045 | continue;
|
---|
| 1046 | if (mode_info[i].type != prev_type) {
|
---|
| 1047 | newline();
|
---|
| 1048 | prev_type = mode_info[i].type;
|
---|
| 1049 | }
|
---|
| 1050 |
|
---|
| 1051 | bitsp = mode_type_flag(mode_info[i].type, mode);
|
---|
| 1052 | mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits;
|
---|
| 1053 | if ((*bitsp & mask) == mode_info[i].bits) {
|
---|
| 1054 | if (all || (mode_info[i].flags & SANE_UNSET))
|
---|
| 1055 | wrapf("-%s"+1, nth_string(mode_name, i));
|
---|
| 1056 | } else {
|
---|
| 1057 | if ((all && mode_info[i].flags & REV)
|
---|
| 1058 | || (!all && (mode_info[i].flags & (SANE_SET | REV)) == (SANE_SET | REV))
|
---|
| 1059 | ) {
|
---|
| 1060 | wrapf("-%s", nth_string(mode_name, i));
|
---|
| 1061 | }
|
---|
| 1062 | }
|
---|
| 1063 | }
|
---|
| 1064 | newline();
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
| 1067 | static void sane_mode(struct termios *mode)
|
---|
| 1068 | {
|
---|
| 1069 | int i;
|
---|
| 1070 | tcflag_t *bitsp;
|
---|
| 1071 |
|
---|
| 1072 | for (i = 0; i < NUM_control_info; ++i) {
|
---|
| 1073 | #if VMIN == VEOF
|
---|
| 1074 | if (i == CIDX_min)
|
---|
| 1075 | break;
|
---|
| 1076 | #endif
|
---|
| 1077 | mode->c_cc[control_info[i].offset] = control_info[i].saneval;
|
---|
| 1078 | }
|
---|
| 1079 |
|
---|
| 1080 | for (i = 0; i < NUM_mode_info; ++i) {
|
---|
| 1081 | if (mode_info[i].flags & SANE_SET) {
|
---|
| 1082 | bitsp = mode_type_flag(mode_info[i].type, mode);
|
---|
| 1083 | *bitsp = (*bitsp & ~((unsigned long)mode_info[i].mask))
|
---|
| 1084 | | mode_info[i].bits;
|
---|
| 1085 | } else if (mode_info[i].flags & SANE_UNSET) {
|
---|
| 1086 | bitsp = mode_type_flag(mode_info[i].type, mode);
|
---|
| 1087 | *bitsp = *bitsp & ~((unsigned long)mode_info[i].mask)
|
---|
| 1088 | & ~mode_info[i].bits;
|
---|
| 1089 | }
|
---|
| 1090 | }
|
---|
| 1091 | }
|
---|
| 1092 |
|
---|
| 1093 | static void set_mode(const struct mode_info *info, int reversed,
|
---|
| 1094 | struct termios *mode)
|
---|
| 1095 | {
|
---|
| 1096 | tcflag_t *bitsp;
|
---|
| 1097 |
|
---|
| 1098 | bitsp = mode_type_flag(info->type, mode);
|
---|
| 1099 |
|
---|
| 1100 | if (bitsp) {
|
---|
| 1101 | if (reversed)
|
---|
| 1102 | *bitsp = *bitsp & ~info->mask & ~info->bits;
|
---|
| 1103 | else
|
---|
| 1104 | *bitsp = (*bitsp & ~info->mask) | info->bits;
|
---|
| 1105 | return;
|
---|
| 1106 | }
|
---|
| 1107 |
|
---|
| 1108 | /* Combination mode */
|
---|
| 1109 | if (info == &mode_info[IDX_evenp] || info == &mode_info[IDX_parity]) {
|
---|
| 1110 | if (reversed)
|
---|
| 1111 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1112 | else
|
---|
| 1113 | mode->c_cflag = (mode->c_cflag & ~PARODD & ~CSIZE) | PARENB | CS7;
|
---|
| 1114 | } else if (info == &mode_info[IDX_oddp]) {
|
---|
| 1115 | if (reversed)
|
---|
| 1116 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1117 | else
|
---|
| 1118 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARODD | PARENB;
|
---|
| 1119 | } else if (info == &mode_info[IDX_nl]) {
|
---|
| 1120 | if (reversed) {
|
---|
| 1121 | mode->c_iflag = (mode->c_iflag | ICRNL) & ~INLCR & ~IGNCR;
|
---|
| 1122 | mode->c_oflag = (mode->c_oflag | ONLCR) & ~OCRNL & ~ONLRET;
|
---|
| 1123 | } else {
|
---|
| 1124 | mode->c_iflag = mode->c_iflag & ~ICRNL;
|
---|
| 1125 | if (ONLCR) mode->c_oflag = mode->c_oflag & ~ONLCR;
|
---|
| 1126 | }
|
---|
| 1127 | } else if (info == &mode_info[IDX_ek]) {
|
---|
| 1128 | mode->c_cc[VERASE] = CERASE;
|
---|
| 1129 | mode->c_cc[VKILL] = CKILL;
|
---|
| 1130 | } else if (info == &mode_info[IDX_sane]) {
|
---|
| 1131 | sane_mode(mode);
|
---|
| 1132 | } else if (info == &mode_info[IDX_cbreak]) {
|
---|
| 1133 | if (reversed)
|
---|
| 1134 | mode->c_lflag |= ICANON;
|
---|
| 1135 | else
|
---|
| 1136 | mode->c_lflag &= ~ICANON;
|
---|
| 1137 | } else if (info == &mode_info[IDX_pass8]) {
|
---|
| 1138 | if (reversed) {
|
---|
| 1139 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
|
---|
| 1140 | mode->c_iflag |= ISTRIP;
|
---|
| 1141 | } else {
|
---|
| 1142 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1143 | mode->c_iflag &= ~ISTRIP;
|
---|
| 1144 | }
|
---|
| 1145 | } else if (info == &mode_info[IDX_litout]) {
|
---|
| 1146 | if (reversed) {
|
---|
| 1147 | mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
|
---|
| 1148 | mode->c_iflag |= ISTRIP;
|
---|
| 1149 | mode->c_oflag |= OPOST;
|
---|
| 1150 | } else {
|
---|
| 1151 | mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
|
---|
| 1152 | mode->c_iflag &= ~ISTRIP;
|
---|
| 1153 | mode->c_oflag &= ~OPOST;
|
---|
| 1154 | }
|
---|
| 1155 | } else if (info == &mode_info[IDX_raw] || info == &mode_info[IDX_cooked]) {
|
---|
| 1156 | if ((info == &mode_info[IDX_raw] && reversed)
|
---|
| 1157 | || (info == &mode_info[IDX_cooked] && !reversed)
|
---|
| 1158 | ) {
|
---|
| 1159 | /* Cooked mode */
|
---|
| 1160 | mode->c_iflag |= BRKINT | IGNPAR | ISTRIP | ICRNL | IXON;
|
---|
| 1161 | mode->c_oflag |= OPOST;
|
---|
| 1162 | mode->c_lflag |= ISIG | ICANON;
|
---|
| 1163 | #if VMIN == VEOF
|
---|
| 1164 | mode->c_cc[VEOF] = CEOF;
|
---|
| 1165 | #endif
|
---|
| 1166 | #if VTIME == VEOL
|
---|
| 1167 | mode->c_cc[VEOL] = CEOL;
|
---|
| 1168 | #endif
|
---|
| 1169 | } else {
|
---|
| 1170 | /* Raw mode */
|
---|
| 1171 | mode->c_iflag = 0;
|
---|
| 1172 | mode->c_oflag &= ~OPOST;
|
---|
| 1173 | mode->c_lflag &= ~(ISIG | ICANON | XCASE);
|
---|
| 1174 | mode->c_cc[VMIN] = 1;
|
---|
| 1175 | mode->c_cc[VTIME] = 0;
|
---|
| 1176 | }
|
---|
| 1177 | }
|
---|
| 1178 | #if IXANY
|
---|
| 1179 | else if (info == &mode_info[IDX_decctlq]) {
|
---|
| 1180 | if (reversed)
|
---|
| 1181 | mode->c_iflag |= IXANY;
|
---|
| 1182 | else
|
---|
| 1183 | mode->c_iflag &= ~IXANY;
|
---|
| 1184 | }
|
---|
| 1185 | #endif
|
---|
| 1186 | #if TABDLY
|
---|
| 1187 | else if (info == &mode_info[IDX_tabs]) {
|
---|
| 1188 | if (reversed)
|
---|
| 1189 | mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB3;
|
---|
| 1190 | else
|
---|
| 1191 | mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB0;
|
---|
| 1192 | }
|
---|
| 1193 | #endif
|
---|
| 1194 | #if OXTABS
|
---|
| 1195 | else if (info == &mode_info[IDX_tabs]) {
|
---|
| 1196 | if (reversed)
|
---|
| 1197 | mode->c_oflag |= OXTABS;
|
---|
| 1198 | else
|
---|
| 1199 | mode->c_oflag &= ~OXTABS;
|
---|
| 1200 | }
|
---|
| 1201 | #endif
|
---|
| 1202 | #if XCASE && IUCLC && OLCUC
|
---|
| 1203 | else if (info==&mode_info[IDX_lcase] || info==&mode_info[IDX_LCASE]) {
|
---|
| 1204 | if (reversed) {
|
---|
| 1205 | mode->c_lflag &= ~XCASE;
|
---|
| 1206 | mode->c_iflag &= ~IUCLC;
|
---|
| 1207 | mode->c_oflag &= ~OLCUC;
|
---|
| 1208 | } else {
|
---|
| 1209 | mode->c_lflag |= XCASE;
|
---|
| 1210 | mode->c_iflag |= IUCLC;
|
---|
| 1211 | mode->c_oflag |= OLCUC;
|
---|
| 1212 | }
|
---|
| 1213 | }
|
---|
| 1214 | #endif
|
---|
| 1215 | else if (info == &mode_info[IDX_crt]) {
|
---|
| 1216 | mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
|
---|
| 1217 | } else if (info == &mode_info[IDX_dec]) {
|
---|
| 1218 | mode->c_cc[VINTR] = 3; /* ^C */
|
---|
| 1219 | mode->c_cc[VERASE] = 127; /* DEL */
|
---|
| 1220 | mode->c_cc[VKILL] = 21; /* ^U */
|
---|
| 1221 | mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
|
---|
| 1222 | if (IXANY) mode->c_iflag &= ~IXANY;
|
---|
| 1223 | }
|
---|
| 1224 | }
|
---|
| 1225 |
|
---|
| 1226 | static void set_control_char_or_die(const struct control_info *info,
|
---|
| 1227 | const char *arg, struct termios *mode)
|
---|
| 1228 | {
|
---|
| 1229 | unsigned char value;
|
---|
| 1230 |
|
---|
| 1231 | if (info == &control_info[CIDX_min] || info == &control_info[CIDX_time])
|
---|
| 1232 | value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
|
---|
| 1233 | else if (arg[0] == '\0' || arg[1] == '\0')
|
---|
| 1234 | value = arg[0];
|
---|
| 1235 | else if (strcmp(arg, "^-") == 0 || strcmp(arg, "undef") == 0)
|
---|
| 1236 | value = _POSIX_VDISABLE;
|
---|
| 1237 | else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */
|
---|
| 1238 | value = arg[1] & 0x1f; /* Non-letters get weird results */
|
---|
| 1239 | if (arg[1] == '?')
|
---|
| 1240 | value = 127;
|
---|
| 1241 | } else
|
---|
| 1242 | value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
|
---|
| 1243 | mode->c_cc[info->offset] = value;
|
---|
| 1244 | }
|
---|
| 1245 |
|
---|
| 1246 | #define STTY_require_set_attr (1 << 0)
|
---|
| 1247 | #define STTY_speed_was_set (1 << 1)
|
---|
| 1248 | #define STTY_verbose_output (1 << 2)
|
---|
| 1249 | #define STTY_recoverable_output (1 << 3)
|
---|
| 1250 | #define STTY_noargs (1 << 4)
|
---|
| 1251 |
|
---|
| 1252 | int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 1253 | int stty_main(int argc UNUSED_PARAM, char **argv)
|
---|
| 1254 | {
|
---|
| 1255 | struct termios mode;
|
---|
| 1256 | void (*output_func)(const struct termios *, int);
|
---|
| 1257 | const char *file_name = NULL;
|
---|
| 1258 | int display_all = 0;
|
---|
| 1259 | int stty_state;
|
---|
| 1260 | int k;
|
---|
| 1261 |
|
---|
| 1262 | INIT_G();
|
---|
| 1263 |
|
---|
| 1264 | stty_state = STTY_noargs;
|
---|
| 1265 | output_func = do_display;
|
---|
| 1266 |
|
---|
| 1267 | /* First pass: only parse/verify command line params */
|
---|
| 1268 | k = 0;
|
---|
| 1269 | while (argv[++k]) {
|
---|
| 1270 | const struct mode_info *mp;
|
---|
| 1271 | const struct control_info *cp;
|
---|
| 1272 | const char *arg = argv[k];
|
---|
| 1273 | const char *argnext = argv[k+1];
|
---|
| 1274 | int param;
|
---|
| 1275 |
|
---|
| 1276 | if (arg[0] == '-') {
|
---|
| 1277 | int i;
|
---|
| 1278 | mp = find_mode(arg+1);
|
---|
| 1279 | if (mp) {
|
---|
| 1280 | if (!(mp->flags & REV))
|
---|
| 1281 | goto invalid_argument;
|
---|
| 1282 | stty_state &= ~STTY_noargs;
|
---|
| 1283 | continue;
|
---|
| 1284 | }
|
---|
| 1285 | /* It is an option - parse it */
|
---|
| 1286 | i = 0;
|
---|
| 1287 | while (arg[++i]) {
|
---|
| 1288 | switch (arg[i]) {
|
---|
| 1289 | case 'a':
|
---|
| 1290 | stty_state |= STTY_verbose_output;
|
---|
| 1291 | output_func = do_display;
|
---|
| 1292 | display_all = 1;
|
---|
| 1293 | break;
|
---|
| 1294 | case 'g':
|
---|
| 1295 | stty_state |= STTY_recoverable_output;
|
---|
| 1296 | output_func = display_recoverable;
|
---|
| 1297 | break;
|
---|
| 1298 | case 'F':
|
---|
| 1299 | if (file_name)
|
---|
| 1300 | bb_error_msg_and_die("only one device may be specified");
|
---|
| 1301 | file_name = &arg[i+1]; /* "-Fdevice" ? */
|
---|
| 1302 | if (!file_name[0]) { /* nope, "-F device" */
|
---|
| 1303 | int p = k+1; /* argv[p] is argnext */
|
---|
| 1304 | file_name = argnext;
|
---|
| 1305 | if (!file_name)
|
---|
| 1306 | bb_error_msg_and_die(bb_msg_requires_arg, "-F");
|
---|
| 1307 | /* remove -F param from arg[vc] */
|
---|
| 1308 | while (argv[p]) {
|
---|
| 1309 | argv[p] = argv[p+1];
|
---|
| 1310 | ++p;
|
---|
| 1311 | }
|
---|
| 1312 | }
|
---|
| 1313 | goto end_option;
|
---|
| 1314 | default:
|
---|
| 1315 | goto invalid_argument;
|
---|
| 1316 | }
|
---|
| 1317 | }
|
---|
| 1318 | end_option:
|
---|
| 1319 | continue;
|
---|
| 1320 | }
|
---|
| 1321 |
|
---|
| 1322 | mp = find_mode(arg);
|
---|
| 1323 | if (mp) {
|
---|
| 1324 | stty_state &= ~STTY_noargs;
|
---|
| 1325 | continue;
|
---|
| 1326 | }
|
---|
| 1327 |
|
---|
| 1328 | cp = find_control(arg);
|
---|
| 1329 | if (cp) {
|
---|
| 1330 | if (!argnext)
|
---|
| 1331 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1332 | /* called for the side effect of xfunc death only */
|
---|
| 1333 | set_control_char_or_die(cp, argnext, &mode);
|
---|
| 1334 | stty_state &= ~STTY_noargs;
|
---|
| 1335 | ++k;
|
---|
| 1336 | continue;
|
---|
| 1337 | }
|
---|
| 1338 |
|
---|
| 1339 | param = find_param(arg);
|
---|
| 1340 | if (param & param_need_arg) {
|
---|
| 1341 | if (!argnext)
|
---|
| 1342 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1343 | ++k;
|
---|
| 1344 | }
|
---|
| 1345 |
|
---|
| 1346 | switch (param) {
|
---|
| 1347 | #ifdef HAVE_C_LINE
|
---|
| 1348 | case param_line:
|
---|
| 1349 | # ifndef TIOCGWINSZ
|
---|
| 1350 | xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
|
---|
| 1351 | break;
|
---|
| 1352 | # endif /* else fall-through */
|
---|
| 1353 | #endif
|
---|
| 1354 | #ifdef TIOCGWINSZ
|
---|
| 1355 | case param_rows:
|
---|
| 1356 | case param_cols:
|
---|
| 1357 | case param_columns:
|
---|
| 1358 | xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
|
---|
| 1359 | break;
|
---|
| 1360 | case param_size:
|
---|
| 1361 | #endif
|
---|
| 1362 | case param_speed:
|
---|
| 1363 | break;
|
---|
| 1364 | case param_ispeed:
|
---|
| 1365 | /* called for the side effect of xfunc death only */
|
---|
| 1366 | set_speed_or_die(input_speed, argnext, &mode);
|
---|
| 1367 | break;
|
---|
| 1368 | case param_ospeed:
|
---|
| 1369 | /* called for the side effect of xfunc death only */
|
---|
| 1370 | set_speed_or_die(output_speed, argnext, &mode);
|
---|
| 1371 | break;
|
---|
| 1372 | default:
|
---|
| 1373 | if (recover_mode(arg, &mode) == 1) break;
|
---|
| 1374 | if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) break;
|
---|
| 1375 | invalid_argument:
|
---|
| 1376 | bb_error_msg_and_die("invalid argument '%s'", arg);
|
---|
| 1377 | }
|
---|
| 1378 | stty_state &= ~STTY_noargs;
|
---|
| 1379 | }
|
---|
| 1380 |
|
---|
| 1381 | /* Specifying both -a and -g is an error */
|
---|
| 1382 | if ((stty_state & (STTY_verbose_output | STTY_recoverable_output)) ==
|
---|
| 1383 | (STTY_verbose_output | STTY_recoverable_output))
|
---|
| 1384 | bb_error_msg_and_die("verbose and stty-readable output styles are mutually exclusive");
|
---|
| 1385 | /* Specifying -a or -g with non-options is an error */
|
---|
| 1386 | if (!(stty_state & STTY_noargs)
|
---|
| 1387 | && (stty_state & (STTY_verbose_output | STTY_recoverable_output))
|
---|
| 1388 | ) {
|
---|
| 1389 | bb_error_msg_and_die("modes may not be set when specifying an output style");
|
---|
| 1390 | }
|
---|
| 1391 |
|
---|
| 1392 | /* Now it is safe to start doing things */
|
---|
| 1393 | if (file_name) {
|
---|
| 1394 | G.device_name = file_name;
|
---|
| 1395 | xmove_fd(xopen_nonblocking(G.device_name), STDIN_FILENO);
|
---|
| 1396 | ndelay_off(STDIN_FILENO);
|
---|
| 1397 | }
|
---|
| 1398 |
|
---|
| 1399 | /* Initialize to all zeroes so there is no risk memcmp will report a
|
---|
| 1400 | spurious difference in an uninitialized portion of the structure */
|
---|
| 1401 | memset(&mode, 0, sizeof(mode));
|
---|
| 1402 | if (tcgetattr(STDIN_FILENO, &mode))
|
---|
| 1403 | perror_on_device_and_die("%s");
|
---|
| 1404 |
|
---|
| 1405 | if (stty_state & (STTY_verbose_output | STTY_recoverable_output | STTY_noargs)) {
|
---|
| 1406 | get_terminal_width_height(STDOUT_FILENO, &G.max_col, NULL);
|
---|
| 1407 | output_func(&mode, display_all);
|
---|
| 1408 | return EXIT_SUCCESS;
|
---|
| 1409 | }
|
---|
| 1410 |
|
---|
| 1411 | /* Second pass: perform actions */
|
---|
| 1412 | k = 0;
|
---|
| 1413 | while (argv[++k]) {
|
---|
| 1414 | const struct mode_info *mp;
|
---|
| 1415 | const struct control_info *cp;
|
---|
| 1416 | const char *arg = argv[k];
|
---|
| 1417 | const char *argnext = argv[k+1];
|
---|
| 1418 | int param;
|
---|
| 1419 |
|
---|
| 1420 | if (arg[0] == '-') {
|
---|
| 1421 | mp = find_mode(arg+1);
|
---|
| 1422 | if (mp) {
|
---|
| 1423 | set_mode(mp, 1 /* reversed */, &mode);
|
---|
| 1424 | stty_state |= STTY_require_set_attr;
|
---|
| 1425 | }
|
---|
| 1426 | /* It is an option - already parsed. Skip it */
|
---|
| 1427 | continue;
|
---|
| 1428 | }
|
---|
| 1429 |
|
---|
| 1430 | mp = find_mode(arg);
|
---|
| 1431 | if (mp) {
|
---|
| 1432 | set_mode(mp, 0 /* non-reversed */, &mode);
|
---|
| 1433 | stty_state |= STTY_require_set_attr;
|
---|
| 1434 | continue;
|
---|
| 1435 | }
|
---|
| 1436 |
|
---|
| 1437 | cp = find_control(arg);
|
---|
| 1438 | if (cp) {
|
---|
| 1439 | ++k;
|
---|
| 1440 | set_control_char_or_die(cp, argnext, &mode);
|
---|
| 1441 | stty_state |= STTY_require_set_attr;
|
---|
| 1442 | continue;
|
---|
| 1443 | }
|
---|
| 1444 |
|
---|
| 1445 | param = find_param(arg);
|
---|
| 1446 | if (param & param_need_arg) {
|
---|
| 1447 | ++k;
|
---|
| 1448 | }
|
---|
| 1449 |
|
---|
| 1450 | switch (param) {
|
---|
| 1451 | #ifdef HAVE_C_LINE
|
---|
| 1452 | case param_line:
|
---|
| 1453 | mode.c_line = xatoul_sfx(argnext, stty_suffixes);
|
---|
| 1454 | stty_state |= STTY_require_set_attr;
|
---|
| 1455 | break;
|
---|
| 1456 | #endif
|
---|
| 1457 | #ifdef TIOCGWINSZ
|
---|
| 1458 | case param_cols:
|
---|
| 1459 | case param_columns:
|
---|
| 1460 | set_window_size(-1, xatoul_sfx(argnext, stty_suffixes));
|
---|
| 1461 | break;
|
---|
| 1462 | case param_size:
|
---|
| 1463 | display_window_size(0);
|
---|
| 1464 | break;
|
---|
| 1465 | case param_rows:
|
---|
| 1466 | set_window_size(xatoul_sfx(argnext, stty_suffixes), -1);
|
---|
| 1467 | break;
|
---|
| 1468 | #endif
|
---|
| 1469 | case param_speed:
|
---|
| 1470 | display_speed(&mode, 0);
|
---|
| 1471 | break;
|
---|
| 1472 | case param_ispeed:
|
---|
| 1473 | set_speed_or_die(input_speed, argnext, &mode);
|
---|
| 1474 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1475 | break;
|
---|
| 1476 | case param_ospeed:
|
---|
| 1477 | set_speed_or_die(output_speed, argnext, &mode);
|
---|
| 1478 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1479 | break;
|
---|
| 1480 | default:
|
---|
| 1481 | if (recover_mode(arg, &mode) == 1)
|
---|
| 1482 | stty_state |= STTY_require_set_attr;
|
---|
| 1483 | else /* true: if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) */{
|
---|
| 1484 | set_speed_or_die(both_speeds, arg, &mode);
|
---|
| 1485 | stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
|
---|
| 1486 | } /* else - impossible (caught in the first pass):
|
---|
| 1487 | bb_error_msg_and_die("invalid argument '%s'", arg); */
|
---|
| 1488 | }
|
---|
| 1489 | }
|
---|
| 1490 |
|
---|
| 1491 | if (stty_state & STTY_require_set_attr) {
|
---|
| 1492 | struct termios new_mode;
|
---|
| 1493 |
|
---|
| 1494 | if (tcsetattr(STDIN_FILENO, TCSADRAIN, &mode))
|
---|
| 1495 | perror_on_device_and_die("%s");
|
---|
| 1496 |
|
---|
| 1497 | /* POSIX (according to Zlotnick's book) tcsetattr returns zero if
|
---|
| 1498 | it performs *any* of the requested operations. This means it
|
---|
| 1499 | can report 'success' when it has actually failed to perform
|
---|
| 1500 | some proper subset of the requested operations. To detect
|
---|
| 1501 | this partial failure, get the current terminal attributes and
|
---|
| 1502 | compare them to the requested ones */
|
---|
| 1503 |
|
---|
| 1504 | /* Initialize to all zeroes so there is no risk memcmp will report a
|
---|
| 1505 | spurious difference in an uninitialized portion of the structure */
|
---|
| 1506 | memset(&new_mode, 0, sizeof(new_mode));
|
---|
| 1507 | if (tcgetattr(STDIN_FILENO, &new_mode))
|
---|
| 1508 | perror_on_device_and_die("%s");
|
---|
| 1509 |
|
---|
| 1510 | if (memcmp(&mode, &new_mode, sizeof(mode)) != 0) {
|
---|
| 1511 | #if CIBAUD
|
---|
| 1512 | /* SunOS 4.1.3 (at least) has the problem that after this sequence,
|
---|
| 1513 | tcgetattr (&m1); tcsetattr (&m1); tcgetattr (&m2);
|
---|
| 1514 | sometimes (m1 != m2). The only difference is in the four bits
|
---|
| 1515 | of the c_cflag field corresponding to the baud rate. To save
|
---|
| 1516 | Sun users a little confusion, don't report an error if this
|
---|
| 1517 | happens. But suppress the error only if we haven't tried to
|
---|
| 1518 | set the baud rate explicitly -- otherwise we'd never give an
|
---|
| 1519 | error for a true failure to set the baud rate */
|
---|
| 1520 |
|
---|
| 1521 | new_mode.c_cflag &= (~CIBAUD);
|
---|
| 1522 | if ((stty_state & STTY_speed_was_set)
|
---|
| 1523 | || memcmp(&mode, &new_mode, sizeof(mode)) != 0)
|
---|
| 1524 | #endif
|
---|
| 1525 | perror_on_device_and_die("%s: cannot perform all requested operations");
|
---|
| 1526 | }
|
---|
| 1527 | }
|
---|
| 1528 |
|
---|
| 1529 | return EXIT_SUCCESS;
|
---|
| 1530 | }
|
---|