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Annotation of src/usr.bin/tmux/tty-term.c, Revision 1.88

1.88    ! nicm        1: /* $OpenBSD: tty-term.c,v 1.87 2021/02/17 07:18:36 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.44      nicm        4:  * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20:
1.3       nicm       21: #include <curses.h>
1.5       nicm       22: #include <fnmatch.h>
                     23: #include <stdlib.h>
1.1       nicm       24: #include <string.h>
                     25: #include <term.h>
1.5       nicm       26: #include <vis.h>
1.1       nicm       27:
                     28: #include "tmux.h"
                     29:
1.46      nicm       30: static char    *tty_term_strip(const char *);
1.1       nicm       31:
1.20      nicm       32: struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
1.1       nicm       33:
1.38      nicm       34: enum tty_code_type {
                     35:        TTYCODE_NONE = 0,
                     36:        TTYCODE_STRING,
                     37:        TTYCODE_NUMBER,
                     38:        TTYCODE_FLAG,
1.1       nicm       39: };
                     40:
1.38      nicm       41: struct tty_code {
                     42:        enum tty_code_type      type;
                     43:        union {
                     44:                char           *string;
                     45:                int             number;
                     46:                int             flag;
                     47:        } value;
                     48: };
                     49:
                     50: struct tty_term_code_entry {
                     51:        enum tty_code_type      type;
                     52:        const char             *name;
                     53: };
                     54:
1.46      nicm       55: static const struct tty_term_code_entry tty_term_codes[] = {
1.38      nicm       56:        [TTYC_ACSC] = { TTYCODE_STRING, "acsc" },
1.82      nicm       57:        [TTYC_AM] = { TTYCODE_FLAG, "am" },
1.38      nicm       58:        [TTYC_AX] = { TTYCODE_FLAG, "AX" },
                     59:        [TTYC_BCE] = { TTYCODE_FLAG, "bce" },
                     60:        [TTYC_BEL] = { TTYCODE_STRING, "bel" },
1.86      nicm       61:        [TTYC_BIDI] = { TTYCODE_STRING, "Bidi" },
1.38      nicm       62:        [TTYC_BLINK] = { TTYCODE_STRING, "blink" },
                     63:        [TTYC_BOLD] = { TTYCODE_STRING, "bold" },
                     64:        [TTYC_CIVIS] = { TTYCODE_STRING, "civis" },
                     65:        [TTYC_CLEAR] = { TTYCODE_STRING, "clear" },
1.77      nicm       66:        [TTYC_CLMG] = { TTYCODE_STRING, "Clmg" },
                     67:        [TTYC_CMG] = { TTYCODE_STRING, "Cmg" },
1.38      nicm       68:        [TTYC_CNORM] = { TTYCODE_STRING, "cnorm" },
                     69:        [TTYC_COLORS] = { TTYCODE_NUMBER, "colors" },
                     70:        [TTYC_CR] = { TTYCODE_STRING, "Cr" },
1.57      nicm       71:        [TTYC_CSR] = { TTYCODE_STRING, "csr" },
1.38      nicm       72:        [TTYC_CS] = { TTYCODE_STRING, "Cs" },
1.57      nicm       73:        [TTYC_CUB1] = { TTYCODE_STRING, "cub1" },
1.38      nicm       74:        [TTYC_CUB] = { TTYCODE_STRING, "cub" },
1.57      nicm       75:        [TTYC_CUD1] = { TTYCODE_STRING, "cud1" },
1.38      nicm       76:        [TTYC_CUD] = { TTYCODE_STRING, "cud" },
1.57      nicm       77:        [TTYC_CUF1] = { TTYCODE_STRING, "cuf1" },
1.38      nicm       78:        [TTYC_CUF] = { TTYCODE_STRING, "cuf" },
                     79:        [TTYC_CUP] = { TTYCODE_STRING, "cup" },
1.57      nicm       80:        [TTYC_CUU1] = { TTYCODE_STRING, "cuu1" },
1.38      nicm       81:        [TTYC_CUU] = { TTYCODE_STRING, "cuu" },
                     82:        [TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" },
1.57      nicm       83:        [TTYC_DCH1] = { TTYCODE_STRING, "dch1" },
1.38      nicm       84:        [TTYC_DCH] = { TTYCODE_STRING, "dch" },
                     85:        [TTYC_DIM] = { TTYCODE_STRING, "dim" },
1.57      nicm       86:        [TTYC_DL1] = { TTYCODE_STRING, "dl1" },
1.38      nicm       87:        [TTYC_DL] = { TTYCODE_STRING, "dl" },
1.81      nicm       88:        [TTYC_DSEKS] = { TTYCODE_STRING, "Dseks" },
1.79      nicm       89:        [TTYC_DSFCS] = { TTYCODE_STRING, "Dsfcs" },
1.78      nicm       90:        [TTYC_DSBP] = { TTYCODE_STRING, "Dsbp" },
1.77      nicm       91:        [TTYC_DSMG] = { TTYCODE_STRING, "Dsmg" },
1.38      nicm       92:        [TTYC_E3] = { TTYCODE_STRING, "E3" },
                     93:        [TTYC_ECH] = { TTYCODE_STRING, "ech" },
1.50      nicm       94:        [TTYC_ED] = { TTYCODE_STRING, "ed" },
1.57      nicm       95:        [TTYC_EL1] = { TTYCODE_STRING, "el1" },
1.38      nicm       96:        [TTYC_EL] = { TTYCODE_STRING, "el" },
                     97:        [TTYC_ENACS] = { TTYCODE_STRING, "enacs" },
1.78      nicm       98:        [TTYC_ENBP] = { TTYCODE_STRING, "Enbp" },
1.81      nicm       99:        [TTYC_ENEKS] = { TTYCODE_STRING, "Eneks" },
1.79      nicm      100:        [TTYC_ENFCS] = { TTYCODE_STRING, "Enfcs" },
1.77      nicm      101:        [TTYC_ENMG] = { TTYCODE_STRING, "Enmg" },
1.38      nicm      102:        [TTYC_FSL] = { TTYCODE_STRING, "fsl" },
                    103:        [TTYC_HOME] = { TTYCODE_STRING, "home" },
                    104:        [TTYC_HPA] = { TTYCODE_STRING, "hpa" },
1.57      nicm      105:        [TTYC_ICH1] = { TTYCODE_STRING, "ich1" },
1.38      nicm      106:        [TTYC_ICH] = { TTYCODE_STRING, "ich" },
1.57      nicm      107:        [TTYC_IL1] = { TTYCODE_STRING, "il1" },
1.38      nicm      108:        [TTYC_IL] = { TTYCODE_STRING, "il" },
1.51      nicm      109:        [TTYC_INDN] = { TTYCODE_STRING, "indn" },
1.38      nicm      110:        [TTYC_INVIS] = { TTYCODE_STRING, "invis" },
                    111:        [TTYC_KCBT] = { TTYCODE_STRING, "kcbt" },
                    112:        [TTYC_KCUB1] = { TTYCODE_STRING, "kcub1" },
                    113:        [TTYC_KCUD1] = { TTYCODE_STRING, "kcud1" },
                    114:        [TTYC_KCUF1] = { TTYCODE_STRING, "kcuf1" },
                    115:        [TTYC_KCUU1] = { TTYCODE_STRING, "kcuu1" },
                    116:        [TTYC_KDC2] = { TTYCODE_STRING, "kDC" },
                    117:        [TTYC_KDC3] = { TTYCODE_STRING, "kDC3" },
                    118:        [TTYC_KDC4] = { TTYCODE_STRING, "kDC4" },
                    119:        [TTYC_KDC5] = { TTYCODE_STRING, "kDC5" },
                    120:        [TTYC_KDC6] = { TTYCODE_STRING, "kDC6" },
                    121:        [TTYC_KDC7] = { TTYCODE_STRING, "kDC7" },
                    122:        [TTYC_KDCH1] = { TTYCODE_STRING, "kdch1" },
1.57      nicm      123:        [TTYC_KDN2] = { TTYCODE_STRING, "kDN" }, /* not kDN2 */
1.38      nicm      124:        [TTYC_KDN3] = { TTYCODE_STRING, "kDN3" },
                    125:        [TTYC_KDN4] = { TTYCODE_STRING, "kDN4" },
                    126:        [TTYC_KDN5] = { TTYCODE_STRING, "kDN5" },
                    127:        [TTYC_KDN6] = { TTYCODE_STRING, "kDN6" },
                    128:        [TTYC_KDN7] = { TTYCODE_STRING, "kDN7" },
                    129:        [TTYC_KEND2] = { TTYCODE_STRING, "kEND" },
                    130:        [TTYC_KEND3] = { TTYCODE_STRING, "kEND3" },
                    131:        [TTYC_KEND4] = { TTYCODE_STRING, "kEND4" },
                    132:        [TTYC_KEND5] = { TTYCODE_STRING, "kEND5" },
                    133:        [TTYC_KEND6] = { TTYCODE_STRING, "kEND6" },
                    134:        [TTYC_KEND7] = { TTYCODE_STRING, "kEND7" },
1.57      nicm      135:        [TTYC_KEND] = { TTYCODE_STRING, "kend" },
1.38      nicm      136:        [TTYC_KF10] = { TTYCODE_STRING, "kf10" },
                    137:        [TTYC_KF11] = { TTYCODE_STRING, "kf11" },
                    138:        [TTYC_KF12] = { TTYCODE_STRING, "kf12" },
                    139:        [TTYC_KF13] = { TTYCODE_STRING, "kf13" },
                    140:        [TTYC_KF14] = { TTYCODE_STRING, "kf14" },
                    141:        [TTYC_KF15] = { TTYCODE_STRING, "kf15" },
                    142:        [TTYC_KF16] = { TTYCODE_STRING, "kf16" },
                    143:        [TTYC_KF17] = { TTYCODE_STRING, "kf17" },
                    144:        [TTYC_KF18] = { TTYCODE_STRING, "kf18" },
                    145:        [TTYC_KF19] = { TTYCODE_STRING, "kf19" },
1.57      nicm      146:        [TTYC_KF1] = { TTYCODE_STRING, "kf1" },
1.38      nicm      147:        [TTYC_KF20] = { TTYCODE_STRING, "kf20" },
                    148:        [TTYC_KF21] = { TTYCODE_STRING, "kf21" },
                    149:        [TTYC_KF22] = { TTYCODE_STRING, "kf22" },
                    150:        [TTYC_KF23] = { TTYCODE_STRING, "kf23" },
                    151:        [TTYC_KF24] = { TTYCODE_STRING, "kf24" },
                    152:        [TTYC_KF25] = { TTYCODE_STRING, "kf25" },
                    153:        [TTYC_KF26] = { TTYCODE_STRING, "kf26" },
                    154:        [TTYC_KF27] = { TTYCODE_STRING, "kf27" },
                    155:        [TTYC_KF28] = { TTYCODE_STRING, "kf28" },
                    156:        [TTYC_KF29] = { TTYCODE_STRING, "kf29" },
1.57      nicm      157:        [TTYC_KF2] = { TTYCODE_STRING, "kf2" },
1.38      nicm      158:        [TTYC_KF30] = { TTYCODE_STRING, "kf30" },
                    159:        [TTYC_KF31] = { TTYCODE_STRING, "kf31" },
                    160:        [TTYC_KF32] = { TTYCODE_STRING, "kf32" },
                    161:        [TTYC_KF33] = { TTYCODE_STRING, "kf33" },
                    162:        [TTYC_KF34] = { TTYCODE_STRING, "kf34" },
                    163:        [TTYC_KF35] = { TTYCODE_STRING, "kf35" },
                    164:        [TTYC_KF36] = { TTYCODE_STRING, "kf36" },
                    165:        [TTYC_KF37] = { TTYCODE_STRING, "kf37" },
                    166:        [TTYC_KF38] = { TTYCODE_STRING, "kf38" },
                    167:        [TTYC_KF39] = { TTYCODE_STRING, "kf39" },
1.57      nicm      168:        [TTYC_KF3] = { TTYCODE_STRING, "kf3" },
1.38      nicm      169:        [TTYC_KF40] = { TTYCODE_STRING, "kf40" },
                    170:        [TTYC_KF41] = { TTYCODE_STRING, "kf41" },
                    171:        [TTYC_KF42] = { TTYCODE_STRING, "kf42" },
                    172:        [TTYC_KF43] = { TTYCODE_STRING, "kf43" },
                    173:        [TTYC_KF44] = { TTYCODE_STRING, "kf44" },
                    174:        [TTYC_KF45] = { TTYCODE_STRING, "kf45" },
                    175:        [TTYC_KF46] = { TTYCODE_STRING, "kf46" },
                    176:        [TTYC_KF47] = { TTYCODE_STRING, "kf47" },
                    177:        [TTYC_KF48] = { TTYCODE_STRING, "kf48" },
                    178:        [TTYC_KF49] = { TTYCODE_STRING, "kf49" },
1.57      nicm      179:        [TTYC_KF4] = { TTYCODE_STRING, "kf4" },
1.38      nicm      180:        [TTYC_KF50] = { TTYCODE_STRING, "kf50" },
                    181:        [TTYC_KF51] = { TTYCODE_STRING, "kf51" },
                    182:        [TTYC_KF52] = { TTYCODE_STRING, "kf52" },
                    183:        [TTYC_KF53] = { TTYCODE_STRING, "kf53" },
                    184:        [TTYC_KF54] = { TTYCODE_STRING, "kf54" },
                    185:        [TTYC_KF55] = { TTYCODE_STRING, "kf55" },
                    186:        [TTYC_KF56] = { TTYCODE_STRING, "kf56" },
                    187:        [TTYC_KF57] = { TTYCODE_STRING, "kf57" },
                    188:        [TTYC_KF58] = { TTYCODE_STRING, "kf58" },
                    189:        [TTYC_KF59] = { TTYCODE_STRING, "kf59" },
1.57      nicm      190:        [TTYC_KF5] = { TTYCODE_STRING, "kf5" },
1.38      nicm      191:        [TTYC_KF60] = { TTYCODE_STRING, "kf60" },
                    192:        [TTYC_KF61] = { TTYCODE_STRING, "kf61" },
                    193:        [TTYC_KF62] = { TTYCODE_STRING, "kf62" },
                    194:        [TTYC_KF63] = { TTYCODE_STRING, "kf63" },
1.57      nicm      195:        [TTYC_KF6] = { TTYCODE_STRING, "kf6" },
1.38      nicm      196:        [TTYC_KF7] = { TTYCODE_STRING, "kf7" },
                    197:        [TTYC_KF8] = { TTYCODE_STRING, "kf8" },
                    198:        [TTYC_KF9] = { TTYCODE_STRING, "kf9" },
                    199:        [TTYC_KHOM2] = { TTYCODE_STRING, "kHOM" },
                    200:        [TTYC_KHOM3] = { TTYCODE_STRING, "kHOM3" },
                    201:        [TTYC_KHOM4] = { TTYCODE_STRING, "kHOM4" },
                    202:        [TTYC_KHOM5] = { TTYCODE_STRING, "kHOM5" },
                    203:        [TTYC_KHOM6] = { TTYCODE_STRING, "kHOM6" },
                    204:        [TTYC_KHOM7] = { TTYCODE_STRING, "kHOM7" },
                    205:        [TTYC_KHOME] = { TTYCODE_STRING, "khome" },
                    206:        [TTYC_KIC2] = { TTYCODE_STRING, "kIC" },
                    207:        [TTYC_KIC3] = { TTYCODE_STRING, "kIC3" },
                    208:        [TTYC_KIC4] = { TTYCODE_STRING, "kIC4" },
                    209:        [TTYC_KIC5] = { TTYCODE_STRING, "kIC5" },
                    210:        [TTYC_KIC6] = { TTYCODE_STRING, "kIC6" },
                    211:        [TTYC_KIC7] = { TTYCODE_STRING, "kIC7" },
                    212:        [TTYC_KICH1] = { TTYCODE_STRING, "kich1" },
1.57      nicm      213:        [TTYC_KIND] = { TTYCODE_STRING, "kind" },
1.38      nicm      214:        [TTYC_KLFT2] = { TTYCODE_STRING, "kLFT" },
                    215:        [TTYC_KLFT3] = { TTYCODE_STRING, "kLFT3" },
                    216:        [TTYC_KLFT4] = { TTYCODE_STRING, "kLFT4" },
                    217:        [TTYC_KLFT5] = { TTYCODE_STRING, "kLFT5" },
                    218:        [TTYC_KLFT6] = { TTYCODE_STRING, "kLFT6" },
                    219:        [TTYC_KLFT7] = { TTYCODE_STRING, "kLFT7" },
                    220:        [TTYC_KMOUS] = { TTYCODE_STRING, "kmous" },
                    221:        [TTYC_KNP] = { TTYCODE_STRING, "knp" },
                    222:        [TTYC_KNXT2] = { TTYCODE_STRING, "kNXT" },
                    223:        [TTYC_KNXT3] = { TTYCODE_STRING, "kNXT3" },
                    224:        [TTYC_KNXT4] = { TTYCODE_STRING, "kNXT4" },
                    225:        [TTYC_KNXT5] = { TTYCODE_STRING, "kNXT5" },
                    226:        [TTYC_KNXT6] = { TTYCODE_STRING, "kNXT6" },
                    227:        [TTYC_KNXT7] = { TTYCODE_STRING, "kNXT7" },
                    228:        [TTYC_KPP] = { TTYCODE_STRING, "kpp" },
                    229:        [TTYC_KPRV2] = { TTYCODE_STRING, "kPRV" },
                    230:        [TTYC_KPRV3] = { TTYCODE_STRING, "kPRV3" },
                    231:        [TTYC_KPRV4] = { TTYCODE_STRING, "kPRV4" },
                    232:        [TTYC_KPRV5] = { TTYCODE_STRING, "kPRV5" },
                    233:        [TTYC_KPRV6] = { TTYCODE_STRING, "kPRV6" },
                    234:        [TTYC_KPRV7] = { TTYCODE_STRING, "kPRV7" },
                    235:        [TTYC_KRIT2] = { TTYCODE_STRING, "kRIT" },
                    236:        [TTYC_KRIT3] = { TTYCODE_STRING, "kRIT3" },
                    237:        [TTYC_KRIT4] = { TTYCODE_STRING, "kRIT4" },
                    238:        [TTYC_KRIT5] = { TTYCODE_STRING, "kRIT5" },
                    239:        [TTYC_KRIT6] = { TTYCODE_STRING, "kRIT6" },
                    240:        [TTYC_KRIT7] = { TTYCODE_STRING, "kRIT7" },
1.57      nicm      241:        [TTYC_KRI] = { TTYCODE_STRING, "kri" },
                    242:        [TTYC_KUP2] = { TTYCODE_STRING, "kUP" }, /* not kUP2 */
1.38      nicm      243:        [TTYC_KUP3] = { TTYCODE_STRING, "kUP3" },
                    244:        [TTYC_KUP4] = { TTYCODE_STRING, "kUP4" },
                    245:        [TTYC_KUP5] = { TTYCODE_STRING, "kUP5" },
                    246:        [TTYC_KUP6] = { TTYCODE_STRING, "kUP6" },
                    247:        [TTYC_KUP7] = { TTYCODE_STRING, "kUP7" },
                    248:        [TTYC_MS] = { TTYCODE_STRING, "Ms" },
1.84      nicm      249:        [TTYC_OL] = { TTYCODE_STRING, "ol" },
1.38      nicm      250:        [TTYC_OP] = { TTYCODE_STRING, "op" },
                    251:        [TTYC_REV] = { TTYCODE_STRING, "rev" },
1.58      nicm      252:        [TTYC_RGB] = { TTYCODE_FLAG, "RGB" },
1.77      nicm      253:        [TTYC_RIN] = { TTYCODE_STRING, "rin" },
1.38      nicm      254:        [TTYC_RI] = { TTYCODE_STRING, "ri" },
                    255:        [TTYC_RMACS] = { TTYCODE_STRING, "rmacs" },
                    256:        [TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" },
                    257:        [TTYC_RMKX] = { TTYCODE_STRING, "rmkx" },
                    258:        [TTYC_SETAB] = { TTYCODE_STRING, "setab" },
                    259:        [TTYC_SETAF] = { TTYCODE_STRING, "setaf" },
1.84      nicm      260:        [TTYC_SETAL] = { TTYCODE_STRING, "setal" },
1.55      nicm      261:        [TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" },
                    262:        [TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" },
1.66      nicm      263:        [TTYC_SETULC] = { TTYCODE_STRING, "Setulc" },
1.57      nicm      264:        [TTYC_SE] = { TTYCODE_STRING, "Se" },
1.38      nicm      265:        [TTYC_SGR0] = { TTYCODE_STRING, "sgr0" },
                    266:        [TTYC_SITM] = { TTYCODE_STRING, "sitm" },
                    267:        [TTYC_SMACS] = { TTYCODE_STRING, "smacs" },
                    268:        [TTYC_SMCUP] = { TTYCODE_STRING, "smcup" },
                    269:        [TTYC_SMKX] = { TTYCODE_STRING, "smkx" },
1.64      nicm      270:        [TTYC_SMOL] = { TTYCODE_STRING, "Smol" },
1.38      nicm      271:        [TTYC_SMSO] = { TTYCODE_STRING, "smso" },
1.60      nicm      272:        [TTYC_SMULX] = { TTYCODE_STRING, "Smulx" },
1.38      nicm      273:        [TTYC_SMUL] = { TTYCODE_STRING, "smul" },
1.53      nicm      274:        [TTYC_SMXX] =  { TTYCODE_STRING, "smxx" },
1.38      nicm      275:        [TTYC_SS] = { TTYCODE_STRING, "Ss" },
1.74      nicm      276:        [TTYC_SYNC] = { TTYCODE_STRING, "Sync" },
1.45      nicm      277:        [TTYC_TC] = { TTYCODE_FLAG, "Tc" },
1.38      nicm      278:        [TTYC_TSL] = { TTYCODE_STRING, "tsl" },
1.57      nicm      279:        [TTYC_U8] = { TTYCODE_NUMBER, "U8" },
1.38      nicm      280:        [TTYC_VPA] = { TTYCODE_STRING, "vpa" },
1.77      nicm      281:        [TTYC_XT] = { TTYCODE_FLAG, "XT" }
1.38      nicm      282: };
                    283:
                    284: u_int
                    285: tty_term_ncodes(void)
                    286: {
                    287:        return (nitems(tty_term_codes));
                    288: }
                    289:
1.46      nicm      290: static char *
1.1       nicm      291: tty_term_strip(const char *s)
                    292: {
                    293:        const char     *ptr;
1.68      nicm      294:        static char     buf[8192];
1.1       nicm      295:        size_t          len;
                    296:
                    297:        /* Ignore strings with no padding. */
                    298:        if (strchr(s, '$') == NULL)
                    299:                return (xstrdup(s));
                    300:
                    301:        len = 0;
                    302:        for (ptr = s; *ptr != '\0'; ptr++) {
                    303:                if (*ptr == '$' && *(ptr + 1) == '<') {
                    304:                        while (*ptr != '\0' && *ptr != '>')
                    305:                                ptr++;
                    306:                        if (*ptr == '>')
                    307:                                ptr++;
1.83      nicm      308:                        if (*ptr == '\0')
                    309:                                break;
1.1       nicm      310:                }
                    311:
                    312:                buf[len++] = *ptr;
                    313:                if (len == (sizeof buf) - 1)
                    314:                        break;
                    315:        }
                    316:        buf[len] = '\0';
                    317:
                    318:        return (xstrdup(buf));
                    319: }
                    320:
1.60      nicm      321: static char *
                    322: tty_term_override_next(const char *s, size_t *offset)
                    323: {
1.68      nicm      324:        static char     value[8192];
1.60      nicm      325:        size_t          n = 0, at = *offset;
                    326:
                    327:        if (s[at] == '\0')
                    328:                return (NULL);
                    329:
                    330:        while (s[at] != '\0') {
                    331:                if (s[at] == ':') {
                    332:                        if (s[at + 1] == ':') {
                    333:                                value[n++] = ':';
                    334:                                at += 2;
                    335:                        } else
                    336:                                break;
                    337:                } else {
                    338:                        value[n++] = s[at];
                    339:                        at++;
                    340:                }
                    341:                if (n == (sizeof value) - 1)
                    342:                        return (NULL);
                    343:        }
                    344:        if (s[at] != '\0')
                    345:                *offset = at + 1;
                    346:        else
                    347:                *offset = at;
                    348:        value[n] = '\0';
                    349:        return (value);
                    350: }
                    351:
1.73      nicm      352: void
                    353: tty_term_apply(struct tty_term *term, const char *capabilities, int quiet)
1.1       nicm      354: {
1.19      nicm      355:        const struct tty_term_code_entry        *ent;
                    356:        struct tty_code                         *code;
1.60      nicm      357:        size_t                                   offset = 0;
                    358:        char                                    *cp, *value, *s;
1.73      nicm      359:        const char                              *errstr, *name = term->name;
1.19      nicm      360:        u_int                                    i;
1.49      nicm      361:        int                                      n, remove;
1.5       nicm      362:
1.73      nicm      363:        while ((s = tty_term_override_next(capabilities, &offset)) != NULL) {
1.49      nicm      364:                if (*s == '\0')
1.5       nicm      365:                        continue;
1.49      nicm      366:                value = NULL;
                    367:
                    368:                remove = 0;
                    369:                if ((cp = strchr(s, '=')) != NULL) {
                    370:                        *cp++ = '\0';
                    371:                        value = xstrdup(cp);
                    372:                        if (strunvis(value, cp) == -1) {
                    373:                                free(value);
                    374:                                value = xstrdup(cp);
                    375:                        }
                    376:                } else if (s[strlen(s) - 1] == '@') {
                    377:                        s[strlen(s) - 1] = '\0';
                    378:                        remove = 1;
                    379:                } else
                    380:                        value = xstrdup("");
                    381:
1.73      nicm      382:                if (!quiet) {
                    383:                        if (remove)
                    384:                                log_debug("%s override: %s@", name, s);
                    385:                        else if (*value == '\0')
                    386:                                log_debug("%s override: %s", name, s);
                    387:                        else
                    388:                                log_debug("%s override: %s=%s", name, s, value);
                    389:                }
1.49      nicm      390:
                    391:                for (i = 0; i < tty_term_ncodes(); i++) {
                    392:                        ent = &tty_term_codes[i];
                    393:                        if (strcmp(s, ent->name) != 0)
1.5       nicm      394:                                continue;
1.49      nicm      395:                        code = &term->codes[i];
1.5       nicm      396:
1.49      nicm      397:                        if (remove) {
                    398:                                code->type = TTYCODE_NONE;
                    399:                                continue;
                    400:                        }
                    401:                        switch (ent->type) {
                    402:                        case TTYCODE_NONE:
                    403:                                break;
                    404:                        case TTYCODE_STRING:
                    405:                                if (code->type == TTYCODE_STRING)
                    406:                                        free(code->value.string);
                    407:                                code->value.string = xstrdup(value);
                    408:                                code->type = ent->type;
                    409:                                break;
                    410:                        case TTYCODE_NUMBER:
                    411:                                n = strtonum(value, 0, INT_MAX, &errstr);
                    412:                                if (errstr != NULL)
1.5       nicm      413:                                        break;
1.49      nicm      414:                                code->value.number = n;
                    415:                                code->type = ent->type;
                    416:                                break;
                    417:                        case TTYCODE_FLAG:
                    418:                                code->value.flag = 1;
                    419:                                code->type = ent->type;
                    420:                                break;
1.5       nicm      421:                        }
1.49      nicm      422:                }
1.5       nicm      423:
1.49      nicm      424:                free(value);
1.1       nicm      425:        }
                    426: }
                    427:
1.75      nicm      428: void
                    429: tty_term_apply_overrides(struct tty_term *term)
                    430: {
                    431:        struct options_entry            *o;
                    432:        struct options_array_item       *a;
                    433:        union options_value             *ov;
                    434:        const char                      *s;
                    435:        size_t                           offset;
                    436:        char                            *first;
                    437:
                    438:        o = options_get_only(global_options, "terminal-overrides");
                    439:        a = options_array_first(o);
                    440:        while (a != NULL) {
                    441:                ov = options_array_item_value(a);
                    442:                s = ov->string;
                    443:
                    444:                offset = 0;
                    445:                first = tty_term_override_next(s, &offset);
                    446:                if (first != NULL && fnmatch(first, term->name, 0) == 0)
                    447:                        tty_term_apply(term, s + offset, 0);
                    448:                a = options_array_next(a);
                    449:        }
                    450: }
                    451:
1.1       nicm      452: struct tty_term *
1.87      nicm      453: tty_term_create(struct tty *tty, char *name, char **caps, u_int ncaps,
                    454:     int *feat, char **cause)
1.1       nicm      455: {
1.19      nicm      456:        struct tty_term                         *term;
                    457:        const struct tty_term_code_entry        *ent;
                    458:        struct tty_code                         *code;
1.49      nicm      459:        struct options_entry                    *o;
1.61      nicm      460:        struct options_array_item               *a;
1.62      nicm      461:        union options_value                     *ov;
1.87      nicm      462:        u_int                                    i, j;
                    463:        const char                              *s, *acs, *value;
                    464:        size_t                                   offset, namelen;
1.73      nicm      465:        char                                    *first;
1.1       nicm      466:
1.73      nicm      467:        log_debug("adding term %s", name);
1.1       nicm      468:
1.73      nicm      469:        term = xcalloc(1, sizeof *term);
                    470:        term->tty = tty;
1.1       nicm      471:        term->name = xstrdup(name);
1.47      nicm      472:        term->codes = xcalloc(tty_term_ncodes(), sizeof *term->codes);
1.20      nicm      473:        LIST_INSERT_HEAD(&tty_terms, term, entry);
1.1       nicm      474:
1.87      nicm      475:        /* Fill in codes. */
                    476:        for (i = 0; i < ncaps; i++) {
                    477:                namelen = strcspn(caps[i], "=");
                    478:                if (namelen == 0)
                    479:                        continue;
                    480:                value = caps[i] + namelen + 1;
1.1       nicm      481:
1.87      nicm      482:                for (j = 0; j < tty_term_ncodes(); j++) {
                    483:                        ent = &tty_term_codes[j];
                    484:                        if (strncmp(ent->name, caps[i], namelen) != 0)
                    485:                                continue;
                    486:                        if (ent->name[namelen] != '\0')
                    487:                                continue;
1.1       nicm      488:
1.87      nicm      489:                        code = &term->codes[j];
                    490:                        code->type = TTYCODE_NONE;
                    491:                        switch (ent->type) {
                    492:                        case TTYCODE_NONE:
                    493:                                break;
                    494:                        case TTYCODE_STRING:
                    495:                                code->type = TTYCODE_STRING;
                    496:                                code->value.string = tty_term_strip(value);
1.1       nicm      497:                                break;
1.87      nicm      498:                        case TTYCODE_NUMBER:
                    499:                                code->type = TTYCODE_NUMBER;
                    500:                                code->value.number = atoi(value);
1.1       nicm      501:                                break;
1.87      nicm      502:                        case TTYCODE_FLAG:
                    503:                                code->type = TTYCODE_FLAG;
                    504:                                code->value.flag = (*value == '1');
1.1       nicm      505:                                break;
1.87      nicm      506:                        }
1.1       nicm      507:                }
                    508:        }
1.33      nicm      509:
1.73      nicm      510:        /* Apply terminal features. */
                    511:        o = options_get_only(global_options, "terminal-features");
                    512:        a = options_array_first(o);
                    513:        while (a != NULL) {
                    514:                ov = options_array_item_value(a);
                    515:                s = ov->string;
                    516:
                    517:                offset = 0;
                    518:                first = tty_term_override_next(s, &offset);
                    519:                if (first != NULL && fnmatch(first, term->name, 0) == 0)
                    520:                        tty_add_features(feat, s + offset, ":");
                    521:                a = options_array_next(a);
                    522:        }
1.1       nicm      523:
1.76      nicm      524:        /* Apply overrides so any capabilities used for features are changed. */
                    525:        tty_term_apply_overrides(term);
                    526:
1.1       nicm      527:        /* These are always required. */
                    528:        if (!tty_term_has(term, TTYC_CLEAR)) {
                    529:                xasprintf(cause, "terminal does not support clear");
                    530:                goto error;
                    531:        }
                    532:        if (!tty_term_has(term, TTYC_CUP)) {
                    533:                xasprintf(cause, "terminal does not support cup");
                    534:                goto error;
                    535:        }
                    536:
1.80      nicm      537:        /*
                    538:         * If TERM has XT or clear starts with CSI then it is safe to assume
                    539:         * the terminal is derived from the VT100. This controls whether device
                    540:         * attributes requests are sent to get more information.
                    541:         *
                    542:         * This is a bit of a hack but there aren't that many alternatives.
                    543:         * Worst case tmux will just fall back to using whatever terminfo(5)
                    544:         * says without trying to correct anything that is missing.
                    545:         *
                    546:         * Also add few features that VT100-like terminals should either
                    547:         * support or safely ignore.
                    548:         */
                    549:        s = tty_term_string(term, TTYC_CLEAR);
                    550:        if (tty_term_flag(term, TTYC_XT) || strncmp(s, "\033[", 2) == 0) {
                    551:                term->flags |= TERM_VT100LIKE;
                    552:                tty_add_features(feat, "bpaste,focus,title", ",");
1.1       nicm      553:        }
                    554:
1.73      nicm      555:        /* Add RGB feature if terminal has RGB colours. */
                    556:        if ((tty_term_flag(term, TTYC_TC) || tty_term_has(term, TTYC_RGB)) &&
                    557:            (!tty_term_has(term, TTYC_SETRGBF) ||
                    558:            !tty_term_has(term, TTYC_SETRGBB)))
1.78      nicm      559:                tty_add_features(feat, "RGB", ",");
1.85      nicm      560:        if (tty_term_has(term, TTYC_SETRGBF) &&
                    561:            tty_term_has(term, TTYC_SETRGBB))
                    562:                term->flags |= TERM_RGBCOLOURS;
1.73      nicm      563:
1.76      nicm      564:        /* Apply the features and overrides again. */
1.73      nicm      565:        tty_apply_features(term, *feat);
1.75      nicm      566:        tty_term_apply_overrides(term);
1.71      nicm      567:
1.1       nicm      568:        /*
1.82      nicm      569:         * Terminals without am (auto right margin) wrap at at $COLUMNS - 1
1.1       nicm      570:         * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
                    571:         *
1.82      nicm      572:         * Terminals without xenl (eat newline glitch) ignore a newline beyond
                    573:         * the right edge of the terminal, but tmux doesn't care about this -
                    574:         * it always uses absolute only moves the cursor with a newline when
                    575:         * also sending a linefeed.
                    576:         *
                    577:         * This is irritating, most notably because it is painful to write to
                    578:         * the very bottom-right of the screen without scrolling.
1.1       nicm      579:         *
                    580:         * Flag the terminal here and apply some workarounds in other places to
                    581:         * do the best possible.
                    582:         */
1.82      nicm      583:        if (!tty_term_flag(term, TTYC_AM))
                    584:                term->flags |= TERM_NOAM;
1.18      nicm      585:
                    586:        /* Generate ACS table. If none is present, use nearest ASCII. */
                    587:        memset(term->acs, 0, sizeof term->acs);
                    588:        if (tty_term_has(term, TTYC_ACSC))
                    589:                acs = tty_term_string(term, TTYC_ACSC);
                    590:        else
                    591:                acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~.";
                    592:        for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2)
                    593:                term->acs[(u_char) acs[0]][0] = acs[1];
1.22      nicm      594:
1.71      nicm      595:        /* Log the capabilities. */
1.56      nicm      596:        for (i = 0; i < tty_term_ncodes(); i++)
                    597:                log_debug("%s%s", name, tty_term_describe(term, i));
1.55      nicm      598:
1.1       nicm      599:        return (term);
                    600:
                    601: error:
                    602:        tty_term_free(term);
                    603:        return (NULL);
                    604: }
                    605:
                    606: void
                    607: tty_term_free(struct tty_term *term)
                    608: {
                    609:        u_int   i;
                    610:
1.73      nicm      611:        log_debug("removing term %s", term->name);
1.1       nicm      612:
1.38      nicm      613:        for (i = 0; i < tty_term_ncodes(); i++) {
1.1       nicm      614:                if (term->codes[i].type == TTYCODE_STRING)
1.29      nicm      615:                        free(term->codes[i].value.string);
1.1       nicm      616:        }
1.38      nicm      617:        free(term->codes);
                    618:
1.73      nicm      619:        LIST_REMOVE(term, entry);
1.29      nicm      620:        free(term->name);
                    621:        free(term);
1.87      nicm      622: }
                    623:
                    624: int
                    625: tty_term_read_list(const char *name, int fd, char ***caps, u_int *ncaps,
                    626:     char **cause)
                    627: {
                    628:        const struct tty_term_code_entry        *ent;
                    629:        int                                      error, n;
                    630:        u_int                                    i;
                    631:        const char                              *s;
                    632:        char                                     tmp[11];
                    633:
                    634:        if (setupterm(name, fd, &error) != OK) {
                    635:                switch (error) {
                    636:                case 1:
                    637:                        xasprintf(cause, "can't use hardcopy terminal: %s",
                    638:                            name);
                    639:                        break;
                    640:                case 0:
                    641:                        xasprintf(cause, "missing or unsuitable terminal: %s",
                    642:                            name);
                    643:                        break;
                    644:                case -1:
                    645:                        xasprintf(cause, "can't find terminfo database");
                    646:                        break;
                    647:                default:
                    648:                        xasprintf(cause, "unknown error");
                    649:                        break;
                    650:                }
                    651:                return (-1);
                    652:        }
                    653:
                    654:        *ncaps = 0;
                    655:        *caps = NULL;
                    656:
                    657:        for (i = 0; i < tty_term_ncodes(); i++) {
                    658:                ent = &tty_term_codes[i];
                    659:                switch (ent->type) {
                    660:                case TTYCODE_NONE:
                    661:                        break;
                    662:                case TTYCODE_STRING:
                    663:                        s = tigetstr((char *)ent->name);
                    664:                        if (s == NULL || s == (char *)-1)
                    665:                                continue;
                    666:                        break;
                    667:                case TTYCODE_NUMBER:
                    668:                        n = tigetnum((char *)ent->name);
                    669:                        if (n == -1 || n == -2)
                    670:                                continue;
                    671:                        xsnprintf(tmp, sizeof tmp, "%d", n);
                    672:                        s = tmp;
                    673:                        break;
                    674:                case TTYCODE_FLAG:
                    675:                        n = tigetflag((char *) ent->name);
                    676:                        if (n == -1)
                    677:                                continue;
                    678:                        if (n)
                    679:                                s = "1";
                    680:                        else
                    681:                                s = "0";
                    682:                        break;
                    683:                }
                    684:                *caps = xreallocarray(*caps, (*ncaps) + 1, sizeof **caps);
                    685:                xasprintf(&(*caps)[*ncaps], "%s=%s", ent->name, s);
                    686:                (*ncaps)++;
                    687:        }
                    688:
                    689:        del_curterm(cur_term);
                    690:        return (0);
                    691: }
                    692:
                    693: void
                    694: tty_term_free_list(char **caps, u_int ncaps)
                    695: {
                    696:        u_int   i;
                    697:
                    698:        for (i = 0; i < ncaps; i++)
                    699:                free(caps[i]);
                    700:        free(caps);
1.1       nicm      701: }
                    702:
                    703: int
                    704: tty_term_has(struct tty_term *term, enum tty_code_code code)
                    705: {
                    706:        return (term->codes[code].type != TTYCODE_NONE);
                    707: }
                    708:
                    709: const char *
                    710: tty_term_string(struct tty_term *term, enum tty_code_code code)
                    711: {
                    712:        if (!tty_term_has(term, code))
                    713:                return ("");
                    714:        if (term->codes[code].type != TTYCODE_STRING)
1.42      nicm      715:                fatalx("not a string: %d", code);
1.1       nicm      716:        return (term->codes[code].value.string);
                    717: }
                    718:
                    719: const char *
                    720: tty_term_string1(struct tty_term *term, enum tty_code_code code, int a)
                    721: {
                    722:        return (tparm((char *) tty_term_string(term, code), a));
                    723: }
                    724:
                    725: const char *
                    726: tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
1.23      nicm      727: {
                    728:        return (tparm((char *) tty_term_string(term, code), a, b));
1.55      nicm      729: }
                    730:
                    731: const char *
1.69      nicm      732: tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b,
                    733:     int c)
1.55      nicm      734: {
                    735:        return (tparm((char *) tty_term_string(term, code), a, b, c));
1.24      nicm      736: }
                    737:
                    738: const char *
                    739: tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a)
                    740: {
                    741:        return (tparm((char *) tty_term_string(term, code), a));
1.23      nicm      742: }
                    743:
                    744: const char *
1.34      nicm      745: tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a,
                    746:     const void *b)
1.1       nicm      747: {
                    748:        return (tparm((char *) tty_term_string(term, code), a, b));
                    749: }
                    750:
                    751: int
                    752: tty_term_number(struct tty_term *term, enum tty_code_code code)
                    753: {
                    754:        if (!tty_term_has(term, code))
                    755:                return (0);
                    756:        if (term->codes[code].type != TTYCODE_NUMBER)
1.42      nicm      757:                fatalx("not a number: %d", code);
1.1       nicm      758:        return (term->codes[code].value.number);
                    759: }
                    760:
                    761: int
                    762: tty_term_flag(struct tty_term *term, enum tty_code_code code)
                    763: {
                    764:        if (!tty_term_has(term, code))
                    765:                return (0);
                    766:        if (term->codes[code].type != TTYCODE_FLAG)
1.42      nicm      767:                fatalx("not a flag: %d", code);
1.1       nicm      768:        return (term->codes[code].value.flag);
1.38      nicm      769: }
                    770:
                    771: const char *
                    772: tty_term_describe(struct tty_term *term, enum tty_code_code code)
                    773: {
                    774:        static char      s[256];
                    775:        char             out[128];
                    776:
                    777:        switch (term->codes[code].type) {
                    778:        case TTYCODE_NONE:
                    779:                xsnprintf(s, sizeof s, "%4u: %s: [missing]",
                    780:                    code, tty_term_codes[code].name);
                    781:                break;
                    782:        case TTYCODE_STRING:
                    783:                strnvis(out, term->codes[code].value.string, sizeof out,
1.65      nicm      784:                    VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
1.38      nicm      785:                xsnprintf(s, sizeof s, "%4u: %s: (string) %s",
                    786:                    code, tty_term_codes[code].name,
                    787:                    out);
                    788:                break;
                    789:        case TTYCODE_NUMBER:
                    790:                xsnprintf(s, sizeof s, "%4u: %s: (number) %d",
                    791:                    code, tty_term_codes[code].name,
                    792:                    term->codes[code].value.number);
                    793:                break;
                    794:        case TTYCODE_FLAG:
                    795:                xsnprintf(s, sizeof s, "%4u: %s: (flag) %s",
                    796:                    code, tty_term_codes[code].name,
                    797:                    term->codes[code].value.flag ? "true" : "false");
                    798:                break;
                    799:        }
                    800:        return (s);
1.1       nicm      801: }