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Annotation of src/usr.bin/tmux/tty-term.c, Revision 1.57

1.57    ! nicm        1: /* $OpenBSD: tty-term.c,v 1.56 2017/06/16 11:50:06 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 void     tty_term_override(struct tty_term *, const char *);
                     31: static char    *tty_term_strip(const char *);
1.1       nicm       32:
1.20      nicm       33: struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
1.1       nicm       34:
1.38      nicm       35: enum tty_code_type {
                     36:        TTYCODE_NONE = 0,
                     37:        TTYCODE_STRING,
                     38:        TTYCODE_NUMBER,
                     39:        TTYCODE_FLAG,
1.1       nicm       40: };
                     41:
1.38      nicm       42: struct tty_code {
                     43:        enum tty_code_type      type;
                     44:        union {
                     45:                char           *string;
                     46:                int             number;
                     47:                int             flag;
                     48:        } value;
                     49: };
                     50:
                     51: struct tty_term_code_entry {
                     52:        enum tty_code_type      type;
                     53:        const char             *name;
                     54: };
                     55:
1.46      nicm       56: static const struct tty_term_code_entry tty_term_codes[] = {
1.38      nicm       57:        [TTYC_ACSC] = { TTYCODE_STRING, "acsc" },
                     58:        [TTYC_AX] = { TTYCODE_FLAG, "AX" },
                     59:        [TTYC_BCE] = { TTYCODE_FLAG, "bce" },
                     60:        [TTYC_BEL] = { TTYCODE_STRING, "bel" },
                     61:        [TTYC_BLINK] = { TTYCODE_STRING, "blink" },
                     62:        [TTYC_BOLD] = { TTYCODE_STRING, "bold" },
                     63:        [TTYC_CIVIS] = { TTYCODE_STRING, "civis" },
                     64:        [TTYC_CLEAR] = { TTYCODE_STRING, "clear" },
                     65:        [TTYC_CNORM] = { TTYCODE_STRING, "cnorm" },
                     66:        [TTYC_COLORS] = { TTYCODE_NUMBER, "colors" },
                     67:        [TTYC_CR] = { TTYCODE_STRING, "Cr" },
1.57    ! nicm       68:        [TTYC_CSR] = { TTYCODE_STRING, "csr" },
1.38      nicm       69:        [TTYC_CS] = { TTYCODE_STRING, "Cs" },
1.57    ! nicm       70:        [TTYC_CUB1] = { TTYCODE_STRING, "cub1" },
1.38      nicm       71:        [TTYC_CUB] = { TTYCODE_STRING, "cub" },
1.57    ! nicm       72:        [TTYC_CUD1] = { TTYCODE_STRING, "cud1" },
1.38      nicm       73:        [TTYC_CUD] = { TTYCODE_STRING, "cud" },
1.57    ! nicm       74:        [TTYC_CUF1] = { TTYCODE_STRING, "cuf1" },
1.38      nicm       75:        [TTYC_CUF] = { TTYCODE_STRING, "cuf" },
                     76:        [TTYC_CUP] = { TTYCODE_STRING, "cup" },
1.57    ! nicm       77:        [TTYC_CUU1] = { TTYCODE_STRING, "cuu1" },
1.38      nicm       78:        [TTYC_CUU] = { TTYCODE_STRING, "cuu" },
                     79:        [TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" },
1.57    ! nicm       80:        [TTYC_DCH1] = { TTYCODE_STRING, "dch1" },
1.38      nicm       81:        [TTYC_DCH] = { TTYCODE_STRING, "dch" },
                     82:        [TTYC_DIM] = { TTYCODE_STRING, "dim" },
1.57    ! nicm       83:        [TTYC_DL1] = { TTYCODE_STRING, "dl1" },
1.38      nicm       84:        [TTYC_DL] = { TTYCODE_STRING, "dl" },
                     85:        [TTYC_E3] = { TTYCODE_STRING, "E3" },
                     86:        [TTYC_ECH] = { TTYCODE_STRING, "ech" },
1.50      nicm       87:        [TTYC_ED] = { TTYCODE_STRING, "ed" },
1.57    ! nicm       88:        [TTYC_EL1] = { TTYCODE_STRING, "el1" },
1.38      nicm       89:        [TTYC_EL] = { TTYCODE_STRING, "el" },
                     90:        [TTYC_ENACS] = { TTYCODE_STRING, "enacs" },
                     91:        [TTYC_FSL] = { TTYCODE_STRING, "fsl" },
                     92:        [TTYC_HOME] = { TTYCODE_STRING, "home" },
                     93:        [TTYC_HPA] = { TTYCODE_STRING, "hpa" },
1.57    ! nicm       94:        [TTYC_ICH1] = { TTYCODE_STRING, "ich1" },
1.38      nicm       95:        [TTYC_ICH] = { TTYCODE_STRING, "ich" },
1.57    ! nicm       96:        [TTYC_IL1] = { TTYCODE_STRING, "il1" },
1.38      nicm       97:        [TTYC_IL] = { TTYCODE_STRING, "il" },
1.51      nicm       98:        [TTYC_INDN] = { TTYCODE_STRING, "indn" },
1.38      nicm       99:        [TTYC_INVIS] = { TTYCODE_STRING, "invis" },
                    100:        [TTYC_KCBT] = { TTYCODE_STRING, "kcbt" },
                    101:        [TTYC_KCUB1] = { TTYCODE_STRING, "kcub1" },
                    102:        [TTYC_KCUD1] = { TTYCODE_STRING, "kcud1" },
                    103:        [TTYC_KCUF1] = { TTYCODE_STRING, "kcuf1" },
                    104:        [TTYC_KCUU1] = { TTYCODE_STRING, "kcuu1" },
                    105:        [TTYC_KDC2] = { TTYCODE_STRING, "kDC" },
                    106:        [TTYC_KDC3] = { TTYCODE_STRING, "kDC3" },
                    107:        [TTYC_KDC4] = { TTYCODE_STRING, "kDC4" },
                    108:        [TTYC_KDC5] = { TTYCODE_STRING, "kDC5" },
                    109:        [TTYC_KDC6] = { TTYCODE_STRING, "kDC6" },
                    110:        [TTYC_KDC7] = { TTYCODE_STRING, "kDC7" },
                    111:        [TTYC_KDCH1] = { TTYCODE_STRING, "kdch1" },
1.57    ! nicm      112:        [TTYC_KDN2] = { TTYCODE_STRING, "kDN" }, /* not kDN2 */
1.38      nicm      113:        [TTYC_KDN3] = { TTYCODE_STRING, "kDN3" },
                    114:        [TTYC_KDN4] = { TTYCODE_STRING, "kDN4" },
                    115:        [TTYC_KDN5] = { TTYCODE_STRING, "kDN5" },
                    116:        [TTYC_KDN6] = { TTYCODE_STRING, "kDN6" },
                    117:        [TTYC_KDN7] = { TTYCODE_STRING, "kDN7" },
                    118:        [TTYC_KEND2] = { TTYCODE_STRING, "kEND" },
                    119:        [TTYC_KEND3] = { TTYCODE_STRING, "kEND3" },
                    120:        [TTYC_KEND4] = { TTYCODE_STRING, "kEND4" },
                    121:        [TTYC_KEND5] = { TTYCODE_STRING, "kEND5" },
                    122:        [TTYC_KEND6] = { TTYCODE_STRING, "kEND6" },
                    123:        [TTYC_KEND7] = { TTYCODE_STRING, "kEND7" },
1.57    ! nicm      124:        [TTYC_KEND] = { TTYCODE_STRING, "kend" },
1.38      nicm      125:        [TTYC_KF10] = { TTYCODE_STRING, "kf10" },
                    126:        [TTYC_KF11] = { TTYCODE_STRING, "kf11" },
                    127:        [TTYC_KF12] = { TTYCODE_STRING, "kf12" },
                    128:        [TTYC_KF13] = { TTYCODE_STRING, "kf13" },
                    129:        [TTYC_KF14] = { TTYCODE_STRING, "kf14" },
                    130:        [TTYC_KF15] = { TTYCODE_STRING, "kf15" },
                    131:        [TTYC_KF16] = { TTYCODE_STRING, "kf16" },
                    132:        [TTYC_KF17] = { TTYCODE_STRING, "kf17" },
                    133:        [TTYC_KF18] = { TTYCODE_STRING, "kf18" },
                    134:        [TTYC_KF19] = { TTYCODE_STRING, "kf19" },
1.57    ! nicm      135:        [TTYC_KF1] = { TTYCODE_STRING, "kf1" },
1.38      nicm      136:        [TTYC_KF20] = { TTYCODE_STRING, "kf20" },
                    137:        [TTYC_KF21] = { TTYCODE_STRING, "kf21" },
                    138:        [TTYC_KF22] = { TTYCODE_STRING, "kf22" },
                    139:        [TTYC_KF23] = { TTYCODE_STRING, "kf23" },
                    140:        [TTYC_KF24] = { TTYCODE_STRING, "kf24" },
                    141:        [TTYC_KF25] = { TTYCODE_STRING, "kf25" },
                    142:        [TTYC_KF26] = { TTYCODE_STRING, "kf26" },
                    143:        [TTYC_KF27] = { TTYCODE_STRING, "kf27" },
                    144:        [TTYC_KF28] = { TTYCODE_STRING, "kf28" },
                    145:        [TTYC_KF29] = { TTYCODE_STRING, "kf29" },
1.57    ! nicm      146:        [TTYC_KF2] = { TTYCODE_STRING, "kf2" },
1.38      nicm      147:        [TTYC_KF30] = { TTYCODE_STRING, "kf30" },
                    148:        [TTYC_KF31] = { TTYCODE_STRING, "kf31" },
                    149:        [TTYC_KF32] = { TTYCODE_STRING, "kf32" },
                    150:        [TTYC_KF33] = { TTYCODE_STRING, "kf33" },
                    151:        [TTYC_KF34] = { TTYCODE_STRING, "kf34" },
                    152:        [TTYC_KF35] = { TTYCODE_STRING, "kf35" },
                    153:        [TTYC_KF36] = { TTYCODE_STRING, "kf36" },
                    154:        [TTYC_KF37] = { TTYCODE_STRING, "kf37" },
                    155:        [TTYC_KF38] = { TTYCODE_STRING, "kf38" },
                    156:        [TTYC_KF39] = { TTYCODE_STRING, "kf39" },
1.57    ! nicm      157:        [TTYC_KF3] = { TTYCODE_STRING, "kf3" },
1.38      nicm      158:        [TTYC_KF40] = { TTYCODE_STRING, "kf40" },
                    159:        [TTYC_KF41] = { TTYCODE_STRING, "kf41" },
                    160:        [TTYC_KF42] = { TTYCODE_STRING, "kf42" },
                    161:        [TTYC_KF43] = { TTYCODE_STRING, "kf43" },
                    162:        [TTYC_KF44] = { TTYCODE_STRING, "kf44" },
                    163:        [TTYC_KF45] = { TTYCODE_STRING, "kf45" },
                    164:        [TTYC_KF46] = { TTYCODE_STRING, "kf46" },
                    165:        [TTYC_KF47] = { TTYCODE_STRING, "kf47" },
                    166:        [TTYC_KF48] = { TTYCODE_STRING, "kf48" },
                    167:        [TTYC_KF49] = { TTYCODE_STRING, "kf49" },
1.57    ! nicm      168:        [TTYC_KF4] = { TTYCODE_STRING, "kf4" },
1.38      nicm      169:        [TTYC_KF50] = { TTYCODE_STRING, "kf50" },
                    170:        [TTYC_KF51] = { TTYCODE_STRING, "kf51" },
                    171:        [TTYC_KF52] = { TTYCODE_STRING, "kf52" },
                    172:        [TTYC_KF53] = { TTYCODE_STRING, "kf53" },
                    173:        [TTYC_KF54] = { TTYCODE_STRING, "kf54" },
                    174:        [TTYC_KF55] = { TTYCODE_STRING, "kf55" },
                    175:        [TTYC_KF56] = { TTYCODE_STRING, "kf56" },
                    176:        [TTYC_KF57] = { TTYCODE_STRING, "kf57" },
                    177:        [TTYC_KF58] = { TTYCODE_STRING, "kf58" },
                    178:        [TTYC_KF59] = { TTYCODE_STRING, "kf59" },
1.57    ! nicm      179:        [TTYC_KF5] = { TTYCODE_STRING, "kf5" },
1.38      nicm      180:        [TTYC_KF60] = { TTYCODE_STRING, "kf60" },
                    181:        [TTYC_KF61] = { TTYCODE_STRING, "kf61" },
                    182:        [TTYC_KF62] = { TTYCODE_STRING, "kf62" },
                    183:        [TTYC_KF63] = { TTYCODE_STRING, "kf63" },
1.57    ! nicm      184:        [TTYC_KF6] = { TTYCODE_STRING, "kf6" },
1.38      nicm      185:        [TTYC_KF7] = { TTYCODE_STRING, "kf7" },
                    186:        [TTYC_KF8] = { TTYCODE_STRING, "kf8" },
                    187:        [TTYC_KF9] = { TTYCODE_STRING, "kf9" },
                    188:        [TTYC_KHOM2] = { TTYCODE_STRING, "kHOM" },
                    189:        [TTYC_KHOM3] = { TTYCODE_STRING, "kHOM3" },
                    190:        [TTYC_KHOM4] = { TTYCODE_STRING, "kHOM4" },
                    191:        [TTYC_KHOM5] = { TTYCODE_STRING, "kHOM5" },
                    192:        [TTYC_KHOM6] = { TTYCODE_STRING, "kHOM6" },
                    193:        [TTYC_KHOM7] = { TTYCODE_STRING, "kHOM7" },
                    194:        [TTYC_KHOME] = { TTYCODE_STRING, "khome" },
                    195:        [TTYC_KIC2] = { TTYCODE_STRING, "kIC" },
                    196:        [TTYC_KIC3] = { TTYCODE_STRING, "kIC3" },
                    197:        [TTYC_KIC4] = { TTYCODE_STRING, "kIC4" },
                    198:        [TTYC_KIC5] = { TTYCODE_STRING, "kIC5" },
                    199:        [TTYC_KIC6] = { TTYCODE_STRING, "kIC6" },
                    200:        [TTYC_KIC7] = { TTYCODE_STRING, "kIC7" },
                    201:        [TTYC_KICH1] = { TTYCODE_STRING, "kich1" },
1.57    ! nicm      202:        [TTYC_KIND] = { TTYCODE_STRING, "kind" },
1.38      nicm      203:        [TTYC_KLFT2] = { TTYCODE_STRING, "kLFT" },
                    204:        [TTYC_KLFT3] = { TTYCODE_STRING, "kLFT3" },
                    205:        [TTYC_KLFT4] = { TTYCODE_STRING, "kLFT4" },
                    206:        [TTYC_KLFT5] = { TTYCODE_STRING, "kLFT5" },
                    207:        [TTYC_KLFT6] = { TTYCODE_STRING, "kLFT6" },
                    208:        [TTYC_KLFT7] = { TTYCODE_STRING, "kLFT7" },
                    209:        [TTYC_KMOUS] = { TTYCODE_STRING, "kmous" },
                    210:        [TTYC_KNP] = { TTYCODE_STRING, "knp" },
                    211:        [TTYC_KNXT2] = { TTYCODE_STRING, "kNXT" },
                    212:        [TTYC_KNXT3] = { TTYCODE_STRING, "kNXT3" },
                    213:        [TTYC_KNXT4] = { TTYCODE_STRING, "kNXT4" },
                    214:        [TTYC_KNXT5] = { TTYCODE_STRING, "kNXT5" },
                    215:        [TTYC_KNXT6] = { TTYCODE_STRING, "kNXT6" },
                    216:        [TTYC_KNXT7] = { TTYCODE_STRING, "kNXT7" },
                    217:        [TTYC_KPP] = { TTYCODE_STRING, "kpp" },
                    218:        [TTYC_KPRV2] = { TTYCODE_STRING, "kPRV" },
                    219:        [TTYC_KPRV3] = { TTYCODE_STRING, "kPRV3" },
                    220:        [TTYC_KPRV4] = { TTYCODE_STRING, "kPRV4" },
                    221:        [TTYC_KPRV5] = { TTYCODE_STRING, "kPRV5" },
                    222:        [TTYC_KPRV6] = { TTYCODE_STRING, "kPRV6" },
                    223:        [TTYC_KPRV7] = { TTYCODE_STRING, "kPRV7" },
                    224:        [TTYC_KRIT2] = { TTYCODE_STRING, "kRIT" },
                    225:        [TTYC_KRIT3] = { TTYCODE_STRING, "kRIT3" },
                    226:        [TTYC_KRIT4] = { TTYCODE_STRING, "kRIT4" },
                    227:        [TTYC_KRIT5] = { TTYCODE_STRING, "kRIT5" },
                    228:        [TTYC_KRIT6] = { TTYCODE_STRING, "kRIT6" },
                    229:        [TTYC_KRIT7] = { TTYCODE_STRING, "kRIT7" },
1.57    ! nicm      230:        [TTYC_KRI] = { TTYCODE_STRING, "kri" },
        !           231:        [TTYC_KUP2] = { TTYCODE_STRING, "kUP" }, /* not kUP2 */
1.38      nicm      232:        [TTYC_KUP3] = { TTYCODE_STRING, "kUP3" },
                    233:        [TTYC_KUP4] = { TTYCODE_STRING, "kUP4" },
                    234:        [TTYC_KUP5] = { TTYCODE_STRING, "kUP5" },
                    235:        [TTYC_KUP6] = { TTYCODE_STRING, "kUP6" },
                    236:        [TTYC_KUP7] = { TTYCODE_STRING, "kUP7" },
                    237:        [TTYC_MS] = { TTYCODE_STRING, "Ms" },
                    238:        [TTYC_OP] = { TTYCODE_STRING, "op" },
                    239:        [TTYC_REV] = { TTYCODE_STRING, "rev" },
                    240:        [TTYC_RI] = { TTYCODE_STRING, "ri" },
                    241:        [TTYC_RMACS] = { TTYCODE_STRING, "rmacs" },
                    242:        [TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" },
                    243:        [TTYC_RMKX] = { TTYCODE_STRING, "rmkx" },
                    244:        [TTYC_SETAB] = { TTYCODE_STRING, "setab" },
                    245:        [TTYC_SETAF] = { TTYCODE_STRING, "setaf" },
1.55      nicm      246:        [TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" },
                    247:        [TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" },
1.57    ! nicm      248:        [TTYC_SE] = { TTYCODE_STRING, "Se" },
1.38      nicm      249:        [TTYC_SGR0] = { TTYCODE_STRING, "sgr0" },
                    250:        [TTYC_SITM] = { TTYCODE_STRING, "sitm" },
                    251:        [TTYC_SMACS] = { TTYCODE_STRING, "smacs" },
                    252:        [TTYC_SMCUP] = { TTYCODE_STRING, "smcup" },
                    253:        [TTYC_SMKX] = { TTYCODE_STRING, "smkx" },
                    254:        [TTYC_SMSO] = { TTYCODE_STRING, "smso" },
                    255:        [TTYC_SMUL] = { TTYCODE_STRING, "smul" },
1.53      nicm      256:        [TTYC_SMXX] =  { TTYCODE_STRING, "smxx" },
1.38      nicm      257:        [TTYC_SS] = { TTYCODE_STRING, "Ss" },
1.45      nicm      258:        [TTYC_TC] = { TTYCODE_FLAG, "Tc" },
1.38      nicm      259:        [TTYC_TSL] = { TTYCODE_STRING, "tsl" },
1.57    ! nicm      260:        [TTYC_U8] = { TTYCODE_NUMBER, "U8" },
1.38      nicm      261:        [TTYC_VPA] = { TTYCODE_STRING, "vpa" },
                    262:        [TTYC_XENL] = { TTYCODE_FLAG, "xenl" },
                    263:        [TTYC_XT] = { TTYCODE_FLAG, "XT" },
                    264: };
                    265:
                    266: u_int
                    267: tty_term_ncodes(void)
                    268: {
                    269:        return (nitems(tty_term_codes));
                    270: }
                    271:
1.46      nicm      272: static char *
1.1       nicm      273: tty_term_strip(const char *s)
                    274: {
                    275:        const char     *ptr;
                    276:        static char     buf[BUFSIZ];
                    277:        size_t          len;
                    278:
                    279:        /* Ignore strings with no padding. */
                    280:        if (strchr(s, '$') == NULL)
                    281:                return (xstrdup(s));
                    282:
                    283:        len = 0;
                    284:        for (ptr = s; *ptr != '\0'; ptr++) {
                    285:                if (*ptr == '$' && *(ptr + 1) == '<') {
                    286:                        while (*ptr != '\0' && *ptr != '>')
                    287:                                ptr++;
                    288:                        if (*ptr == '>')
                    289:                                ptr++;
                    290:                }
                    291:
                    292:                buf[len++] = *ptr;
                    293:                if (len == (sizeof buf) - 1)
                    294:                        break;
                    295:        }
                    296:        buf[len] = '\0';
                    297:
                    298:        return (xstrdup(buf));
                    299: }
                    300:
1.46      nicm      301: static void
1.49      nicm      302: tty_term_override(struct tty_term *term, const char *override)
1.1       nicm      303: {
1.19      nicm      304:        const struct tty_term_code_entry        *ent;
                    305:        struct tty_code                         *code;
1.49      nicm      306:        char                                    *next, *s, *copy, *cp, *value;
1.19      nicm      307:        const char                              *errstr;
                    308:        u_int                                    i;
1.49      nicm      309:        int                                      n, remove;
1.5       nicm      310:
1.49      nicm      311:        copy = next = xstrdup(override);
1.5       nicm      312:
1.49      nicm      313:        s = strsep(&next, ":");
                    314:        if (s == NULL || next == NULL || fnmatch(s, term->name, 0) != 0) {
                    315:                free(copy);
                    316:                return;
                    317:        }
1.16      nicm      318:
1.49      nicm      319:        while ((s = strsep(&next, ":")) != NULL) {
                    320:                if (*s == '\0')
1.5       nicm      321:                        continue;
1.49      nicm      322:                value = NULL;
                    323:
                    324:                remove = 0;
                    325:                if ((cp = strchr(s, '=')) != NULL) {
                    326:                        *cp++ = '\0';
                    327:                        value = xstrdup(cp);
                    328:                        if (strunvis(value, cp) == -1) {
                    329:                                free(value);
                    330:                                value = xstrdup(cp);
                    331:                        }
                    332:                } else if (s[strlen(s) - 1] == '@') {
                    333:                        s[strlen(s) - 1] = '\0';
                    334:                        remove = 1;
                    335:                } else
                    336:                        value = xstrdup("");
                    337:
                    338:                if (remove)
                    339:                        log_debug("%s override: %s@", term->name, s);
                    340:                else
                    341:                        log_debug("%s override: %s=%s", term->name, s, value);
                    342:
                    343:                for (i = 0; i < tty_term_ncodes(); i++) {
                    344:                        ent = &tty_term_codes[i];
                    345:                        if (strcmp(s, ent->name) != 0)
1.5       nicm      346:                                continue;
1.49      nicm      347:                        code = &term->codes[i];
1.5       nicm      348:
1.49      nicm      349:                        if (remove) {
                    350:                                code->type = TTYCODE_NONE;
                    351:                                continue;
                    352:                        }
                    353:                        switch (ent->type) {
                    354:                        case TTYCODE_NONE:
                    355:                                break;
                    356:                        case TTYCODE_STRING:
                    357:                                if (code->type == TTYCODE_STRING)
                    358:                                        free(code->value.string);
                    359:                                code->value.string = xstrdup(value);
                    360:                                code->type = ent->type;
                    361:                                break;
                    362:                        case TTYCODE_NUMBER:
                    363:                                n = strtonum(value, 0, INT_MAX, &errstr);
                    364:                                if (errstr != NULL)
1.5       nicm      365:                                        break;
1.49      nicm      366:                                code->value.number = n;
                    367:                                code->type = ent->type;
                    368:                                break;
                    369:                        case TTYCODE_FLAG:
                    370:                                code->value.flag = 1;
                    371:                                code->type = ent->type;
                    372:                                break;
1.5       nicm      373:                        }
1.49      nicm      374:                }
1.5       nicm      375:
1.49      nicm      376:                free(value);
1.1       nicm      377:        }
1.29      nicm      378:        free(s);
1.1       nicm      379: }
                    380:
                    381: struct tty_term *
1.33      nicm      382: tty_term_find(char *name, int fd, char **cause)
1.1       nicm      383: {
1.19      nicm      384:        struct tty_term                         *term;
                    385:        const struct tty_term_code_entry        *ent;
                    386:        struct tty_code                         *code;
1.49      nicm      387:        struct options_entry                    *o;
                    388:        u_int                                    size, i;
1.19      nicm      389:        int                                      n, error;
1.48      nicm      390:        const char                              *s, *acs;
1.1       nicm      391:
1.20      nicm      392:        LIST_FOREACH(term, &tty_terms, entry) {
1.1       nicm      393:                if (strcmp(term->name, name) == 0) {
                    394:                        term->references++;
                    395:                        return (term);
                    396:                }
                    397:        }
1.56      nicm      398:        log_debug("new term: %s", name);
1.1       nicm      399:
                    400:        term = xmalloc(sizeof *term);
                    401:        term->name = xstrdup(name);
                    402:        term->references = 1;
                    403:        term->flags = 0;
1.47      nicm      404:        term->codes = xcalloc(tty_term_ncodes(), sizeof *term->codes);
1.20      nicm      405:        LIST_INSERT_HEAD(&tty_terms, term, entry);
1.1       nicm      406:
1.3       nicm      407:        /* Set up curses terminal. */
1.1       nicm      408:        if (setupterm(name, fd, &error) != OK) {
                    409:                switch (error) {
1.4       matthieu  410:                case 1:
1.43      nicm      411:                        xasprintf(cause, "can't use hardcopy terminal: %s",
                    412:                            name);
1.4       matthieu  413:                        break;
1.1       nicm      414:                case 0:
1.43      nicm      415:                        xasprintf(cause, "missing or unsuitable terminal: %s",
                    416:                            name);
1.1       nicm      417:                        break;
1.4       matthieu  418:                case -1:
1.1       nicm      419:                        xasprintf(cause, "can't find terminfo database");
                    420:                        break;
                    421:                default:
                    422:                        xasprintf(cause, "unknown error");
                    423:                        break;
                    424:                }
                    425:                goto error;
                    426:        }
                    427:
                    428:        /* Fill in codes. */
1.38      nicm      429:        for (i = 0; i < tty_term_ncodes(); i++) {
1.1       nicm      430:                ent = &tty_term_codes[i];
                    431:
1.38      nicm      432:                code = &term->codes[i];
1.1       nicm      433:                code->type = TTYCODE_NONE;
                    434:                switch (ent->type) {
                    435:                case TTYCODE_NONE:
                    436:                        break;
                    437:                case TTYCODE_STRING:
                    438:                        s = tigetstr((char *) ent->name);
                    439:                        if (s == NULL || s == (char *) -1)
                    440:                                break;
                    441:                        code->type = TTYCODE_STRING;
                    442:                        code->value.string = tty_term_strip(s);
                    443:                        break;
                    444:                case TTYCODE_NUMBER:
                    445:                        n = tigetnum((char *) ent->name);
                    446:                        if (n == -1 || n == -2)
                    447:                                break;
                    448:                        code->type = TTYCODE_NUMBER;
                    449:                        code->value.number = n;
                    450:                        break;
                    451:                case TTYCODE_FLAG:
                    452:                        n = tigetflag((char *) ent->name);
                    453:                        if (n == -1)
                    454:                                break;
                    455:                        code->type = TTYCODE_FLAG;
1.40      nicm      456:                        code->value.flag = n;
1.1       nicm      457:                        break;
                    458:                }
                    459:        }
1.33      nicm      460:
                    461:        /* Apply terminal overrides. */
1.49      nicm      462:        o = options_get_only(global_options, "terminal-overrides");
                    463:        if (options_array_size(o, &size) != -1) {
                    464:                for (i = 0; i < size; i++) {
                    465:                        s = options_array_get(o, i);
                    466:                        if (s != NULL)
                    467:                                tty_term_override(term, s);
                    468:                }
                    469:        }
1.1       nicm      470:
1.3       nicm      471:        /* Delete curses data. */
1.1       nicm      472:        del_curterm(cur_term);
                    473:
                    474:        /* These are always required. */
                    475:        if (!tty_term_has(term, TTYC_CLEAR)) {
                    476:                xasprintf(cause, "terminal does not support clear");
                    477:                goto error;
                    478:        }
                    479:        if (!tty_term_has(term, TTYC_CUP)) {
                    480:                xasprintf(cause, "terminal does not support cup");
                    481:                goto error;
                    482:        }
                    483:
                    484:        /* These can be emulated so one of the two is required. */
                    485:        if (!tty_term_has(term, TTYC_CUD1) && !tty_term_has(term, TTYC_CUD)) {
                    486:                xasprintf(cause, "terminal does not support cud1 or cud");
                    487:                goto error;
                    488:        }
                    489:
1.31      nicm      490:        /* Figure out if we have 256. */
1.1       nicm      491:        if (tty_term_number(term, TTYC_COLORS) == 256)
                    492:                term->flags |= TERM_256COLOURS;
                    493:
                    494:        /*
                    495:         * Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
                    496:         * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
                    497:         *
                    498:         * This is irritating, most notably because it is impossible to write
                    499:         * to the very bottom-right of the screen without scrolling.
                    500:         *
                    501:         * Flag the terminal here and apply some workarounds in other places to
                    502:         * do the best possible.
                    503:         */
                    504:        if (!tty_term_flag(term, TTYC_XENL))
                    505:                term->flags |= TERM_EARLYWRAP;
1.18      nicm      506:
                    507:        /* Generate ACS table. If none is present, use nearest ASCII. */
                    508:        memset(term->acs, 0, sizeof term->acs);
                    509:        if (tty_term_has(term, TTYC_ACSC))
                    510:                acs = tty_term_string(term, TTYC_ACSC);
                    511:        else
                    512:                acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~.";
                    513:        for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2)
                    514:                term->acs[(u_char) acs[0]][0] = acs[1];
1.22      nicm      515:
                    516:        /* On terminals with xterm titles (XT), fill in tsl and fsl. */
                    517:        if (tty_term_flag(term, TTYC_XT) &&
                    518:            !tty_term_has(term, TTYC_TSL) &&
                    519:            !tty_term_has(term, TTYC_FSL)) {
                    520:                code = &term->codes[TTYC_TSL];
                    521:                code->value.string = xstrdup("\033]0;");
                    522:                code->type = TTYCODE_STRING;
                    523:                code = &term->codes[TTYC_FSL];
                    524:                code->value.string = xstrdup("\007");
                    525:                code->type = TTYCODE_STRING;
                    526:        }
1.1       nicm      527:
1.55      nicm      528:        /* On terminals with RGB colour (TC), fill in setrgbf and setrgbb. */
                    529:        if (tty_term_flag(term, TTYC_TC) &&
                    530:            !tty_term_has(term, TTYC_SETRGBF) &&
                    531:            !tty_term_has(term, TTYC_SETRGBB)) {
                    532:                code = &term->codes[TTYC_SETRGBF];
                    533:                code->value.string = xstrdup("\033[38;2;%p1%d;%p2%d;%p3%dm");
                    534:                code->type = TTYCODE_STRING;
                    535:                code = &term->codes[TTYC_SETRGBB];
                    536:                code->value.string = xstrdup("\033[48;2;%p1%d;%p2%d;%p3%dm");
                    537:                code->type = TTYCODE_STRING;
                    538:        }
1.56      nicm      539:
                    540:        /* Log it. */
                    541:        for (i = 0; i < tty_term_ncodes(); i++)
                    542:                log_debug("%s%s", name, tty_term_describe(term, i));
1.55      nicm      543:
1.1       nicm      544:        return (term);
                    545:
                    546: error:
                    547:        tty_term_free(term);
                    548:        return (NULL);
                    549: }
                    550:
                    551: void
                    552: tty_term_free(struct tty_term *term)
                    553: {
                    554:        u_int   i;
                    555:
                    556:        if (--term->references != 0)
                    557:                return;
                    558:
1.20      nicm      559:        LIST_REMOVE(term, entry);
1.1       nicm      560:
1.38      nicm      561:        for (i = 0; i < tty_term_ncodes(); i++) {
1.1       nicm      562:                if (term->codes[i].type == TTYCODE_STRING)
1.29      nicm      563:                        free(term->codes[i].value.string);
1.1       nicm      564:        }
1.38      nicm      565:        free(term->codes);
                    566:
1.29      nicm      567:        free(term->name);
                    568:        free(term);
1.1       nicm      569: }
                    570:
                    571: int
                    572: tty_term_has(struct tty_term *term, enum tty_code_code code)
                    573: {
                    574:        return (term->codes[code].type != TTYCODE_NONE);
                    575: }
                    576:
                    577: const char *
                    578: tty_term_string(struct tty_term *term, enum tty_code_code code)
                    579: {
                    580:        if (!tty_term_has(term, code))
                    581:                return ("");
                    582:        if (term->codes[code].type != TTYCODE_STRING)
1.42      nicm      583:                fatalx("not a string: %d", code);
1.1       nicm      584:        return (term->codes[code].value.string);
                    585: }
                    586:
                    587: const char *
                    588: tty_term_string1(struct tty_term *term, enum tty_code_code code, int a)
                    589: {
                    590:        return (tparm((char *) tty_term_string(term, code), a));
                    591: }
                    592:
                    593: const char *
                    594: tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
1.23      nicm      595: {
                    596:        return (tparm((char *) tty_term_string(term, code), a, b));
1.55      nicm      597: }
                    598:
                    599: const char *
                    600: tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b, int c)
                    601: {
                    602:        return (tparm((char *) tty_term_string(term, code), a, b, c));
1.24      nicm      603: }
                    604:
                    605: const char *
                    606: tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a)
                    607: {
                    608:        return (tparm((char *) tty_term_string(term, code), a));
1.23      nicm      609: }
                    610:
                    611: const char *
1.34      nicm      612: tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a,
                    613:     const void *b)
1.1       nicm      614: {
                    615:        return (tparm((char *) tty_term_string(term, code), a, b));
                    616: }
                    617:
                    618: int
                    619: tty_term_number(struct tty_term *term, enum tty_code_code code)
                    620: {
                    621:        if (!tty_term_has(term, code))
                    622:                return (0);
                    623:        if (term->codes[code].type != TTYCODE_NUMBER)
1.42      nicm      624:                fatalx("not a number: %d", code);
1.1       nicm      625:        return (term->codes[code].value.number);
                    626: }
                    627:
                    628: int
                    629: tty_term_flag(struct tty_term *term, enum tty_code_code code)
                    630: {
                    631:        if (!tty_term_has(term, code))
                    632:                return (0);
                    633:        if (term->codes[code].type != TTYCODE_FLAG)
1.42      nicm      634:                fatalx("not a flag: %d", code);
1.1       nicm      635:        return (term->codes[code].value.flag);
1.38      nicm      636: }
                    637:
                    638: const char *
                    639: tty_term_describe(struct tty_term *term, enum tty_code_code code)
                    640: {
                    641:        static char      s[256];
                    642:        char             out[128];
                    643:
                    644:        switch (term->codes[code].type) {
                    645:        case TTYCODE_NONE:
                    646:                xsnprintf(s, sizeof s, "%4u: %s: [missing]",
                    647:                    code, tty_term_codes[code].name);
                    648:                break;
                    649:        case TTYCODE_STRING:
                    650:                strnvis(out, term->codes[code].value.string, sizeof out,
                    651:                    VIS_OCTAL|VIS_TAB|VIS_NL);
                    652:                xsnprintf(s, sizeof s, "%4u: %s: (string) %s",
                    653:                    code, tty_term_codes[code].name,
                    654:                    out);
                    655:                break;
                    656:        case TTYCODE_NUMBER:
                    657:                xsnprintf(s, sizeof s, "%4u: %s: (number) %d",
                    658:                    code, tty_term_codes[code].name,
                    659:                    term->codes[code].value.number);
                    660:                break;
                    661:        case TTYCODE_FLAG:
                    662:                xsnprintf(s, sizeof s, "%4u: %s: (flag) %s",
                    663:                    code, tty_term_codes[code].name,
                    664:                    term->codes[code].value.flag ? "true" : "false");
                    665:                break;
                    666:        }
                    667:        return (s);
1.1       nicm      668: }