diff options
Diffstat (limited to 'termcap.c')
| -rw-r--r-- | termcap.c | 173 |
1 files changed, 127 insertions, 46 deletions
@@ -22,7 +22,7 @@ */ #include "rcs.h" -RCS_ID("$Id: termcap.c,v 1.8 1994/05/31 12:33:13 mlschroe Exp $ FAU") +RCS_ID("$Id: termcap.c,v 1.9 1994/09/06 17:00:31 mlschroe Exp $ FAU") #include <sys/types.h> #include "config.h" @@ -30,36 +30,39 @@ RCS_ID("$Id: termcap.c,v 1.8 1994/05/31 12:33:13 mlschroe Exp $ FAU") #include "extern.h" extern struct display *display, *displays; +extern int real_uid, real_gid, eff_uid, eff_gid; +extern struct term term[]; /* terminal capabilities */ +extern struct NewWindow nwin_undef, nwin_default, nwin_options; +extern int force_vt, assume_LP; +extern int Z0width, Z1width; +extern int hardstatusemu; +#ifdef MAPKEYS +extern struct action umtab[]; +extern struct action mmtab[]; +extern struct action dmtab[]; +extern char *kmap_extras[]; +extern int kmap_extras_fl[]; +extern int DefaultEsc; +#endif + static void AddCap __P((char *)); static void MakeString __P((char *, char *, int, char *)); static char *findcap __P((char *, char **, int)); static int copyarg __P((char **, char *)); +static int e_tgetent __P((char *, char *)); static char *e_tgetstr __P((char *, char **)); static int e_tgetflag __P((char *)); static int e_tgetnum __P((char *)); #ifdef MAPKEYS static int addmapseq __P((char *, int)); static int remmapseq __P((char *)); -#ifdef DEBUG +#ifdef DEBUGG static void dumpmap __P((void)); #endif #endif -extern struct term term[]; /* terminal capabilities */ -extern struct NewWindow nwin_undef, nwin_default, nwin_options; -extern int force_vt, assume_LP; -extern int Z0width, Z1width; -#ifdef MAPKEYS -extern struct action umtab[]; -extern struct action mmtab[]; -extern struct action dmtab[]; -extern char *kmap_extras[]; -extern int kmap_extras_fl[]; -extern int DefaultEsc; -#endif - char Termcap[TERMCAP_BUFSIZE + 8]; /* new termcap +8:"TERMCAP=" */ static int Termcaplen; static int tcLineLen; @@ -92,6 +95,11 @@ char *s; return 0; } +/* + * Compile the terminal capabilities for a display. + * Input: tgetent(, D_termname) extra_incap, extra_outcap. + * Effect: display initialisation. + */ int InitTermcap(wi, he) int wi; @@ -105,7 +113,7 @@ int he; ASSERT(display); bzero(tbuf, sizeof(tbuf)); debug1("InitTermcap: looking for tgetent('%s')\n", D_termname); - if (*D_termname == 0 || tgetent(tbuf, D_termname) != 1) + if (*D_termname == 0 || e_tgetent(tbuf, D_termname) != 1) { #ifdef TERMINFO Msg(0, "Cannot find terminfo entry for '%s'.", D_termname); @@ -114,7 +122,7 @@ int he; #endif return -1; } - debug1("got it:\n%s\n",tbuf); + debug1("got it:\n%s\n", tbuf); #ifdef DEBUG if (extra_incap) debug1("Extra incap: %s\n", extra_incap); @@ -128,6 +136,9 @@ int he; return -1; } + /* + * loop through all needed capabilities, record their values in the display + */ tp = D_tentry; for (i = 0; i < T_N; i++) { @@ -150,6 +161,10 @@ int he; /*NOTREACHED*/ } } + + /* + * Now a good deal of sanity checks on the retrieved capabilities. + */ if (D_HC) { Msg(0, "You can't run screen on a hardcopy terminal."); @@ -183,12 +198,33 @@ int he; if (D_LI <= 0) D_LI = 24; + if (D_CTF) + { + /* standard fixes for xterms etc */ + /* assume color for everything that looks ansi-compatible */ + if (!D_CAF && D_ME && InStr(D_ME, "\033[m")) + { +#ifdef TERMINFO + D_CAF = "\033[3%p1%dm"; + D_CAB = "\033[4%p1%dm"; +#else + D_CAF = "\033[3%dm"; + D_CAB = "\033[4%dm"; +#endif + } + if (D_OP && InStr(D_OP, "\033[39;49m")) + D_CAX = 1; + if (strcmp(D_termname, "xterm-color") == 0) + D_BE = 1; + /* ISO2022 */ + if ((D_EA && InStr(D_EA, "\033(B")) || (D_AS && InStr(D_AS, "\033(0"))) + D_CG0 = 1; + } if (nwin_options.flowflag == nwin_undef.flowflag) nwin_default.flowflag = D_CNF ? FLOW_NOW * 0 : D_NX ? FLOW_NOW * 1 : FLOW_AUTOFLAG; - D_CLP |= (assume_LP || !D_AM || D_XV || D_XN || - (!extra_incap && !strncmp(D_termname, "vt", 2))); + D_CLP |= (assume_LP || !D_AM || D_XV || D_XN); if (!D_BL) D_BL = "\007"; if (!D_BC) @@ -290,6 +326,8 @@ int he; D_CAF = D_CSF; D_CAB = D_CSB; } + if (D_BE) + D_UT = 1; /* screen erased with background color */ if (!D_DO) D_DO = D_NL; @@ -310,6 +348,8 @@ int he; D_VI = D_VS = 0; if (D_CCE == 0) D_CCS = 0; + +#ifdef FONT if (D_CG0) { if (D_CS0 == 0) @@ -321,6 +361,7 @@ int he; if (D_CE0 == 0) D_CE0 = "\033(B"; D_AC = 0; + D_EA = 0; } else if (D_AC || (D_AS && D_AE)) /* some kind of graphics */ { @@ -348,13 +389,16 @@ int he; for (i = strlen(D_CC0) & ~1; i >= 0; i -= 2) D_c0_tab[(int)(unsigned char)D_CC0[i]] = D_CC0[i + 1]; debug1("ISO2022 = %d\n", D_CG0); +#endif /* FONT */ if (D_PF == 0) D_PO = 0; debug2("terminal size is %d, %d (says TERMCAP)\n", D_CO, D_LI); +#ifdef FONT if (D_CXC) if (CreateTransTable(D_CXC)) return -1; +#endif /* Termcap fields Z0 & Z1 contain width-changing sequences. */ if (D_CZ1 == 0) @@ -372,6 +416,10 @@ int he; if (D_WS <= 0) D_WS = D_width; } + D_has_hstatus = hardstatusemu & ~HSTATUS_ALWAYS; + if (D_HS && !(hardstatusemu & HSTATUS_ALWAYS)) + D_has_hstatus = HSTATUS_HS; + #ifdef KANJI D_kanji = 0; if (D_CKJ) @@ -382,6 +430,10 @@ int he; D_kanji = SJIS; } #endif + if (!D_tcs[T_NAVIGATE].str && D_tcs[T_NAVIGATE + 1].str) + D_tcs[T_NAVIGATE].str = D_tcs[T_NAVIGATE + 1].str; /* kh = @1 */ + if (!D_tcs[T_NAVIGATE + 2].str && D_tcs[T_NAVIGATE + 3].str) + D_tcs[T_NAVIGATE + 2].str = D_tcs[T_NAVIGATE + 3].str; /* kH = @7 */ D_UPcost = CalcCost(D_UP); D_DOcost = CalcCost(D_DO); @@ -403,6 +455,7 @@ int he; { debug1("termcap has OL (%d), setting limit\n", D_COL); D_obufmax = D_COL; + D_obuflenmax = D_obuflen - D_obufmax; } #ifdef MAPKEYS D_nseqs = 0; @@ -493,13 +546,13 @@ CheckEscape() for (display = displays; display; display = display->d_next) { for (i = 0; i < D_nseqs; i++) - { - nr = D_kmaps[i].nr & ~KMAP_NOTIMEOUT; - if (umtab[nr].nr == RC_COMMAND) - break; - if (umtab[nr].nr == RC_ILLEGAL && dmtab[nr].nr == RC_COMMAND) - break; - } + { + nr = D_kmaps[i].nr & ~KMAP_NOTIMEOUT; + if (umtab[nr].nr == RC_COMMAND) + break; + if (umtab[nr].nr == RC_ILLEGAL && dmtab[nr].nr == RC_COMMAND) + break; + } if (i >= D_nseqs) break; } @@ -509,8 +562,10 @@ CheckEscape() return; } ParseEscape((struct user *)0, "^aa"); - if (odisplay->d_user->u_Esc <= 0) + if (odisplay->d_user->u_Esc == -1) odisplay->d_user->u_Esc = DefaultEsc; + if (odisplay->d_user->u_MetaEsc == -1) + odisplay->d_user->u_MetaEsc = DefaultMetaEsc; display = 0; Msg(0, "Warning: escape char set back to ^A"); display = odisplay; @@ -570,7 +625,7 @@ int nr; continue; (*o)++; } -#ifdef DEBUG +#ifdef DEBUGG dumpmap(); #endif return 0; @@ -599,13 +654,13 @@ char *seq; for (j = i + 1; j < D_nseqs; j++) D_kmaps[j - 1] = D_kmaps[j]; D_nseqs--; -#ifdef DEBUG +#ifdef DEBUGG dumpmap(); #endif return 0; } -#ifdef DEBUG +#ifdef DEBUGG static void dumpmap() { @@ -627,10 +682,13 @@ dumpmap() debug2(" ==> %d%s\n", n & ~KMAP_NOTIMEOUT, (n & KMAP_NOTIMEOUT) ? " (no timeout)" : ""); } } -#endif +#endif /* DEBUGG */ -#endif +#endif /* MAPKEYS */ +/* + * Appends to the static variable Termcap + */ static void AddCap(s) char *s; @@ -653,6 +711,10 @@ char *s; Panic(0, "TERMCAP overflow - sorry."); } +/* + * Reads a displays capabilities and reconstructs a termcap entry in the + * global buffer "Termcap". A pointer to this buffer is returned. + */ char * MakeTermcap(aflag) int aflag; @@ -696,17 +758,17 @@ int aflag; if (!aflag && strlen(screenterm) + strlen(tname) < MAXSTR-1) { sprintf(p, "%s.%s", screenterm, tname); - if (tgetent(buf, p) == 1) + if (e_tgetent(buf, p) == 1) break; } if (wi >= 132) { sprintf(p, "%s-w", screenterm); - if (tgetent(buf, p) == 1) + if (e_tgetent(buf, p) == 1) break; } strcpy(p, screenterm); - if (tgetent(buf, p) == 1) + if (e_tgetent(buf, p) == 1) break; strcpy(p, "vt100"); } @@ -714,22 +776,21 @@ int aflag; /* check for compatibility problems, displays == 0 after fork */ { - char *tgetstr(), xbuf[TERMCAP_BUFSIZE], *xbp = xbuf; + char xbuf[TERMCAP_BUFSIZE], *xbp = xbuf; if (tgetstr("im", &xbp) && tgetstr("ic", &xbp) && displays) { #ifdef TERMINFO - Msg(0, "Warning: smir and ich1 set in %s terminfo entry", p); + Msg(0, "Warning: smir and ich1 set in %s terminfo entry", p); #else - Msg(0, "Warning: im and ic set in %s termcap entry", p); + Msg(0, "Warning: im and ic set in %s termcap entry", p); #endif } } - + tcLineLen = 100; /* Force NL */ if (strlen(Term) > TERMCAP_BUFSIZE - 40) strcpy(Term, "too_long"); - sprintf(Termcap, - "TERMCAP=SC|%s|VT 100/ANSI X3.64 virtual terminal", Term + 5); + sprintf(Termcap, "TERMCAP=SC|%s|VT 100/ANSI X3.64 virtual terminal:", Term + 5); Termcaplen = strlen(Termcap); debug1("MakeTermcap decided '%s'\n", p); if (extra_outcap && *extra_outcap) @@ -831,7 +892,7 @@ int aflag; } #endif if (D_CG0) - AddCap("G0:"); + AddCap("G0:"); if (D_CC0 || (D_CS0 && *D_CS0)) { AddCap("as=\\E(0:"); @@ -962,6 +1023,7 @@ char *s; #define QUOTES(p) \ (*p == '\\' && (p[1] == '\\' || p[1] == ',' || p[1] == '%')) +#ifdef FONT int CreateTransTable(s) char *s; @@ -1048,7 +1110,7 @@ char *s; *sx++ = *p; } *sx = 0; - ASSERT(ctable[c] + l == sx); + ASSERT(ctable[c] + l * templnsub + templlen == sx); debug3("XC: %c %c->%s\n", curchar, c, ctable[c]); } if (*s == ',') @@ -1073,10 +1135,11 @@ FreeTransTable() for (j = 0; j < 257; j++, q++) if (*q) free(*q); - free((char *)*p); + free(*p); } - free((char *)D_xtable); + free(D_xtable); } +#endif /* FONT */ static int copyarg(pp, s) @@ -1106,6 +1169,24 @@ char **pp, *s; ** */ +static int +e_tgetent(bp, name) +char *bp, *name; +{ + int r; + +#ifdef USE_SETEUID + xseteuid(real_uid); + xsetegid(real_gid); +#endif + r = tgetent(bp, name); +#ifdef USE_SETEUID + xseteuid(eff_uid); + xsetegid(eff_gid); +#endif + return r; +} + /* findcap: * cap = capability we are looking for @@ -1230,7 +1311,7 @@ e_tgetstr(cap, tepp) char *cap; char **tepp; { - char *tep, *tgetstr(); + char *tep; if ((tep = findcap(cap, tepp, 0))) return (*tep == '@') ? 0 : tep; return tgetstr(cap, tepp); |