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1 /* trmsbr.c - minor termcap support (load with -ltermlib) */
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2 #ifndef lint
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12
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3 static char ident[] = "@(#)$Id: trmsbr.c,v 1.1.1.1 2005/04/18 14:46:07 kono Exp $";
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0
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4 #endif /* lint */
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5
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6 #include "../h/mh.h"
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7 #include <stdio.h>
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8 #ifndef SYS5
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9 #include <sgtty.h>
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10 #if defined(ULTRIX) && !defined(BSD43)
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11 #undef TIOCGWINSZ
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12 #endif
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13 #else /* SYS5 */
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14 #include <sys/types.h>
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15 #include <termio.h>
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16 #ifndef NOIOCTLH
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17 #include <sys/ioctl.h>
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18 #endif /* NOIOCTLH */
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19 #undef TIOCGWINSZ
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20 #endif /* SYS5 */
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21
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22
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23 #if BUFSIZ<2048
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24 #define TXTSIZ 2048
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25 #else
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26 #define TXTSIZ BUFSIZ
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27 #endif
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28
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29 #ifndef SYS5
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30 extern char PC;
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31 extern short ospeed;
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32 #else /* SYS5 */
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33 char PC;
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34 short ospeed;
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35 #endif /* SYS5 */
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36
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37 int tgetent (), tgetnum ();
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38 char *tgetstr ();
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39
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40 /* */
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41
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42 static int HC = 0;
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43
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44 static int initLI = 0;
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45 static int LI = 40;
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46 static int initCO = 0;
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47 static int CO = 80;
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48 static char *CL = NULL;
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49 static char *SE = NULL;
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50 static char *SO = NULL;
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51
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52 static char termcap[TXTSIZ];
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53
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54 /* */
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55
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56 static read_termcap () {
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57 register char *bp,
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58 *term;
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59 char *cp,
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60 myterm[TXTSIZ];
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61 #ifndef SYS5
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62 struct sgttyb sg;
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63 #else /* SYS5 */
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64 struct termio sg;
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65 #endif /* SYS5 */
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66 static int inited = 0;
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67
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68 if (inited++)
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69 return;
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70
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71 if ((term = getenv ("TERM")) == NULL || tgetent (myterm, term) <= OK)
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72 return;
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73
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74 #ifndef SYS5
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75 ospeed = ioctl (fileno (stdout), TIOCGETP, (char *) &sg) != NOTOK
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76 ? sg.sg_ospeed : 0;
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77 #else /* SYS5 */
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78 ospeed = ioctl (fileno (stdout), TCGETA, &sg) != NOTOK
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79 ? sg.c_cflag & CBAUD : 0;
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80 #endif /* SYS5 */
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81
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82 HC = tgetflag ("hc");
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83
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84 if (!initCO && (CO = tgetnum ("co")) <= 0)
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85 CO = 80;
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86 if (!initLI && (LI = tgetnum ("li")) <= 0)
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87 LI = 24;
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88
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89 cp = termcap;
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90 CL = tgetstr ("cl", &cp);
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91 if (bp = tgetstr ("pc", &cp))
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92 PC = *bp;
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93 if (tgetnum ("sg") <= 0) {
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94 SE = tgetstr ("se", &cp);
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95 SO = tgetstr ("so", &cp);
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96 }
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97 }
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98
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99 /* */
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100
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101 int sc_width () {
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102 #ifdef TIOCGWINSZ
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103 struct winsize win;
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104 int width;
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105
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106 if (ioctl (fileno (stderr), TIOCGWINSZ, &win) != NOTOK
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107 && (width = win.ws_col) > 0) {
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108 CO = width;
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109 initCO++;
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110 } else
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111 #endif /* TIOCGWINSZ */
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112 read_termcap ();
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113
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114 return CO;
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115 }
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116
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117
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118 int sc_length () {
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119 #ifdef TIOCGWINSZ
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120 struct winsize win;
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121
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122 if (ioctl (fileno (stderr), TIOCGWINSZ, &win) != NOTOK
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123 && (LI = win.ws_row) > 0)
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124 initLI++;
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125 else
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126 #endif /* TIOCGWINSZ */
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127 read_termcap ();
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128
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129 return LI;
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130 }
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131
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132 /* */
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133
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134 static int outc (c)
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135 register char c;
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136 {
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137 (void) putchar (c);
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138 }
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139
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140
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141 void clear_screen () {
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142 read_termcap ();
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143
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144 if (CL && ospeed)
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145 tputs (CL, LI, outc);
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146 else {
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147 printf ("\f");
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148 if (ospeed)
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149 printf ("\200");
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150 }
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151
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152 (void) fflush (stdout);
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153 }
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154
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155 /* */
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156
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157 /* VARARGS1 */
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158
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159 int SOprintf (fmt, a, b, c, d, e, f)
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160 char *fmt,
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161 *a,
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162 *b,
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163 *c,
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164 *d,
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165 *e,
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166 *f;
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167 {
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168 read_termcap ();
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169 if (SO == NULL || SE == NULL)
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170 return NOTOK;
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171
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172 tputs (SO, 1, outc);
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173 printf (fmt, a, b, c, d, e, f);
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174 tputs (SE, 1, outc);
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175
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176 return OK;
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177 }
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178
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179 /* */
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180
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181 int sc_hardcopy () {
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182 read_termcap ();
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183
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184 return HC;
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185 }
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