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term.c

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00001 /* 00002 * Asterisk -- A telephony toolkit for Linux. 00003 * 00004 * Channel Management 00005 * 00006 * Copyright (C) 1999, Mark Spencer 00007 * 00008 * Mark Spencer <markster@linux-support.net> 00009 * 00010 * This program is free software, distributed under the terms of 00011 * the GNU General Public License 00012 */ 00013 00014 #include <stdio.h> 00015 #include <stdlib.h> 00016 #include <string.h> 00017 #include <sys/time.h> 00018 #include <signal.h> 00019 #include <errno.h> 00020 #include <unistd.h> 00021 #include <asterisk/term.h> 00022 #include <asterisk/options.h> 00023 #include <asterisk/lock.h> 00024 #include "asterisk.h" 00025 00026 static int vt100compat = 0; 00027 00028 static char prepdata[80] = ""; 00029 static char enddata[80] = ""; 00030 static char quitdata[80] = ""; 00031 00032 int term_init(void) 00033 { 00034 char *term = getenv("TERM"); 00035 if (!term) 00036 return 0; 00037 if (!option_console || option_nocolor || !option_nofork) 00038 return 0; 00039 if (!strncasecmp(term, "linux", 5)) 00040 vt100compat = 1; else 00041 if (!strncasecmp(term, "xterm", 5)) 00042 vt100compat = 1; else 00043 if (!strncasecmp(term, "Eterm", 5)) 00044 vt100compat = 1; else 00045 if (!strncasecmp(term, "crt", 3)) 00046 vt100compat = 1; else 00047 if (!strncasecmp(term, "vt", 2)) 00048 vt100compat = 1; 00049 if (vt100compat) { 00050 /* Make commands show up in nice colors */ 00051 snprintf(prepdata, sizeof(prepdata), "%c[%d;%d;%dm", ESC, ATTR_BRIGHT, COLOR_BROWN, COLOR_BLACK + 10); 00052 snprintf(enddata, sizeof(enddata), "%c[%d;%d;%dm", ESC, ATTR_RESET, COLOR_WHITE, COLOR_BLACK + 10); 00053 snprintf(quitdata, sizeof(quitdata), "%c[0m", ESC); 00054 } 00055 return 0; 00056 } 00057 00058 char *term_color(char *outbuf, const char *inbuf, int fgcolor, int bgcolor, int maxout) 00059 { 00060 int attr=0; 00061 char tmp[40]; 00062 if (!vt100compat) { 00063 strncpy(outbuf, inbuf, maxout -1); 00064 return outbuf; 00065 } 00066 if (!fgcolor && !bgcolor) { 00067 strncpy(outbuf, inbuf, maxout - 1); 00068 return outbuf; 00069 } 00070 if ((fgcolor & 128) && (bgcolor & 128)) { 00071 /* Can't both be highlighted */ 00072 strncpy(outbuf, inbuf, maxout - 1); 00073 return outbuf; 00074 } 00075 if (!bgcolor) 00076 bgcolor = COLOR_BLACK; 00077 00078 if (bgcolor) { 00079 bgcolor &= ~128; 00080 bgcolor += 10; 00081 } 00082 if (fgcolor & 128) { 00083 attr = ATTR_BRIGHT; 00084 fgcolor &= ~128; 00085 } 00086 if (fgcolor && bgcolor) { 00087 snprintf(tmp, sizeof(tmp), "%d;%d", fgcolor, bgcolor); 00088 } else if (bgcolor) { 00089 snprintf(tmp, sizeof(tmp), "%d", bgcolor); 00090 } else if (fgcolor) { 00091 snprintf(tmp, sizeof(tmp), "%d", fgcolor); 00092 } 00093 if (attr) { 00094 snprintf(outbuf, maxout, "%c[%d;%sm%s%c[0;%d;%dm", ESC, attr, tmp, inbuf, ESC, COLOR_WHITE, COLOR_BLACK + 10); 00095 } else { 00096 snprintf(outbuf, maxout, "%c[%sm%s%c[0;%d;%dm", ESC, tmp, inbuf, ESC, COLOR_WHITE, COLOR_BLACK + 10); 00097 } 00098 return outbuf; 00099 } 00100 00101 char *term_color_code(char *outbuf, int fgcolor, int bgcolor, int maxout) 00102 { 00103 int attr=0; 00104 char tmp[40]; 00105 if ((!vt100compat) || (!fgcolor && !bgcolor)) { 00106 *outbuf = '\0'; 00107 return outbuf; 00108 } 00109 if ((fgcolor & 128) && (bgcolor & 128)) { 00110 /* Can't both be highlighted */ 00111 *outbuf = '\0'; 00112 return outbuf; 00113 } 00114 if (!bgcolor) 00115 bgcolor = COLOR_BLACK; 00116 00117 if (bgcolor) { 00118 bgcolor &= ~128; 00119 bgcolor += 10; 00120 } 00121 if (fgcolor & 128) { 00122 attr = ATTR_BRIGHT; 00123 fgcolor &= ~128; 00124 } 00125 if (fgcolor && bgcolor) { 00126 snprintf(tmp, sizeof(tmp), "%d;%d", fgcolor, bgcolor); 00127 } else if (bgcolor) { 00128 snprintf(tmp, sizeof(tmp), "%d", bgcolor); 00129 } else if (fgcolor) { 00130 snprintf(tmp, sizeof(tmp), "%d", fgcolor); 00131 } 00132 if (attr) { 00133 snprintf(outbuf, maxout, "%c[%d;%sm", ESC, attr, tmp); 00134 } else { 00135 snprintf(outbuf, maxout, "%c[%sm", ESC, tmp); 00136 } 00137 return outbuf; 00138 } 00139 00140 char *term_strip(char *outbuf, char *inbuf, int maxout) 00141 { 00142 char *outbuf_ptr = outbuf, *inbuf_ptr = inbuf; 00143 00144 while (outbuf_ptr < outbuf + maxout) { 00145 switch (*inbuf_ptr) { 00146 case ESC: 00147 while (*inbuf_ptr && (*inbuf_ptr != 'm')) 00148 inbuf_ptr++; 00149 break; 00150 default: 00151 *outbuf_ptr = *inbuf_ptr; 00152 outbuf_ptr++; 00153 } 00154 if (! *inbuf_ptr) 00155 break; 00156 inbuf_ptr++; 00157 } 00158 return outbuf; 00159 } 00160 00161 char *term_prompt(char *outbuf, const char *inbuf, int maxout) 00162 { 00163 if (!vt100compat) { 00164 strncpy(outbuf, inbuf, maxout -1); 00165 return outbuf; 00166 } 00167 snprintf(outbuf, maxout, "%c[%d;%d;%dm%c%c[%d;%d;%dm%s", 00168 ESC, ATTR_BRIGHT, COLOR_BLUE, COLOR_BLACK + 10, 00169 inbuf[0], 00170 ESC, 0, COLOR_WHITE, COLOR_BLACK + 10, 00171 inbuf + 1); 00172 return outbuf; 00173 } 00174 00175 char *term_prep(void) 00176 { 00177 return prepdata; 00178 } 00179 00180 char *term_end(void) 00181 { 00182 return enddata; 00183 } 00184 00185 char *term_quit(void) 00186 { 00187 return quitdata; 00188 }

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