#include "asterisk.h"
#include "asterisk/_private.h"
#include <sys/time.h>
#include <signal.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "asterisk/term.h"
#include "asterisk/lock.h"
#include "asterisk/utils.h"
Go to the source code of this file.
Functions | |
int | ast_term_color_code (struct ast_str **str, int fgcolor, int bgcolor) |
Append a color sequence to an ast_str. | |
int | ast_term_init (void) |
static void | check_bgcolor (int *bgcolor) |
static int | check_colors_allowed (int fgcolor) |
static void | check_fgcolor (int *fgcolor, int *attr) |
static short | convshort (char *s) |
static int | opposite (int color) |
char * | term_color (char *outbuf, const char *inbuf, int fgcolor, int bgcolor, int maxout) |
char * | term_color_code (char *outbuf, int fgcolor, int bgcolor, int maxout) |
Write a color sequence to a string. | |
char * | term_end (void) |
void | term_filter_escapes (char *line) |
char * | term_prep (void) |
char * | term_prompt (char *outbuf, const char *inbuf, int maxout) |
char * | term_quit (void) |
char * | term_strip (char *outbuf, const char *inbuf, int maxout) |
Variables | |
static char | enddata [80] = "" |
static char | prepdata [80] = "" |
static char | quitdata [80] = "" |
static const char *const | termpath [] |
static int | vt100compat |
Definition in file term.c.
int ast_term_color_code | ( | struct ast_str ** | str, | |
int | fgcolor, | |||
int | bgcolor | |||
) |
Append a color sequence to an ast_str.
str | The string to append to | |
fgcolor | foreground color | |
bgcolor | background color |
0 | success | |
-1 | failure |
Definition at line 236 of file term.c.
References ast_opt_force_black_background, ast_str_append(), check_bgcolor(), check_colors_allowed(), check_fgcolor(), COLOR_BLACK, ESC, and str.
Referenced by ast_xmldoc_printable(), data_result_print_cli(), and data_result_print_cli_node().
00237 { 00238 int attr = 0; 00239 00240 if (!check_colors_allowed(fgcolor)) { 00241 return -1; 00242 } 00243 00244 check_fgcolor(&fgcolor, &attr); 00245 check_bgcolor(&bgcolor); 00246 00247 if (ast_opt_force_black_background) { 00248 ast_str_append(str, 0, "%c[%d;%d;%dm", ESC, attr, fgcolor, COLOR_BLACK + 10); 00249 } else if (bgcolor) { 00250 ast_str_append(str, 0, "%c[%d;%d;%dm", ESC, attr, fgcolor, bgcolor + 10); 00251 } else { 00252 ast_str_append(str, 0, "%c[%d;%dm", ESC, attr, fgcolor); 00253 } 00254 00255 return 0; 00256 }
int ast_term_init | ( | void | ) |
Provided by term.c
Definition at line 83 of file term.c.
References ast_opt_console, ast_opt_force_black_background, ast_opt_light_background, ast_opt_no_color, ATTR_BRIGHT, ATTR_RESET, COLOR_BLACK, COLOR_BROWN, COLOR_WHITE, convshort(), and ESC.
Referenced by main().
00084 { 00085 char *term = getenv("TERM"); 00086 char termfile[256] = ""; 00087 char buffer[512] = ""; 00088 int termfd = -1, parseokay = 0, i; 00089 00090 if (ast_opt_no_color) { 00091 return 0; 00092 } 00093 00094 if (!ast_opt_console) { 00095 /* If any remote console is not compatible, we'll strip the color codes at that point */ 00096 vt100compat = 1; 00097 goto end; 00098 } 00099 00100 if (!term) { 00101 return 0; 00102 } 00103 00104 for (i = 0;; i++) { 00105 if (termpath[i] == NULL) { 00106 break; 00107 } 00108 snprintf(termfile, sizeof(termfile), "%s/%c/%s", termpath[i], *term, term); 00109 termfd = open(termfile, O_RDONLY); 00110 if (termfd > -1) { 00111 break; 00112 } 00113 } 00114 if (termfd > -1) { 00115 int actsize = read(termfd, buffer, sizeof(buffer) - 1); 00116 short sz_names = convshort(buffer + 2); 00117 short sz_bools = convshort(buffer + 4); 00118 short n_nums = convshort(buffer + 6); 00119 00120 /* if ((sz_names + sz_bools) & 1) 00121 sz_bools++; */ 00122 00123 if (sz_names + sz_bools + n_nums < actsize) { 00124 /* Offset 13 is defined in /usr/include/term.h, though we do not 00125 * include it here, as it conflicts with include/asterisk/term.h */ 00126 short max_colors = convshort(buffer + 12 + sz_names + sz_bools + 13 * 2); 00127 if (max_colors > 0) { 00128 vt100compat = 1; 00129 } 00130 parseokay = 1; 00131 } 00132 close(termfd); 00133 } 00134 00135 if (!parseokay) { 00136 /* These comparisons should not be substrings nor case-insensitive, as 00137 * terminal types are very particular about how they treat suffixes and 00138 * capitalization. For example, terminal type 'linux-m' does NOT 00139 * support color, while 'linux' does. Not even all vt100* terminals 00140 * support color, either (e.g. 'vt100+fnkeys'). */ 00141 if (!strcmp(term, "linux")) { 00142 vt100compat = 1; 00143 } else if (!strcmp(term, "xterm")) { 00144 vt100compat = 1; 00145 } else if (!strcmp(term, "xterm-color")) { 00146 vt100compat = 1; 00147 } else if (!strncmp(term, "Eterm", 5)) { 00148 /* Both entries which start with Eterm support color */ 00149 vt100compat = 1; 00150 } else if (!strcmp(term, "vt100")) { 00151 vt100compat = 1; 00152 } else if (!strncmp(term, "crt", 3)) { 00153 /* Both crt terminals support color */ 00154 vt100compat = 1; 00155 } 00156 } 00157 00158 end: 00159 if (vt100compat) { 00160 /* Make commands show up in nice colors */ 00161 if (ast_opt_light_background) { 00162 snprintf(prepdata, sizeof(prepdata), "%c[%dm", ESC, COLOR_BROWN); 00163 snprintf(enddata, sizeof(enddata), "%c[%dm", ESC, COLOR_BLACK); 00164 snprintf(quitdata, sizeof(quitdata), "%c[0m", ESC); 00165 } else if (ast_opt_force_black_background) { 00166 snprintf(prepdata, sizeof(prepdata), "%c[%d;%d;%dm", ESC, ATTR_BRIGHT, COLOR_BROWN, COLOR_BLACK + 10); 00167 snprintf(enddata, sizeof(enddata), "%c[%d;%d;%dm", ESC, ATTR_RESET, COLOR_WHITE, COLOR_BLACK + 10); 00168 snprintf(quitdata, sizeof(quitdata), "%c[0m", ESC); 00169 } else { 00170 snprintf(prepdata, sizeof(prepdata), "%c[%d;%dm", ESC, ATTR_BRIGHT, COLOR_BROWN); 00171 snprintf(enddata, sizeof(enddata), "%c[%d;%dm", ESC, ATTR_RESET, COLOR_WHITE); 00172 snprintf(quitdata, sizeof(quitdata), "%c[0m", ESC); 00173 } 00174 } 00175 return 0; 00176 }
static void check_bgcolor | ( | int * | bgcolor | ) | [static] |
static int check_colors_allowed | ( | int | fgcolor | ) | [static] |
Definition at line 231 of file term.c.
Referenced by ast_term_color_code(), and term_color_code().
00232 { 00233 return (!vt100compat || !fgcolor) ? 0 : 1; 00234 }
static void check_fgcolor | ( | int * | fgcolor, | |
int * | attr | |||
) | [static] |
Definition at line 212 of file term.c.
References ast_opt_light_background, ATTR_BRIGHT, and opposite().
Referenced by ast_term_color_code(), and term_color_code().
00213 { 00214 if (*fgcolor & 128) { 00215 *attr = ast_opt_light_background ? 0 : ATTR_BRIGHT; 00216 *fgcolor &= ~128; 00217 } 00218 00219 if (ast_opt_light_background) { 00220 *fgcolor = opposite(*fgcolor); 00221 } 00222 }
static short convshort | ( | char * | s | ) | [static] |
Definition at line 68 of file term.c.
Referenced by ast_term_init().
00069 { 00070 register int a, b; 00071 00072 a = (int) s[0] & 0377; 00073 b = (int) s[1] & 0377; 00074 00075 if (a == 0377 && b == 0377) 00076 return -1; 00077 if (a == 0376 && b == 0377) 00078 return -2; 00079 00080 return a + b * 256; 00081 }
static int opposite | ( | int | color | ) | [static] |
Definition at line 53 of file term.c.
References COLOR_BLACK, COLOR_BLUE, COLOR_BROWN, COLOR_CYAN, COLOR_GREEN, COLOR_MAGENTA, and COLOR_RED.
Referenced by check_fgcolor(), and term_color().
00054 { 00055 int lookup[] = { 00056 /* BLACK */ COLOR_BLACK, 00057 /* RED */ COLOR_MAGENTA, 00058 /* GREEN */ COLOR_GREEN, 00059 /* BROWN */ COLOR_BROWN, 00060 /* BLUE */ COLOR_CYAN, 00061 /* MAGENTA */ COLOR_RED, 00062 /* CYAN */ COLOR_BLUE, 00063 /* WHITE */ COLOR_BLACK }; 00064 return color ? lookup[color - 30] : 0; 00065 }
char* term_color | ( | char * | outbuf, | |
const char * | inbuf, | |||
int | fgcolor, | |||
int | bgcolor, | |||
int | maxout | |||
) |
Definition at line 178 of file term.c.
References ast_copy_string(), ast_opt_force_black_background, ast_opt_light_background, ATTR_BRIGHT, COLOR_BLACK, COLOR_WHITE, ESC, and opposite().
Referenced by __ast_custom_function_register(), __ast_register_translator(), ast_frame_dump(), ast_register_application2(), ast_unregister_translator(), fix_header(), handle_cli_agi_show(), handle_dahdi_show_cadences(), handle_show_function(), handle_showmancmd(), logger_print_normal(), lua_pbx_exec(), main(), pbx_extension_helper(), print_app_docs(), show_config_description(), and start_resource().
00179 { 00180 int attr = 0; 00181 00182 if (!vt100compat) { 00183 ast_copy_string(outbuf, inbuf, maxout); 00184 return outbuf; 00185 } 00186 if (!fgcolor) { 00187 ast_copy_string(outbuf, inbuf, maxout); 00188 return outbuf; 00189 } 00190 00191 if (fgcolor & 128) { 00192 attr = ast_opt_light_background ? 0 : ATTR_BRIGHT; 00193 fgcolor &= ~128; 00194 } 00195 00196 if (bgcolor) { 00197 bgcolor &= ~128; 00198 } 00199 00200 if (ast_opt_light_background) { 00201 fgcolor = opposite(fgcolor); 00202 } 00203 00204 if (ast_opt_force_black_background) { 00205 snprintf(outbuf, maxout, "%c[%d;%d;%dm%s%c[%d;%dm", ESC, attr, fgcolor, bgcolor + 10, inbuf, ESC, COLOR_WHITE, COLOR_BLACK + 10); 00206 } else { 00207 snprintf(outbuf, maxout, "%c[%d;%dm%s%c[0m", ESC, attr, fgcolor, inbuf, ESC); 00208 } 00209 return outbuf; 00210 }
char* term_color_code | ( | char * | outbuf, | |
int | fgcolor, | |||
int | bgcolor, | |||
int | maxout | |||
) |
Write a color sequence to a string.
outbuf | the location to write to | |
fgcolor | foreground color | |
bgcolor | background color | |
maxout | maximum number of characters to write |
Definition at line 258 of file term.c.
References ast_opt_force_black_background, check_bgcolor(), check_colors_allowed(), check_fgcolor(), COLOR_BLACK, and ESC.
Referenced by cli_prompt().
00259 { 00260 int attr = 0; 00261 00262 if (!check_colors_allowed(fgcolor)) { 00263 *outbuf = '\0'; 00264 return outbuf; 00265 } 00266 00267 check_fgcolor(&fgcolor, &attr); 00268 check_bgcolor(&bgcolor); 00269 00270 if (ast_opt_force_black_background) { 00271 snprintf(outbuf, maxout, "%c[%d;%d;%dm", ESC, attr, fgcolor, COLOR_BLACK + 10); 00272 } else if (bgcolor) { 00273 snprintf(outbuf, maxout, "%c[%d;%d;%dm", ESC, attr, fgcolor, bgcolor + 10); 00274 } else { 00275 snprintf(outbuf, maxout, "%c[%d;%dm", ESC, attr, fgcolor); 00276 } 00277 00278 return outbuf; 00279 }
char* term_end | ( | void | ) |
Definition at line 359 of file term.c.
Referenced by ast_xmldoc_printable(), consolehandler(), and main().
00360 { 00361 return enddata; 00362 }
void term_filter_escapes | ( | char * | line | ) |
Definition at line 332 of file term.c.
Referenced by ast_log().
00333 { 00334 int i; 00335 int len = strlen(line); 00336 00337 for (i = 0; i < len; i++) { 00338 if (line[i] != ESC) 00339 continue; 00340 if ((i < (len - 2)) && 00341 (line[i + 1] == 0x5B)) { 00342 switch (line[i + 2]) { 00343 case 0x30: 00344 case 0x31: 00345 case 0x33: 00346 continue; 00347 } 00348 } 00349 /* replace ESC with a space */ 00350 line[i] = ' '; 00351 } 00352 }
char* term_prep | ( | void | ) |
char* term_prompt | ( | char * | outbuf, | |
const char * | inbuf, | |||
int | maxout | |||
) |
Definition at line 303 of file term.c.
References ast_copy_string(), ast_opt_force_black_background, ast_opt_light_background, ATTR_BRIGHT, COLOR_BLACK, COLOR_BLUE, COLOR_WHITE, and ESC.
00304 { 00305 if (!vt100compat) { 00306 ast_copy_string(outbuf, inbuf, maxout); 00307 return outbuf; 00308 } 00309 if (ast_opt_force_black_background) { 00310 snprintf(outbuf, maxout, "%c[%d;%dm%c%c[%d;%dm%s", 00311 ESC, COLOR_BLUE, COLOR_BLACK + 10, 00312 inbuf[0], 00313 ESC, COLOR_WHITE, COLOR_BLACK + 10, 00314 inbuf + 1); 00315 } else if (ast_opt_light_background) { 00316 snprintf(outbuf, maxout, "%c[%d;0m%c%c[%d;0m%s", 00317 ESC, COLOR_BLUE, 00318 inbuf[0], 00319 ESC, COLOR_BLACK, 00320 inbuf + 1); 00321 } else { 00322 snprintf(outbuf, maxout, "%c[%d;%d;0m%c%c[%d;%d;0m%s", 00323 ESC, ATTR_BRIGHT, COLOR_BLUE, 00324 inbuf[0], 00325 ESC, 0, COLOR_WHITE, 00326 inbuf + 1); 00327 } 00328 return outbuf; 00329 }
char* term_quit | ( | void | ) |
Definition at line 364 of file term.c.
Referenced by ast_el_read_char(), main(), and quit_handler().
00365 { 00366 return quitdata; 00367 }
char* term_strip | ( | char * | outbuf, | |
const char * | inbuf, | |||
int | maxout | |||
) |
Definition at line 281 of file term.c.
References ESC.
Referenced by action_command(), ast_log_vsyslog(), and logger_print_normal().
00282 { 00283 char *outbuf_ptr = outbuf; 00284 const char *inbuf_ptr = inbuf; 00285 00286 while (outbuf_ptr < outbuf + maxout) { 00287 switch (*inbuf_ptr) { 00288 case ESC: 00289 while (*inbuf_ptr && (*inbuf_ptr != 'm')) 00290 inbuf_ptr++; 00291 break; 00292 default: 00293 *outbuf_ptr = *inbuf_ptr; 00294 outbuf_ptr++; 00295 } 00296 if (! *inbuf_ptr) 00297 break; 00298 inbuf_ptr++; 00299 } 00300 return outbuf; 00301 }
int vt100compat [static] |