1 | /* |
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2 | * Copyright 2001 Massachusetts Institute of Technology |
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3 | * |
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4 | * Permission to use, copy, modify, and distribute this software and |
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5 | * its documentation for any purpose and without fee is hereby |
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6 | * granted, provided that the above copyright notice and this |
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7 | * permission notice appear in all copies and in supporting |
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8 | * documentation. No representation is made about the suitability of |
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9 | * this software for any purpose. It is provided "as is" without |
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10 | * express or implied warranty. |
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11 | */ |
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12 | |
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13 | #include <stdio.h> |
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14 | #include <unistd.h> |
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15 | #include <stdlib.h> |
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16 | #include <string.h> |
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17 | #include <signal.h> |
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18 | #include <time.h> |
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19 | #include <sys/param.h> |
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20 | #include <sys/types.h> |
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21 | #include <sys/stat.h> |
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22 | #include "owl.h" |
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23 | |
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24 | #if OWL_STDERR_REDIR |
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25 | #ifdef HAVE_SYS_IOCTL_H |
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26 | #include <sys/ioctl.h> |
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27 | #endif |
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28 | #ifdef HAVE_SYS_FILIO_H |
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29 | #include <sys/filio.h> |
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30 | #endif |
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31 | int stderr_replace(void); |
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32 | void stderr_redirect(int rfd); |
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33 | #endif |
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34 | |
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35 | static const char fileIdent[] = "$Id$"; |
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36 | |
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37 | owl_global g; |
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38 | |
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39 | int main(int argc, char **argv, char **env) { |
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40 | WINDOW *recwin, *sepwin, *typwin, *msgwin; |
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41 | owl_editwin *tw; |
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42 | owl_popwin *pw; |
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43 | int j, ret, initialsubs, debug, argcsave, followlast; |
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44 | int newmsgs, zpendcount, nexttimediff; |
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45 | struct sigaction sigact; |
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46 | char *configfile, *tty, *perlout, *perlerr, **argvsave, buff[LINE], startupmsg[LINE]; |
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47 | owl_filter *f; |
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48 | owl_style *s; |
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49 | time_t nexttime, now; |
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50 | struct tm *today; |
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51 | char *dir; |
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52 | #ifdef HAVE_LIBZEPHYR |
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53 | ZNotice_t notice; |
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54 | #endif |
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55 | #if OWL_STDERR_REDIR |
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56 | int newstderr; |
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57 | #endif |
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58 | |
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59 | owl_function_debugmsg("startup: it's the very best place to start"); |
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60 | |
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61 | owl_function_debugmsg("startup: processing command line arguments"); |
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62 | argcsave=argc; |
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63 | argvsave=argv; |
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64 | configfile=NULL; |
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65 | tty=NULL; |
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66 | debug=0; |
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67 | initialsubs=1; |
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68 | if (argc>0) { |
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69 | argv++; |
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70 | argc--; |
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71 | } |
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72 | while (argc>0) { |
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73 | if (!strcmp(argv[0], "-n")) { |
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74 | initialsubs=0; |
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75 | argv++; |
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76 | argc--; |
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77 | } else if (!strcmp(argv[0], "-c")) { |
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78 | if (argc<2) { |
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79 | fprintf(stderr, "Too few arguments to -c\n"); |
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80 | usage(); |
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81 | exit(1); |
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82 | } |
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83 | configfile=argv[1]; |
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84 | argv+=2; |
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85 | argc-=2; |
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86 | } else if (!strcmp(argv[0], "-t")) { |
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87 | if (argc<2) { |
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88 | fprintf(stderr, "Too few arguments to -t\n"); |
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89 | usage(); |
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90 | exit(1); |
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91 | } |
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92 | tty=argv[1]; |
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93 | argv+=2; |
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94 | argc-=2; |
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95 | } else if (!strcmp(argv[0], "-d")) { |
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96 | debug=1; |
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97 | argv++; |
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98 | argc--; |
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99 | } else if (!strcmp(argv[0], "-v")) { |
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100 | printf("This is owl version %s\n", OWL_VERSION_STRING); |
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101 | exit(0); |
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102 | } else { |
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103 | fprintf(stderr, "Uknown argument\n"); |
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104 | usage(); |
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105 | exit(1); |
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106 | } |
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107 | } |
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108 | |
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109 | #ifdef HAVE_LIBZEPHYR |
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110 | /* zephyr init */ |
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111 | owl_function_debugmsg("startup: initializing zephyr"); |
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112 | ret=owl_zephyr_initialize(); |
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113 | if (ret) { |
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114 | exit(1); |
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115 | } |
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116 | #endif |
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117 | |
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118 | /* signal handler */ |
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119 | owl_function_debugmsg("startup: setting up signal handler"); |
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120 | /*sigact.sa_handler=sig_handler;*/ |
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121 | sigact.sa_sigaction=sig_handler; |
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122 | sigemptyset(&sigact.sa_mask); |
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123 | sigact.sa_flags=SA_SIGINFO; |
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124 | sigaction(SIGWINCH, &sigact, NULL); |
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125 | sigaction(SIGALRM, &sigact, NULL); |
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126 | sigaction(SIGPIPE, &sigact, NULL); |
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127 | |
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128 | /* screen init */ |
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129 | owl_function_debugmsg("startup: initializing screen"); |
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130 | sprintf(buff, "TERMINFO=%s", TERMINFO); |
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131 | putenv(buff); |
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132 | initscr(); |
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133 | start_color(); |
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134 | #ifdef HAVE_USE_DEFAULT_COLORS |
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135 | use_default_colors(); |
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136 | #endif |
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137 | raw(); |
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138 | noecho(); |
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139 | |
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140 | /* define simple color pairs */ |
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141 | if (has_colors() && COLOR_PAIRS>=8) { |
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142 | init_pair(OWL_COLOR_BLACK, COLOR_BLACK, -1); |
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143 | init_pair(OWL_COLOR_RED, COLOR_RED, -1); |
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144 | init_pair(OWL_COLOR_GREEN, COLOR_GREEN, -1); |
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145 | init_pair(OWL_COLOR_YELLOW, COLOR_YELLOW, -1); |
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146 | init_pair(OWL_COLOR_BLUE, COLOR_BLUE, -1); |
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147 | init_pair(OWL_COLOR_MAGENTA, COLOR_MAGENTA, -1); |
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148 | init_pair(OWL_COLOR_CYAN, COLOR_CYAN, -1); |
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149 | init_pair(OWL_COLOR_WHITE, COLOR_WHITE, -1); |
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150 | } |
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151 | |
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152 | /* owl global init */ |
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153 | owl_function_debugmsg("startup: doing owl global initialization"); |
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154 | owl_global_init(&g); |
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155 | if (debug) owl_global_set_debug_on(&g); |
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156 | owl_global_set_startupargs(&g, argcsave, argvsave); |
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157 | #ifdef HAVE_LIBZEPHYR |
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158 | owl_global_set_havezephyr(&g); |
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159 | #endif |
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160 | owl_global_set_haveaim(&g); |
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161 | |
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162 | #if OWL_STDERR_REDIR |
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163 | /* Do this only after we've started curses up... */ |
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164 | owl_function_debugmsg("startup: doing stderr redirection"); |
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165 | newstderr = stderr_replace(); |
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166 | #endif |
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167 | |
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168 | /* create the owl directory, in case it does not exist */ |
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169 | owl_function_debugmsg("startup: creating owl directory, if not present"); |
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170 | dir=owl_sprintf("%s/%s", owl_global_get_homedir(&g), OWL_CONFIG_DIR); |
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171 | mkdir(dir, S_IRWXU); |
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172 | owl_free(dir); |
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173 | |
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174 | /* set the tty, either from the command line, or by figuring it out */ |
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175 | owl_function_debugmsg("startup: setting tty name"); |
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176 | if (tty) { |
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177 | owl_global_set_tty(&g, tty); |
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178 | } else { |
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179 | owl_global_set_tty(&g, owl_util_get_default_tty()); |
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180 | } |
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181 | |
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182 | /* setup the built-in styles */ |
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183 | owl_function_debugmsg("startup: creating built-in styles"); |
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184 | s=owl_malloc(sizeof(owl_style)); |
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185 | owl_style_create_internal(s, "default", &owl_stylefunc_default, |
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186 | "Default message formatting"); |
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187 | owl_global_add_style(&g, s); |
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188 | |
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189 | s=owl_malloc(sizeof(owl_style)); |
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190 | owl_style_create_internal(s, "basic", &owl_stylefunc_basic, |
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191 | "Basic message formatting."); |
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192 | owl_global_add_style(&g, s); |
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193 | #if 0 |
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194 | s=owl_malloc(sizeof(owl_style)); |
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195 | owl_style_create_internal(s, "vt", &owl_stylefunc_vt, |
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196 | "VT message formatting."); |
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197 | owl_global_add_style(&g, s); |
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198 | #endif |
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199 | s=owl_malloc(sizeof(owl_style)); |
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200 | owl_style_create_internal(s, "oneline", &owl_stylefunc_oneline, |
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201 | "Formats for one-line-per-message"); |
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202 | owl_global_add_style(&g, s); |
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203 | |
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204 | /* setup the default filters */ |
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205 | /* the personal filter will need to change again when AIM chat's are |
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206 | * included. Also, there should be an %aimme% */ |
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207 | owl_function_debugmsg("startup: creating default filters"); |
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208 | f=owl_malloc(sizeof(owl_filter)); |
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209 | owl_filter_init_fromstring(f, "personal", "( type ^zephyr$ " |
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210 | "and class ^message$ and instance ^personal$ " |
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211 | "and ( recipient ^%me%$ or sender ^%me%$ ) ) " |
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212 | "or ( type ^aim$ and login ^none$ )"); |
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213 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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214 | |
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215 | f=owl_malloc(sizeof(owl_filter)); |
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216 | owl_filter_init_fromstring(f, "trash", "class ^mail$ or opcode ^ping$ or type ^admin$ or ( not login ^none$ )"); |
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217 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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218 | |
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219 | f=owl_malloc(sizeof(owl_filter)); |
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220 | owl_filter_init_fromstring(f, "ping", "opcode ^ping$"); |
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221 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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222 | |
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223 | f=owl_malloc(sizeof(owl_filter)); |
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224 | owl_filter_init_fromstring(f, "auto", "opcode ^auto$"); |
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225 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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226 | |
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227 | f=owl_malloc(sizeof(owl_filter)); |
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228 | owl_filter_init_fromstring(f, "login", "not login ^none$"); |
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229 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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230 | |
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231 | f=owl_malloc(sizeof(owl_filter)); |
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232 | owl_filter_init_fromstring(f, "reply-lockout", "class ^noc or class ^mail$"); |
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233 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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234 | |
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235 | f=owl_malloc(sizeof(owl_filter)); |
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236 | owl_filter_init_fromstring(f, "out", "direction ^out$"); |
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237 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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238 | |
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239 | f=owl_malloc(sizeof(owl_filter)); |
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240 | owl_filter_init_fromstring(f, "aim", "type ^aim$"); |
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241 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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242 | |
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243 | f=owl_malloc(sizeof(owl_filter)); |
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244 | owl_filter_init_fromstring(f, "zephyr", "type ^zephyr$"); |
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245 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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246 | |
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247 | f=owl_malloc(sizeof(owl_filter)); |
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248 | owl_filter_init_fromstring(f, "none", "false"); |
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249 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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250 | |
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251 | f=owl_malloc(sizeof(owl_filter)); |
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252 | owl_filter_init_fromstring(f, "all", "true"); |
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253 | owl_list_append_element(owl_global_get_filterlist(&g), f); |
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254 | |
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255 | /* set the current view */ |
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256 | owl_function_debugmsg("startup: setting the current view"); |
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257 | owl_view_create(owl_global_get_current_view(&g), "main", f, owl_global_get_style_by_name(&g, "default")); |
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258 | |
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259 | /* AIM init */ |
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260 | owl_function_debugmsg("startup: doing AIM initialization"); |
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261 | owl_aim_init(); |
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262 | |
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263 | /* process the startup file */ |
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264 | owl_function_debugmsg("startup: processing startup file"); |
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265 | owl_function_source(NULL); |
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266 | |
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267 | /* read the config file */ |
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268 | owl_function_debugmsg("startup: processing config file"); |
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269 | owl_context_set_readconfig(owl_global_get_context(&g)); |
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270 | perlerr=owl_perlconfig_readconfig(configfile); |
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271 | if (perlerr) { |
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272 | endwin(); |
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273 | fprintf(stderr, "\nError parsing configfile: %s\n", perlerr); |
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274 | exit(1); |
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275 | } |
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276 | |
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277 | /* if the config defines a formatting function, add 'perl' as a style */ |
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278 | if (owl_global_is_config_format(&g)) { |
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279 | owl_function_debugmsg("Found perl formatting"); |
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280 | s=owl_malloc(sizeof(owl_style)); |
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281 | owl_style_create_perl(s, "perl", "owl::_format_msg_legacy_wrap", |
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282 | "User-defined perl style that calls owl::format_msg" |
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283 | "with legacy global variable support"); |
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284 | owl_global_add_style(&g, s); |
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285 | owl_global_set_default_style(&g, "perl"); |
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286 | } |
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287 | |
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288 | /* execute the startup function in the configfile */ |
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289 | owl_function_debugmsg("startup: executing perl startup, if applicable"); |
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290 | perlout = owl_perlconfig_execute("owl::startup();"); |
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291 | if (perlout) owl_free(perlout); |
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292 | |
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293 | /* hold on to the window names for convenience */ |
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294 | msgwin=owl_global_get_curs_msgwin(&g); |
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295 | recwin=owl_global_get_curs_recwin(&g); |
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296 | sepwin=owl_global_get_curs_sepwin(&g); |
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297 | typwin=owl_global_get_curs_typwin(&g); |
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298 | tw=owl_global_get_typwin(&g); |
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299 | |
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300 | /* welcome message */ |
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301 | owl_function_debugmsg("startup: creating splash message"); |
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302 | strcpy(startupmsg, "-----------------------------------------------------------------------\n"); |
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303 | sprintf(buff, "Welcome to Owl version %s. Press 'h' for on-line help. \n", OWL_VERSION_STRING); |
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304 | strcat(startupmsg, buff); |
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305 | strcat(startupmsg, " \n"); |
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306 | strcat(startupmsg, "If you would like to receive release announcements about Owl you can \n"); |
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307 | strcat(startupmsg, "join the owl-users@mit.edu mailing at http://web.mit.edu/ktools/ \n"); |
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308 | strcat(startupmsg, " ^ ^ \n"); |
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309 | strcat(startupmsg, " OvO \n"); |
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310 | strcat(startupmsg, "Please report any bugs or suggestions to bug-owl@mit.edu ( ) \n"); |
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311 | strcat(startupmsg, "-----------------------------------------------------------------m-m---\n"); |
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312 | owl_function_adminmsg("", startupmsg); |
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313 | sepbar(NULL); |
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314 | |
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315 | wrefresh(sepwin); |
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316 | |
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317 | /* load zephyr subs */ |
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318 | if (initialsubs) { |
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319 | owl_function_debugmsg("startup: loading initial zephyr subs"); |
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320 | /* load normal subscriptions */ |
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321 | ret=owl_zephyr_loadsubs(NULL); |
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322 | if (ret==-1) { |
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323 | owl_function_adminmsg("", "Error loading zephyr subscriptions, file inaccessable"); |
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324 | } else if (ret!=0) { |
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325 | owl_function_adminmsg("", "Error loading zephyr subscriptions"); |
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326 | } |
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327 | |
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328 | if (ret!=-1) { |
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329 | owl_global_add_userclue(&g, OWL_USERCLUE_CLASSES); |
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330 | } |
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331 | |
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332 | /* load login subscriptions */ |
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333 | if (owl_global_is_loginsubs(&g)) { |
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334 | owl_function_debugmsg("startup: loading login subs"); |
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335 | owl_function_loadloginsubs(NULL); |
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336 | } |
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337 | } |
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338 | |
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339 | /* set the startup and default style, based on userclue and presence of a |
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340 | * formatting function */ |
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341 | owl_function_debugmsg("startup: setting startup and default style"); |
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342 | if (0 != strcmp(owl_global_get_default_style(&g), "__unspecified__")) { |
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343 | /* the style was set by the user: leave it alone */ |
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344 | } else if (owl_global_is_config_format(&g)) { |
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345 | owl_global_set_default_style(&g, "perl"); |
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346 | } else if (owl_global_is_userclue(&g, OWL_USERCLUE_CLASSES)) { |
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347 | owl_global_set_default_style(&g, "default"); |
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348 | } else { |
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349 | owl_global_set_default_style(&g, "basic"); |
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350 | } |
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351 | |
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352 | /* zlog in if we need to */ |
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353 | if (owl_global_is_startuplogin(&g)) { |
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354 | owl_function_debugmsg("startup: doing zlog in"); |
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355 | owl_zephyr_zlog_in(); |
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356 | } |
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357 | |
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358 | owl_function_debugmsg("startup: set style for the view"); |
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359 | owl_view_set_style(owl_global_get_current_view(&g), |
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360 | owl_global_get_style_by_name(&g, owl_global_get_default_style(&g))); |
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361 | |
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362 | owl_function_debugmsg("startup: setting context interactive"); |
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363 | owl_context_set_interactive(owl_global_get_context(&g)); |
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364 | |
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365 | nexttimediff=10; |
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366 | nexttime=time(NULL); |
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367 | |
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368 | owl_function_debugmsg("startup: entering main loop"); |
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369 | /* main loop */ |
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370 | while (1) { |
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371 | |
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372 | /* if a resize has been scheduled, deal with it */ |
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373 | owl_global_resize(&g, 0, 0); |
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374 | |
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375 | /* these are here in case a resize changes the windows */ |
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376 | msgwin=owl_global_get_curs_msgwin(&g); |
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377 | recwin=owl_global_get_curs_recwin(&g); |
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378 | sepwin=owl_global_get_curs_sepwin(&g); |
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379 | typwin=owl_global_get_curs_typwin(&g); |
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380 | |
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381 | followlast=owl_global_should_followlast(&g); |
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382 | |
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383 | /* Do AIM stuff */ |
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384 | if (owl_global_is_doaimevents(&g)) { |
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385 | owl_aim_process_events(); |
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386 | |
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387 | if (owl_global_is_aimloggedin(&g)) { |
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388 | if (owl_timer_is_expired(owl_global_get_aim_buddyinfo_timer(&g))) { |
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389 | /* owl_buddylist_request_idletimes(owl_global_get_buddylist(&g)); */ |
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390 | owl_timer_reset(owl_global_get_aim_buddyinfo_timer(&g)); |
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391 | } |
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392 | } |
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393 | } |
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394 | |
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395 | /* little hack */ |
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396 | now=time(NULL); |
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397 | today=localtime(&now); |
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398 | if (today->tm_mon==9 && today->tm_mday==31 && owl_global_get_runtime(&g)<600) { |
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399 | if (time(NULL)>nexttime) { |
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400 | if (nexttimediff==1) { |
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401 | nexttimediff=10; |
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402 | } else { |
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403 | nexttimediff=1; |
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404 | } |
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405 | nexttime+=nexttimediff; |
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406 | owl_hack_animate(); |
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407 | } |
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408 | } |
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409 | |
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410 | /* Grab incoming messages. */ |
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411 | newmsgs=0; |
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412 | zpendcount=0; |
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413 | while(owl_zephyr_zpending() || owl_global_messagequeue_pending(&g)) { |
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414 | #ifdef HAVE_LIBZEPHYR |
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415 | struct sockaddr_in from; |
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416 | #endif |
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417 | owl_message *m=NULL; |
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418 | owl_filter *f; |
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419 | |
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420 | /* grab the new message, stick it in 'm' */ |
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421 | if (owl_zephyr_zpending()) { |
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422 | #ifdef HAVE_LIBZEPHYR |
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423 | /* grab a zephyr notice, but if we've done 20 without stopping, |
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424 | take a break to process keystrokes etc. */ |
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425 | if (zpendcount>20) break; |
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426 | ZReceiveNotice(¬ice, &from); |
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427 | zpendcount++; |
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428 | |
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429 | /* is this an ack from a zephyr we sent? */ |
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430 | if (owl_zephyr_notice_is_ack(¬ice)) { |
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431 | owl_zephyr_handle_ack(¬ice); |
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432 | continue; |
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433 | } |
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434 | |
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435 | /* if it's a ping and we're not viewing pings then skip it */ |
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436 | if (!owl_global_is_rxping(&g) && !strcasecmp(notice.z_opcode, "ping")) { |
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437 | continue; |
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438 | } |
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439 | |
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440 | /* create the new message */ |
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441 | m=owl_malloc(sizeof(owl_message)); |
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442 | owl_message_create_from_znotice(m, ¬ice); |
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443 | #endif |
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444 | } else if (owl_global_messagequeue_pending(&g)) { |
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445 | m=owl_global_messageuque_popmsg(&g); |
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446 | } |
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447 | |
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448 | /* if this message it on the puntlist, nuke it and continue */ |
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449 | if (owl_global_message_is_puntable(&g, m)) { |
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450 | owl_message_free(m); |
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451 | continue; |
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452 | } |
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453 | |
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454 | /* otherwise add it to the global list */ |
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455 | owl_messagelist_append_element(owl_global_get_msglist(&g), m); |
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456 | newmsgs=1; |
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457 | |
---|
458 | /* let the config know the new message has been received */ |
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459 | owl_perlconfig_getmsg(m, 0, NULL); |
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460 | |
---|
461 | /* add it to any necessary views; right now there's only the current view */ |
---|
462 | owl_view_consider_message(owl_global_get_current_view(&g), m); |
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463 | |
---|
464 | /* do we need to autoreply? */ |
---|
465 | if (owl_global_is_zaway(&g)) { |
---|
466 | if (owl_message_is_type_zephyr(m)) { |
---|
467 | owl_zephyr_zaway(m); |
---|
468 | } else if (owl_message_is_type_aim(m)) { |
---|
469 | /* can't do this, there's no mechanism not to start a loop */ |
---|
470 | /* owl_aim_send_im(owl_message_get_sender(m), owl_global_get_zaway_msg(&g)); */ |
---|
471 | } |
---|
472 | } |
---|
473 | |
---|
474 | /* ring the bell if it's a personal */ |
---|
475 | if (owl_global_is_personalbell(&g) && |
---|
476 | !owl_message_is_loginout(m) && |
---|
477 | !owl_message_is_mail(m) && |
---|
478 | owl_message_is_private(m)) { |
---|
479 | owl_function_beep(); |
---|
480 | } |
---|
481 | |
---|
482 | /* if it matches the alert filter, do the alert action */ |
---|
483 | f=owl_global_get_filter(&g, owl_global_get_alert_filter(&g)); |
---|
484 | if (f && owl_filter_message_match(f, m)) { |
---|
485 | owl_function_command(owl_global_get_alert_action(&g)); |
---|
486 | } |
---|
487 | |
---|
488 | /* check for burning ears message */ |
---|
489 | /* this is an unsupported feature */ |
---|
490 | if (owl_global_is_burningears(&g) && owl_message_is_burningears(m)) { |
---|
491 | char *buff; |
---|
492 | buff = owl_sprintf("@i(Burning ears message on class %s)", owl_message_get_class(m)); |
---|
493 | owl_function_adminmsg(buff, ""); |
---|
494 | owl_free(buff); |
---|
495 | owl_function_beep(); |
---|
496 | } |
---|
497 | |
---|
498 | /* log the message if we need to */ |
---|
499 | if (owl_global_is_logging(&g) || owl_global_is_classlogging(&g)) { |
---|
500 | owl_log_incoming(m); |
---|
501 | } |
---|
502 | } |
---|
503 | |
---|
504 | /* follow the last message if we're supposed to */ |
---|
505 | if (newmsgs && followlast) { |
---|
506 | owl_function_lastmsg_noredisplay(); |
---|
507 | } |
---|
508 | |
---|
509 | /* do the newmsgproc thing */ |
---|
510 | if (newmsgs) { |
---|
511 | owl_function_do_newmsgproc(); |
---|
512 | } |
---|
513 | |
---|
514 | /* redisplay if necessary */ |
---|
515 | /* this should be optimized to not run if the new messages won't be displayed */ |
---|
516 | if (newmsgs) { |
---|
517 | owl_mainwin_redisplay(owl_global_get_mainwin(&g)); |
---|
518 | sepbar(NULL); |
---|
519 | if (owl_popwin_is_active(owl_global_get_popwin(&g))) { |
---|
520 | owl_popwin_refresh(owl_global_get_popwin(&g)); |
---|
521 | /* TODO: this is a broken kludge */ |
---|
522 | if (owl_global_get_viewwin(&g)) { |
---|
523 | owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0); |
---|
524 | } |
---|
525 | } |
---|
526 | owl_global_set_needrefresh(&g); |
---|
527 | } |
---|
528 | |
---|
529 | /* if a popwin just came up, refresh it */ |
---|
530 | pw=owl_global_get_popwin(&g); |
---|
531 | if (owl_popwin_is_active(pw) && owl_popwin_needs_first_refresh(pw)) { |
---|
532 | owl_popwin_refresh(pw); |
---|
533 | owl_popwin_no_needs_first_refresh(pw); |
---|
534 | owl_global_set_needrefresh(&g); |
---|
535 | /* TODO: this is a broken kludge */ |
---|
536 | if (owl_global_get_viewwin(&g)) { |
---|
537 | owl_viewwin_redisplay(owl_global_get_viewwin(&g), 0); |
---|
538 | } |
---|
539 | } |
---|
540 | |
---|
541 | /* update the terminal if we need to */ |
---|
542 | if (owl_global_is_needrefresh(&g)) { |
---|
543 | /* leave the cursor in the appropriate window */ |
---|
544 | if (owl_global_is_typwin_active(&g)) { |
---|
545 | owl_function_set_cursor(typwin); |
---|
546 | } else { |
---|
547 | owl_function_set_cursor(sepwin); |
---|
548 | } |
---|
549 | doupdate(); |
---|
550 | owl_global_set_noneedrefresh(&g); |
---|
551 | } |
---|
552 | |
---|
553 | /* Handle all keypresses. If no key has been pressed, sleep for a |
---|
554 | * little bit, but otherwise do not. This lets input be grabbed |
---|
555 | * as quickly as possbile */ |
---|
556 | j=wgetch(typwin); |
---|
557 | if (j==ERR) { |
---|
558 | usleep(10); |
---|
559 | } else { |
---|
560 | /* find and activate the current keymap. |
---|
561 | * TODO: this should really get fixed by activating |
---|
562 | * keymaps as we switch between windows... |
---|
563 | */ |
---|
564 | if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) { |
---|
565 | owl_context_set_popless(owl_global_get_context(&g), |
---|
566 | owl_global_get_viewwin(&g)); |
---|
567 | owl_function_activate_keymap("popless"); |
---|
568 | } else if (owl_global_is_typwin_active(&g) |
---|
569 | && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_ONELINE) { |
---|
570 | /* |
---|
571 | owl_context_set_editline(owl_global_get_context(&g), tw); |
---|
572 | owl_function_activate_keymap("editline"); |
---|
573 | */ |
---|
574 | } else if (owl_global_is_typwin_active(&g) |
---|
575 | && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_MULTILINE) { |
---|
576 | owl_context_set_editmulti(owl_global_get_context(&g), tw); |
---|
577 | owl_function_activate_keymap("editmulti"); |
---|
578 | } else { |
---|
579 | owl_context_set_recv(owl_global_get_context(&g)); |
---|
580 | owl_function_activate_keymap("recv"); |
---|
581 | } |
---|
582 | /* now actually handle the keypress */ |
---|
583 | ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j); |
---|
584 | if (ret!=0 && ret!=1) { |
---|
585 | owl_function_makemsg("Unable to handle keypress"); |
---|
586 | } |
---|
587 | } |
---|
588 | |
---|
589 | #if OWL_STDERR_REDIR |
---|
590 | stderr_redirect(newstderr); |
---|
591 | #endif |
---|
592 | |
---|
593 | /* Log any error signals */ |
---|
594 | { |
---|
595 | siginfo_t si; |
---|
596 | int signum; |
---|
597 | if ((signum = owl_global_get_errsignal_and_clear(&g, &si)) > 0) { |
---|
598 | owl_function_error("Got unexpected signal: %d %s (code: %d fd: %d band: %d errno: %d)", |
---|
599 | signum, signum==SIGPIPE?"SIGPIPE":"", |
---|
600 | si.si_code, si.si_fd, si.si_band, si.si_errno); |
---|
601 | } |
---|
602 | } |
---|
603 | |
---|
604 | owl_function_debugmsg("main loop iteration end"); |
---|
605 | |
---|
606 | } |
---|
607 | } |
---|
608 | |
---|
609 | void sig_handler(int sig, siginfo_t *si, void *data) { |
---|
610 | if (sig==SIGWINCH) { |
---|
611 | /* we can't inturrupt a malloc here, so it just sets a flag |
---|
612 | * schedulding a resize for later |
---|
613 | */ |
---|
614 | owl_function_resize(); |
---|
615 | } else if (sig==SIGPIPE) { |
---|
616 | /* Set a flag and some info that we got the sigpipe |
---|
617 | * so we can record that we got it and why... */ |
---|
618 | owl_global_set_errsignal(&g, sig, si); |
---|
619 | } |
---|
620 | |
---|
621 | } |
---|
622 | |
---|
623 | void usage() { |
---|
624 | fprintf(stderr, "Owl version %s\n", OWL_VERSION_STRING); |
---|
625 | fprintf(stderr, "Usage: owl [-n] [-d] [-v] [-h] [-c <configfile>] [-t <ttyname>]\n"); |
---|
626 | fprintf(stderr, " -n don't load zephyr subscriptions\n"); |
---|
627 | fprintf(stderr, " -d enable debugging\n"); |
---|
628 | fprintf(stderr, " -v print the Owl version number and exit\n"); |
---|
629 | fprintf(stderr, " -h print this help message\n"); |
---|
630 | fprintf(stderr, " -c specify an alternate config file\n"); |
---|
631 | fprintf(stderr, " -t set the tty name\n"); |
---|
632 | } |
---|
633 | |
---|
634 | |
---|
635 | |
---|
636 | #if OWL_STDERR_REDIR |
---|
637 | |
---|
638 | /* Replaces stderr with a pipe so that we can read from it. |
---|
639 | * Returns the fd of the pipe from which stderr can be read. */ |
---|
640 | int stderr_replace(void) { |
---|
641 | int pipefds[2]; |
---|
642 | if (0 != pipe(pipefds)) { |
---|
643 | perror("pipe"); |
---|
644 | owl_function_debugmsg("stderr_replace: pipe FAILED\n"); |
---|
645 | return -1; |
---|
646 | } |
---|
647 | owl_function_debugmsg("stderr_replace: pipe: %d,%d\n", pipefds[0], pipefds[1]); |
---|
648 | if (-1 == dup2(pipefds[1], 2 /*stderr*/)) { |
---|
649 | owl_function_debugmsg("stderr_replace: dup2 FAILED (%s)\n", strerror(errno)); |
---|
650 | perror("dup2"); |
---|
651 | return -1; |
---|
652 | } |
---|
653 | return pipefds[0]; |
---|
654 | } |
---|
655 | |
---|
656 | /* Sends stderr (read from rfd) messages to a file */ |
---|
657 | void stderr_redirect(int rfd) { |
---|
658 | int navail, bread; |
---|
659 | char *buf; |
---|
660 | /*owl_function_debugmsg("stderr_redirect: called with rfd=%d\n", rfd);*/ |
---|
661 | if (rfd<0) return; |
---|
662 | if (-1 == ioctl(rfd, FIONREAD, (void*)&navail)) { |
---|
663 | return; |
---|
664 | } |
---|
665 | /*owl_function_debugmsg("stderr_redirect: navail = %d\n", navail);*/ |
---|
666 | if (navail<=0) return; |
---|
667 | if (navail>256) { navail = 256; } |
---|
668 | buf = owl_malloc(navail+1); |
---|
669 | bread = read(rfd, buf, navail); |
---|
670 | if (buf[navail-1] != '\0') { |
---|
671 | buf[navail] = '\0'; |
---|
672 | } |
---|
673 | owl_function_error("Err: %s", buf); |
---|
674 | owl_free(buf); |
---|
675 | } |
---|
676 | |
---|
677 | #endif /* OWL_STDERR_REDIR */ |
---|