1 | /* run -- Wrapper program for console mode programs under Windows(TM) |
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2 | * Copyright (C) 1998 Charles S. Wilson |
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3 | * |
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4 | * This program is free software; you can redistribute it and/or |
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5 | * modify it under the terms of the GNU General Public License |
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6 | * as published by the Free Software Foundation; either version 2 |
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7 | * of the License, or (at your option) any later version. |
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8 | * |
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9 | * This program is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | * GNU General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU General Public License |
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15 | * along with this program; if not, write to the Free Software |
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16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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17 | */ |
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18 | |
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19 | /* |
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20 | * This program is based on the runemacs.c distributed with XEmacs 21.0 |
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21 | * |
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22 | * Simple program to start gnu-win32 X11 programs (and native XEmacs) |
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23 | * with its console window hidden. |
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24 | * |
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25 | * This program is provided purely for convenience, since most users will |
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26 | * use XEmacs in windowing (GUI) mode, and will not want to have an extra |
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27 | * console window lying around. Ditto for desktop shortcuts to gnu-win32 |
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28 | * X11 executables. |
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29 | */ |
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30 | |
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31 | |
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32 | #define WIN32 |
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33 | |
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34 | #include <windows.h> |
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35 | #include <string.h> |
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36 | #include <malloc.h> |
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37 | #include <stdlib.h> |
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38 | #include <stdio.h> |
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39 | #include <stdarg.h> |
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40 | |
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41 | #include <run.h> |
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42 | |
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43 | #if defined(__CYGWIN__) |
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44 | #include <sys/types.h> |
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45 | #include <sys/stat.h> |
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46 | #include <sys/cygwin.h> |
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47 | #include <sys/unistd.h> |
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48 | //WinMainCRTStartup() { mainCRTStartup(); } |
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49 | #else |
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50 | #include <direct.h> |
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51 | #endif |
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52 | |
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53 | |
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54 | char buffer[1024]; |
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55 | |
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56 | int WINAPI |
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57 | WinMain (HINSTANCE hSelf, HINSTANCE hPrev, LPSTR cmdline, int nShow) |
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58 | { |
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59 | int wait_for_child = FALSE; |
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60 | int compact_invocation = FALSE; |
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61 | DWORD ret_code = 0; |
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62 | |
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63 | |
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64 | char execname[FILENAME_MAX]; |
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65 | char execpath[MAX_PATH]; |
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66 | char* argv[MAX_ARGS+1]; /* leave extra slot for compact_invocation argv[0] */ |
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67 | int argc; |
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68 | int i,j; |
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69 | char exec[MAX_PATH + FILENAME_MAX + 100]; |
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70 | char cmdline2[MAX_ARGS * MAX_PATH]; |
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71 | |
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72 | compact_invocation = get_exec_name_and_path(execname,execpath); |
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73 | |
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74 | if (compact_invocation) |
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75 | { |
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76 | argv[0] = execname; |
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77 | argc = parse_cmdline_to_arg_array(&(argv[1]),cmdline); |
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78 | argc++; |
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79 | } |
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80 | else |
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81 | { |
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82 | argc = parse_cmdline_to_arg_array(argv,cmdline); |
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83 | if (argc >= 1) |
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84 | strcpy(execname,argv[0]); |
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85 | } |
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86 | /* at this point, execpath is defined, as are argv[] and execname */ |
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87 | #ifdef DEBUG |
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88 | j = sprintf(buffer,"\nexecname : %s\nexecpath : %s\n",execname,execpath); |
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89 | for (i = 0; i < argc; i++) |
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90 | j += sprintf(buffer+j,"argv[%d]\t: %s\n",i,argv[i]); |
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91 | Trace((buffer)); |
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92 | #endif |
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93 | |
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94 | if (execname == NULL) |
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95 | error("you must supply a program name to run"); |
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96 | |
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97 | #if defined(__CYGWIN__) |
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98 | /* this insures that we search for symlinks before .exe's */ |
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99 | // if (compact_invocation) |
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100 | // strip_exe(execname); |
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101 | #endif |
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102 | |
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103 | process_execname(exec,execname,execpath); |
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104 | Trace(("exec\t%s\nexecname\t%s\nexecpath\t%s\n", |
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105 | exec,execname,execpath)); |
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106 | |
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107 | wait_for_child = build_cmdline(cmdline2,exec,argc,argv); |
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108 | Trace((cmdline2)); |
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109 | |
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110 | xemacs_special(exec); |
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111 | ret_code = start_child(cmdline2,wait_for_child); |
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112 | if (compact_invocation) |
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113 | for (i = 1; i < argc; i++) // argv[0] was not malloc'ed |
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114 | free(argv[i]); |
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115 | else |
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116 | for (i = 0; i < argc; i++) |
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117 | free(argv[i]); |
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118 | return (int) ret_code; |
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119 | } |
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120 | int start_child(char* cmdline, int wait_for_child) |
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121 | { |
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122 | STARTUPINFO start; |
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123 | SECURITY_ATTRIBUTES sec_attrs; |
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124 | SECURITY_DESCRIPTOR sec_desc; |
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125 | PROCESS_INFORMATION child; |
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126 | int retval; |
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127 | |
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128 | memset (&start, 0, sizeof (start)); |
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129 | start.cb = sizeof (start); |
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130 | start.dwFlags = STARTF_USESHOWWINDOW; |
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131 | start.wShowWindow = SW_HIDE; |
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132 | |
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133 | sec_attrs.nLength = sizeof (sec_attrs); |
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134 | sec_attrs.lpSecurityDescriptor = NULL; |
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135 | sec_attrs.bInheritHandle = FALSE; |
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136 | |
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137 | if (CreateProcess (NULL, cmdline, &sec_attrs, NULL, TRUE, 0, |
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138 | NULL, NULL, &start, &child)) |
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139 | { |
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140 | if (wait_for_child) |
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141 | { |
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142 | WaitForSingleObject (child.hProcess, INFINITE); |
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143 | GetExitCodeProcess (child.hProcess, &retval); |
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144 | } |
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145 | CloseHandle (child.hThread); |
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146 | CloseHandle (child.hProcess); |
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147 | } |
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148 | else |
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149 | error("could not start %s",cmdline); |
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150 | return retval; |
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151 | } |
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152 | void xemacs_special(char* exec) |
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153 | { |
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154 | /* |
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155 | * if we're trying to run xemacs, AND this file was in %emacs_dir%\bin, |
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156 | * then set emacs_dir environment variable |
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157 | */ |
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158 | char* p; |
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159 | char* p2; |
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160 | char exec2[MAX_PATH + FILENAME_MAX + 100]; |
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161 | char tmp[MAX_PATH + FILENAME_MAX + 100]; |
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162 | strcpy(exec2,exec); |
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163 | /* this depends on short-circuit evaluation */ |
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164 | if ( ((p = strrchr(exec2,'\\')) && stricmp(p,"\\xemacs") == 0) || |
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165 | ((p = strrchr(exec2,'/')) && stricmp(p,"/xemacs") == 0) || |
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166 | ((p = strrchr(exec2,'\\')) && stricmp(p,"\\xemacs.exe") == 0) || |
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167 | ((p = strrchr(exec2,'/')) && stricmp(p,"/xemacs.exe") == 0) ) |
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168 | { |
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169 | if ( ((p2 = strrchr(p, '\\')) && stricmp(p2, "\\bin") == 0) || |
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170 | ((p2 = strrchr(p, '/')) && stricmp(p2, "/bin") == 0) ) |
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171 | { |
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172 | *p2 = '\0'; |
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173 | #if defined(__CYGWIN__) |
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174 | CYGWIN_CONV_TO_POSIX_PATH((exec2,tmp)); |
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175 | strcpy(exec2,tmp); |
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176 | #else /* NATIVE xemacs DOS-style paths with forward slashes */ |
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177 | for (p = exec2; *p; p++) |
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178 | if (*p == '\\') *p = '/'; |
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179 | #endif |
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180 | SetEnvironmentVariable ("emacs_dir", exec2); |
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181 | } |
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182 | } |
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183 | } |
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184 | int build_cmdline(char* new_cmdline, char* exec, int argc, char* argv[]) |
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185 | { |
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186 | int retval = FALSE; |
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187 | int first_arg = 1; |
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188 | int i; |
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189 | int char_cnt = 0; |
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190 | /* |
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191 | * look for "-wait" as first true argument; we'll apply that ourselves |
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192 | */ |
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193 | if ((argc >= 2) && (stricmp(argv[1],"-wait") == 0)) |
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194 | { |
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195 | retval = TRUE; |
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196 | first_arg++; |
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197 | } |
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198 | |
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199 | char_cnt = strlen(exec); |
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200 | for (i = first_arg; i < argc; i++) |
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201 | char_cnt += strlen(argv[i]); |
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202 | if (char_cnt > MAX_ARGS*MAX_PATH) /* then we ran out of room */ |
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203 | error("command line too long -\n%s",new_cmdline); |
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204 | |
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205 | strcpy(new_cmdline,exec); |
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206 | for (i = first_arg; i < argc; i++) |
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207 | { |
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208 | strcat(new_cmdline," "); |
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209 | strcat(new_cmdline,argv[i]); |
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210 | } |
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211 | return retval; |
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212 | } |
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213 | /* process exec_arg : if it |
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214 | * NATIVE: |
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215 | * 1) starts with '\\' or '/', it's a root-path and leave it alone |
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216 | * 2) starts with 'x:\\' or 'x:/', it's a root-path and leave it alone |
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217 | * 3) starts with '.\\' or './', two possible meanings: |
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218 | * 1) exec is in the current directory |
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219 | * 2) exec in same directory as this program |
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220 | * 4) otherwise, search path (and _prepend_ "." to the path!!!) |
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221 | * 5) convert all '/' to '\\' |
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222 | * CYGWIN |
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223 | * 1) starts with '\\' or '/', it's a root-path and leave it alone |
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224 | * 2) starts with 'x:\\' or 'x:/', it's a root-path and leave it alone |
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225 | * 3) starts with '.\\' or './', two possible meanings: |
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226 | * 1) exec is in the current directory |
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227 | * 2) exec in same directory as this program |
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228 | * 4) otherwise, search path (and _prepend_ "." to the path!!!) |
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229 | * 5) convert to cygwin-style path to resolve symlinks within the pathspec |
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230 | * 6) check filename: if it's a symlink, resolve it by peeking inside |
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231 | * 7) convert to win32-style path+filename since we're using Windows |
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232 | * createProcess() to launch |
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233 | */ |
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234 | void process_execname(char *exec, const char* execname,const char* execpath ) |
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235 | { |
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236 | char* orig_pathlist; |
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237 | char* pathlist; |
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238 | char exec_tmp[MAX_PATH + FILENAME_MAX + 100]; |
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239 | char exec_tmp2[MAX_PATH + FILENAME_MAX + 100]; |
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240 | char buf[MAX_PATH + FILENAME_MAX + 100]; |
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241 | int i,j; |
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242 | |
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243 | int len = 0; |
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244 | /* |
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245 | * STARTS WITH / or \ |
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246 | * execpath NOT used |
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247 | */ |
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248 | if ((execname[0] == '\\') || (execname[0] == '/')) |
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249 | { |
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250 | #if defined(__CYGWIN__) |
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251 | strcpy(exec_tmp,execname); |
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252 | #else |
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253 | exec_tmp[0] = ((char) (_getdrive() + ((int) 'A') - 1)); |
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254 | exec_tmp[1] = ':'; |
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255 | exec_tmp[2] = '\0'; |
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256 | strcat(exec_tmp,execname); |
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257 | #endif |
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258 | Trace(("/ -\nexec_tmp\t%s\nexecname\t%s\nexecpath\t%s\n", |
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259 | exec_tmp,execname,execpath)); |
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260 | if (! fileExistsMulti(exec_tmp2,NULL,exec_tmp,exts,NUM_EXTENSIONS) ) |
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261 | { |
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262 | j = 0; |
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263 | for (i = 0; i < NUM_EXTENSIONS; i++) |
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264 | j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]); |
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265 | error("Couldn't locate %s\nI tried appending the following " |
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266 | "extensions: \n%s",exec_tmp,buf); |
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267 | } |
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268 | Trace((exec_tmp2)); |
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269 | } |
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270 | /* |
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271 | * STARTS WITH x:\ or x:/ |
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272 | * execpath NOT used |
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273 | */ |
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274 | else if ((strlen(execname) > 3) && // avoid boundary errors |
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275 | (execname[1] == ':') && |
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276 | ((execname[2] == '\\') || (execname[2] == '/'))) |
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277 | { |
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278 | strcpy(exec_tmp,execname); |
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279 | Trace(("x: -\nexec_tmp\t%s\nexecname\t%s\nexecpath\t%s\n", |
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280 | exec_tmp,execname,execpath)); |
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281 | if (! fileExistsMulti(exec_tmp2,NULL,exec_tmp,exts,NUM_EXTENSIONS) ) |
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282 | { |
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283 | j = 0; |
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284 | for (i = 0; i < NUM_EXTENSIONS; i++) |
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285 | j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]); |
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286 | error("Couldn't locate %s\nI tried appending the following " |
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287 | "extensions: \n%s",exec_tmp,buf); |
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288 | } |
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289 | Trace((exec_tmp2)); |
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290 | } |
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291 | /* |
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292 | * STARTS WITH ./ or .\ |
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293 | */ |
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294 | else if ((execname[0] == '.') && |
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295 | ((execname[1] == '\\') || (execname[1] == '/'))) |
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296 | { |
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297 | if (((char*) getcwd(exec_tmp,MAX_PATH))==NULL) |
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298 | error("can't find current working directory"); |
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299 | if (! fileExistsMulti(exec_tmp2,exec_tmp,&(execname[2]), |
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300 | exts,NUM_EXTENSIONS) ) |
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301 | if (! fileExistsMulti(exec_tmp2,execpath,&(execname[2]), |
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302 | exts,NUM_EXTENSIONS) ) |
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303 | { |
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304 | j = 0; |
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305 | for (i = 0; i < NUM_EXTENSIONS; i++) |
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306 | j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]); |
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307 | error("Couldn't locate %s\n" |
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308 | "I looked in the following directories:\n [1]: %s\n [2]: %s\n" |
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309 | "I also tried appending the following " |
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310 | "extensions: \n%s",execname,exec_tmp,execpath,buf); |
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311 | } |
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312 | Trace((exec_tmp2)); |
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313 | } |
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314 | /* |
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315 | * OTHERWISE, SEARCH PATH (prepend '.' and run.exe's directory) |
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316 | * can't use fileExistsMulti because we want to search entire path |
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317 | * for exts[0], then for exts[1], etc. |
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318 | */ |
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319 | else |
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320 | { |
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321 | orig_pathlist = getenv("PATH"); |
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322 | if ((pathlist = malloc (strlen(orig_pathlist) |
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323 | + strlen(".") |
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324 | + strlen(execpath)+ 3)) == NULL) |
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325 | error("internal error - out of memory"); |
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326 | strcpy(pathlist,"."); |
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327 | strcat(pathlist,SEP_CHARS); |
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328 | strcat(pathlist,execpath); |
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329 | strcat(pathlist,SEP_CHARS); |
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330 | strcat(pathlist,orig_pathlist); |
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331 | |
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332 | Trace((pathlist)); |
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333 | for (i = 0; i < NUM_EXTENSIONS; i++) |
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334 | { |
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335 | strcpy(exec_tmp,execname); |
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336 | strcat(exec_tmp,exts[i]); |
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337 | pfopen(exec_tmp2,exec_tmp,pathlist); |
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338 | if (fileExists(NULL,NULL,exec_tmp2)) |
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339 | break; |
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340 | exec_tmp2[0] = '\0'; |
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341 | } |
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342 | Trace(("exec_tmp\t%s\npathlist\t%s\n",exec_tmp2,pathlist)); |
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343 | |
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344 | free(pathlist); |
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345 | if (exec_tmp2[0] == '\0') |
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346 | { |
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347 | j = 0; |
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348 | for (i = 0; i < NUM_EXTENSIONS; i++) |
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349 | j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]); |
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350 | error("Couldn't find %s anywhere.\n" |
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351 | "I even looked in the PATH \n" |
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352 | "I also tried appending the following " |
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353 | "extensions: \n%s",execname,buf); |
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354 | } |
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355 | } |
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356 | /* |
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357 | * At this point, we know that exec_tmp2 contains a filename |
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358 | * and we know that exec_tmp2 exists. |
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359 | */ |
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360 | #if defined(__CYGWIN__) |
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361 | { |
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362 | struct stat stbuf; |
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363 | char sym_link_name[MAX_PATH+1]; |
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364 | char real_name[MAX_PATH+1]; |
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365 | char dummy[MAX_PATH+1]; |
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366 | |
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367 | strcpy(exec_tmp,exec_tmp2); |
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368 | |
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369 | CYGWIN_CONV_TO_POSIX_PATH((exec_tmp,sym_link_name)); |
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370 | Trace((sym_link_name)); |
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371 | |
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372 | if (lstat(sym_link_name, &stbuf) == 0) |
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373 | { |
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374 | if ((stbuf.st_mode & S_IFLNK) == S_IFLNK) |
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375 | { |
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376 | if (readlink(sym_link_name, real_name, sizeof(real_name)) == -1) |
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377 | error("problem reading symbolic link for %s",exec_tmp); |
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378 | else |
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379 | { |
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380 | // if realname starts with '/' it's a rootpath |
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381 | if (real_name[0] == '/') |
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382 | strcpy(exec_tmp2,real_name); |
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383 | else // otherwise, it's relative to the symlink's location |
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384 | { |
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385 | CYGWIN_SPLIT_PATH((sym_link_name,exec_tmp2,dummy)); |
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386 | if (!endsWith(exec_tmp2,PATH_SEP_CHAR_STR)) |
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387 | strcat(exec_tmp2,PATH_SEP_CHAR_STR); |
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388 | strcat(exec_tmp2,real_name); |
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389 | } |
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390 | } |
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391 | } |
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392 | else /* NOT a symlink */ |
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393 | strcpy(exec_tmp2, sym_link_name); |
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394 | } |
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395 | else |
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396 | error("can't locate executable - %s",sym_link_name); |
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397 | } |
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398 | CYGWIN_CONV_TO_FULL_WIN32_PATH((exec_tmp2,exec)); |
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399 | #else |
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400 | strcpy (exec, exec_tmp2); |
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401 | #endif |
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402 | } |
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403 | int endsWith(const char* s1, const char* s2) |
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404 | { |
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405 | int len1; |
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406 | int len2; |
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407 | int retval = FALSE; |
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408 | len1 = strlen(s1); |
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409 | len2 = strlen(s2); |
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410 | if (len1 - len2 >= 0) |
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411 | if (stricmp(&(s1[len1-len2]),s2) == 0) |
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412 | retval = TRUE; |
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413 | return retval; |
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414 | }void strip_exe(char* s) |
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415 | { |
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416 | if ((strlen(s) > 4) && // long enough to have .exe extension |
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417 | // second part not evaluated (short circuit) if exec_arg too short |
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418 | (stricmp(&(s[strlen(s)-4]),".exe") == 0)) |
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419 | s[strlen(s)-4] = '\0'; |
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420 | } |
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421 | void error(char* fmt, ...) |
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422 | { |
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423 | char buf[4096]; |
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424 | int j; |
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425 | va_list args; |
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426 | va_start(args, fmt); |
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427 | j = sprintf(buf, "Error: "); |
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428 | j += vsprintf(buf + j,fmt,args); |
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429 | j += sprintf(buf + j,"\n"); |
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430 | va_end(args); |
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431 | MessageBox(NULL, buf, "Run.exe", MB_ICONSTOP); |
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432 | exit(1); |
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433 | } |
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434 | void message(char* fmt, ...) |
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435 | { |
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436 | char buf[10000]; |
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437 | int j; |
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438 | va_list args; |
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439 | va_start(args, fmt); |
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440 | j = vsprintf(buf,fmt,args); |
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441 | j += sprintf(buf + j,"\n"); |
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442 | va_end(args); |
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443 | MessageBox(NULL, buf, "Run.exe Message", MB_ICONSTOP); |
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444 | } |
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445 | void Trace_(char* fmt, ...) |
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446 | { |
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447 | char buf[10000]; |
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448 | int j; |
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449 | va_list args; |
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450 | va_start(args, fmt); |
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451 | j = vsprintf(buf,fmt,args); |
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452 | j += sprintf(buf + j,"\n"); |
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453 | va_end(args); |
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454 | MessageBox(NULL, buf, "Run.exe DEBUG", MB_ICONSTOP); |
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455 | } |
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456 | /* |
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457 | * Uses system info to determine the path used to invoke run |
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458 | * Also attempts to deduce the target execname if "compact_invocation" |
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459 | * method was used. |
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460 | * |
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461 | * returns TRUE if compact_invocation method was used |
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462 | * (and target execname was deduced successfully) |
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463 | * otherwise returns FALSE, and execname == run or run.exe |
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464 | */ |
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465 | int get_exec_name_and_path(char* execname, char* execpath) |
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466 | { |
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467 | char modname[MAX_PATH]; |
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468 | char* tmp_execname; |
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469 | char* p; |
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470 | int retval = FALSE; |
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471 | |
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472 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) |
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473 | error("internal error - can't find my own name"); |
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474 | if ((p = strrchr (modname, '\\')) == NULL) |
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475 | error("internal error - my own name has no path\n%s",modname); |
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476 | tmp_execname = p + 1; |
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477 | p[0] = '\0'; |
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478 | // if invoked by a name like "runxemacs" then strip off |
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479 | // the "run" and let "xemacs" be execname. |
---|
480 | // To check for this, make that: |
---|
481 | // 1) first three chars are "run" |
---|
482 | // 2) but the string doesn't end there, or start ".exe" |
---|
483 | // Also, set "compact_invocation" TRUE |
---|
484 | if ( ((tmp_execname[0] == 'r') || (tmp_execname[0] == 'R')) && |
---|
485 | ((tmp_execname[1] == 'u') || (tmp_execname[1] == 'U')) && |
---|
486 | ((tmp_execname[2] == 'n') || (tmp_execname[2] == 'N')) && |
---|
487 | ((tmp_execname[3] != '.') && (tmp_execname[3] != '\0')) ) |
---|
488 | { |
---|
489 | tmp_execname += 3; |
---|
490 | retval = TRUE; |
---|
491 | } |
---|
492 | else |
---|
493 | tmp_execname = NULL; |
---|
494 | |
---|
495 | if (tmp_execname == NULL) |
---|
496 | strcpy(execname,""); |
---|
497 | else |
---|
498 | strcpy(execname,tmp_execname); |
---|
499 | #if defined(__CYGWIN__) |
---|
500 | CYGWIN_CONV_TO_POSIX_PATH((modname,execpath)); |
---|
501 | #else |
---|
502 | strcpy(execpath,modname); |
---|
503 | #endif |
---|
504 | return retval; |
---|
505 | } |
---|
506 | /* |
---|
507 | * works like strtok, but: |
---|
508 | * double quotes (") suspends tokenizing until closing " reached |
---|
509 | * CYGWIN ONLY: |
---|
510 | * additionally, backslash escapes next character, even if that |
---|
511 | * next character is a delimiter. Or a double quote. |
---|
512 | * WARNING: this means that backslash may NOT be a delimiter |
---|
513 | */ |
---|
514 | char* my_strtok(char* s, const char* delim, char** lasts) |
---|
515 | { |
---|
516 | char *spanp; |
---|
517 | int c, sc; |
---|
518 | char *tok; |
---|
519 | |
---|
520 | if ((s == NULL) && ((s = *lasts) == NULL)) |
---|
521 | return NULL; |
---|
522 | /* Skip leading delimiters */ |
---|
523 | cont: |
---|
524 | c = *s++; |
---|
525 | for (spanp = (char *)delim; (sc = *spanp++) != 0;) { |
---|
526 | if (c == sc) |
---|
527 | goto cont; |
---|
528 | } |
---|
529 | if (c == 0) { /* no non-delimiter characters */ |
---|
530 | *lasts = NULL; |
---|
531 | return (NULL); |
---|
532 | } |
---|
533 | tok = s - 1; |
---|
534 | /* |
---|
535 | * Scan token (scan for delimiters: s += strcspn(s, delim), sort of). |
---|
536 | * Note that delim must have one NUL; we stop if we see that, too. |
---|
537 | * If we see a double quote, continue until next double quote, then |
---|
538 | * start scanning for delimiters again. |
---|
539 | * CYGWIN ONLY: if we see a backslash, just copy next character - |
---|
540 | * don't consider it as a delimiter even if it is in delim string. |
---|
541 | */ |
---|
542 | for (;;) { |
---|
543 | /* if this c is ", then scan until we find next " */ |
---|
544 | if (c == '\"') |
---|
545 | while ((c = *s++) != '\"') |
---|
546 | if (c == 0) /* oops, forgot to close the ", clean up & return */ |
---|
547 | { |
---|
548 | s = NULL; |
---|
549 | *lasts = s; |
---|
550 | return (tok); |
---|
551 | } |
---|
552 | #if defined(__CYGWIN__) |
---|
553 | if (c == '\\') |
---|
554 | { |
---|
555 | c = *s++; /* skip the backslash */ |
---|
556 | if (c == 0) /* if escaped character is end-of-string, clean up & return */ |
---|
557 | { |
---|
558 | s = NULL; |
---|
559 | *lasts = s; |
---|
560 | return (tok); |
---|
561 | } |
---|
562 | c = *s++; /* otherwise, skip the escaped character */ |
---|
563 | } |
---|
564 | #endif |
---|
565 | spanp = (char *)delim; |
---|
566 | do { |
---|
567 | if ((sc = *spanp++) == c) { |
---|
568 | if (c == 0) |
---|
569 | s = NULL; |
---|
570 | else |
---|
571 | s[-1] = 0; |
---|
572 | *lasts = s; |
---|
573 | return (tok); |
---|
574 | } |
---|
575 | } while (sc != 0); |
---|
576 | c = *s++; |
---|
577 | } |
---|
578 | /* NOTREACHED */ |
---|
579 | } |
---|
580 | int parse_cmdline_to_arg_array(char* argv[MAX_ARGS], char* cmdline) |
---|
581 | { |
---|
582 | char seps[] = " \t\n"; |
---|
583 | char* token; |
---|
584 | int argc = 0; |
---|
585 | char* lasts; |
---|
586 | |
---|
587 | token = my_strtok(cmdline, seps, &lasts); |
---|
588 | while ((token != NULL) && (argc < MAX_ARGS)) |
---|
589 | { |
---|
590 | if ((argv[argc] = malloc(strlen(token)+1)) == NULL) |
---|
591 | { |
---|
592 | error("internal error - out of memory"); |
---|
593 | } |
---|
594 | strcpy(argv[argc++],token); |
---|
595 | token = my_strtok(NULL,seps,&lasts); |
---|
596 | } |
---|
597 | if (argc >= MAX_ARGS) |
---|
598 | error("too many arguments on commandline\n%s",cmdline); |
---|
599 | return argc; |
---|
600 | } |
---|
601 | /* Taken from pfopen.c by David Engel (5-Jul-97). |
---|
602 | * Original comments appear below. Superseded by next comment block. |
---|
603 | * |
---|
604 | * Written and released to the public domain by David Engel. |
---|
605 | * |
---|
606 | * This function attempts to open a file which may be in any of |
---|
607 | * several directories. It is particularly useful for opening |
---|
608 | * configuration files. For example, PROG.EXE can easily open |
---|
609 | * PROG.CFG (which is kept in the same directory) by executing: |
---|
610 | * |
---|
611 | * cfg_file = pfopen("PROG.CFG", "r", getenv("PATH")); |
---|
612 | * |
---|
613 | * NULL is returned if the file can't be opened. |
---|
614 | */ |
---|
615 | |
---|
616 | /* |
---|
617 | * This function attempts to locate a file which may be in any of |
---|
618 | * several directories. Unlike the original pfopen, it does not |
---|
619 | * return a FILE pointer to the opened file, but rather returns |
---|
620 | * the fully-qualified filename of the first match found. Returns |
---|
621 | * empty string if not found. |
---|
622 | */ |
---|
623 | char *pfopen(char *retval, const char *name, const char *dirs) |
---|
624 | { |
---|
625 | char *ptr; |
---|
626 | char *tdirs; |
---|
627 | char returnval[MAX_PATH + FILENAME_MAX + 100]; |
---|
628 | char *recursive_name; |
---|
629 | int foundit = FALSE; |
---|
630 | |
---|
631 | returnval[0] = '\0'; |
---|
632 | |
---|
633 | if (dirs == NULL || dirs[0] == '\0') |
---|
634 | return NULL; |
---|
635 | |
---|
636 | if ((tdirs = malloc(strlen(dirs)+1)) == NULL) |
---|
637 | return NULL; |
---|
638 | |
---|
639 | strcpy(tdirs, dirs); |
---|
640 | |
---|
641 | for (ptr = strtok(tdirs, SEP_CHARS); (foundit == FALSE) && ptr != NULL; |
---|
642 | ptr = strtok(NULL, SEP_CHARS)) |
---|
643 | { |
---|
644 | foundit = fileExists(returnval,ptr,name); |
---|
645 | } |
---|
646 | |
---|
647 | free(tdirs); |
---|
648 | if (!foundit) |
---|
649 | retval[0] = '\0'; |
---|
650 | else |
---|
651 | strcpy(retval,returnval); |
---|
652 | return retval; |
---|
653 | } |
---|
654 | int fileExistsMulti(char* fullname, const char* path, |
---|
655 | const char* name_noext, const char* exts[], |
---|
656 | const int extcnt) |
---|
657 | { |
---|
658 | char tryName[MAX_PATH + FILENAME_MAX]; |
---|
659 | int i = 0; |
---|
660 | int retval = FALSE; |
---|
661 | fullname[0] = '\0'; |
---|
662 | for (i = 0; i < extcnt; i++) |
---|
663 | { |
---|
664 | strcpy(tryName,name_noext); |
---|
665 | strcat(tryName,exts[i]); |
---|
666 | if (fileExists(fullname, path, tryName) == TRUE) |
---|
667 | { |
---|
668 | retval = TRUE; |
---|
669 | break; |
---|
670 | } |
---|
671 | fullname[0] = '\0'; |
---|
672 | } |
---|
673 | return retval; |
---|
674 | } |
---|
675 | int fileExists(char* fullname, const char* path, const char* name) |
---|
676 | { |
---|
677 | int retval = FALSE; |
---|
678 | FILE* file; |
---|
679 | size_t len; |
---|
680 | char work[FILENAME_MAX]; |
---|
681 | char work2[MAX_PATH + FILENAME_MAX + 100]; |
---|
682 | if (path != NULL) |
---|
683 | { |
---|
684 | strcpy(work, path); |
---|
685 | len = strlen(work); |
---|
686 | if (len && work[len-1] != '/' && work[len-1] != '\\') |
---|
687 | strcat(work, PATH_SEP_CHAR_STR); |
---|
688 | } |
---|
689 | else |
---|
690 | work[0]='\0'; |
---|
691 | |
---|
692 | strcat(work, name); |
---|
693 | #if defined(__CYGWIN__) |
---|
694 | CYGWIN_CONV_TO_POSIX_PATH((work, work2)); |
---|
695 | #else |
---|
696 | strcpy(work2,work); |
---|
697 | #endif |
---|
698 | |
---|
699 | #ifdef DEBUGALL |
---|
700 | Trace(("looking for...\t%s\n",work2)); |
---|
701 | #endif |
---|
702 | |
---|
703 | file = fopen(work2, "rb"); |
---|
704 | if (file != NULL) |
---|
705 | { |
---|
706 | if (fullname != NULL) |
---|
707 | strcpy(fullname,work2); |
---|
708 | retval = TRUE; |
---|
709 | fclose(file); |
---|
710 | } |
---|
711 | return retval; |
---|
712 | } |
---|