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