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comparison compat.c @ 35:432c39a4ff86

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New code for checking drive size on OS/2 and Windows.
author bsmith@81767d24-ef19-dc11-ae90-00e081727c95
date Fri, 07 Sep 2001 15:27:55 +0000
parents 6a246b3bb14f
children cddb02f847e1
comparison
equal deleted inserted replaced
34:b03b24bb95f8 35:432c39a4ff86
168 #endif 168 #endif
169 { 169 {
170 #if defined(__EMX__) || defined(__OS2__) 170 #if defined(__EMX__) || defined(__OS2__)
171 ULONG aulFSInfoBuf[40] = {0}; 171 ULONG aulFSInfoBuf[40] = {0};
172 APIRET rc = NO_ERROR; 172 APIRET rc = NO_ERROR;
173 ULONG kbytes;
173 174
174 DosError(FERR_DISABLEHARDERR); 175 DosError(FERR_DISABLEHARDERR);
175 rc = DosQueryFSInfo(drive, 176 rc = DosQueryFSInfo(drive,
176 FSIL_ALLOC, 177 FSIL_ALLOC,
177 (PVOID)aulFSInfoBuf, 178 (PVOID)aulFSInfoBuf,
178 sizeof(aulFSInfoBuf)); 179 sizeof(aulFSInfoBuf));
179 180
180 DosError(FERR_ENABLEHARDERR); 181 DosError(FERR_ENABLEHARDERR);
181 if (rc != NO_ERROR) 182 if (rc != NO_ERROR)
182 return 0; 183 return 0;
183 184
184 return (unsigned long)((aulFSInfoBuf[3] * aulFSInfoBuf[1] * (USHORT)aulFSInfoBuf[4])/1024); 185 kbytes = aulFSInfoBuf[3]/1024;
186
187 return (unsigned long)(kbytes * aulFSInfoBuf[1] * aulFSInfoBuf[4]);
185 #elif defined(__WIN32__) || defined(WINNT) 188 #elif defined(__WIN32__) || defined(WINNT)
186 char buffer[10] = "C:\\"; 189 char buffer[10] = "C:\\";
187 DWORD spc, bps, fc, tc; 190 DWORD spc, bps, fc, tc;
188 191
189 buffer[0] = drive + 'A' - 1; 192 buffer[0] = drive + 'A' - 1;
190 193
191 if(GetDiskFreeSpace(buffer, &spc, &bps, &fc, &tc) == 0) 194 if(GetDiskFreeSpace(buffer, &spc, &bps, &fc, &tc) == 0)
192 return 0; 195 return 0;
193 return (unsigned long)(spc*bps*(fc/1024)); 196 return (unsigned long)(spc*bps*(fc/1024));
197 #else
198 return 0;
199 #endif
200 }
201
202 /* Return in K to avoid big problems exceeding an
203 unsigned long when no 64bit integers are available */
204 #if defined(__IBMC__) || (defined(__WIN32__) && !defined(__CYGWIN32__))
205 unsigned long drivesize(int drive)
206 #else
207 unsigned long long drivesize(int drive)
208 #endif
209 {
210 #if defined(__EMX__) || defined(__OS2__)
211 ULONG aulFSInfoBuf[40] = {0};
212 APIRET rc = NO_ERROR;
213 ULONG kbytes;
214
215 DosError(FERR_DISABLEHARDERR);
216 rc = DosQueryFSInfo(drive,
217 FSIL_ALLOC,
218 (PVOID)aulFSInfoBuf,
219 sizeof(aulFSInfoBuf));
220
221 DosError(FERR_ENABLEHARDERR);
222 if (rc != NO_ERROR)
223 return 0;
224
225 kbytes = aulFSInfoBuf[2]/1024;
226
227 return (unsigned long)(kbytes * aulFSInfoBuf[1] * aulFSInfoBuf[4]);
228 #elif defined(__WIN32__) || defined(WINNT)
229 char buffer[10] = "C:\\";
230 DWORD spc, bps, fc, tc;
231
232 buffer[0] = drive + 'A' - 1;
233
234 if(GetDiskFreeSpace(buffer, &spc, &bps, &fc, &tc) == 0)
235 return 0;
236 return (unsigned long)(spc*bps*(tc/1024));
194 #else 237 #else
195 return 0; 238 return 0;
196 #endif 239 #endif
197 } 240 }
198 241