Mercurial > dwindows
annotate os2/dirent.c @ 526:d3ce0afa6cf5
Remove extraneous arguments to dw_messagebox()
author | mhessling@81767d24-ef19-dc11-ae90-00e081727c95 |
---|---|
date | Tue, 23 Mar 2004 10:10:27 +0000 |
parents | 2ff26b697877 |
children | e0ea29c3d1eb |
rev | line source |
---|---|
3 | 1 #include <stdio.h> |
2 #include <stdlib.h> | |
3 #include <string.h> | |
4 #include <ctype.h> | |
5 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
6 #define INCL_DOSFILEMGR |
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
7 #define INCL_DOSERRORS |
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
8 #include "dw.h" |
24
d9e87e8bcf1d
Updated dynamic windows to build with EMX.
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
3
diff
changeset
|
9 #include "platform/dirent.h" |
3 | 10 #include <errno.h> |
11 | |
12 # define FFBUF FILEFINDBUF3 | |
13 # define Word ULONG | |
14 /* | |
15 * LS20 recommends a request count of 100, but according to the | |
16 * APAR text it does not lead to missing files, just to funny | |
17 * numbers of returned entries. | |
18 * | |
19 * LS30 HPFS386 requires a count greater than 2, or some files | |
20 * are missing (those starting with a character less that '.'). | |
21 * | |
22 * Novell looses entries which overflow the buffer. In previous | |
23 * versions of dirent2, this could have lead to missing files | |
24 * when the average length of 100 directory entries was 40 bytes | |
25 * or more (quite unlikely for files on a Novell server). | |
26 * | |
27 * Conclusion: Make sure that the entries all fit into the buffer | |
28 * and that the buffer is large enough for more than 2 entries | |
29 * (each entry is at most 300 bytes long). And ignore the LS20 | |
30 * effect. | |
31 */ | |
32 # define Count 25 | |
33 # define BufSz (25 * (sizeof(FILEFINDBUF3)+1)) | |
34 | |
35 #if defined(__IBMC__) || defined(__IBMCPP__) | |
36 #define error(rc) _doserrno = rc, errno = EOS2ERR | |
37 #else | |
38 #define error(rc) errno = 255 | |
39 #endif | |
40 | |
41 struct _dirdescr { | |
42 HDIR handle; /* DosFindFirst handle */ | |
43 char fstype; /* filesystem type */ | |
44 Word count; /* valid entries in <ffbuf> */ | |
45 long number; /* absolute number of next entry */ | |
46 int index; /* relative number of next entry */ | |
47 FFBUF * next; /* pointer to next entry */ | |
48 char name[MAXPATHLEN+3]; /* directory name */ | |
49 unsigned attrmask; /* attribute mask for seekdir */ | |
50 struct dirent entry; /* buffer for directory entry */ | |
51 BYTE ffbuf[BufSz]; | |
52 }; | |
53 | |
54 /* | |
55 * Return first char of filesystem type, or 0 if unknown. | |
56 */ | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
57 static char API getFSType(const char *path) |
3 | 58 { |
59 static char cache[1+26]; | |
60 char drive[3], info[512]; | |
61 Word unit, infolen; | |
62 char r; | |
63 | |
289
0e6f09149eaa
Fixed some EMX warnings.
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
174
diff
changeset
|
64 if (isalpha((int)path[0]) && path[1] == ':') { |
3 | 65 unit = toupper(path[0]) - '@'; |
66 path += 2; | |
67 } else { | |
68 ULONG driveMap; | |
69 if (DosQueryCurrentDisk(&unit, &driveMap)) | |
70 return 0; | |
71 } | |
72 | |
73 if ((path[0] == '\\' || path[0] == '/') | |
74 && (path[1] == '\\' || path[1] == '/')) | |
75 return 0; | |
76 | |
77 if (cache [unit]) | |
78 return cache [unit]; | |
79 | |
80 drive[0] = '@' + unit; | |
81 drive[1] = ':'; | |
82 drive[2] = '\0'; | |
83 infolen = sizeof info; | |
84 if (DosQueryFSAttach(drive, 0, FSAIL_QUERYNAME, (PVOID)info, &infolen)) | |
85 return 0; | |
86 if (infolen >= sizeof(FSQBUFFER2)) { | |
87 FSQBUFFER2 *p = (FSQBUFFER2 *)info; | |
88 r = p->szFSDName[p->cbName]; | |
89 } else | |
90 r = 0; | |
91 return cache [unit] = r; | |
92 } | |
93 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
94 char * API _abs_path(const char *name, char *buffer, int len) |
3 | 95 { |
96 char buf[4]; | |
289
0e6f09149eaa
Fixed some EMX warnings.
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
174
diff
changeset
|
97 if (isalpha((int)name[0]) && name[1] == ':' && name[2] == '\0') { |
3 | 98 buf[0] = name[0]; |
99 buf[1] = name[1]; | |
100 buf[2] = '.'; | |
101 buf[3] = '\0'; | |
102 name = buf; | |
103 } | |
104 if (DosQueryPathInfo((PSZ)name, FIL_QUERYFULLNAME, buffer, len)) | |
105 return NULL; | |
106 return buffer; | |
107 } | |
108 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
109 DIR * API _openxdir(const char *path, unsigned att_mask) |
3 | 110 { |
111 DIR *dir; | |
112 char name[MAXPATHLEN+3]; | |
113 Word rc; | |
114 | |
24
d9e87e8bcf1d
Updated dynamic windows to build with EMX.
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
3
diff
changeset
|
115 if(!path) |
d9e87e8bcf1d
Updated dynamic windows to build with EMX.
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
3
diff
changeset
|
116 return NULL; |
d9e87e8bcf1d
Updated dynamic windows to build with EMX.
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
3
diff
changeset
|
117 |
3 | 118 dir = malloc(sizeof(DIR)); |
119 if (dir == NULL) { | |
120 errno = ENOMEM; | |
121 return NULL; | |
122 } | |
123 | |
124 strncpy(name, path, MAXPATHLEN); | |
125 name[MAXPATHLEN] = '\0'; | |
126 switch (name[strlen(name)-1]) { | |
127 default: | |
128 strcat(name, "\\"); | |
129 case '\\': | |
130 case '/': | |
131 case ':': | |
132 ; | |
133 } | |
134 strcat(name, "."); | |
135 if (!abs_path(name, dir->name, MAXPATHLEN+1)) | |
136 strcpy(dir->name, name); | |
137 if (dir->name[strlen(dir->name)-1] == '\\') | |
138 strcat(dir->name, "*"); | |
139 else | |
140 strcat(dir->name, "\\*"); | |
141 | |
142 dir->fstype = getFSType(dir->name); | |
143 dir->attrmask = att_mask | A_DIR; | |
144 | |
145 dir->handle = HDIR_CREATE; | |
146 dir->count = 100; | |
147 rc = DosFindFirst(dir->name, &dir->handle, dir->attrmask, | |
148 dir->ffbuf, sizeof dir->ffbuf, &dir->count, FIL_STANDARD); | |
149 switch (rc) { | |
150 default: | |
151 free(dir); | |
152 error(rc); | |
153 return NULL; | |
154 case NO_ERROR: | |
155 case ERROR_NO_MORE_FILES: | |
156 ; | |
157 } | |
158 | |
159 dir->number = 0; | |
160 dir->index = 0; | |
161 dir->next = (FFBUF *)dir->ffbuf; | |
162 | |
163 return (DIR *)dir; | |
164 } | |
165 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
166 DIR * API _opendir(const char *pathname) |
3 | 167 { |
168 return openxdir(pathname, 0); | |
169 } | |
170 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
171 struct dirent * API _readdir(DIR *dir) |
3 | 172 { |
173 static int dummy_ino = 2; | |
174 | |
175 if (dir->index == dir->count) { | |
176 Word rc; | |
177 dir->count = 100; | |
178 rc = DosFindNext(dir->handle, dir->ffbuf, | |
179 sizeof dir->ffbuf, &dir->count); | |
180 if (rc) { | |
181 error(rc); | |
182 return NULL; | |
183 } | |
184 | |
185 dir->index = 0; | |
186 dir->next = (FFBUF *)dir->ffbuf; | |
187 } | |
188 | |
189 if (dir->index == dir->count) | |
190 return NULL; | |
191 | |
192 memcpy(dir->entry.d_name, dir->next->achName, dir->next->cchName); | |
193 dir->entry.d_name[dir->next->cchName] = '\0'; | |
194 dir->entry.d_ino = dummy_ino++; | |
195 dir->entry.d_reclen = dir->next->cchName; | |
196 dir->entry.d_namlen = dir->next->cchName; | |
197 dir->entry.d_size = dir->next->cbFile; | |
198 dir->entry.d_attribute = dir->next->attrFile; | |
199 dir->entry.d_time = *(USHORT *)&dir->next->ftimeLastWrite; | |
200 dir->entry.d_date = *(USHORT *)&dir->next->fdateLastWrite; | |
201 | |
202 switch (dir->fstype) { | |
203 case 'F': /* FAT */ | |
204 case 'C': /* CDFS */ | |
205 if (dir->next->attrFile & FILE_DIRECTORY) | |
206 strupr(dir->entry.d_name); | |
207 else | |
208 strlwr(dir->entry.d_name); | |
209 } | |
210 | |
211 dir->next = (FFBUF *)((BYTE *)dir->next + dir->next->oNextEntryOffset); | |
212 ++dir->number; | |
213 ++dir->index; | |
214 | |
215 return &dir->entry; | |
216 } | |
217 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
218 long API _telldir(DIR *dir) |
3 | 219 { |
220 return dir->number; | |
221 } | |
222 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
223 void API _seekdir(DIR *dir, long off) |
3 | 224 { |
225 if (dir->number > off) { | |
226 char name[MAXPATHLEN+2]; | |
227 Word rc; | |
228 | |
229 DosFindClose(dir->handle); | |
230 | |
231 strcpy(name, dir->name); | |
232 strcat(name, "*"); | |
233 | |
234 dir->handle = HDIR_CREATE; | |
235 dir->count = 32767; | |
236 rc = DosFindFirst(name, &dir->handle, dir->attrmask, | |
237 dir->ffbuf, sizeof dir->ffbuf, &dir->count, FIL_STANDARD); | |
238 switch (rc) { | |
239 default: | |
240 error(rc); | |
241 return; | |
242 case NO_ERROR: | |
243 case ERROR_NO_MORE_FILES: | |
244 ; | |
245 } | |
246 | |
247 dir->number = 0; | |
248 dir->index = 0; | |
249 dir->next = (FFBUF *)dir->ffbuf; | |
250 } | |
251 | |
252 while (dir->number < off && readdir(dir)) | |
253 ; | |
254 } | |
255 | |
525
2ff26b697877
Fixes for building with Innotek GCC. Will have to check for regressions
bsmith@81767d24-ef19-dc11-ae90-00e081727c95
parents:
289
diff
changeset
|
256 void API _closedir(DIR *dir) |
3 | 257 { |
258 DosFindClose(dir->handle); | |
259 free(dir); | |
260 } | |
261 | |
262 /*****************************************************************************/ | |
263 | |
264 #ifdef TEST | |
265 | |
266 main(int argc, char **argv) | |
267 { | |
268 int i; | |
269 DIR *dir; | |
270 struct dirent *ep; | |
271 | |
272 for (i = 1; i < argc; ++i) { | |
273 dir = opendir(argv[i]); | |
274 if (!dir) | |
275 continue; | |
276 while (ep = readdir(dir)) | |
277 if (strchr("\\/:", argv[i] [strlen(argv[i]) - 1])) | |
278 printf("%s%s\n", argv[i], ep->d_name); | |
279 else | |
280 printf("%s/%s\n", argv[i], ep->d_name); | |
281 closedir(dir); | |
282 } | |
283 | |
284 return 0; | |
285 } | |
286 | |
287 #endif | |
288 |