Mercurial > dwindows
annotate os2/dirent.c @ 828:14c9f4a8839e
Attempt to get dw_font_text_extents_get() on controls besides the render control.
author | bsmith@81767d24-ef19-dc11-ae90-00e081727c95 |
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date | Sun, 27 Mar 2011 00:07:07 +0000 |
parents | d78f476c40f5 |
children | 184b3aedc2ff |
rev | line source |
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3 | 1 #include <stdio.h> |
2 #include <stdlib.h> | |
3 #include <string.h> | |
4 #include <ctype.h> | |
5 | |
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6 #define INCL_DOSFILEMGR |
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7 #define INCL_DOSERRORS |
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8 #include "compat.h" |
3 | 9 #include <errno.h> |
10 | |
11 # define FFBUF FILEFINDBUF3 | |
12 # define Word ULONG | |
13 /* | |
14 * LS20 recommends a request count of 100, but according to the | |
15 * APAR text it does not lead to missing files, just to funny | |
16 * numbers of returned entries. | |
17 * | |
18 * LS30 HPFS386 requires a count greater than 2, or some files | |
19 * are missing (those starting with a character less that '.'). | |
20 * | |
21 * Novell looses entries which overflow the buffer. In previous | |
22 * versions of dirent2, this could have lead to missing files | |
23 * when the average length of 100 directory entries was 40 bytes | |
24 * or more (quite unlikely for files on a Novell server). | |
25 * | |
26 * Conclusion: Make sure that the entries all fit into the buffer | |
27 * and that the buffer is large enough for more than 2 entries | |
28 * (each entry is at most 300 bytes long). And ignore the LS20 | |
29 * effect. | |
30 */ | |
31 # define Count 25 | |
32 # define BufSz (25 * (sizeof(FILEFINDBUF3)+1)) | |
33 | |
34 #if defined(__IBMC__) || defined(__IBMCPP__) | |
35 #define error(rc) _doserrno = rc, errno = EOS2ERR | |
36 #else | |
37 #define error(rc) errno = 255 | |
38 #endif | |
39 | |
40 struct _dirdescr { | |
41 HDIR handle; /* DosFindFirst handle */ | |
42 char fstype; /* filesystem type */ | |
43 Word count; /* valid entries in <ffbuf> */ | |
44 long number; /* absolute number of next entry */ | |
45 int index; /* relative number of next entry */ | |
46 FFBUF * next; /* pointer to next entry */ | |
47 char name[MAXPATHLEN+3]; /* directory name */ | |
48 unsigned attrmask; /* attribute mask for seekdir */ | |
49 struct dirent entry; /* buffer for directory entry */ | |
50 BYTE ffbuf[BufSz]; | |
51 }; | |
52 | |
53 /* | |
54 * Return first char of filesystem type, or 0 if unknown. | |
55 */ | |
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56 static char API getFSType(const char *path) |
3 | 57 { |
58 static char cache[1+26]; | |
59 char drive[3], info[512]; | |
60 Word unit, infolen; | |
61 char r; | |
62 | |
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63 if (isalpha((int)path[0]) && path[1] == ':') { |
3 | 64 unit = toupper(path[0]) - '@'; |
65 path += 2; | |
66 } else { | |
67 ULONG driveMap; | |
68 if (DosQueryCurrentDisk(&unit, &driveMap)) | |
69 return 0; | |
70 } | |
71 | |
72 if ((path[0] == '\\' || path[0] == '/') | |
73 && (path[1] == '\\' || path[1] == '/')) | |
74 return 0; | |
75 | |
76 if (cache [unit]) | |
77 return cache [unit]; | |
78 | |
79 drive[0] = '@' + unit; | |
80 drive[1] = ':'; | |
81 drive[2] = '\0'; | |
82 infolen = sizeof info; | |
83 if (DosQueryFSAttach(drive, 0, FSAIL_QUERYNAME, (PVOID)info, &infolen)) | |
84 return 0; | |
85 if (infolen >= sizeof(FSQBUFFER2)) { | |
86 FSQBUFFER2 *p = (FSQBUFFER2 *)info; | |
87 r = p->szFSDName[p->cbName]; | |
88 } else | |
89 r = 0; | |
90 return cache [unit] = r; | |
91 } | |
92 | |
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93 char * API _abs_path(const char *name, char *buffer, int len) |
3 | 94 { |
95 char buf[4]; | |
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96 if (isalpha((int)name[0]) && name[1] == ':' && name[2] == '\0') { |
3 | 97 buf[0] = name[0]; |
98 buf[1] = name[1]; | |
99 buf[2] = '.'; | |
100 buf[3] = '\0'; | |
101 name = buf; | |
102 } | |
103 if (DosQueryPathInfo((PSZ)name, FIL_QUERYFULLNAME, buffer, len)) | |
104 return NULL; | |
105 return buffer; | |
106 } | |
107 | |
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108 DIR * API _openxdir(const char *path, unsigned att_mask) |
3 | 109 { |
110 DIR *dir; | |
111 char name[MAXPATHLEN+3]; | |
112 Word rc; | |
113 | |
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114 if(!path) |
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115 return NULL; |
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116 |
3 | 117 dir = malloc(sizeof(DIR)); |
118 if (dir == NULL) { | |
119 errno = ENOMEM; | |
120 return NULL; | |
121 } | |
122 | |
123 strncpy(name, path, MAXPATHLEN); | |
124 name[MAXPATHLEN] = '\0'; | |
125 switch (name[strlen(name)-1]) { | |
126 default: | |
127 strcat(name, "\\"); | |
128 case '\\': | |
129 case '/': | |
130 case ':': | |
131 ; | |
132 } | |
133 strcat(name, "."); | |
134 if (!abs_path(name, dir->name, MAXPATHLEN+1)) | |
135 strcpy(dir->name, name); | |
136 if (dir->name[strlen(dir->name)-1] == '\\') | |
137 strcat(dir->name, "*"); | |
138 else | |
139 strcat(dir->name, "\\*"); | |
140 | |
141 dir->fstype = getFSType(dir->name); | |
142 dir->attrmask = att_mask | A_DIR; | |
143 | |
144 dir->handle = HDIR_CREATE; | |
145 dir->count = 100; | |
146 rc = DosFindFirst(dir->name, &dir->handle, dir->attrmask, | |
147 dir->ffbuf, sizeof dir->ffbuf, &dir->count, FIL_STANDARD); | |
148 switch (rc) { | |
149 default: | |
150 free(dir); | |
151 error(rc); | |
152 return NULL; | |
153 case NO_ERROR: | |
154 case ERROR_NO_MORE_FILES: | |
155 ; | |
156 } | |
157 | |
158 dir->number = 0; | |
159 dir->index = 0; | |
160 dir->next = (FFBUF *)dir->ffbuf; | |
161 | |
162 return (DIR *)dir; | |
163 } | |
164 | |
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Fixes for building with Innotek GCC. Will have to check for regressions
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165 DIR * API _opendir(const char *pathname) |
3 | 166 { |
167 return openxdir(pathname, 0); | |
168 } | |
169 | |
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170 struct dirent * API _readdir(DIR *dir) |
3 | 171 { |
172 static int dummy_ino = 2; | |
173 | |
174 if (dir->index == dir->count) { | |
175 Word rc; | |
176 dir->count = 100; | |
177 rc = DosFindNext(dir->handle, dir->ffbuf, | |
178 sizeof dir->ffbuf, &dir->count); | |
179 if (rc) { | |
180 error(rc); | |
181 return NULL; | |
182 } | |
183 | |
184 dir->index = 0; | |
185 dir->next = (FFBUF *)dir->ffbuf; | |
186 } | |
187 | |
188 if (dir->index == dir->count) | |
189 return NULL; | |
190 | |
191 memcpy(dir->entry.d_name, dir->next->achName, dir->next->cchName); | |
192 dir->entry.d_name[dir->next->cchName] = '\0'; | |
193 dir->entry.d_ino = dummy_ino++; | |
194 dir->entry.d_reclen = dir->next->cchName; | |
195 dir->entry.d_namlen = dir->next->cchName; | |
196 dir->entry.d_size = dir->next->cbFile; | |
197 dir->entry.d_attribute = dir->next->attrFile; | |
198 dir->entry.d_time = *(USHORT *)&dir->next->ftimeLastWrite; | |
199 dir->entry.d_date = *(USHORT *)&dir->next->fdateLastWrite; | |
200 | |
201 switch (dir->fstype) { | |
202 case 'F': /* FAT */ | |
203 case 'C': /* CDFS */ | |
204 if (dir->next->attrFile & FILE_DIRECTORY) | |
205 strupr(dir->entry.d_name); | |
206 else | |
207 strlwr(dir->entry.d_name); | |
208 } | |
209 | |
210 dir->next = (FFBUF *)((BYTE *)dir->next + dir->next->oNextEntryOffset); | |
211 ++dir->number; | |
212 ++dir->index; | |
213 | |
214 return &dir->entry; | |
215 } | |
216 | |
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217 long API _telldir(DIR *dir) |
3 | 218 { |
219 return dir->number; | |
220 } | |
221 | |
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222 void API _seekdir(DIR *dir, long off) |
3 | 223 { |
224 if (dir->number > off) { | |
225 char name[MAXPATHLEN+2]; | |
226 Word rc; | |
227 | |
228 DosFindClose(dir->handle); | |
229 | |
230 strcpy(name, dir->name); | |
231 strcat(name, "*"); | |
232 | |
233 dir->handle = HDIR_CREATE; | |
234 dir->count = 32767; | |
235 rc = DosFindFirst(name, &dir->handle, dir->attrmask, | |
236 dir->ffbuf, sizeof dir->ffbuf, &dir->count, FIL_STANDARD); | |
237 switch (rc) { | |
238 default: | |
239 error(rc); | |
240 return; | |
241 case NO_ERROR: | |
242 case ERROR_NO_MORE_FILES: | |
243 ; | |
244 } | |
245 | |
246 dir->number = 0; | |
247 dir->index = 0; | |
248 dir->next = (FFBUF *)dir->ffbuf; | |
249 } | |
250 | |
251 while (dir->number < off && readdir(dir)) | |
252 ; | |
253 } | |
254 | |
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255 void API _closedir(DIR *dir) |
3 | 256 { |
257 DosFindClose(dir->handle); | |
258 free(dir); | |
259 } | |
260 | |
261 /*****************************************************************************/ | |
262 | |
263 #ifdef TEST | |
264 | |
265 main(int argc, char **argv) | |
266 { | |
267 int i; | |
268 DIR *dir; | |
269 struct dirent *ep; | |
270 | |
271 for (i = 1; i < argc; ++i) { | |
272 dir = opendir(argv[i]); | |
273 if (!dir) | |
274 continue; | |
275 while (ep = readdir(dir)) | |
276 if (strchr("\\/:", argv[i] [strlen(argv[i]) - 1])) | |
277 printf("%s%s\n", argv[i], ep->d_name); | |
278 else | |
279 printf("%s/%s\n", argv[i], ep->d_name); | |
280 closedir(dir); | |
281 } | |
282 | |
283 return 0; | |
284 } | |
285 | |
286 #endif | |
287 |