1 /*
2 *******************************************************************************
3 *
4 * Copyright (C) 1999-2010, International Business Machines
5 * Corporation and others. All Rights Reserved.
6 *
7 *******************************************************************************
8 * file name: toolutil.c
9 * encoding: US-ASCII
10 * tab size: 8 (not used)
11 * indentation:4
12 *
13 * created on: 1999nov19
14 * created by: Markus W. Scherer
15 *
16 * 6/25/08 - Added Cygwin specific code in uprv_mkdir - Brian Rower
17 *
18 * This file contains utility functions for ICU tools like genccode.
19 */
20
21 #include <stdio.h>
22 #include <sys/stat.h>
23 #include "unicode/utypes.h"
24
25 #ifdef U_WINDOWS
26 # define VC_EXTRALEAN
27 # define WIN32_LEAN_AND_MEAN
28 # define NOUSER
29 # define NOSERVICE
30 # define NOIME
31 # define NOMCX
32 # include <windows.h>
33 # include <direct.h>
34 #else
35 # include <sys/stat.h>
36 # include <sys/types.h>
37 #endif
38
39 /* In MinGW environment, io.h needs to be included for _mkdir() */
40 #ifdef __MINGW32__
41 #include <io.h>
42 #endif
43
44 #include <errno.h>
45
46 #include "unicode/errorcode.h"
47 #include "unicode/putil.h"
48 #include "cmemory.h"
49 #include "cstring.h"
50 #include "toolutil.h"
51 #include "unicode/ucal.h"
52
53 U_NAMESPACE_BEGIN
54
~IcuToolErrorCode()55 IcuToolErrorCode::~IcuToolErrorCode() {
56 // Safe because our handleFailure() does not throw exceptions.
57 if(isFailure()) { handleFailure(); }
58 }
59
handleFailure() const60 void IcuToolErrorCode::handleFailure() const {
61 fprintf(stderr, "error at %s: %s\n", location, errorName());
62 exit(errorCode);
63 }
64
65 U_NAMESPACE_END
66
67 static int32_t currentYear = -1;
68
getCurrentYear()69 U_CAPI int32_t U_EXPORT2 getCurrentYear() {
70 #if !UCONFIG_NO_FORMATTING
71 UErrorCode status=U_ZERO_ERROR;
72 UCalendar *cal = NULL;
73
74 if(currentYear == -1) {
75 cal = ucal_open(NULL, -1, NULL, UCAL_TRADITIONAL, &status);
76 ucal_setMillis(cal, ucal_getNow(), &status);
77 currentYear = ucal_get(cal, UCAL_YEAR, &status);
78 ucal_close(cal);
79 }
80 #else
81 /* No formatting- no way to set the current year. */
82 #endif
83 return currentYear;
84 }
85
86
87 U_CAPI const char * U_EXPORT2
getLongPathname(const char * pathname)88 getLongPathname(const char *pathname) {
89 #ifdef U_WINDOWS
90 /* anticipate problems with "short" pathnames */
91 static WIN32_FIND_DATAA info;
92 HANDLE file=FindFirstFileA(pathname, &info);
93 if(file!=INVALID_HANDLE_VALUE) {
94 if(info.cAlternateFileName[0]!=0) {
95 /* this file has a short name, get and use the long one */
96 const char *basename=findBasename(pathname);
97 if(basename!=pathname) {
98 /* prepend the long filename with the original path */
99 uprv_memmove(info.cFileName+(basename-pathname), info.cFileName, uprv_strlen(info.cFileName)+1);
100 uprv_memcpy(info.cFileName, pathname, basename-pathname);
101 }
102 pathname=info.cFileName;
103 }
104 FindClose(file);
105 }
106 #endif
107 return pathname;
108 }
109
110 U_CAPI const char * U_EXPORT2
findDirname(const char * path,char * buffer,int32_t bufLen,UErrorCode * status)111 findDirname(const char *path, char *buffer, int32_t bufLen, UErrorCode* status) {
112 if(U_FAILURE(*status)) return NULL;
113 const char *resultPtr = NULL;
114 int32_t resultLen = 0;
115
116 const char *basename=uprv_strrchr(path, U_FILE_SEP_CHAR);
117 #if U_FILE_ALT_SEP_CHAR!=U_FILE_SEP_CHAR
118 const char *basenameAlt=uprv_strrchr(path, U_FILE_ALT_SEP_CHAR);
119 if(basenameAlt && (!basename || basename<basenameAlt)) {
120 basename = basenameAlt;
121 }
122 #endif
123 if(!basename) {
124 /* no basename - return '.'. */
125 resultPtr = ".";
126 resultLen = 1;
127 } else {
128 resultPtr = path;
129 resultLen = basename - path;
130 if(resultLen<1) {
131 resultLen = 1; /* '/' or '/a' -> '/' */
132 }
133 }
134
135 if((resultLen+1) <= bufLen) {
136 uprv_strncpy(buffer, resultPtr, resultLen);
137 buffer[resultLen]=0;
138 return buffer;
139 } else {
140 *status = U_BUFFER_OVERFLOW_ERROR;
141 return NULL;
142 }
143 }
144
145 U_CAPI const char * U_EXPORT2
findBasename(const char * filename)146 findBasename(const char *filename) {
147 const char *basename=uprv_strrchr(filename, U_FILE_SEP_CHAR);
148
149 #if U_FILE_ALT_SEP_CHAR!=U_FILE_SEP_CHAR
150 if(basename==NULL) {
151 /* Use lenient matching on Windows, which can accept either \ or /
152 This is useful for environments like Win32+CygWin which have both.
153 */
154 basename=uprv_strrchr(filename, U_FILE_ALT_SEP_CHAR);
155 }
156 #endif
157
158 if(basename!=NULL) {
159 return basename+1;
160 } else {
161 return filename;
162 }
163 }
164
165 U_CAPI void U_EXPORT2
uprv_mkdir(const char * pathname,UErrorCode * status)166 uprv_mkdir(const char *pathname, UErrorCode *status) {
167
168 int retVal = 0;
169 #if defined(U_WINDOWS) || defined(__MINGW32__)
170 retVal = _mkdir(pathname);
171 #else
172 retVal = mkdir(pathname, S_IRWXU | (S_IROTH | S_IXOTH) | (S_IROTH | S_IXOTH));
173 #endif
174 if (retVal && errno != EEXIST) {
175 #if defined(U_CYGWIN)
176 /*if using Cygwin and the mkdir says it failed...check if the directory already exists..*/
177 /* if it does...don't give the error, if it does not...give the error - Brian Rower - 6/25/08 */
178 struct stat st;
179
180 if(stat(pathname,&st) != 0)
181 {
182 *status = U_FILE_ACCESS_ERROR;
183 }
184 #else
185 *status = U_FILE_ACCESS_ERROR;
186 #endif
187 }
188 }
189
190 /*U_CAPI UDate U_EXPORT2
191 uprv_getModificationDate(const char *pathname, UErrorCode *status)
192 {
193 if(U_FAILURE(*status)) {
194 return;
195 }
196 // TODO: handle case where stat is not available
197 struct stat st;
198
199 if(stat(pathname,&st) != 0)
200 {
201 *status = U_FILE_ACCESS_ERROR;
202 } else {
203 return st.st_mtime;
204 }
205 }
206 */
207
208 /* tool memory helper ------------------------------------------------------- */
209
210 struct UToolMemory {
211 char name[64];
212 int32_t capacity, maxCapacity, size, idx;
213 void *array;
214 UAlignedMemory staticArray[1];
215 };
216
217 U_CAPI UToolMemory * U_EXPORT2
utm_open(const char * name,int32_t initialCapacity,int32_t maxCapacity,int32_t size)218 utm_open(const char *name, int32_t initialCapacity, int32_t maxCapacity, int32_t size) {
219 UToolMemory *mem;
220
221 if(maxCapacity<initialCapacity) {
222 maxCapacity=initialCapacity;
223 }
224
225 mem=(UToolMemory *)uprv_malloc(sizeof(UToolMemory)+initialCapacity*size);
226 if(mem==NULL) {
227 fprintf(stderr, "error: %s - out of memory\n", name);
228 exit(U_MEMORY_ALLOCATION_ERROR);
229 }
230 mem->array=mem->staticArray;
231
232 uprv_strcpy(mem->name, name);
233 mem->capacity=initialCapacity;
234 mem->maxCapacity=maxCapacity;
235 mem->size=size;
236 mem->idx=0;
237 return mem;
238 }
239
240 U_CAPI void U_EXPORT2
utm_close(UToolMemory * mem)241 utm_close(UToolMemory *mem) {
242 if(mem!=NULL) {
243 if(mem->array!=mem->staticArray) {
244 uprv_free(mem->array);
245 }
246 uprv_free(mem);
247 }
248 }
249
250
251 U_CAPI void * U_EXPORT2
utm_getStart(UToolMemory * mem)252 utm_getStart(UToolMemory *mem) {
253 return (char *)mem->array;
254 }
255
256 U_CAPI int32_t U_EXPORT2
utm_countItems(UToolMemory * mem)257 utm_countItems(UToolMemory *mem) {
258 return mem->idx;
259 }
260
261
262 static UBool
utm_hasCapacity(UToolMemory * mem,int32_t capacity)263 utm_hasCapacity(UToolMemory *mem, int32_t capacity) {
264 if(mem->capacity<capacity) {
265 int32_t newCapacity;
266
267 if(mem->maxCapacity<capacity) {
268 fprintf(stderr, "error: %s - trying to use more than maxCapacity=%ld units\n",
269 mem->name, (long)mem->maxCapacity);
270 exit(U_MEMORY_ALLOCATION_ERROR);
271 }
272
273 /* try to allocate a larger array */
274 if(capacity>=2*mem->capacity) {
275 newCapacity=capacity;
276 } else if(mem->capacity<=mem->maxCapacity/3) {
277 newCapacity=2*mem->capacity;
278 } else {
279 newCapacity=mem->maxCapacity;
280 }
281
282 if(mem->array==mem->staticArray) {
283 mem->array=uprv_malloc(newCapacity*mem->size);
284 if(mem->array!=NULL) {
285 uprv_memcpy(mem->array, mem->staticArray, mem->idx*mem->size);
286 }
287 } else {
288 mem->array=uprv_realloc(mem->array, newCapacity*mem->size);
289 }
290
291 if(mem->array==NULL) {
292 fprintf(stderr, "error: %s - out of memory\n", mem->name);
293 exit(U_MEMORY_ALLOCATION_ERROR);
294 }
295 mem->capacity=newCapacity;
296 }
297
298 return TRUE;
299 }
300
301 U_CAPI void * U_EXPORT2
utm_alloc(UToolMemory * mem)302 utm_alloc(UToolMemory *mem) {
303 char *p=NULL;
304 int32_t oldIndex=mem->idx;
305 int32_t newIndex=oldIndex+1;
306 if(utm_hasCapacity(mem, newIndex)) {
307 p=(char *)mem->array+oldIndex*mem->size;
308 mem->idx=newIndex;
309 uprv_memset(p, 0, mem->size);
310 }
311 return p;
312 }
313
314 U_CAPI void * U_EXPORT2
utm_allocN(UToolMemory * mem,int32_t n)315 utm_allocN(UToolMemory *mem, int32_t n) {
316 char *p=NULL;
317 int32_t oldIndex=mem->idx;
318 int32_t newIndex=oldIndex+n;
319 if(utm_hasCapacity(mem, newIndex)) {
320 p=(char *)mem->array+oldIndex*mem->size;
321 mem->idx=newIndex;
322 uprv_memset(p, 0, n*mem->size);
323 }
324 return p;
325 }
326