1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
|
/* $NetBSD: str.c,v 1.17 2006/04/04 06:36:12 wiz Exp $ */
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <nbcompat.h>
#if HAVE_SYS_CDEFS_H
#include <sys/cdefs.h>
#endif
#ifndef lint
#if 0
static const char *rcsid = "Id: str.c,v 1.5 1997/10/08 07:48:21 charnier Exp";
#else
__RCSID("$NetBSD: str.c,v 1.17 2006/04/04 06:36:12 wiz Exp $");
#endif
#endif
/*
* FreeBSD install - a package for the installation and maintainance
* of non-core utilities.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Jordan K. Hubbard
* 18 July 1993
*
* Miscellaneous string utilities.
*
*/
#if HAVE_ASSERT_H
#include <assert.h>
#endif
#if HAVE_ERR_H
#include <err.h>
#endif
#if HAVE_FNMATCH_H
#include <fnmatch.h>
#endif
#include "lib.h"
#include "dewey.h"
/* pull in definitions and macros for resizing arrays as we go */
#include "defs.h"
/*
* Return the suffix portion of a path
*/
const char *
suffix_of(const char *str)
{
const char *dot;
return ((dot = strrchr(basename_of(str), '.')) == NULL) ? "" : dot + 1;
}
/*
* Return the filename portion of a path
*/
const char *
basename_of(const char *str)
{
const char *slash;
return ((slash = strrchr(str, '/')) == NULL) ? str : slash + 1;
}
/*
* Return the dirname portion of a path
*/
const char *
dirname_of(const char *path)
{
size_t cc;
char *s;
static char buf[MaxPathSize];
if ((s = strrchr(path, '/')) == NULL) {
return ".";
}
if (s == path) {
/* "/foo" -> return "/" */
return "/";
}
cc = (size_t) (s - path);
if (cc >= sizeof(buf))
errx(EXIT_FAILURE, "dirname_of: too long dirname: '%s'", path);
(void) memcpy(buf, path, cc);
buf[cc] = 0;
return buf;
}
/*
* Get a string parameter as a file spec or as a "contents follow -" spec
*/
char *
get_dash_string(char **s)
{
return *s = (**s == '-') ? strdup(*s + 1) : fileGetContents(*s);
}
/*
* Lowercase a whole string
*/
void
str_lowercase(unsigned char *s)
{
for (; *s; s++) {
*s = tolower(*s);
}
}
/*
* Perform alternate match on "pkg" against "pattern",
* calling pmatch (recursively) to resolve any other patterns.
* Return 1 on match, 0 otherwise
*/
static int
alternate_match(const char *pattern, const char *pkg)
{
char *sep;
char buf[MaxPathSize];
char *last;
char *alt;
char *cp;
int cnt;
int found;
if ((sep = strchr(pattern, '{')) == (char *) NULL) {
errx(EXIT_FAILURE, "alternate_match(): '{' expected in `%s'", pattern);
}
(void) strncpy(buf, pattern, (size_t) (sep - pattern));
alt = &buf[sep - pattern];
last = (char *) NULL;
for (cnt = 0, cp = sep; *cp && last == (char *) NULL; cp++) {
if (*cp == '{') {
cnt++;
} else if (*cp == '}' && --cnt == 0 && last == (char *) NULL) {
last = cp + 1;
}
}
if (cnt != 0) {
errx(EXIT_FAILURE, "Malformed alternate `%s'", pattern);
}
for (found = 0, cp = sep + 1; *sep != '}'; cp = sep + 1) {
for (cnt = 0, sep = cp; cnt > 0 || (cnt == 0 && *sep != '}' && *sep != ','); sep++) {
if (*sep == '{') {
cnt++;
} else if (*sep == '}') {
cnt--;
}
}
(void) snprintf(alt, sizeof(buf) - (alt - buf), "%.*s%s", (int) (sep - cp), cp, last);
if (pmatch(buf, pkg) == 1) {
found = 1;
}
}
return found;
}
/*
* Perform glob match on "pkg" against "pattern".
* Return 1 on match, 0 otherwise
*/
static int
glob_match(const char *pattern, const char *pkg)
{
return fnmatch(pattern, pkg, FNM_PERIOD) == 0;
}
/*
* Perform simple match on "pkg" against "pattern".
* Return 1 on match, 0 otherwise
*/
static int
simple_match(const char *pattern, const char *pkg)
{
return strcmp(pattern, pkg) == 0;
}
/*
* Match pkg against pattern, return 1 if matching, 0 else
*/
int
pmatch(const char *pattern, const char *pkg)
{
if (strchr(pattern, '{') != (char *) NULL) {
/* emulate csh-type alternates */
return alternate_match(pattern, pkg);
}
if (strpbrk(pattern, "<>") != (char *) NULL) {
int ret;
/* perform relational dewey match on version number */
ret = dewey_match(pattern, pkg);
if (ret < 0)
errx(EXIT_FAILURE, "dewey_match returned error");
return ret;
}
if (strpbrk(pattern, "*?[]") != (char *) NULL) {
/* glob match */
return glob_match(pattern, pkg);
}
/* no alternate, dewey or glob match -> simple compare */
return simple_match(pattern, pkg);
}
/*
* Search dir for pattern, calling match(pkg_found, data) for every match.
* Returns -1 on error, 1 if found, 0 otherwise.
*/
int
findmatchingname(const char *dir, const char *pattern, matchfn match, void *data)
{
struct dirent *dp;
char tmp_pattern[PKG_PATTERN_MAX];
DIR *dirp;
int found;
char pat_sfx[PKG_SUFFIX_MAX], file_sfx[PKG_SUFFIX_MAX]; /* suffixes */
if (strlen(pattern) >= PKG_PATTERN_MAX)
errx(EXIT_FAILURE, "too long pattern '%s'", pattern);
found = 0;
if ((dirp = opendir(dir)) == (DIR *) NULL) {
/* warnx("can't opendir dir '%s'", dir); */
return -1;
}
/* chop any possible suffix off of 'pattern' and
* store it in pat_sfx
*/
strip_txz(tmp_pattern, pat_sfx, pattern);
while ((dp = readdir(dirp)) != (struct dirent *) NULL) {
char tmp_file[MaxPathSize];
if (strcmp(dp->d_name, ".") == 0 ||
strcmp(dp->d_name, "..") == 0)
continue;
/* chop any possible suffix off of 'tmp_file' and
* store it in file_sfx
*/
strip_txz(tmp_file, file_sfx, dp->d_name);
/* we need to match pattern and suffix separately, in case
* each is a different pattern class (e.g. dewey and
* character class (.t[bg]z)) */
if (pmatch(tmp_pattern, tmp_file)
&& (pat_sfx[0] == '\0' || pmatch(pat_sfx, file_sfx))) {
if (match) {
match(dp->d_name, data);
/* return value ignored for now */
}
found = 1;
}
}
(void) closedir(dirp);
return found;
}
/*
* Does the pkgname contain any of the special chars ("{[]?*<>")?
* If so, return 1, else 0
*/
int
ispkgpattern(const char *pkg)
{
return strpbrk(pkg, "<>[]?*{") != NULL;
}
/*
* Auxiliary function called by findbestmatchingname() if pkg > data
* Also called for FTP matching
*/
int
findbestmatchingname_fn(const char *found, void *vp)
{
char *best = vp;
char *found_version, *best_version;
char found_no_sfx[PKG_PATTERN_MAX];
char best_no_sfx[PKG_PATTERN_MAX];
/* The same suffix-hack-off again, but we can't do it
* otherwise without changing the function call interface
*/
found_version = strrchr(found, '-');
if (found_version) {
/* skip '-', if any version found */
found_version++;
}
strip_txz(found_no_sfx, NULL, found_version);
found_version = found_no_sfx;
best_version=NULL;
if (best && best[0] != '\0') {
best_version = strrchr(best, '-');
if (best_version) {
/* skip '-' if any version found */
best_version++;
strip_txz(best_no_sfx, NULL, best_version);
best_version = best_no_sfx;
} else {
/* how did this end up in 'best'?
* Shouldn't happen... */
fprintf(stderr,
"'%s' has no usable package(version)\n",
best);
}
}
if (found_version == NULL) {
fprintf(stderr, "'%s' is not a usable package(version)\n",
found);
} else {
/* if best_version==NULL only if best==NULL
* (or best[0]='\0') */
if (best != NULL) {
if (best[0] == '\0'
|| dewey_cmp(found_version, DEWEY_GT, best_version)) {
/* found pkg(version) is bigger than current "best"
* version - remember! */
strcpy(best, found);
}
}
}
return 0;
}
/*
* Find best matching filename, i.e. the pkg with the highest
* matching(!) version.
* Returns pointer to pkg name (which can be free(3)ed),
* or NULL if no match is available.
*/
char *
findbestmatchingname(const char *dir, const char *pattern)
{
char buf[MaxPathSize];
buf[0] = '\0';
if (findmatchingname(dir, pattern, findbestmatchingname_fn, buf) > 0
&& buf[0] != '\0') {
return strdup(buf);
}
return NULL;
}
/*
* Strip off any .tgz, .tbz or .t[bg]z suffix from fname,
* and copy into buffer "buf", the suffix is stored in "sfx"
* if "sfx" is not NULL. If no suffix is found, "sfx" is set
* to an empty string.
*/
void
strip_txz(char *buf, char *sfx, const char *fname)
{
static const char *const suffixes[] = {
".tgz", ".tbz", ".t[bg]z", 0};
const char *const *suffixp;
size_t len;
len = strlen(fname);
assert(len < PKG_PATTERN_MAX);
if (sfx)
sfx[0] = '\0';
for (suffixp = suffixes; *suffixp; suffixp++) {
size_t suffixlen = strlen(*suffixp);
if (memcmp(&fname[len - suffixlen], *suffixp, suffixlen))
continue;
/* matched! */
memcpy(buf, fname, len - suffixlen);
buf[len - suffixlen] = 0;
if (sfx) {
if (suffixlen >= PKG_SUFFIX_MAX)
errx(EXIT_FAILURE, "too long suffix '%s'", fname);
memcpy(sfx, *suffixp, suffixlen+1);
return;
}
}
/* not found */
memcpy(buf, fname, len+1);
}
/*
* Called to see if pkg is already installed as some other version,
* note found version in "note".
*/
int
note_whats_installed(const char *found, void *vp)
{
char *note = vp;
(void) strlcpy(note, found, MaxPathSize);
return 0;
}
/*
* alloc lpkg for pkg and add it to list.
*/
int
add_to_list_fn(const char *pkg, void *vp)
{
lpkg_head_t *pkgs = vp;
lpkg_t *lpp;
char fn[MaxPathSize];
snprintf(fn, sizeof(fn), "%s/%s", _pkgdb_getPKGDB_DIR(), pkg);
if (isdir(fn) || islinktodir(fn)) {
lpp = alloc_lpkg(pkg);
TAILQ_INSERT_TAIL(pkgs, lpp, lp_link);
}
return 0;
}
|