aboutsummaryrefslogtreecommitdiffstats
path: root/rpmtools.xs
blob: dac839bb631106bf429072f29d14ca57ea28be38 (plain)
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
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#undef Fflush
#undef Mkdir
#undef Stat
#include <rpm/rpmlib.h>
#include <rpm/header.h>

#define HDFLAGS_NAME          0x00000001
#define HDFLAGS_VERSION       0x00000002
#define HDFLAGS_RELEASE       0x00000004
#define HDFLAGS_ARCH          0x00000008
#define HDFLAGS_GROUP         0x00000010
#define HDFLAGS_SIZE          0x00000020
#define HDFLAGS_SENSE         0x00080000
#define HDFLAGS_REQUIRES      0x00100000
#define HDFLAGS_PROVIDES      0x00200000
#define HDFLAGS_OBSOLETES     0x00400000
#define HDFLAGS_CONFLICTS     0x00800000
#define HDFLAGS_FILES         0x01000000
#define HDFLAGS_CONFFILES     0x02000000


char *get_name(Header header, int_32 tag) {
  int_32 type, count;
  char *name;

  headerGetEntry(header, tag, &type, (void **) &name, &count);
  return name;
}

int get_int(Header header, int_32 tag) {
  int_32 type, count;
  int *i;

  headerGetEntry(header, tag, &type, (void **) &i, &count);
  return *i;
}

int get_bflag(AV* flag) {
  int bflag = 0;
  int flag_len;
  SV** ret;
  STRLEN len;
  char* str;
  int i;

  flag_len = av_len(flag);
  for (i = 0; i <= flag_len; ++i) {
    ret = av_fetch(flag, i, 0); if (!ret) continue;
    str = SvPV(*ret, len);

    switch (len) {
    case 4:
      if (!strncmp(str, "name", 4))      bflag |= HDFLAGS_NAME;
      else if (!strncmp(str, "arch", 4)) bflag |= HDFLAGS_ARCH;
      else if (!strncmp(str, "size", 4)) bflag |= HDFLAGS_SIZE;
      break;
    case 5:
      if (!strncmp(str, "group", 5))      bflag |= HDFLAGS_GROUP;
      else if (!strncmp(str, "sense", 5)) bflag |= HDFLAGS_SENSE;
      else if (!strncmp(str, "files", 5)) bflag |= HDFLAGS_FILES;
      break;
    case 7:
      if (!strncmp(str, "version", 7))      bflag |= HDFLAGS_VERSION;
      else if (!strncmp(str, "release", 7)) bflag |= HDFLAGS_RELEASE;
      break;
    case 8:
      if (!strncmp(str, "requires", 8))      bflag |= HDFLAGS_REQUIRES;
      else if (!strncmp(str, "provides", 8)) bflag |= HDFLAGS_PROVIDES;
      break;
    case 9:
      if (!strncmp(str, "obsoletes", 9))      bflag |= HDFLAGS_OBSOLETES;
      else if (!strncmp(str, "conflicts", 9)) bflag |= HDFLAGS_CONFLICTS;
      else if (!strncmp(str, "conffiles", 9)) bflag |= HDFLAGS_CONFFILES;
      break;
    }
  }
  bflag |= HDFLAGS_NAME; /* this one should always be used */

  return bflag;
}

SV *get_table_sense(Header header, int_32 tag_name, int_32 tag_flags, int_32 tag_version, HV* iprovides) {
  AV* table_sense;
  int_32 type, count;
  char **list;
  int_32 *flags;
  char **list_evr;
  int i;

  char buff[4096];
  char *p;
  int len;

  headerGetEntry(header, tag_name, &type, (void **) &list, &count);
  if (tag_flags) headerGetEntry(header, tag_flags, &type, (void **) &flags, &count);
  else flags = 0;
  if (tag_version) headerGetEntry(header, tag_version, &type, (void **) &list_evr, &count);
  else list_evr = 0;

  if (list) {
    table_sense = newAV();
    if (!table_sense) return &PL_sv_undef;

    for(i = 0; i < count; i++) {
      len = strlen(list[i]); if (len >= sizeof(buff)) continue;
      memcpy(p = buff, list[i], len + 1); p+= len;

      if (flags) {
	if (flags[i] & RPMSENSE_PREREQ) {
	  if (p - buff + 3 >= sizeof(buff)) continue;
	  memcpy(p, "[*]", 4); p += 3;
	}
	if (list_evr) {
	  if (list_evr[i]) {
	    len = strlen(list_evr[i]);
	    if (len > 0) {
	      if (p - buff + 6 + len >= sizeof(buff)) continue;
	      *p++ = '[';
	      if (flags[i] & RPMSENSE_LESS) *p++ = '<';
	      if (flags[i] & RPMSENSE_GREATER) *p++ = '>';
	      if (flags[i] & RPMSENSE_EQUAL) *p++ = '=';
	      if ((flags[i] & (RPMSENSE_LESS|RPMSENSE_EQUAL|RPMSENSE_GREATER)) == RPMSENSE_EQUAL) *p++ = '=';
	      *p++ = ' ';
	      memcpy(p, list_evr[i], len); p+= len;
	      *p++ = ']';
	      *p = '\0';
	    }
	  }
	}
      }

      /* for getting provides about required files */
      if (iprovides && buff[0] == '/')
	hv_fetch(iprovides, buff, p - buff, 1);

      av_push(table_sense, newSVpv(buff, p - buff));
    }

    return newRV_noinc((SV*)table_sense);
  }
  return &PL_sv_undef;
}

HV* get_info(Header header, int bflag, HV* provides) {
  int_32 type, count;
  char **list;
  int_32 *flags;
  SV** ret;
  STRLEN len;
  char* str;
  int i;
  SV* sv_name = newSVpv(get_name(header, RPMTAG_NAME), 0);
  HV* header_info = newHV();

  /* correct bflag according to provides hash else not really usefull */
  if (provides) bflag |= HDFLAGS_REQUIRES;

  hv_store(header_info, "name", 4, sv_name, 0);
  if (bflag & HDFLAGS_VERSION)
    hv_store(header_info, "version", 7, newSVpv(get_name(header, RPMTAG_VERSION), 0), 0);
  if (bflag & HDFLAGS_RELEASE)
    hv_store(header_info, "release", 7, newSVpv(get_name(header, RPMTAG_RELEASE), 0), 0);
  if (bflag & HDFLAGS_ARCH)
    hv_store(header_info, "arch", 4, newSVpv(get_name(header, RPMTAG_ARCH), 0), 0);
  if (bflag & HDFLAGS_GROUP)
    hv_store(header_info, "group", 5, newSVpv(get_name(header, RPMTAG_GROUP), 0), 0);
  if (bflag & HDFLAGS_SIZE)
    hv_store(header_info, "size", 4, newSViv(get_int(header, RPMTAG_SIZE)), 0);
  if (bflag & HDFLAGS_REQUIRES)
    hv_store(header_info, "requires", 8, get_table_sense(header,                 RPMTAG_REQUIRENAME,
							 bflag & HDFLAGS_SENSE ? RPMTAG_REQUIREFLAGS : 0,
							 bflag & HDFLAGS_SENSE ? RPMTAG_REQUIREVERSION : 0, provides), 0);
  if (bflag & HDFLAGS_PROVIDES)
    hv_store(header_info, "provides", 8, get_table_sense(header,                 RPMTAG_PROVIDENAME,
							 bflag & HDFLAGS_SENSE ? RPMTAG_PROVIDEFLAGS : 0,
							 bflag & HDFLAGS_SENSE ? RPMTAG_PROVIDEVERSION : 0, 0), 0);
  if (bflag & HDFLAGS_OBSOLETES)
    hv_store(header_info, "obsoletes", 9, get_table_sense(header,                 RPMTAG_OBSOLETENAME,
							  bflag & HDFLAGS_SENSE ? RPMTAG_OBSOLETEFLAGS : 0,
							  bflag & HDFLAGS_SENSE ? RPMTAG_OBSOLETEVERSION : 0, 0), 0);
  if (bflag & HDFLAGS_CONFLICTS)
    hv_store(header_info, "conflicts", 9, get_table_sense(header,                 RPMTAG_CONFLICTNAME,
							  bflag & HDFLAGS_SENSE ? RPMTAG_CONFLICTFLAGS : 0,
							  bflag & HDFLAGS_SENSE ? RPMTAG_CONFLICTVERSION : 0, 0), 0);
  if (provides || (bflag & (HDFLAGS_FILES | HDFLAGS_CONFFILES))) {
    /* at this point, there is a need to parse all files to update provides of needed files,
       or to store them. */
    AV* table_files = bflag & HDFLAGS_FILES ? newAV() : 0;
    AV* table_conffiles = bflag & HDFLAGS_CONFFILES ? newAV() : 0;
    char ** baseNames, ** dirNames;
    int_32 * dirIndexes;

    headerGetEntry(header, RPMTAG_FILEFLAGS, &type, (void **) &flags, &count);

    headerGetEntry(header, RPMTAG_OLDFILENAMES, &type, (void **) &list, &count);
    if (list) {
      for (i = 0; i < count; i++) {
	SV** isv;

	len = strlen(list[i]);

	if (provides && (isv = hv_fetch(provides, list[i], len, 0)) != 0) {
	  if (!SvROK(*isv) || SvTYPE(SvRV(*isv)) != SVt_PVAV) {
	    SV* choice_table = (SV*)newAV();
	    SvREFCNT_dec(*isv); /* drop the old as we are changing it */
	    *isv = choice_table ? newRV_noinc(choice_table) : &PL_sv_undef;
	  }
	  if (*isv != &PL_sv_undef) av_push((AV*)SvRV(*isv), SvREFCNT_inc(sv_name));
	}
	/* if (provides && hv_exists(provides, list[i], len))
	   hv_store(provides, list[i], len, newSVpv(name, 0), 0); */
	if (table_files)
	  av_push(table_files, newSVpv(list[i], len));
	if (table_conffiles && flags && flags[i] & RPMFILE_CONFIG)
	  av_push(table_conffiles, newSVpv(list[i], len));
      }
    }

    headerGetEntry(header, RPMTAG_BASENAMES, &type, (void **) &baseNames, &count);
    headerGetEntry(header, RPMTAG_DIRINDEXES, &type, (void **) &dirIndexes, NULL);
    headerGetEntry(header, RPMTAG_DIRNAMES, &type, (void **) &dirNames, NULL);
    if (baseNames && dirNames && dirIndexes) {
      char buff[4096];
      char *p;

      for(i = 0; i < count; i++) {
	SV** isv;

	len = strlen(dirNames[dirIndexes[i]]);
	if (len >= sizeof(buff)) continue;
	memcpy(p = buff, dirNames[dirIndexes[i]], len + 1); p += len;
	len = strlen(baseNames[i]);
	if (p - buff + len >= sizeof(buff)) continue;
	memcpy(p, baseNames[i], len + 1); p += len;

	if (provides && (isv = hv_fetch(provides, buff, p - buff, 0)) != 0) {
	  if (!SvROK(*isv) || SvTYPE(SvRV(*isv)) != SVt_PVAV) {
	    SV* choice_table = (SV*)newAV();
	    SvREFCNT_dec(*isv); /* drop the old as we are changing it */
	    *isv = choice_table ? newRV_noinc(choice_table) : &PL_sv_undef;
	  }
	  if (*isv != &PL_sv_undef) av_push((AV*)SvRV(*isv), SvREFCNT_inc(sv_name));
	}
	if (table_files)
	  av_push(table_files, newSVpv(buff, p - buff));
	if (table_conffiles && flags && flags[i] & RPMFILE_CONFIG)
	  av_push(table_conffiles, newSVpv(buff, p - buff));
      }
    }

    if (table_files)
      hv_store(header_info, "files", 5, newRV_noinc((SV*)table_files), 0);
    if (table_conffiles)
      hv_store(header_info, "conffiles", 9, newRV_noinc((SV*)table_conffiles), 0);
  }
  if (provides) {
    /* we have to examine provides to update the hash here. */
    headerGetEntry(header, RPMTAG_PROVIDENAME, &type, (void **) &list, &count);

    if (list) {
      for (i = 0; i < count; i++) {
	SV** isv;

	len = strlen(list[i]);

	isv = hv_fetch(provides, list[i], len, 1);
	if (!SvROK(*isv) || SvTYPE(SvRV(*isv)) != SVt_PVAV) {
	  SV* choice_table = (SV*)newAV();
	  SvREFCNT_dec(*isv); /* drop the old as we are changing it */
	  *isv = choice_table ? newRV_noinc(choice_table) : &PL_sv_undef;
	}
	if (*isv != &PL_sv_undef) av_push((AV*)SvRV(*isv), SvREFCNT_inc(sv_name));
      }
    }
  }

  return header_info;
}

void callback_empty(void) {}

MODULE = rpmtools			PACKAGE = rpmtools


void*
db_open(prefix)
  char *prefix
  CODE:
  rpmdb db;
  rpmErrorCallBackType old_cb;
  old_cb = rpmErrorSetCallback(callback_empty);
  rpmSetVerbosity(RPMMESS_FATALERROR);
  RETVAL = rpmReadConfigFiles(NULL, NULL) == 0 && rpmdbOpen(prefix, &db, O_RDONLY, 0644) == 0 ? db : NULL;
  rpmErrorSetCallback(old_cb);
  rpmSetVerbosity(RPMMESS_NORMAL);
  OUTPUT:
  RETVAL

void
db_close(db)
  void *db
  CODE:
  rpmdbClose((rpmdb)db);

void
_exit(code)
  int code

int
db_traverse_tag(db, tag, names, flags, callback)
  void *db
  char *tag
  SV *names
  SV *flags
  SV *callback
  PREINIT:
  int count = 0;
  CODE:
  if (SvROK(flags) && SvTYPE(SvRV(flags)) == SVt_PVAV &&
      SvROK(names) && SvTYPE(SvRV(names)) == SVt_PVAV) {
    AV* flags_av = (AV*)SvRV(flags);
    AV* names_av = (AV*)SvRV(names);
    int bflag = get_bflag(flags_av);
    int len = av_len(names_av);
    HV* info;
    SV** isv;
    int i, rpmtag;
    STRLEN str_len;
    char *name;
    Header header;
    rpmdbMatchIterator mi;

    if (!strcmp(tag, "name"))
      rpmtag = RPMTAG_NAME;
    else if (!strcmp(tag, "whatprovides"))
      rpmtag = RPMTAG_PROVIDENAME;
    else if (!strcmp(tag, "whatrequires"))
      rpmtag = RPMTAG_REQUIRENAME;
    else if (!strcmp(tag, "group"))
      rpmtag = RPMTAG_GROUP;
    else if (!strcmp(tag, "triggeredby"))
      rpmtag = RPMTAG_BASENAMES;
    else if (!strcmp(tag, "path"))
      rpmtag = RPMTAG_BASENAMES;
    else {
      croak("unknown tag");
      len = 0;
    }

    for (i = 0; i <= len; ++i) {
      isv = av_fetch(names_av, i, 0);
      name = SvPV(*isv, str_len);
      mi = rpmdbInitIterator((rpmdb)db, rpmtag, name, str_len);
      while (header = rpmdbNextIterator(mi)) {
	count++;
	info = get_info(header, bflag, NULL);

	if (info != 0 && callback != &PL_sv_undef && SvROK(callback)) {
	  dSP;
	  ENTER;
	  SAVETMPS;
	  PUSHMARK(SP);
	  XPUSHs(sv_2mortal(newRV_noinc((SV*)info)));
	  XPUSHs(sv_2mortal(newSVpv(name, str_len)));
	  PUTBACK;
	  call_sv(callback, G_DISCARD | G_SCALAR);
	  FREETMPS;
	  LEAVE;
	}
      }
      rpmdbFreeIterator(mi);
    }
  } else croak("bad arguments list");
  RETVAL = count;
  OUTPUT:
  RETVAL

int
db_traverse(db, flags, callback)
  void *db
  SV *flags
  SV *callback
  PREINIT:
  int count = 0;
  CODE:
  if (SvROK(flags) && SvTYPE(SvRV(flags)) == SVt_PVAV) {
    AV* flags_av = (AV*)SvRV(flags);
    int bflag = get_bflag(flags_av);
    HV* info;
    Header header;
    rpmdbMatchIterator mi;

    mi = rpmdbInitIterator(db, RPMDBI_PACKAGES, NULL, 0);
    while (header = rpmdbNextIterator(mi)) {
      info = get_info(header, bflag, NULL);

      if (info != 0 && callback != &PL_sv_undef && SvROK(callback)) {
	dSP;
	ENTER;
	SAVETMPS;
	PUSHMARK(SP);
	XPUSHs(sv_2mortal(newRV_noinc((SV*)info)));
	PUTBACK;
	call_sv(callback, G_DISCARD | G_SCALAR);
	FREETMPS;
	LEAVE;
      }
      ++count;
    }
    rpmdbFreeIterator(mi);
  } else croak("bad arguments list");
  RETVAL = count;
  OUTPUT:
  RETVAL

void
_parse_(fileno_or_rpmfile, flag, info, ...)
  SV* fileno_or_rpmfile
  SV* flag
  SV* info
  PREINIT:
  SV* provides = &PL_sv_undef;
  CODE:
  if (items > 3)
    provides = ST(3);
  if (SvROK(flag) && SvROK(info) && (provides == &PL_sv_undef || SvROK(provides))) {
    FD_t fd;
    int fd_is_hdlist;
    Header header;

    int bflag;
    AV* iflag;
    HV* iinfo;
    HV* iprovides;
    SV** ret;
    I32 flag_len;
    STRLEN len;
    char* str;
    int i;

    if (SvIOK(fileno_or_rpmfile)) {
      fd = fdDup(SvIV(fileno_or_rpmfile));
      fd_is_hdlist = 1;
    } else {
      fd = fdOpen(SvPV_nolen(fileno_or_rpmfile), O_RDONLY, 0666);
      if (fd < 0) croak("unable to open rpm file %s", SvPV_nolen(fileno_or_rpmfile));
      fd_is_hdlist = 0;
    }

    if ((SvTYPE(SvRV(flag)) != SVt_PVAV) ||
	(SvTYPE(SvRV(info)) != SVt_PVHV) ||
	provides != &PL_sv_undef && (SvTYPE(SvRV(provides)) != SVt_PVHV))
      croak("bad arguments list");

    iflag = (AV*)SvRV(flag);
    iinfo = (HV*)SvRV(info);
    iprovides = (HV*)(provides != &PL_sv_undef ? SvRV(provides) : 0);

    /* examine flag and set up iflag, which is faster to fecth out */
    bflag = get_bflag(iflag);

    /* start the big loop,
       parse all header from fileno, then extract information to store into iinfo and iprovides. */
    while (fd_is_hdlist >= 0 ? (fd_is_hdlist > 0 ?
				((header=headerRead(fd, HEADER_MAGIC_YES)) != 0) :
				((fd_is_hdlist = -1), rpmReadPackageHeader(fd, &header, &i, NULL, NULL) == 0)) : 0) {
      char *name = get_name(header, RPMTAG_NAME);
      HV* header_info = get_info(header, bflag, iprovides);

      /* once the hash header_info is built, store a reference to it
	 in iinfo.
	 note sv_name is not incremented here, it has the default value of before. */
      hv_store(iinfo, name, strlen(name), newRV_noinc((SV*)header_info), 0);

      /* dispose of some memory */
      headerFree(header);
    }
    fdClose(fd);
  } else croak("bad arguments list");