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/*
This file is part of libextractor.
(C) 2002, 2003, 2008, 2009 Vidyut Samanta and Christian Grothoff
libextractor is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
libextractor is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libextractor; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "platform.h"
#include "extractor.h"
#include <stdint.h>
#include <rpm/rpmlib.h>
#include <rpm/rpmts.h>
#include <rpm/rpmlog.h>
#include <pthread.h>
#include <sys/types.h>
#include <signal.h>
/* ******************** pipe feeder ************************ */
struct PipeArgs {
const char * data;
size_t pos;
size_t size;
int pi[2];
int shutdown;
};
static void *
pipe_feeder(void * args)
{
ssize_t ret;
struct PipeArgs * p = args;
while ( (p->shutdown == 0) &&
(0 < (ret = WRITE(p->pi[1],
&p->data[p->pos],
p->size - p->pos))) )
p->pos += ret;
CLOSE(p->pi[1]);
return NULL;
}
static void
sigalrmHandler (int sig)
{
/* do nothing */
}
/* *************** real libextractor stuff ***************** */
typedef struct
{
int32_t rtype;
enum EXTRACTOR_MetaType type;
} Matches;
static Matches tests[] = {
{RPMTAG_NAME, EXTRACTOR_METATYPE_PACKAGE_NAME},
{RPMTAG_VERSION, EXTRACTOR_METATYPE_SOFTWARE_VERSION},
{RPMTAG_GROUP, EXTRACTOR_METATYPE_SECTION},
{RPMTAG_SIZE, EXTRACTOR_METATYPE_PACKAGE_INSTALLED_SIZE},
{RPMTAG_SUMMARY, EXTRACTOR_METATYPE_SUMMARY},
{RPMTAG_PACKAGER, EXTRACTOR_METATYPE_PACKAGE_MAINTAINER},
{RPMTAG_BUILDTIME, EXTRACTOR_METATYPE_CREATION_DATE},
#ifdef RPMTAG_COPYRIGHT
{RPMTAG_COPYRIGHT, EXTRACTOR_METATYPE_COPYRIGHT},
#endif
{RPMTAG_LICENSE, EXTRACTOR_METATYPE_LICENSE},
{RPMTAG_DISTRIBUTION, EXTRACTOR_METATYPE_PACKAGE_DISTRIBUTION},
{RPMTAG_BUILDHOST, EXTRACTOR_METATYPE_BUILDHOST},
{RPMTAG_VENDOR, EXTRACTOR_METATYPE_VENDOR},
{RPMTAG_OS, EXTRACTOR_METATYPE_TARGET_OS},
{RPMTAG_DESCRIPTION, EXTRACTOR_METATYPE_DESCRIPTION},
{RPMTAG_URL, EXTRACTOR_METATYPE_URL},
{RPMTAG_DISTURL, EXTRACTOR_METATYPE_URL},
{RPMTAG_RELEASE, EXTRACTOR_METATYPE_PACKAGE_VERSION},
{RPMTAG_PLATFORM, EXTRACTOR_METATYPE_TARGET_PLATFORM},
{RPMTAG_ARCH, EXTRACTOR_METATYPE_TARGET_ARCHITECTURE},
{RPMTAG_CONFLICTNAME, EXTRACTOR_METATYPE_PACKAGE_CONFLICTS},
{RPMTAG_REQUIRENAME, EXTRACTOR_METATYPE_PACKAGE_DEPENDENCY},
{RPMTAG_CONFLICTNAME, EXTRACTOR_METATYPE_PACKAGE_CONFLICTS},
{RPMTAG_PROVIDENAME, EXTRACTOR_METATYPE_PACKAGE_PROVIDES},
#if 0
{RPMTAG_CHANGELOGTEXT, EXTRACTOR_METATYPE_REVISION_HISTORY},
#endif
#if 0
/* FIXME: add support for some of these */
RPMTAG_GIF = 1012, /* x */
RPMTAG_XPM = 1013, /* x */
RPMTAG_SOURCE = 1018, /* s[] */
RPMTAG_PATCH = 1019, /* s[] */
RPMTAG_PREIN = 1023, /* s */
RPMTAG_POSTIN = 1024, /* s */
RPMTAG_PREUN = 1025, /* s */
RPMTAG_POSTUN = 1026, /* s */
RPMTAG_ICON = 1043, /* x */
RPMTAG_SOURCERPM = 1044, /* s */
RPMTAG_PROVIDENAME = 1047, /* s[] */
RPMTAG_EXCLUDEARCH = 1059, /* s[] */
RPMTAG_EXCLUDEOS = 1060, /* s[] */
RPMTAG_EXCLUSIVEARCH = 1061, /* s[] */
RPMTAG_EXCLUSIVEOS = 1062, /* s[] */
RPMTAG_TRIGGERSCRIPTS = 1065, /* s[] */
RPMTAG_TRIGGERNAME = 1066, /* s[] */
RPMTAG_TRIGGERVERSION = 1067, /* s[] */
RPMTAG_VERIFYSCRIPT = 1079, /* s */
RPMTAG_PREINPROG = 1085, /* s */
RPMTAG_POSTINPROG = 1086, /* s */
RPMTAG_PREUNPROG = 1087, /* s */
RPMTAG_POSTUNPROG = 1088, /* s */
RPMTAG_BUILDARCHS = 1089, /* s[] */
RPMTAG_OBSOLETENAME = 1090, /* s[] */
RPMTAG_VERIFYSCRIPTPROG = 1091, /* s */
RPMTAG_TRIGGERSCRIPTPROG = 1092, /* s[] */
RPMTAG_COOKIE = 1094, /* s */
RPMTAG_FILELANGS = 1097, /* s[] */
RPMTAG_PREFIXES = 1098, /* s[] */
RPMTAG_INSTPREFIXES = 1099, /* s[] */
RPMTAG_PROVIDEVERSION = 1113, /* s[] */
RPMTAG_OBSOLETEVERSION = 1115, /* s[] */
RPMTAG_BASENAMES = 1117, /* s[] */
RPMTAG_DIRNAMES = 1118, /* s[] */
RPMTAG_OPTFLAGS = 1122, /* s */
RPMTAG_PAYLOADFORMAT = 1124, /* s */
RPMTAG_PAYLOADCOMPRESSOR = 1125, /* s */
RPMTAG_PAYLOADFLAGS = 1126, /* s */
RPMTAG_CLASSDICT = 1142, /* s[] */
RPMTAG_SOURCEPKGID = 1146, /* x */
RPMTAG_PRETRANS = 1151, /* s */
RPMTAG_POSTTRANS = 1152, /* s */
RPMTAG_PRETRANSPROG = 1153, /* s */
RPMTAG_POSTTRANSPROG = 1154, /* s */
RPMTAG_DISTTAG = 1155, /* s */
#endif
{0, 0},
};
static int discardCB(rpmlogRec rec, void *ctx) {
/* do nothing! */
return 0;
}
/* mimetype = application/x-rpm */
int
EXTRACTOR_rpm_extract (const char *data,
size_t size,
EXTRACTOR_MetaDataProcessor proc,
void *proc_cls,
const char *options)
{
struct PipeArgs parg;
pthread_t pthr;
void * unused;
const char *str;
Header hdr;
HeaderIterator hi;
rpmtd p;
int i;
FD_t fdi;
rpmRC rc;
rpmts ts;
struct sigaction sig;
struct sigaction old;
if (0 != pipe(parg.pi))
return 0;
fdi = NULL;
parg.data = data;
parg.pos = 0;
parg.size = size;
parg.shutdown = 0;
if (0 != pthread_create(&pthr,
NULL,
&pipe_feeder,
&parg))
{
CLOSE(parg.pi[0]);
CLOSE(parg.pi[1]);
return 0;
}
rpmlogSetCallback(&discardCB, NULL);
fdi = fdDup(parg.pi[0]);
ts = rpmtsCreate();
rc = rpmReadPackageFile (ts, fdi, "GNU libextractor", &hdr);
switch (rc)
{
case RPMRC_OK:
case RPMRC_NOKEY:
case RPMRC_NOTTRUSTED:
break;
case RPMRC_NOTFOUND:
case RPMRC_FAIL:
default:
goto END;
}
if (0 != proc (proc_cls,
"rpm",
EXTRACTOR_METATYPE_MIMETYPE,
EXTRACTOR_METAFORMAT_UTF8,
"text/plain",
"application/x-rpm",
strlen ("application/x-rpm") +1))
return 1;
hi = headerInitIterator (hdr);
p = rpmtdNew ();
while (1 == headerNext (hi, p))
{
i = 0;
while (tests[i].rtype != 0)
{
if (tests[i].rtype == p->tag)
{
switch (p->type)
{
case RPM_STRING_ARRAY_TYPE:
case RPM_I18NSTRING_TYPE:
case RPM_STRING_TYPE:
while (NULL != (str = rpmtdNextString (p)))
{
if (0 != proc (proc_cls,
"rpm",
tests[i].type,
EXTRACTOR_METAFORMAT_UTF8,
"text/plain",
str,
strlen (str) +1))
return 1;
}
break;
case RPM_INT32_TYPE:
{
if (p->tag == RPMTAG_BUILDTIME)
{
char tmp[30];
ctime_r ((time_t *) p, tmp);
tmp[strlen (tmp) - 1] = '\0'; /* eat linefeed */
if (0 != proc (proc_cls,
"rpm",
tests[i].type,
EXTRACTOR_METAFORMAT_UTF8,
"text/plain",
tmp,
strlen (tmp) +1))
return 1;
}
else
{
char tmp[14];
sprintf (tmp, "%d", *(int *) p);
if (0 != proc (proc_cls,
"rpm",
tests[i].type,
EXTRACTOR_METAFORMAT_UTF8,
"text/plain",
tmp,
strlen (tmp) +1))
return 1;
}
break;
}
default:
break;
}
}
i++;
}
}
rpmtdFree (p);
headerFreeIterator (hi);
headerFree (hdr);
rpmtsFree(ts);
END:
/* make sure SIGALRM does not kill us */
memset (&sig, 0, sizeof (struct sigaction));
memset (&old, 0, sizeof (struct sigaction));
sig.sa_flags = SA_NODEFER;
sig.sa_handler = &sigalrmHandler;
sigaction (SIGALRM, &sig, &old);
parg.shutdown = 1;
pthread_kill(pthr, SIGALRM);
pthread_join(pthr, &unused);
sigaction (SIGALRM, &old, &sig);
Fclose(fdi);
CLOSE(parg.pi[0]);
return 0;
}
/* end of rpm_extractor.c */
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