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*** empty log message *** 

CVS patchset: 1672
CVS date: 1997/05/30 21:14:51
This commit is contained in:
ewt 1997-05-30 21:14:51 +00:00
parent eee6452dc0
commit 0965d6236e
1 changed files with 121 additions and 0 deletions
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121
lib/lookup.c Normal file
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#include "miscfn.h"
#if HAVE_ALLOCA_H
# include <alloca.h>
#endif
#include <string.h>
#include "intl.h"
#include "rpmlib.h"
static int findMatches(rpmdb db, char * name, char * version, char * release,
dbiIndexSet * matches);
/* 0 found matches */
/* 1 no matches */
/* 2 error */
int rpmdbFindByHeader(rpmdb db, Header h, dbiIndexSet * matches) {
char * name, * version, * release;
headerGetEntry(h, RPMTAG_NAME, NULL, (void **) &name, NULL);
headerGetEntry(h, RPMTAG_VERSION, NULL, (void **) &version, NULL);
headerGetEntry(h, RPMTAG_RELEASE, NULL, (void **) &release, NULL);
return findMatches(db, name, version, release, matches);
}
/* 0 found matches */
/* 1 no matches */
/* 2 error */
int rpmdbFindByLabel(rpmdb db, char * arg, dbiIndexSet * matches) {
char * localarg, * chptr;
char * release;
int rc;
if (!strlen(arg)) return 1;
/* did they give us just a name? */
rc = findMatches(db, arg, NULL, NULL, matches);
if (rc != 1) return rc;
/* maybe a name and a release */
localarg = alloca(strlen(arg) + 1);
strcpy(localarg, arg);
chptr = (localarg + strlen(localarg)) - 1;
while (chptr > localarg && *chptr != '-') chptr--;
if (chptr == localarg) return 1;
*chptr = '\0';
rc = findMatches(db, localarg, chptr + 1, NULL, matches);
if (rc != 1) return rc;
/* how about name-version-release? */
release = chptr + 1;
while (chptr > localarg && *chptr != '-') chptr--;
if (chptr == localarg) return 1;
*chptr = '\0';
return findMatches(db, localarg, chptr + 1, release, matches);
}
/* 0 found matches */
/* 1 no matches */
/* 2 error */
static int findMatches(rpmdb db, char * name, char * version, char * release,
dbiIndexSet * matches) {
int gotMatches;
int rc;
int i;
char * pkgRelease, * pkgVersion;
int count, type;
int goodRelease, goodVersion;
Header h;
if ((rc = rpmdbFindPackage(db, name, matches))) {
if (rc == -1) return 2; else return 1;
}
if (!version && !release) return 0;
gotMatches = 0;
/* make sure the version and releases match */
for (i = 0; i < matches->count; i++) {
if (matches->recs[i].recOffset) {
h = rpmdbGetRecord(db, matches->recs[i].recOffset);
if (!h) {
rpmError(RPMERR_DBCORRUPT,
_("cannot read header at %d for lookup"),
matches->recs[i].recOffset);
dbiFreeIndexRecord(*matches);
return 2;
}
headerGetEntry(h, RPMTAG_VERSION, &type, (void **) &pkgVersion,
&count);
headerGetEntry(h, RPMTAG_RELEASE, &type, (void **) &pkgRelease,
&count);
goodRelease = goodVersion = 1;
if (release && strcmp(release, pkgRelease)) goodRelease = 0;
if (version && strcmp(version, pkgVersion)) goodVersion = 0;
if (goodRelease && goodVersion)
gotMatches = 1;
else
matches->recs[i].recOffset = 0;
}
}
if (!gotMatches) {
dbiFreeIndexRecord(*matches);
return 1;
}
return 0;
}