rpm/lib/rpmps.c

412 lines
8.9 KiB
C

/**
* \file lib/rpmps.c
*/
#include "system.h"
#include <rpm/rpmstring.h>
#include <rpm/rpmps.h>
#include "debug.h"
/**
*/
struct rpmProblem_s {
char * pkgNEVR;
char * altNEVR;
fnpyKey key;
rpmProblemType type;
int ignoreProblem;
char * str1;
unsigned long ulong1;
};
/**
*/
struct rpmps_s {
int numProblems; /*!< Current probs array size. */
int numProblemsAlloced; /*!< Allocated probs array size. */
rpmProblem *probs; /*!< Array of pointers to specific problems. */
int nrefs; /*!< Reference count. */
};
struct rpmpsi_s {
int ix;
rpmps ps;
};
int _rpmps_debug = 0;
rpmps rpmpsUnlink(rpmps ps, const char * msg)
{
if (_rpmps_debug > 0 && msg != NULL)
fprintf(stderr, "--> ps %p -- %d %s\n", ps, ps->nrefs, msg);
ps->nrefs--;
return ps;
}
rpmps rpmpsLink(rpmps ps, const char * msg)
{
ps->nrefs++;
if (_rpmps_debug > 0 && msg != NULL)
fprintf(stderr, "--> ps %p ++ %d %s\n", ps, ps->nrefs, msg);
return ps;
}
int rpmpsNumProblems(rpmps ps)
{
int numProblems = 0;
if (ps && ps->probs)
numProblems = ps->numProblems;
return numProblems;
}
rpmpsi rpmpsInitIterator(rpmps ps)
{
rpmpsi psi = NULL;
if (ps != NULL) {
psi = xcalloc(1, sizeof(*psi));
psi->ps = rpmpsLink(ps, RPMDBG_M("rpmpsInitIterator"));
psi->ix = -1;
}
return psi;
}
rpmpsi rpmpsFreeIterator(rpmpsi psi)
{
if (psi != NULL) {
rpmpsUnlink(psi->ps, RPMDBG_M("rpmpsFreeIterator"));
free(psi);
psi = NULL;
}
return psi;
}
int rpmpsNextIterator(rpmpsi psi)
{
int i = -1;
if (psi != NULL && ++psi->ix >= 0) {
if (psi->ix < rpmpsNumProblems(psi->ps)) {
i = psi->ix;
} else {
psi->ix = -1;
}
}
return i;
}
rpmProblem rpmpsGetProblem(rpmpsi psi)
{
rpmProblem *p = NULL;
if (psi != NULL && psi->ix >= 0 && psi->ix < rpmpsNumProblems(psi->ps)) {
p = psi->ps->probs + psi->ix;
}
return *p;
}
rpmps rpmpsCreate(void)
{
rpmps ps = xcalloc(1, sizeof(*ps));
return rpmpsLink(ps, RPMDBG_M("rpmpsCreate"));
}
rpmps rpmpsFree(rpmps ps)
{
if (ps == NULL) return NULL;
ps = rpmpsUnlink(ps, RPMDBG_M("rpmpsFree"));
if (ps->nrefs > 0)
return NULL;
if (ps->probs) {
rpmpsi psi = rpmpsInitIterator(ps);
while (rpmpsNextIterator(psi) >= 0) {
rpmProblemFree(rpmpsGetProblem(psi));
}
rpmpsFreeIterator(psi);
ps->probs = _free(ps->probs);
}
ps = _free(ps);
return NULL;
}
void rpmpsAppendProblem(rpmps ps, rpmProblem prob)
{
rpmProblem *p = NULL;
if (ps == NULL) return;
if (ps->numProblems == ps->numProblemsAlloced) {
if (ps->numProblemsAlloced)
ps->numProblemsAlloced *= 2;
else
ps->numProblemsAlloced = 2;
ps->probs = xrealloc(ps->probs,
ps->numProblemsAlloced * sizeof(ps->probs));
}
p = ps->probs + ps->numProblems;
ps->numProblems++;
*p = prob;
}
void rpmpsAppend(rpmps ps, rpmProblemType type,
const char * pkgNEVR, fnpyKey key,
const char * dn, const char * bn,
const char * altNEVR, unsigned long ulong1)
{
rpmProblem p = NULL;
if (ps == NULL) return;
p = rpmProblemCreate(type, pkgNEVR, key, dn, bn, altNEVR, ulong1);
rpmpsAppendProblem(ps, p);
}
#define XSTRCMP(a, b) ((!(a) && !(b)) || ((a) && (b) && !strcmp((a), (b))))
/* XXX TODO: implement with iterators */
int rpmpsTrim(rpmps ps, rpmps filter)
{
rpmProblem *t;
rpmProblem *f;
int gotProblems = 0;
if (ps == NULL || ps->numProblems == 0)
return 0;
if (filter == NULL)
return (ps->numProblems == 0 ? 0 : 1);
t = ps->probs;
f = filter->probs;
while ((f - filter->probs) < filter->numProblems) {
if (!(*f)->ignoreProblem) {
f++;
continue;
}
while ((t - ps->probs) < ps->numProblems) {
/* LCL: looks good to me <shrug> */
if ((*f)->type == (*t)->type && (*t)->key == (*f)->key &&
XSTRCMP((*f)->str1, (*t)->str1))
break;
t++;
gotProblems = 1;
}
/* XXX This can't happen, but let's be sane in case it does. */
if ((t - ps->probs) == ps->numProblems)
break;
(*t)->ignoreProblem = (*f)->ignoreProblem;
t++, f++;
}
if ((t - ps->probs) < ps->numProblems)
gotProblems = 1;
return gotProblems;
}
rpmProblem rpmProblemCreate(rpmProblemType type,
const char * pkgNEVR,
fnpyKey key,
const char * dn, const char * bn,
const char * altNEVR,
unsigned long ulong1)
{
rpmProblem p = xcalloc(1, sizeof(*p));
char *t;
p->type = type;
p->key = key;
p->ulong1 = ulong1;
p->ignoreProblem = 0;
p->pkgNEVR = (pkgNEVR ? xstrdup(pkgNEVR) : NULL);
p->altNEVR = (altNEVR ? xstrdup(altNEVR) : NULL);
p->str1 = NULL;
if (dn != NULL || bn != NULL) {
t = xcalloc(1, (dn != NULL ? strlen(dn) : 0) +
(bn != NULL ? strlen(bn) : 0) + 1);
p->str1 = t;
if (dn != NULL) t = stpcpy(t, dn);
if (bn != NULL) t = stpcpy(t, bn);
}
return p;
}
rpmProblem rpmProblemFree(rpmProblem prob)
{
prob->pkgNEVR = _free(prob->pkgNEVR);
prob->altNEVR = _free(prob->altNEVR);
prob->str1 = _free(prob->str1);
prob = _free(prob);
return NULL;
}
const char * rpmProblemGetPkgNEVR(const rpmProblem p)
{
return (p->pkgNEVR);
}
const char * rpmProblemGetAltNEVR(const rpmProblem p)
{
return (p->altNEVR);
}
fnpyKey rpmProblemGetKey(const rpmProblem p)
{
return (p->key);
}
rpmProblemType rpmProblemGetType(const rpmProblem p)
{
return (p->type);
}
const char * rpmProblemGetStr(const rpmProblem p)
{
return (p->str1);
}
unsigned long rpmProblemGetLong(const rpmProblem p)
{
return (p->ulong1);
}
char * rpmProblemString(const rpmProblem prob)
{
const char * pkgNEVR = (prob->pkgNEVR ? prob->pkgNEVR : "?pkgNEVR?");
const char * altNEVR = (prob->altNEVR ? prob->altNEVR : "? ?altNEVR?");
const char * str1 = (prob->str1 ? prob->str1 : N_("different"));
char * buf = NULL;
int rc;
switch (prob->type) {
case RPMPROB_BADARCH:
rc = rasprintf(&buf, _("package %s is intended for a %s architecture"),
pkgNEVR, str1);
break;
case RPMPROB_BADOS:
rc = rasprintf(&buf,
_("package %s is intended for a %s operating system"),
pkgNEVR, str1);
break;
case RPMPROB_PKG_INSTALLED:
rc = rasprintf(&buf, _("package %s is already installed"),
pkgNEVR);
break;
case RPMPROB_BADRELOCATE:
rc = rasprintf(&buf, _("path %s in package %s is not relocatable"),
str1, pkgNEVR);
break;
case RPMPROB_NEW_FILE_CONFLICT:
rc = rasprintf(&buf,
_("file %s conflicts between attempted installs of %s and %s"),
str1, pkgNEVR, altNEVR);
break;
case RPMPROB_FILE_CONFLICT:
rc = rasprintf(&buf,
_("file %s from install of %s conflicts with file from package %s"),
str1, pkgNEVR, altNEVR);
break;
case RPMPROB_OLDPACKAGE:
rc = rasprintf(&buf,
_("package %s (which is newer than %s) is already installed"),
altNEVR, pkgNEVR);
break;
case RPMPROB_DISKSPACE:
rc = rasprintf(&buf,
_("installing package %s needs %ld%cB on the %s filesystem"),
pkgNEVR,
prob->ulong1 > (1024*1024)
? (prob->ulong1 + 1024 * 1024 - 1) / (1024 * 1024)
: (prob->ulong1 + 1023) / 1024,
prob->ulong1 > (1024*1024) ? 'M' : 'K',
str1);
break;
case RPMPROB_DISKNODES:
rc = rasprintf(&buf,
_("installing package %s needs %ld inodes on the %s filesystem"),
pkgNEVR, (long)prob->ulong1, str1);
break;
case RPMPROB_REQUIRES:
rc = rasprintf(&buf, _("%s is needed by %s%s"),
altNEVR+2,
(prob->ulong1 ? "" : _("(installed) ")), pkgNEVR);
break;
case RPMPROB_CONFLICT:
rc = rasprintf(&buf, _("%s conflicts with %s%s"),
altNEVR+2,
(prob->ulong1 ? "" : _("(installed) ")), pkgNEVR);
break;
default:
rc = rasprintf(&buf,
_("unknown error %d encountered while manipulating package %s"),
prob->type, pkgNEVR);
break;
}
return buf;
}
static int sameProblem(const rpmProblem ap, const rpmProblem bp)
{
if (ap->type != bp->type)
return 1;
if (ap->pkgNEVR)
if (bp->pkgNEVR && strcmp(ap->pkgNEVR, bp->pkgNEVR))
return 1;
if (ap->altNEVR)
if (bp->altNEVR && strcmp(ap->altNEVR, bp->altNEVR))
return 1;
if (ap->str1)
if (bp->str1 && strcmp(ap->str1, bp->str1))
return 1;
if (ap->ulong1 != bp->ulong1)
return 1;
return 0;
}
void rpmpsPrint(FILE *fp, rpmps ps)
{
char * msg = NULL;
rpmpsi psi = NULL;
int i;
if (ps == NULL || ps->probs == NULL || ps->numProblems <= 0)
return;
if (fp == NULL)
fp = stderr;
psi = rpmpsInitIterator(ps);
while ((i = rpmpsNextIterator(psi)) >= 0) {
int j;
rpmProblem p = rpmpsGetProblem(psi);
if (p->ignoreProblem)
continue;
rpmpsi psif = rpmpsInitIterator(ps);
/* Filter already displayed problems. */
while ((j = rpmpsNextIterator(psif)) < i) {
if (!sameProblem(p, rpmpsGetProblem(psif)))
break;
}
rpmpsFreeIterator(psif);
if (j < i)
continue;
msg = rpmProblemString(p);
fprintf(fp, "\t%s\n", msg);
msg = _free(msg);
}
psi = rpmpsFreeIterator(psi);
}