mirror of
https://github.com/moparisthebest/pacman
synced 2024-10-31 15:45:03 -04:00
da648bc24c
* ALPM_LOG_FUNCTION macro and all the great work to add this macro everywhere
292 lines
7.5 KiB
C
292 lines
7.5 KiB
C
/*
|
|
* versioncmp.c
|
|
*
|
|
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
|
|
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
|
|
* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
|
|
*
|
|
* This program 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 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <libintl.h>
|
|
/* pacman */
|
|
#include "alpm.h"
|
|
#include "log.h"
|
|
#include "util.h"
|
|
#include "alpm_list.h"
|
|
#include "versioncmp.h"
|
|
|
|
#ifndef HAVE_STRVERSCMP
|
|
/* GNU's strverscmp() function, taken from glibc 2.3.2 sources
|
|
*/
|
|
|
|
/* Compare strings while treating digits characters numerically.
|
|
Copyright (C) 1997, 2002 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Jean-François Bignolles <bignolle@ecoledoc.ibp.fr>, 1997.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* states: S_N: normal, S_I: comparing integral part, S_F: comparing
|
|
fractionnal parts, S_Z: idem but with leading Zeroes only */
|
|
#define S_N 0x0
|
|
#define S_I 0x4
|
|
#define S_F 0x8
|
|
#define S_Z 0xC
|
|
|
|
/* result_type: CMP: return diff; LEN: compare using len_diff/diff */
|
|
#define CMP 2
|
|
#define LEN 3
|
|
|
|
/* Compare S1 and S2 as strings holding indices/version numbers,
|
|
returning less than, equal to or greater than zero if S1 is less than,
|
|
equal to or greater than S2 (for more info, see the texinfo doc).
|
|
*/
|
|
|
|
static int strverscmp (s1, s2)
|
|
const char *s1;
|
|
const char *s2;
|
|
{
|
|
const unsigned char *p1 = (const unsigned char *) s1;
|
|
const unsigned char *p2 = (const unsigned char *) s2;
|
|
unsigned char c1, c2;
|
|
int state;
|
|
int diff;
|
|
|
|
/* Symbol(s) 0 [1-9] others (padding)
|
|
Transition (10) 0 (01) d (00) x (11) - */
|
|
static const unsigned int next_state[] =
|
|
{
|
|
/* state x d 0 - */
|
|
/* S_N */ S_N, S_I, S_Z, S_N,
|
|
/* S_I */ S_N, S_I, S_I, S_I,
|
|
/* S_F */ S_N, S_F, S_F, S_F,
|
|
/* S_Z */ S_N, S_F, S_Z, S_Z
|
|
};
|
|
|
|
static const int result_type[] =
|
|
{
|
|
/* state x/x x/d x/0 x/- d/x d/d d/0 d/-
|
|
0/x 0/d 0/0 0/- -/x -/d -/0 -/- */
|
|
|
|
/* S_N */ CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
|
|
CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
|
|
/* S_I */ CMP, -1, -1, CMP, +1, LEN, LEN, CMP,
|
|
+1, LEN, LEN, CMP, CMP, CMP, CMP, CMP,
|
|
/* S_F */ CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
|
|
CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
|
|
/* S_Z */ CMP, +1, +1, CMP, -1, CMP, CMP, CMP,
|
|
-1, CMP, CMP, CMP
|
|
};
|
|
|
|
if (p1 == p2)
|
|
return 0;
|
|
|
|
c1 = *p1++;
|
|
c2 = *p2++;
|
|
/* Hint: '0' is a digit too. */
|
|
state = S_N | ((c1 == '0') + (isdigit (c1) != 0));
|
|
|
|
while ((diff = c1 - c2) == 0 && c1 != '\0')
|
|
{
|
|
state = next_state[state];
|
|
c1 = *p1++;
|
|
c2 = *p2++;
|
|
state |= (c1 == '0') + (isdigit (c1) != 0);
|
|
}
|
|
|
|
state = result_type[state << 2 | (((c2 == '0') + (isdigit (c2) != 0)))];
|
|
|
|
switch (state)
|
|
{
|
|
case CMP:
|
|
return diff;
|
|
|
|
case LEN:
|
|
while (isdigit (*p1++))
|
|
if (!isdigit (*p2++))
|
|
return 1;
|
|
|
|
return isdigit (*p2) ? -1 : diff;
|
|
|
|
default:
|
|
return state;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
/* this function was taken from rpm 4.0.4 and rewritten */
|
|
int SYMEXPORT alpm_versioncmp(const char *a, const char *b)
|
|
{
|
|
char str1[64], str2[64];
|
|
char *ptr1, *ptr2;
|
|
char *one, *two;
|
|
char *rel1 = NULL, *rel2 = NULL;
|
|
char oldch1, oldch2;
|
|
int is1num, is2num;
|
|
int rc;
|
|
|
|
ALPM_LOG_FUNC;
|
|
|
|
if(!strcmp(a,b)) {
|
|
return(0);
|
|
}
|
|
|
|
strncpy(str1, a, 64);
|
|
str1[63] = 0;
|
|
strncpy(str2, b, 64);
|
|
str2[63] = 0;
|
|
|
|
/* lose the release number */
|
|
for(one = str1; *one && *one != '-'; one++);
|
|
if(one) {
|
|
*one = '\0';
|
|
rel1 = ++one;
|
|
}
|
|
for(two = str2; *two && *two != '-'; two++);
|
|
if(two) {
|
|
*two = '\0';
|
|
rel2 = ++two;
|
|
}
|
|
|
|
one = str1;
|
|
two = str2;
|
|
|
|
while(*one || *two) {
|
|
while(*one && !isalnum((int)*one)) one++;
|
|
while(*two && !isalnum((int)*two)) two++;
|
|
|
|
ptr1 = one;
|
|
ptr2 = two;
|
|
|
|
/* find the next segment for each string */
|
|
if(isdigit((int)*ptr1)) {
|
|
is1num = 1;
|
|
while(*ptr1 && isdigit((int)*ptr1)) ptr1++;
|
|
} else {
|
|
is1num = 0;
|
|
while(*ptr1 && isalpha((int)*ptr1)) ptr1++;
|
|
}
|
|
if(isdigit((int)*ptr2)) {
|
|
is2num = 1;
|
|
while(*ptr2 && isdigit((int)*ptr2)) ptr2++;
|
|
} else {
|
|
is2num = 0;
|
|
while(*ptr2 && isalpha((int)*ptr2)) ptr2++;
|
|
}
|
|
|
|
oldch1 = *ptr1;
|
|
*ptr1 = '\0';
|
|
oldch2 = *ptr2;
|
|
*ptr2 = '\0';
|
|
|
|
/* see if we ran out of segments on one string */
|
|
if(one == ptr1 && two != ptr2) {
|
|
return(is2num ? -1 : 1);
|
|
}
|
|
if(one != ptr1 && two == ptr2) {
|
|
return(is1num ? 1 : -1);
|
|
}
|
|
|
|
/* see if we have a type mismatch (ie, one is alpha and one is digits) */
|
|
if(is1num && !is2num) return(1);
|
|
if(!is1num && is2num) return(-1);
|
|
|
|
if(is1num) while(*one == '0') one++;
|
|
if(is2num) while(*two == '0') two++;
|
|
|
|
rc = strverscmp(one, two);
|
|
if(rc) return(rc);
|
|
|
|
*ptr1 = oldch1;
|
|
*ptr2 = oldch2;
|
|
one = ptr1;
|
|
two = ptr2;
|
|
}
|
|
|
|
if((!*one) && (!*two)) {
|
|
/* compare release numbers */
|
|
if(rel1 && rel2) return(alpm_versioncmp(rel1, rel2));
|
|
return(0);
|
|
}
|
|
|
|
return(*one ? 1 : -1);
|
|
}
|
|
|
|
int _alpm_depcmp(pmpkg_t *pkg, pmdepend_t *dep)
|
|
{
|
|
int equal = 0;
|
|
|
|
ALPM_LOG_FUNC;
|
|
|
|
if(strcmp(pkg->name, dep->name) == 0
|
|
|| alpm_list_find_str(pkg->provides, dep->name)) {
|
|
if(dep->mod == PM_DEP_MOD_ANY) {
|
|
equal = 1;
|
|
} else {
|
|
int cmp = alpm_versioncmp(pkg->version, dep->version);
|
|
switch(dep->mod) {
|
|
case PM_DEP_MOD_EQ: equal = (cmp == 0); break;
|
|
case PM_DEP_MOD_GE: equal = (cmp >= 0); break;
|
|
case PM_DEP_MOD_LE: equal = (cmp <= 0); break;
|
|
default: equal = 1; break;
|
|
}
|
|
}
|
|
|
|
char *mod = "~=";
|
|
switch(dep->mod) {
|
|
case PM_DEP_MOD_EQ: mod = "=="; break;
|
|
case PM_DEP_MOD_GE: mod = ">="; break;
|
|
case PM_DEP_MOD_LE: mod = "<="; break;
|
|
default: break;
|
|
}
|
|
|
|
if(strlen(dep->version) > 0) {
|
|
_alpm_log(PM_LOG_DEBUG, _("depcmp: %s-%s %s %s-%s => %s"),
|
|
pkg->name, pkg->version, mod, dep->name, dep->version,
|
|
(equal ? "match" : "no match"));
|
|
} else {
|
|
_alpm_log(PM_LOG_DEBUG, _("depcmp: %s-%s %s %s => %s"),
|
|
pkg->name, pkg->version, mod, dep->name,
|
|
(equal ? "match" : "no match"));
|
|
}
|
|
}
|
|
|
|
return equal;
|
|
}
|
|
|
|
|
|
/* vim: set ts=2 sw=2 noet: */
|