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| -rw-r--r-- | lib/libalpm/versioncmp.c | 295 |
diff --git a/lib/libalpm/versioncmp.c b/lib/libalpm/versioncmp.c deleted file mode 100644 index 7e22ec9c..00000000 --- a/lib/libalpm/versioncmp.c +++ /dev/null @@ -1,295 +0,0 @@ -/* - * 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> - -/* libalpm */ -#include "versioncmp.h" -#include "alpm_list.h" -#include "alpm.h" -#include "log.h" -#include "util.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 _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 && strlen(rel1) && strlen(rel2)) return(_alpm_versioncmp(rel1, rel2)); - return(0); - } - - return(*one ? 1 : -1); -} - -int SYMEXPORT 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(alpm_pkg_get_provides(pkg), dep->name)) { - if(dep->mod == PM_DEP_MOD_ANY) { - equal = 1; - } else { - int cmp = _alpm_versioncmp(alpm_pkg_get_version(pkg), 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"), - alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg), - mod, dep->name, dep->version, - (equal ? "match" : "no match")); - } else { - _alpm_log(PM_LOG_DEBUG, _("depcmp: %s-%s %s %s => %s"), - alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg), - mod, dep->name, - (equal ? "match" : "no match")); - } - } - - return equal; -} - - -/* vim: set ts=2 sw=2 noet: */ |