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-rw-r--r--lib/libalpm/package.c96
1 files changed, 95 insertions, 1 deletions
diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index ed6093f3..a18dc1f4 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -48,7 +48,6 @@
#include "cache.h"
#include "provide.h"
#include "handle.h"
-#include "versioncmp.h"
#include "alpm.h"
/** \addtogroup alpm_packages Package Functions
@@ -198,8 +197,103 @@ int alpm_pkg_checkmd5sum(pmpkg_t *pkg)
return(retval);
}
+/* 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);
+}
/** Compare versions.
* @param ver1 first version