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transaction.c: further decideConfigFate() tweaks

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This commit is contained in:
Alexey Tourbin 2009-03-09 10:38:51 +03:00
parent 0ee67602ee
commit ebf4093293
1 changed files with 15 additions and 29 deletions
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40
lib/transaction.c
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@ -826,37 +826,23 @@ static fileAction decideConfigFate(TFI_t dbfi, const int dbix,
else if (dbWhat != LINK && dbWhat != REG)
return FA_CREATE;
const char *dbAttr, *newAttr;
char buffer[1024];
if (dbWhat == REG) {
int rc = mdfile(filespec, buffer);
if (rc) {
/* assume the file has been removed, don't freak */
return FA_CREATE;
}
dbAttr = dbfi->fmd5s[dbix];
newAttr = newfi->fmd5s[newix];
} else /* dbWhat == LINK */ {
memset(buffer, 0, sizeof(buffer));
ssize_t len = readlink(filespec, buffer, sizeof(buffer) - 1);
if (len < 0) {
/* assume the file has been removed, don't freak */
return FA_CREATE;
}
dbAttr = dbfi->flinks[dbix];
newAttr = newfi->flinks[newix];
}
char mdsum[50];
if (mdfile(filespec, mdsum) != 0)
return FA_CREATE; /* assume file has been removed */
/* this order matters - we'd prefer to CREATE the file if at all
possible in case something else (like the timestamp) has changed */
if (!strcmp(dbAttr, buffer)) {
/* this config file has never been modified, so just replace it */
if (strcmp(dbfi->fmd5s[dbix], mdsum) == 0)
return FA_CREATE; /* unmodified config file, replace. */
if (strcmp(dbfi->fmd5s[dbix], newfi->fmd5s[newix]) == 0)
return FA_SKIP; /* identical file, don't bother. */
} else /* dbWhat == LINK */ {
char linkto[PATH_MAX+1] = "";
if (readlink(filespec, linkto, sizeof(linkto) - 1) < 0)
return FA_CREATE;
}
if (!strcmp(dbAttr, newAttr)) {
/* this file is the same in all versions of this package */
if (strcmp(dbfi->flinks[dbix], linkto) == 0)
return FA_CREATE;
if (strcmp(dbfi->flinks[dbix], newfi->flinks[newix]) == 0)
return FA_SKIP;
}