From 0c2edbdd4992f3107d7a2bd600829fcb3f344d48 Mon Sep 17 00:00:00 2001 From: Allan McRae Date: Thu, 6 Dec 2012 22:35:22 +1000 Subject: It turns out we do care about directories... This is a bug that has been around since at least 2007. On a package upgrade (either by -S or -U) a new directory could overwrite any file. This is caused by the filelist difference calculation ignoring all directories and thus no new directories were checked for conflicting files on the filesystem. Signed-off-by: Allan McRae --- lib/libalpm/filelist.c | 28 +++++++++------------------- 1 file changed, 9 insertions(+), 19 deletions(-) (limited to 'lib/libalpm') diff --git a/lib/libalpm/filelist.c b/lib/libalpm/filelist.c index bf7645b8..f884e6a8 100644 --- a/lib/libalpm/filelist.c +++ b/lib/libalpm/filelist.c @@ -228,34 +228,24 @@ alpm_list_t *_alpm_filelist_difference(alpm_filelist_t *filesA, alpm_file_t *fileA = filesA->files + ctrA; const char *strA = filesA->resolved_path[ctrA]; const char *strB = filesB->resolved_path[ctrB]; - /* skip directories, we don't care about them */ - if(strA[strlen(strA)-1] == '/') { + + int cmp = strcmp(strA, strB); + if(cmp < 0) { + /* item only in filesA, qualifies as a difference */ + ret = alpm_list_add(ret, fileA); ctrA++; - } else if(strB[strlen(strB)-1] == '/') { + } else if(cmp > 0) { ctrB++; } else { - int cmp = strcmp(strA, strB); - if(cmp < 0) { - /* item only in filesA, qualifies as a difference */ - ret = alpm_list_add(ret, fileA); - ctrA++; - } else if(cmp > 0) { - ctrB++; - } else { - ctrA++; - ctrB++; - } + ctrA++; + ctrB++; } } /* ensure we have completely emptied pA */ while(ctrA < filesA->count) { alpm_file_t *fileA = filesA->files + ctrA; - const char *strA = fileA->name; - /* skip directories */ - if(strA[strlen(strA)-1] != '/') { - ret = alpm_list_add(ret, fileA); - } + ret = alpm_list_add(ret, fileA); ctrA++; } -- cgit v1.2.3-70-g09d2