From c91d9484868f35e17dccc447d8c29cbb7978fb4f Mon Sep 17 00:00:00 2001 From: Andrew Gregory Date: Fri, 10 May 2013 16:26:19 -0400 Subject: conflict.c: check for file -> dir replacements Signed-off-by: Andrew Gregory Signed-off-by: Allan McRae --- lib/libalpm/conflict.c | 39 ++++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 19 deletions(-) (limited to 'lib') diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c index d44a4594..ab9546cd 100644 --- a/lib/libalpm/conflict.c +++ b/lib/libalpm/conflict.c @@ -505,6 +505,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle, size_t pathlen; pathlen = snprintf(path, PATH_MAX, "%s%s", handle->root, filestr); + relative_path = path + rootlen; /* stat the file - if it exists, do some checks */ if(_alpm_lstat(path, &lsbuf) != 0) { @@ -513,7 +514,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle, _alpm_log(handle, ALPM_LOG_DEBUG, "checking possible conflict: %s\n", path); - if(filestr[strlen(filestr) - 1] == '/') { + if(path[pathlen - 1] == '/') { if(S_ISDIR(lsbuf.st_mode)) { _alpm_log(handle, ALPM_LOG_DEBUG, "file is a directory, not a conflict\n"); continue; @@ -522,9 +523,25 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle, * not include the trailing slash. This allows things like file -> * directory replacements. */ path[pathlen - 1] = '\0'; - } - relative_path = path + rootlen; + /* Check if the directory was a file in dbpkg */ + if(alpm_filelist_contains(alpm_pkg_get_files(dbpkg), relative_path)) { + size_t fslen = strlen(filestr); + _alpm_log(handle, ALPM_LOG_DEBUG, + "replacing package file with a directory, not a conflict\n"); + resolved_conflict = 1; + + /* go ahead and skip any files inside filestr as they will + * necessarily be resolved by replacing the file with a dir + * NOTE: afterward, j will point to the last file inside filestr */ + for( ; j->next; j = j->next) { + const char *filestr2 = j->next->data; + if(strncmp(filestr, filestr2, fslen) != 0) { + break; + } + } + } + } /* Check remove list (will we remove the conflicting local file?) */ for(k = rem; k && !resolved_conflict; k = k->next) { @@ -573,22 +590,6 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle, free(dir); } - /* check if a component of the filepath was a link. canonicalize the path - * and look for it in the old package. note that the actual file under - * consideration cannot itself be a link, as it might be unowned- path - * components can be safely checked as all directories are "unowned". */ - if(!resolved_conflict && dbpkg && !S_ISLNK(lsbuf.st_mode)) { - char rpath[PATH_MAX]; - if(realpath(path, rpath)) { - const char *relative_rpath = rpath + rootlen; - if(alpm_filelist_contains(alpm_pkg_get_files(dbpkg), relative_rpath)) { - _alpm_log(handle, ALPM_LOG_DEBUG, - "package contained the resolved realpath\n"); - resolved_conflict = 1; - } - } - } - /* is the file unowned and in the backup list of the new package? */ if(!resolved_conflict && _alpm_needbackup(relative_path, p1)) { alpm_list_t *local_pkgs = _alpm_db_get_pkgcache(handle->db_local); -- cgit v1.2.3-24-g4f1b