Passing an empty string to pacman -Qo results in: error: No package owns <first directory in $PATH> Catch empty strings and report an error. Signed-off-by: Allan McRae <allan@archlinux.org> --- FYI, v1 was submitted on 2017/05/11... It was suggested I should not just skip empty strings and instead report a letter. src/pacman/query.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/pacman/query.c b/src/pacman/query.c index 024d3e21..4a37a338 100644 --- a/src/pacman/query.c +++ b/src/pacman/query.c @@ -165,6 +165,11 @@ static int query_fileowner(alpm_list_t *targets) goto targcleanup; } + if(strcmp(filename, "") == 0) { + pm_printf(ALPM_LOG_ERROR, _("empty string passed to file owner query\n")); + goto targcleanup; + } + /* trailing '/' causes lstat to dereference directory symlinks */ len = strlen(filename) - 1; while(len > 0 && filename[len] == '/') { -- 2.15.1