From 5006e4bd9aecea40ca3d907adc692c4c8001a6c1 Mon Sep 17 00:00:00 2001 From: Yu Watanabe Date: Mon, 22 Jul 2019 11:08:06 +0900 Subject: [PATCH] pstore: do not add FILE= journal entry if content_size == 0 (cherry picked from commit 6bf18debddbe1b231f783617e054cc194bb36d1e) Related: #2158832 --- src/pstore/pstore.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/src/pstore/pstore.c b/src/pstore/pstore.c index ce8080ceed..eb251d61c8 100644 --- a/src/pstore/pstore.c +++ b/src/pstore/pstore.c @@ -114,10 +114,8 @@ static int compare_pstore_entries(const void *_a, const void *_b) { static int move_file(PStoreEntry *pe, const char *subdir) { _cleanup_free_ char *ifd_path = NULL, *ofd_path = NULL; - _cleanup_free_ void *field = NULL; + const char *suffix, *message; struct iovec iovec[2]; - const char *suffix; - size_t field_size; int n_iovec = 0, r; if (pe->handled) @@ -133,15 +131,20 @@ static int move_file(PStoreEntry *pe, const char *subdir) { /* Always log to the journal */ suffix = arg_storage == PSTORE_STORAGE_EXTERNAL ? strjoina(" moved to ", ofd_path) : (char *)"."; - field = strjoina("MESSAGE=PStore ", pe->dirent.d_name, suffix); - iovec[n_iovec++] = IOVEC_MAKE_STRING(field); + message = strjoina("MESSAGE=PStore ", pe->dirent.d_name, suffix); + iovec[n_iovec++] = IOVEC_MAKE_STRING(message); - field_size = strlen("FILE=") + pe->content_size; - field = malloc(field_size); - if (!field) - return log_oom(); - memcpy(stpcpy(field, "FILE="), pe->content, pe->content_size); - iovec[n_iovec++] = IOVEC_MAKE(field, field_size); + if (pe->content_size > 0) { + _cleanup_free_ void *field = NULL; + size_t field_size; + + field_size = strlen("FILE=") + pe->content_size; + field = malloc(field_size); + if (!field) + return log_oom(); + memcpy(stpcpy(field, "FILE="), pe->content, pe->content_size); + iovec[n_iovec++] = IOVEC_MAKE(field, field_size); + } r = sd_journal_sendv(iovec, n_iovec); if (r < 0)