diff options
Diffstat (limited to 'tools/perf/util/build-id.c')
| -rw-r--r-- | tools/perf/util/build-id.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index bf7f3268b9a2..35505a1ffd11 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -86,6 +86,13 @@ int build_id__snprintf(const struct build_id *build_id, char *bf, size_t bf_size { size_t offs = 0; + if (build_id->size == 0) { + /* Ensure bf is always \0 terminated. */ + if (bf_size > 0) + bf[0] = '\0'; + return 0; + } + for (size_t i = 0; i < build_id->size && offs < bf_size; ++i) offs += snprintf(bf + offs, bf_size - offs, "%02x", build_id->data[i]); |