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libsysprof-capture: improve zero'ing when reading back

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Christian Hergert
2019-05-22 23:29:08 -07:00
parent cfab4b2d73
commit 4067b5e592
1 changed files with 4 additions and 2 deletions
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6
src/libsysprof-capture/sysprof-capture-reader.c
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@ -523,7 +523,8 @@ sysprof_capture_reader_read_mark (SysprofCaptureReader *self)
/* Ensure trailing \0 in name and message */ /* Ensure trailing \0 in name and message */
mark->name[sizeof mark->name - 1] = 0; mark->name[sizeof mark->name - 1] = 0;
self->buf[self->pos + mark->frame.len - 1] = 0; if (mark->frame.len > sizeof *mark)
((gchar *)mark)[mark->frame.len - 1] = 0;
/* Maybe update end-time */ /* Maybe update end-time */
if G_UNLIKELY ((mark->frame.time + mark->duration) > self->end_time) if G_UNLIKELY ((mark->frame.time + mark->duration) > self->end_time)
@ -566,7 +567,8 @@ sysprof_capture_reader_read_metadata (SysprofCaptureReader *self)
/* Ensure trailing \0 in .id and .metadata */ /* Ensure trailing \0 in .id and .metadata */
metadata->id[sizeof metadata->id - 1] = 0; metadata->id[sizeof metadata->id - 1] = 0;
self->buf[self->pos + metadata->frame.len - 1] = 0; if (metadata->frame.len > sizeof *metadata)
((gchar *)metadata)[metadata->frame.len - 1] = 0;
return metadata; return metadata;
} }