diff options
Diffstat (limited to 'src/mmap.c')
| -rw-r--r-- | src/mmap.c | 14 |
1 files changed, 13 insertions, 1 deletions
@@ -233,7 +233,12 @@ _gdbm_mapped_remap (GDBM_FILE dbf, off_t size, int flag) dbf->mapped_pos += dbf->mapped_off; dbf->mapped_off = 0; } - + if (pos > file_size) + { + errno = EINVAL; + GDBM_SET_ERRNO (dbf, GDBM_FILE_SEEK_ERROR, TRUE); + return -1; + } return _gdbm_internal_remap (dbf, size); } @@ -271,6 +276,10 @@ _gdbm_mapped_read (GDBM_FILE dbf, void *buffer, size_t len) { int rc; + if (dbf->need_recovery) + return -1; + + /* Disable memory mapping and retry */ dbf->memory_mapping = FALSE; if (lseek (dbf->desc, pos, SEEK_SET) != pos) return total > 0 ? total : -1; @@ -321,6 +330,9 @@ _gdbm_mapped_write (GDBM_FILE dbf, void *buffer, size_t len) { int rc; + if (dbf->need_recovery) + return -1; + dbf->memory_mapping = FALSE; if (lseek (dbf->desc, pos, SEEK_SET) != pos) return total > 0 ? total : -1; |