diff options
Diffstat (limited to 'src/dd.c')
| -rw-r--r-- | src/dd.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -1544,7 +1544,7 @@ skip (int fdesc, char const *file, uintmax_t records, size_t blocksize, struct stat st; if (fstat (STDIN_FILENO, &st) != 0) error (EXIT_FAILURE, errno, _("cannot fstat %s"), quote (file)); - if (S_ISREG (st.st_mode) && st.st_size < (input_offset + offset)) + if (usable_st_size (&st) && st.st_size < input_offset + offset) { /* When skipping past EOF, return the number of _full_ blocks * that are not skipped, and set offset to EOF, so the caller @@ -2104,8 +2104,8 @@ dd_copy (void) } } - /* If the last write was converted to a seek, then for a regular file, - ftruncate to extend the size. */ + /* If the last write was converted to a seek, then for a regular file + or shared memory object, ftruncate to extend the size. */ if (final_op_was_seek) { struct stat stdout_stat; @@ -2114,7 +2114,7 @@ dd_copy (void) error (0, errno, _("cannot fstat %s"), quote (output_file)); return EXIT_FAILURE; } - if (S_ISREG (stdout_stat.st_mode)) + if (S_ISREG (stdout_stat.st_mode) || S_TYPEISSHM (&stdout_stat)) { off_t output_offset = lseek (STDOUT_FILENO, 0, SEEK_CUR); if (output_offset > stdout_stat.st_size) |