diff options
Diffstat (limited to 'src/ls.c')
| -rw-r--r-- | src/ls.c | 23 |
1 files changed, 22 insertions, 1 deletions
@@ -126,6 +126,26 @@ Subtracting doesn't always work, due to overflow. */ #define longdiff(a, b) ((a) < (b) ? -1 : (a) > (b)) +/* Unix-based readdir implementations have historically returned a dirent.d_ino + value that is sometimes not equal to the stat-obtained st_ino value for + that same entry. This error occurs for a readdir entry that refers + to a mount point. readdir's error is to return the inode number of + the underlying directory -- one that typically cannot be stat'ed, as + long as a file system is mounted on that directory. RELIABLE_D_INO + encapsulates whether we can use the more efficient approach of relying + on readdir-supplied d_ino values, or whether we must incur the cost of + calling stat or lstat to obtain each guaranteed-valid inode number. */ + +#ifndef READDIR_LIES_ABOUT_MOUNTPOINT_D_INO +# define READDIR_LIES_ABOUT_MOUNTPOINT_D_INO 1 +#endif + +#if READDIR_LIES_ABOUT_MOUNTPOINT_D_INO +# define RELIABLE_D_INO(dp) NOT_AN_INODE_NUMBER +#else +# define RELIABLE_D_INO(dp) D_INO (dp) +#endif + #if ! HAVE_STRUCT_STAT_ST_AUTHOR # define st_author st_uid #endif @@ -2501,7 +2521,8 @@ print_dir (char const *name, char const *realname, bool command_line_arg) # endif } #endif - total_blocks += gobble_file (next->d_name, type, D_INO (next), + total_blocks += gobble_file (next->d_name, type, + RELIABLE_D_INO (next), false, name); /* In this narrow case, print out each name right away, so |