mirrors/coreutils
0
0
Fork 0
mirror of https://github.com/coreutils/coreutils.git synced 2024-11-23 09:56:42 +08:00
Code Issues Packages Projects Releases Wiki Activity

split: don’t trust st_size on /proc files

Browse Source 
* src/split.c (create): Don’t trust st_size == 0.
This commit is contained in:
Paul Eggert 2024-04-06 15:18:04 -07:00
parent 8ff3903281
commit 1116367581
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/split.c
View File

@ -489,10 +489,8 @@ create (char const *name)
if (psame_inode (&in_stat_buf, &out_stat_buf))
error (EXIT_FAILURE, 0, _("%s would overwrite input; aborting"),
quoteaf (name));
bool regularish
= S_ISREG (out_stat_buf.st_mode) || S_TYPEISSHM (&out_stat_buf);
if (! (regularish && out_stat_buf.st_size == 0)
&& ftruncate (fd, 0) < 0 && regularish)
if (ftruncate (fd, 0) < 0
&& (S_ISREG (out_stat_buf.st_mode) || S_TYPEISSHM (&out_stat_buf)))
error (EXIT_FAILURE, errno, _("%s: error truncating"), quotef (name));
return fd;