giomba/nes-proj
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

core/cfs: Disallow seeking past the end of a file if it is not writable

Browse Source
This commit is contained in:
Joakim Nohlgård 2016-04-23 10:03:09 +02:00
parent 0e9234dce6
commit 19550f9f7f
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
core/cfs/cfs-coffee.c
View File

@ -1055,7 +1055,12 @@ cfs_seek(int fd, cfs_offset_t offset, int whence)
}
if(fdp->file->end < new_offset) {
if(FD_WRITABLE(fd)) {
fdp->file->end = new_offset;
} else {
/* Disallow seeking past the end of the file for read only FDs */
return (cfs_offset_t)-1;
}
}
return fdp->offset = new_offset;