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author | Heikki Hannikainen <hessuh@rockbox.org> | 2002-08-24 09:47:54 +0000 |
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committer | Heikki Hannikainen <hessuh@rockbox.org> | 2002-08-24 09:47:54 +0000 |
commit | adbe4eddf918b7b617eb5bd4dda1435d5402b2c4 (patch) | |
tree | 7b59619e1a6b1a98525088f710ea777c3b614f05 /firmware | |
parent | bd510c2d2be5096f83e8ee80745fe528053ac2ec (diff) | |
download | rockbox-adbe4eddf918b7b617eb5bd4dda1435d5402b2c4.tar.gz rockbox-adbe4eddf918b7b617eb5bd4dda1435d5402b2c4.zip |
Make close() check for a valid fd and set errno accordingly.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1965 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware')
-rw-r--r-- | firmware/common/file.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/firmware/common/file.c b/firmware/common/file.c index c5f4cd5f5e..2c00c3e3f6 100644 --- a/firmware/common/file.c +++ b/firmware/common/file.c | |||
@@ -122,6 +122,14 @@ int open(char* pathname, int flags) | |||
122 | 122 | ||
123 | int close(int fd) | 123 | int close(int fd) |
124 | { | 124 | { |
125 | if (fd < 0 || fd > MAX_OPEN_FILES-1) { | ||
126 | errno = EINVAL; | ||
127 | return -1; | ||
128 | } | ||
129 | if (!openfiles[fd].busy) { | ||
130 | errno = EBADF; | ||
131 | return -1; | ||
132 | } | ||
125 | openfiles[fd].busy = false; | 133 | openfiles[fd].busy = false; |
126 | return 0; | 134 | return 0; |
127 | } | 135 | } |