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vim-patch:9.0.0803: readblob() cannot read from character device

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Problem:    readblob() cannot read from character device.
Solution:   Use S_ISCHR() to not check the size. (Ken Takata, closes vim/vim#11407)

43625762a9

S_ISCHR is always defined in Nvim.

Co-authored-by: K.Takata <kentkt@csc.jp>
This commit is contained in:
zeertzjq
2023-02-28 19:23:28 +08:00
parent bfa0bc7df0
commit 4bd0611d7b
3 changed files with 14 additions and 3 deletions
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5
src/nvim/eval.c
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@@ -5893,10 +5893,11 @@ int read_blob(FILE *const fd, typval_T *rettv, off_T offset, off_T size_arg)
}
// Trying to read bytes that aren't there results in an empty blob, not an
// error.
if (size < 0 || size > (off_T)os_fileinfo_size(&file_info)) {
if (size < 0 || (!S_ISCHR(file_info.stat.st_mode)
&& size > (off_T)os_fileinfo_size(&file_info))) {
return OK;
}
if (vim_fseek(fd, offset, whence) != 0) {
if (offset != 0 && vim_fseek(fd, offset, whence) != 0) {
return OK;
}