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Code Issues Releases Activity

O_RDONLY is 0

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This commit is contained in:
TuxSH 2018-05-09 00:53:13 +02:00
parent 77faa00a57
commit 3682a56062
1 changed files with 8 additions and 3 deletions
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11
fusee/fusee-secondary/src/fs_dev.c
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@ -311,24 +311,29 @@ static int fsdev_open(struct _reent *r, void *fileStruct, const char *path, int
{ O_CREAT , FA_OPEN_ALWAYS }, { O_CREAT , FA_OPEN_ALWAYS },
{ O_EXCL , FA_CREATE_NEW }, { O_EXCL , FA_CREATE_NEW },
{ O_TRUNC , FA_CREATE_ALWAYS }, { O_TRUNC , FA_CREATE_ALWAYS },
{ O_RDONLY, FA_READ }, /*{ O_RDONLY, FA_READ }, O_RDONLY is 0*/
{ O_WRONLY, FA_WRITE }, { O_WRONLY, FA_WRITE },
{ O_RDWR , FA_READ | FA_WRITE }, { O_RDWR , FA_READ | FA_WRITE },
}; };
if ((flags & O_RDONLY & O_WRONLY) || ((flags & O_RDWR) & (O_RDONLY | O_WRONLY))) { if ((flags & O_RDWR) & (O_RDONLY | O_WRONLY)) {
r->_errno = EINVAL; r->_errno = EINVAL;
return -1; return -1;
} }
if (flags & O_RDONLY & O_APPEND) { if ((flags & O_APPEND) && (flags & O_ACCMODE) == O_RDONLY) {
r->_errno = EINVAL; r->_errno = EINVAL;
return -1; return -1;
} }
for (size_t i = 0; i < sizeof(flag_mappings)/sizeof(flag_mappings[0]); i++) { for (size_t i = 0; i < sizeof(flag_mappings)/sizeof(flag_mappings[0]); i++) {
if (flags & flag_mappings[i].posix_flag) { if (flags & flag_mappings[i].posix_flag) {
ff_flags |= flag_mappings[i].ff_flag; ff_flags |= flag_mappings[i].ff_flag;
} }
} }
if ((flags & O_ACCMODE) == O_RDONLY) {
ff_flags |= FA_READ;
}
/* Normalize O_CREAT|O_TRUNC */ /* Normalize O_CREAT|O_TRUNC */
if ((ff_flags & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS)) == (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS)) { if ((ff_flags & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS)) == (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS)) {
ff_flags &= ~FA_OPEN_ALWAYS; ff_flags &= ~FA_OPEN_ALWAYS;