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[dfs][posix] add creat()

This commit is contained in:
Meco Man 2022-01-19 16:13:23 -05:00 committed by Bernard Xiong
parent b67f34b097
commit add72f1d7c
2 changed files with 18 additions and 2 deletions
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16
components/dfs/src/dfs_posix.c
View File

@ -7,6 +7,7 @@
* Date Author Notes * Date Author Notes
* 2009-05-27 Yi.qiu The first version * 2009-05-27 Yi.qiu The first version
* 2018-02-07 Bernard Change the 3rd parameter of open/fcntl/ioctl to '...' * 2018-02-07 Bernard Change the 3rd parameter of open/fcntl/ioctl to '...'
* 2022-01-19 Meco Man add creat()
*/ */
#include <dfs_file.h> #include <dfs_file.h>
@ -56,6 +57,21 @@ int open(const char *file, int flags, ...)
} }
RTM_EXPORT(open); RTM_EXPORT(open);
/**
* this function is a POSIX compliant version,
* which will create a new file or rewrite an existing one
*
* @param path the path name of file.
* @param mode the file permission bits to be used in creating the file (not used, can be 0)
*
* @return the non-negative integer on successful open, others for failed.
*/
int creat(const char *path, mode_t mode)
{
return open(path, O_WRONLY | O_CREAT | O_TRUNC, mode);
}
RTM_EXPORT(creat);
/** /**
* this function is a POSIX compliant version, which will close the open * this function is a POSIX compliant version, which will close the open
* file descriptor. * file descriptor.

4
components/libc/compilers/common/extension/fcntl.h
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@ -11,7 +11,7 @@
#ifndef __FCNTL_H__ #ifndef __FCNTL_H__
#define __FCNTL_H__ #define __FCNTL_H__
#include <sys/types.h> #include "sys/types.h"
#define O_RDONLY 00 #define O_RDONLY 00
#define O_WRONLY 01 #define O_WRONLY 01
@ -66,6 +66,6 @@
int open(const char *file, int flags, ...); int open(const char *file, int flags, ...);
int fcntl(int fildes, int cmd, ...); int fcntl(int fildes, int cmd, ...);
int creat(const char *, mode_t); int creat(const char *path, mode_t mode);
#endif #endif