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https://git.planet-casio.com/Vhex-Kernel-Core/fxlibc.git
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fcntl, unistd: declarations for the Unix file API
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Lephenixnoir
parent
92ccd8b1db
commit
c2feb94710
6 changed files with 80 additions and 73 deletions
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@ -9,9 +9,20 @@ extern "C" {
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threads are supported. */
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extern int errno;
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#define EDOM 1
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#define EILSEQ 2
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#define ERANGE 3
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#define EDOM 1 /* Outside of domain of math function. */
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#define EILSEQ 2 /* Illegal multi-byte character sequence. */
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#define ERANGE 3 /* Range error during text-to-numeric conversion. */
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#define EACCES 4 /* File access denied. */
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#define EEXIST 5 /* File already exists. */
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#define EINVAL 6 /* Invalid argument in general; lots of uses. */
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#define ENFILE 7 /* Out of file descriptors. */
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#define ENOENT 8 /* File or folder does not exist. */
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#define ENOMEM 9 /* System ran out of memory (RAM). */
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#define EDQUOT 10 /* Out of inodes or memory space. */
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#define ENOSPC 11 /* No space left on device. */
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#define ENOTSUP 12 /* Operation not supported. */
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#define EBADF 13 /* Invalid file descriptor. */
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#define ESPIPE 14 /* File descriptor is unable to seek. */
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#ifdef __cplusplus
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}
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@ -5,21 +5,29 @@
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extern "C" {
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#endif
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#include <stddef.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <sys/types.h>
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/* also defined in <stdio.h> */
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#define SEEK_SET 0 /* Seek from beginning of file. */
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#define SEEK_CUR 1 /* Seek from current position. */
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#define SEEK_END 2 /* Seek from end of file. */
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/* Access mode. */
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#define O_RDONLY 0x0000
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#define O_WRONLY 0x0001
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#define O_RDWR 0x0002
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/* Create file if nonexistent. */
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#define O_CREAT 0x0004
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/* Fail if not a directory. */
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#define O_DIRECTORY 0x0008
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/* Append and truncate modes. */
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#define O_APPEND 0x0010
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#define O_TRUNC 0x0020
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/* Exclusive open requiring creation. */
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#define O_EXCL 0x0040
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/*
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** Open FILE and return a new file descriptor for it, or -1 on error.
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** OFLAG determines the type of access used. If O_CREAT or O_TMPFILE is set
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** in OFLAG, the third argument is taken as a `mode_t', the mode of the
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** created file.
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*/
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extern int open(const char *pathname, int flags, ...);
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/* Create, truncate and open a file. */
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extern int creat(char const *__path, mode_t __mode);
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/* Open file and return a file descriptor, -1 on error. */
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extern int open(char const *__path, int __flags, ... /* mode_t __mode */);
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#ifdef __cplusplus
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}
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@ -10,7 +10,7 @@ extern "C" {
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// Define properly off_t type.
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# ifndef __off_t_defined
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typedef uint32_t off_t;
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typedef int32_t off_t;
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# define __off_t_defined
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# endif
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@ -21,7 +21,6 @@ typedef int32_t ssize_t;
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#endif
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// Define alias
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//FIXME: potential conflict with the real glibc(?)
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typedef int32_t pid_t;
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typedef int16_t mode_t;
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typedef uint16_t dev_t;
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@ -1,9 +0,0 @@
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#ifndef __BITS_FCNTL_H__
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# define __BITS_FCNTL_H__
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/* open/fcntl. */
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#define O_RDONLY 0
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#define O_WRONLY 1
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#define O_RDWR 2
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#endif /*__BITS_FCNTL_H__*/
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@ -5,11 +5,41 @@
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extern "C" {
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#endif
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#include <stddef.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <sys/types.h>
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/* Standard file descriptors. */
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#define STDIN_FILENO 0
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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/* Write data to a file descriptor; returns number of bytes written or -1. */
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extern ssize_t write(int __fd, const void *__buf, size_t __nbytes);
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/* Read data from a file descriptor; returns number of bytes read or -1. */
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extern ssize_t read(int __fd, void *__buf, size_t __nbytes);
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/* Read at a specific position from a file descriptor. */
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extern ssize_t pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
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/* Write at a specific position to a file descriptor. */
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extern ssize_t pwrite(int __fd, const void *__buf, size_t __n, off_t __offset);
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/* Seek at an offset from SEEK_SET/SEEK_CUR/SEEK_END; returns new position. */
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extern off_t lseek(int __fd, off_t __offset, int __whence);
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/* Close a file descriptor. */
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extern int close(int __fd);
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/* Remove a file. */
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extern int unlink(const char *__path);
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/* Kernel-style functions supported only by Vhex. */
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#ifdef __SUPPORT_VHEX_KERNEL
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//---
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// Process part
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///---
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@ -29,51 +59,6 @@ extern pid_t getppid(void);
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*/
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extern int setpgid(pid_t __pid, pid_t __pgid);
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//---
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// File part
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//---
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/* Standard file descriptors. */
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#define STDIN_FILENO 0 /* Standard input. */
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#define STDOUT_FILENO 1 /* Standard output. */
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#define STDERR_FILENO 2 /* Standard error output. */
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/*
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** Write N bytes of BUF to FD.
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** Return the number written, or -1.
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*/
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extern ssize_t write(int __fd, const void *__buf, size_t __nbytes);
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/*
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** Read NBYTES into BUF from FD.
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** Return the number read, -1 for errors or 0 for EOF.
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*/
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extern ssize_t read(int __fd, void *__buf, size_t __nbytes);
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/*
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** Read NBYTES into BUF from FD at the given position OFFSET without
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** changing the file pointer.
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** Return the number read, -1 for errors or 0 for EOF.
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*/
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extern ssize_t pread (int __fd, void *__buf, size_t __nbytes, off_t __offset);
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/*
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** Write N bytes of BUF to FD at the given position OFFSET without
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** changing the file pointer.
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** Return the number written, or -1.
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*/
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extern ssize_t pwrite (int __fd, const void *__buf, size_t __n, off_t __offset);
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/*
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** Move FD's file position to OFFSET bytes from the beginning of the file
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** (if WHENCE is SEEK_SET), the current position (if WHENCE is SEEK_CUR),
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** or the end of the file (if WHENCE is SEEK_END).
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** Return the new file position.
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*/
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extern off_t lseek (int __fd, off_t __offset, int __whence);
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/* Close the file descriptor FD */
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extern int close(int __fd);
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//---
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// System part
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//---
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@ -87,6 +72,8 @@ extern int close(int __fd);
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/* Get the value of the system variable NAME. */
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extern long int sysconf(int __name);
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#endif /*__SUPPORT_VHEX_KERNEL*/
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#ifdef __cplusplus
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}
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#endif
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@ -6,6 +6,17 @@ static char *errno_strings [] = {
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[EDOM] = "Numerical argument out of domain",
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[EILSEQ] = "Invalid or incomplete multibyte or wide character",
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[ERANGE] = "Numerical result out of range",
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[EACCES] = "Permission denied",
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[EEXIST] = "File exists",
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[EINVAL] = "Invalid argument",
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[ENFILE] = "Too many open files in system",
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[ENOENT] = "No such file or directory",
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[ENOMEM] = "Cannot allocate memory",
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[EDQUOT] = "Disk quota exceeded",
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[ENOSPC] = "No space left on device",
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[ENOTSUP] = "Operation not supported",
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[EBADF] = "Bad file descriptor",
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[ESPIPE] = "Illegal seek",
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};
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char *strerror(int e)
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