diff options
Diffstat (limited to 'src/target/firmware/sys/file.c')
| -rw-r--r-- | src/target/firmware/sys/file.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/target/firmware/sys/file.c b/src/target/firmware/sys/file.c index 21fc280a..6b0b6ae0 100644 --- a/src/target/firmware/sys/file.c +++ b/src/target/firmware/sys/file.c @@ -208,6 +208,7 @@ struct file *file_for_fd(int fd) return open_fds[fd]; } +/* dummy open implementation */ int __libc_open(const char *pathname, int flags, ...) { errno = EOPNOTSUPP; @@ -217,6 +218,7 @@ int __libc_open(const char *pathname, int flags, ...) int open(const char *pathname, int flags, ...) __attribute__ ((weak, alias("__libc_open"))); +/* close implementation */ int __libc_close(int fd) { struct file *file = file_for_fd(fd); @@ -238,6 +240,7 @@ int __libc_close(int fd) int close(int fd) __attribute__ ((weak, alias("__libc_close"))); +/* read implementation */ ssize_t __libc_read(int fd, void *buf, size_t count) { struct file *f = file_for_fd(fd); @@ -252,6 +255,7 @@ ssize_t __libc_read(int fd, void *buf, size_t count) ssize_t read(int fd, void *buf, size_t count) __attribute__ ((weak, alias("__libc_read"))); +/* write implementation */ ssize_t __libc_write(int fd, const void *buf, size_t count) { struct file *f = file_for_fd(fd); @@ -266,6 +270,7 @@ ssize_t __libc_write(int fd, const void *buf, size_t count) ssize_t write(int fd, const void *buf, size_t count) __attribute__ ((weak, alias("__libc_write"))); +/* seek implementation */ off_t __libc_lseek(int fd, off_t offset, int whence) { struct file *f = file_for_fd(fd); @@ -280,8 +285,15 @@ off_t __libc_lseek(int fd, off_t offset, int whence) off_t lseek(int fd, off_t offset, int whence) __attribute__ ((weak, alias("__libc_lseek"))); +/* dummy fstat implementation */ int __libc_fstat(int fd, struct stat *buf) { + struct file *f = file_for_fd(fd); + if (!f) { + errno = EBADF; + return -1; + } + errno = EOPNOTSUPP; return -1; } @@ -289,8 +301,16 @@ int __libc_fstat(int fd, struct stat *buf) int fstat(int fd, struct stat *buf) __attribute__ ((weak, alias("__libc_fstat"))); + +/* dummy ioctl implementation */ int __libc_ioctl(int fd, long int request, ...) { + struct file *f = file_for_fd(fd); + if (!f) { + errno = EBADF; + return -1; + } + errno = EOPNOTSUPP; return -1; } |