57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#include <unistd.h>
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#include <sys/syscall.h>
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#include "errorCode.h"
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errorCode_t fs_open(const char* path, int flags, int* fd) {
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if(fd == 0) {
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return EBADPARM;
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}
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int rc = syscall(SYS_open, path, flags);
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if(rc == -1) {
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return EFILESYS;
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}
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*fd = rc;
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return SUCCESS;
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}
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errorCode_t fs_write(int fd, const void *buf, int count, int* bytes_written) {
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int rc = syscall(SYS_write, fd, buf, count);
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if(rc == -1) {
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return EFILESYS;
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}
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if(bytes_written != 0) {
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*bytes_written = rc;
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}
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return SUCCESS;
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}
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errorCode_t fs_read(int fd, void *buf, int count, int* bytes_read) {
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int rc = syscall(SYS_read, fd, buf, count);
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if(rc == -1) {
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return EFILESYS;
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}
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if(bytes_read != 0) {
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*bytes_read = rc;
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}
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return SUCCESS;
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}
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errorCode_t fs_seek(int fd, int offset, int whence, int* distance) {
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int rc = syscall(SYS_lseek, fd, offset, whence);
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if(rc == -1) {
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return EFILESYS;
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}
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if(distance != 0) {
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*distance = rc;
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}
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return SUCCESS;
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}
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errorCode_t fs_close(int fd) {
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int rc = syscall(SYS_close, fd);
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if(rc == -1) {
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return EFILESYS;
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}
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return SUCCESS;
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} |