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Add an lstat() syscall and use it to make "ls" nicer.

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This commit is contained in:
Andreas Kling 2018-10-24 13:19:36 +02:00
parent bca4b71bfa
commit 5f36a5f22e
10 changed files with 118 additions and 2 deletions
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23
LibC/types.h
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@ -20,5 +20,28 @@ typedef signed_dword ssize_t;
typedef dword ino_t;
typedef signed_dword off_t;
typedef dword dev_t;
typedef dword mode_t;
typedef dword nlink_t;
typedef dword blksize_t;
typedef dword blkcnt_t;
typedef dword time_t;
struct stat {
dev_t st_dev; /* ID of device containing file */
ino_t st_ino; /* inode number */
mode_t st_mode; /* protection */
nlink_t st_nlink; /* number of hard links */
uid_t st_uid; /* user ID of owner */
gid_t st_gid; /* group ID of owner */
dev_t st_rdev; /* device ID (if special file) */
off_t st_size; /* total size, in bytes */
blksize_t st_blksize; /* blocksize for file system I/O */
blkcnt_t st_blocks; /* number of 512B blocks allocated */
time_t st_atime; /* time of last access */
time_t st_mtime; /* time of last modification */
time_t st_ctime; /* time of last status change */
};
}

5
LibC/unistd.cpp
View file

@ -40,5 +40,10 @@ pid_t waitpid(pid_t waitee)
return Syscall::invoke(Syscall::PosixWaitpid, waitee);
}
int lstat(const char* path, stat* statbuf)
{
return Syscall::invoke(Syscall::PosixLstat, (dword)path, (dword)statbuf);
}
}

32
LibC/unistd.h
View file

@ -12,5 +12,37 @@ ssize_t read(int fd, void* buf, size_t count);
int close(int fd);
pid_t waitpid(pid_t);
int lstat(const char* path, stat* statbuf);
#define S_IFMT 0170000
#define S_IFDIR 0040000
#define S_IFCHR 0020000
#define S_IFBLK 0060000
#define S_IFREG 0100000
#define S_IFIFO 0010000
#define S_IFLNK 0120000
#define S_IFSOCK 0140000
#define S_ISUID 04000
#define S_ISGID 02000
#define S_ISVTX 01000
#define S_IRUSR 0400
#define S_IWUSR 0200
#define S_IXUSR 0100
#define S_IRGRP 0040
#define S_IWGRP 0020
#define S_IXGRP 0010
#define S_IROTH 0004
#define S_IWOTH 0002
#define S_IXOTH 0001
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
}