| 1 | /* libc/sys/linux/inode.c - Inode-related system calls */ |
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| 2 | |
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| 3 | /* Written 2000 by Werner Almesberger */ |
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| 4 | |
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| 5 | |
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| 6 | #include <unistd.h> |
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| 7 | #include <fcntl.h> |
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| 8 | #include <sys/types.h> |
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| 9 | #include <sys/stat.h> |
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| 10 | #include <sys/utime.h> |
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| 11 | #include <dirent.h> |
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| 12 | #include <machine/syscall.h> |
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| 13 | |
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| 14 | #define _LIBC 1 |
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| 15 | #include <sys/lock.h> |
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| 16 | |
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| 17 | |
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| 18 | #define __NR___umask __NR_umask |
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| 19 | |
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| 20 | _syscall2(int,link,const char *,oldpath,const char *,newpath) |
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| 21 | _syscall1(int,unlink,const char *,pathname) |
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| 22 | _syscall1(int,chdir,const char *,path) |
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| 23 | _syscall1(int,fchdir,int,fd) |
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| 24 | _syscall2(int,access,const char *,filename,int,mode) |
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| 25 | _syscall2(int,mkdir,const char *,pathname,mode_t,mode) |
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| 26 | _syscall1(int,rmdir,const char *,pathname) |
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| 27 | _syscall1(int,chroot,const char *,path) |
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| 28 | _syscall2(int,stat,const char *,file_name,struct stat *,buf) |
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| 29 | _syscall2(int,statfs,const char *,file_name,struct statfs *,buf) |
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| 30 | _syscall2(int,fstat,int,filedes,struct stat *,buf) |
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| 31 | _syscall2(int,fstatfs,int,filedes,struct statfs *,buf) |
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| 32 | _syscall3(int,getdents,int,fd,struct dirent *,dirp,unsigned int,count) |
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| 33 | |
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| 34 | #if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 2 |
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| 35 | _syscall2(int,chmod,const char *,path,mode_t,mode) |
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| 36 | _syscall3(int,chown,const char *,path,uid_t,owner,gid_t,group) |
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| 37 | _syscall2(int,fchmod,int,filedes,mode_t,mode) |
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| 38 | _syscall3(int,lchown,const char *,path,uid_t,owner,gid_t,group) |
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| 39 | _syscall2(int,lstat,const char *,file_name,struct stat *,buf) |
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| 40 | _syscall3(int,readlink,const char *,path,char *,buf,size_t,bufsiz) |
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| 41 | _syscall2(int,symlink,const char *,oldpath,const char *,newpath) |
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| 42 | _syscall2(int,utime,const char *,filename,const struct utimbuf *,buf) |
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| 43 | #endif |
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| 44 | |
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| 45 | #if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 3 |
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| 46 | _syscall1(int,pipe,int *,filedes) |
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| 47 | #endif |
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| 48 | |
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| 49 | #if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 4 |
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| 50 | _syscall3(int,mknod,const char *,pathname,mode_t,mode,dev_t,dev) |
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| 51 | #endif |
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| 52 | |
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| 53 | weak_alias(__libc_statfs,__statfs) |
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| 54 | weak_alias(__libc_fstatfs,__fstatfs) |
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| 55 | |
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| 56 | static _syscall3(int,fchown32,int,fd,uid_t,owner,gid_t,group) |
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| 57 | |
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| 58 | int |
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| 59 | fchown (int fd, uid_t owner, gid_t group) |
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| 60 | { |
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| 61 | return __libc_fchown32 (fd, owner, group); |
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| 62 | } |
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| 63 | |
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| 64 | #if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 2 |
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| 65 | |
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| 66 | __LOCK_INIT(static, umask_lock); |
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| 67 | |
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| 68 | _syscall1(mode_t,__umask,mode_t,mask) |
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| 69 | |
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| 70 | mode_t |
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| 71 | umask (mode_t mask) |
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| 72 | { |
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| 73 | mode_t old_mask; |
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| 74 | |
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| 75 | /* we need to lock so as to not interfere with getumask */ |
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| 76 | __lock_acquire(umask_lock); |
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| 77 | old_mask = __umask (mask); |
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| 78 | __lock_release(umask_lock); |
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| 79 | |
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| 80 | return old_mask; |
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| 81 | } |
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| 82 | |
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| 83 | mode_t |
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| 84 | getumask (void) |
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| 85 | { |
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| 86 | mode_t mask; |
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| 87 | |
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| 88 | __lock_acquire(umask_lock); |
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| 89 | |
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| 90 | mask = __umask (0); |
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| 91 | mask = __umask (mask); |
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| 92 | |
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| 93 | __lock_release(umask_lock); |
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| 94 | |
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| 95 | return mask; |
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| 96 | } |
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| 97 | |
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| 98 | #endif /* !_ELIX_LEVEL || _ELIX_LEVEL >= 2 */ |
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