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Annotation of researchv10dc/dist/man/v4/man2/open.2, revision 1.1.1.1

1.1       root        1: .th OPEN II 8/5/73
                      2: .sh NAME
                      3: open \*- open for reading or writing
                      4: .sh SYNOPSIS
                      5: (open = 5.)
                      6: .br
                      7: .ft B
                      8: sys open; name; mode
                      9: .s3
                     10: open(name, mode)
                     11: .br
                     12: char *name;
                     13: .ft R
                     14: .sh DESCRIPTION
                     15: .it Open
                     16: opens the file
                     17: .it name
                     18: for reading
                     19: (if
                     20: .it mode
                     21: is 0),
                     22: writing (if
                     23: .it mode
                     24: is 1) or for both reading and writing
                     25: (if
                     26: .it mode
                     27: is 2).
                     28: .it Name
                     29: is the address of a string of ASCII characters representing
                     30: a path name, terminated by a null character.
                     31: .s3
                     32: The returned file descriptor should be saved for subsequent calls
                     33: to
                     34: .it read,
                     35: .it write,
                     36: and
                     37: .it close.
                     38: .sh "SEE ALSO"
                     39: creat(II), read(II), write(II), close(II)
                     40: .sh DIAGNOSTICS
                     41: The error bit
                     42: (c-bit) is set if the file does not exist,
                     43: if one of the necessary directories
                     44: does not exist or is unreadable, if the file is not
                     45: readable (resp. writable), or if 10 files are open.
                     46: From C, a \*-1 value is returned on an error.

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