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Annotation of researchv10dc/man/manb/iread.3, revision 1.1.1.1

1.1       root        1: .TH IREAD 3
                      2: .SH NAME
                      3: iread \- insistent read
                      4: .SH SYNOPSIS
                      5: .B read(fildes, buf, n)
                      6: .B char *buf;
                      7: .SH DESCRIPTION
                      8: .I Iread,
                      9: like
                     10: .IR read (1),
                     11: reads
                     12: .I n
                     13: bytes from the file associated with the given file descriptor
                     14: into the block of store beginning at
                     15: .I buf.
                     16: .I Iread,
                     17: however, always places exactly
                     18: .I n
                     19: bytes in
                     20: .I buf,
                     21: unless 
                     22: .I read
                     23: would return 0.
                     24: .PP
                     25: .I Iread
                     26: returns the number of bytes placed in
                     27: .I buf,
                     28: which is an integer in the range 
                     29: .RI 0- n.
                     30: .SH DIAGNOSTICS
                     31: .I Iread
                     32: returns \-1 for an error; see
                     33: .IR read (1).
                     34: .SH SEE ALSO
                     35: read(2)

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