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47 lines
1.2 KiB
Plaintext
47 lines
1.2 KiB
Plaintext
NAME
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access - determine existence or accessibility of named file
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SYNOPSIS
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access(name [, mode])
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TYPES
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name string
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mode integer or string containing only 'r', 'w', 'x' characters
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return null value or error
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DESCRIPTION
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access(name) or access(name, 0) or access(name, "") returns the null
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value if a file with this name exists.
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If non-null mode is specified, the null value is returned if there
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is a file with the specified name and accessibility indicated by the
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bits or characters of the mode argument: 'r' or bit 2 for reading,
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'w' or bit 1 for writing, 'x' or bit 0 for execution.
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EXAMPLE
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> !rm -f junk
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> access("junk")
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Error 10002 XXX This number will probably be changed
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> f = fopen("junk", "w")
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> access("junk")
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> fputs(f, "Now is the time");
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> freopen(f, "r");
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> !chmod u-w junk
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> fgets(f)
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"Now is the time"
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> access("junk", "w")
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Error 10013 XXX
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> freopen(f, "w")
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Error 10013 XXX
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LIMITS
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none - XXX - is this correct?
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LIBRARY
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none - XXX - is this correct?
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SEE ALSO
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errno, fclose, feof, ferror, fflush, fgetc, fgetline, fgets, files, fopen,
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fprintf, fputc, fputs, fseek, fsize, ftell, isfile, printf, prompt
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