FUNCTION::USER_BUFFE - Online Linux Manual PageSection : 3stap
Updated : November 2020
Source : SystemTap Tapset Reference
Note : String and data retrieving fun

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NAMEfunction::user_buffer_quoted_error − Retrieves and quotes buffer from user space

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SYNOPSIS user_buffer_quoted_error:string(addr:long,inlen:long,outlen:long)

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ARGUMENTSaddr the user space address to retrieve the buffer from inlen the exact length of the buffer to read outlen the maximum length of the output string

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DESCRIPTIONReads inlen characters of a buffer from the given user space memory address, and returns up to outlen characters, where any ASCII characters that are not printable are replaced by the corresponding escape sequence in the returned string​. Note that the string will be surrounded by double quotes​. On the rare cases when user space data is not accessible at the given address, an error is thrown​.

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SEE ALSO\ntapset::uconversions(3stap) 0

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ERROR : Need New Coding :         (rof_nr_x|149|function::user_buffer_quoted_error.3stap|56|\n |.SH SEE ALSO\n )    

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