crash dump server for red hat ent 4

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cr_read

cr_read(3)						     Library Functions Manual							cr_read(3)

NAME

       cr_read - read from crash dump

SYNOPSIS

DESCRIPTION

       The  function  attempts	to  read  the  memory area defined by mem_page and num_pages into the buffer pointed to by buf from the crash dump
       opened using crash_cb.

       The starts at the position in the crash dump associated with the physical memory offset given by mem_page.  If  the  physical  memory  page
       mem_page does not exist in the crash dump, sets *num_pages to 0 and returns 0.

       No data transfer will occur past a page of memory that does not exist in the crash dump.  If the starting position, mem_page, plus the read
       length, *num_pages, goes past an area of memory that does not exist in the crash dump, sets *num_pages to the number of	consecutive  pages
       (starting at mem_page) actually read.

RETURN VALUE

       Returns zero for success.  Other possible return values are described in libcrash(5).

EXAMPLES

       Assuming  a process opened a crash dump, the following call to cr_read(3) reads the first pages from the crash dump into the buffer pointed
       to by mybuf:

WARNINGS

       may return fewer pages than requested due to implementation details.  Always check the number of pages returned.  If they  are  fewer  than
       requested,  issue  a  new request starting at the first page not returned.  Only if that new request reads zero pages (or returns an error)
       can you be sure that the page was not dumped.

AUTHOR

       was developed by HP.

SEE ALSO

       cr_open(3), libcrash(5).

																	cr_read(3)

Linux