LR_OPEN - open an LD input file.

Usage:

#include <ld.h>
lr_open(filename,min_version,max_version,target);

Where:

char *filename;

is the name of the LD file to be opened.

unsigned min_version;

is an integer indicating the earliest version of the LD format that the calling program is prepared to handle. If the version given in the LC_LDVERSION directive at the beginning of the file is earlier than "min_version", "lr_open" will terminate the calling program.

unsigned max_version;

is similar to "min_version", but states the latest version of the LD format that the calling program is prepared to handle.

char *target;

is a string containing the name of the target machine. This argument can also be NULL.

Description:

"lr_open" opens a file as the LD input file. It also checks that the LD version number of the input file falls into the range specified by "min_version" and "max_version". If a non-NULL "target" argument is specified, "lr_open" verifies that this target machine matches the one named in the file's LC_TARGET_INFO directive (if any).

After this checking has taken place, "lr_open" positions the input file at seek position zero. Thus the first directive that the program will find is the LC_TARGET_INFO.

See Also:

expl ld lib lw_open

expl ld lib lw_lopen

expl ld lib lr_close

expl ld lib lr_test

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