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/* cmdline.h: macros to help process command-line arguments. */
#ifndef CMDLINE_H
#define CMDLINE_H
#include "getopt.h"
#include "types.h"
#include <string.h>
/* Test whether getopt found an option ``A''.
Assumes the option index is in the variable `option_index', and the
option table in a variable `long_options'. */
#define ARGUMENT_IS(a) (long_options[option_index].name != NULL && a != NULL && 0 == strcasecmp(long_options[option_index].name, a))
/* Perform common actions at the end of parsing the arguments. Assumes
lots of variables: `printed_version', a boolean for whether the
version number has been printed; `optind', the current option index;
`argc'; `argv'. */
#define FINISH_COMMAND_LINE() \
do \
{ \
/* Just wanted to know the version number? */ \
if (printed_version && optind == argc) exit (0); \
\
/* Exactly one (non-empty) argument left? */ \
if (optind + 1 == argc && *argv[optind] != 0) \
{ \
return (argv[optind]); \
} \
else \
{ \
fprintf (stderr, "Usage: %s [options] <image_name>.\n", argv[0]);\
fprintf (stderr, "(%s.)\n", optind == argc ? "Missing <image_name>"\
: "Too many <image_name>s"); \
fputs ("For more information, use ``-help''.\n", stderr); \
exit (1); \
} \
return NULL; /* stop warnings */ \
} \
while (0)
#define GETOPT_USAGE \
" You can use `--' or `-' to start an option.\n\
You can use any unambiguous abbreviation for an option name.\n\
You can separate option names and values with `=' or ` '.\n\
"
/* What to pass to `strtok' to separate different arguments to an
option, as in `-option=arg1,arg2,arg3'. It is useful to allow
whitespace as well so that the option value can come from a file, via
the shell construct "`cat file`" (including the quotes). */
#define ARG_SEP ", \t\n"
#endif /* not CMDLINE_H */
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