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#include <debug.h>
#include <cmdline.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <ctype.h>
extern char *optarg;
extern int optind, opterr, optopt;
static struct option long_options[] =
{
{"verbose", no_argument, 0, 'V'},
{"quiet", no_argument, 0, 'Q'},
{"shady", no_argument, 0, 'S'},
{"print", no_argument, 0, 'p'},
{"help", no_argument, 0, 'h'},
{"outfile", required_argument, 0, 'o'},
{"filter", required_argument, 0, 'f'},
{"dry", no_argument, 0, 'n'},
{"strip", no_argument, 0, 's'},
{0, 0, 0, 0},
};
/* This array must parallel long_options[] */
static
const char *descriptions[sizeof(long_options)/sizeof(long_options[0])] = {
"print verbose output",
"suppress errors and warnings",
"patch ABS symbols whose values coincide with section starts and ends",
"print the symbol table (if specified, only -V is allowed)",
"this help screen",
"specify an output file (if not provided, input file is modified)",
"specify a symbol-filter file",
"dry run (perform all calculations but do not modify the ELF file)",
"strip debug sections, if they are present"
};
void print_help(void)
{
fprintf(stdout,
"invokation:\n"
"\tsoslim file1 [file2 file3 ... fileN] [-Ldir1 -Ldir2 ... -LdirN] "
"[-Vpn]\n"
"or\n"
"\tsoslim -h\n\n");
fprintf(stdout, "options:\n");
struct option *opt = long_options;
const char **desc = descriptions;
while (opt->name) {
fprintf(stdout, "\t-%c/--%-15s %s\n",
opt->val,
opt->name,
*desc);
opt++;
desc++;
}
}
int get_options(int argc, char **argv,
char **outfile,
char **symsfile,
int *print_symtab,
int *verbose,
int *quiet,
int *shady,
int *dry_run,
int *strip_debug)
{
int c;
ASSERT(outfile);
*outfile = NULL;
ASSERT(symsfile);
*symsfile = NULL;
ASSERT(print_symtab);
*print_symtab = 0;
ASSERT(verbose);
*verbose = 0;
ASSERT(quiet);
*quiet = 0;
ASSERT(shady);
*shady = 0;
ASSERT(dry_run);
*dry_run = 0;
ASSERT(strip_debug);
*strip_debug = 0;
while (1) {
/* getopt_long stores the option index here. */
int option_index = 0;
c = getopt_long (argc, argv,
"QVSphi:o:y:Y:f:ns",
long_options,
&option_index);
/* Detect the end of the options. */
if (c == -1) break;
if (isgraph(c)) {
INFO ("option -%c with value `%s'\n", c, (optarg ?: "(null)"));
}
#define SET_STRING_OPTION(name) do { \
ASSERT(optarg); \
*name = strdup(optarg); \
} while(0)
switch (c) {
case 0:
/* If this option set a flag, do nothing else now. */
if (long_options[option_index].flag != 0)
break;
INFO ("option %s", long_options[option_index].name);
if (optarg)
INFO (" with arg %s", optarg);
INFO ("\n");
break;
case 'p': *print_symtab = 1; break;
case 'h': print_help(); exit(1); break;
case 'V': *verbose = 1; break;
case 'Q': *quiet = 1; break;
case 'S': *shady = 1; break;
case 'n': *dry_run = 1; break;
case 's': *strip_debug = 1; break;
case 'o': SET_STRING_OPTION(outfile); break;
case 'f': SET_STRING_OPTION(symsfile); break;
case '?':
/* getopt_long already printed an error message. */
break;
#undef SET_STRING_OPTION
default:
FAILIF(1, "Unknown option");
}
}
return optind;
}
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