87f7a8db5e
Submitted by: Peter Edwards <pmedwards@eircom.net>
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 1994 University of Maryland
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of U.M. not be used in advertising or
|
|
* publicity pertaining to distribution of the software without specific,
|
|
* written prior permission. U.M. makes no representations about the
|
|
* suitability of this software for any purpose. It is provided "as is"
|
|
* without express or implied warranty.
|
|
*
|
|
* U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
|
|
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* Author: James da Silva, Systems Design and Analysis Group
|
|
* Computer Science Department
|
|
* University of Maryland at College Park
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
/*
|
|
* crunched_main.c - main program for crunched binaries, it branches to a
|
|
* particular subprogram based on the value of argv[0]. Also included
|
|
* is a little program invoked when the crunched binary is called via
|
|
* its EXECNAME. This one prints out the list of compiled-in binaries,
|
|
* or calls one of them based on argv[1]. This allows the testing of
|
|
* the crunched binary without creating all the links.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
struct stub {
|
|
char *name;
|
|
int (*f)();
|
|
};
|
|
|
|
extern struct stub entry_points[];
|
|
|
|
int main(int argc, char **argv, char **envp)
|
|
{
|
|
char *slash, *basename;
|
|
struct stub *ep;
|
|
|
|
if(argv[0] == NULL || *argv[0] == '\0')
|
|
crunched_usage();
|
|
|
|
slash = strrchr(argv[0], '/');
|
|
basename = slash? slash+1 : argv[0];
|
|
|
|
for(ep=entry_points; ep->name != NULL; ep++)
|
|
if(!strcmp(basename, ep->name)) break;
|
|
|
|
if(ep->name)
|
|
return ep->f(argc, argv, envp);
|
|
else {
|
|
fprintf(stderr, "%s: %s not compiled in\n", EXECNAME, basename);
|
|
crunched_usage();
|
|
}
|
|
}
|
|
|
|
|
|
int crunched_here(char *path)
|
|
{
|
|
char *slash, *basename;
|
|
struct stub *ep;
|
|
|
|
slash = strrchr(path, '/');
|
|
basename = slash? slash+1 : path;
|
|
|
|
for(ep=entry_points; ep->name != NULL; ep++)
|
|
if(!strcmp(basename, ep->name))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int crunched_main(int argc, char **argv, char **envp)
|
|
{
|
|
struct stub *ep;
|
|
int columns, len;
|
|
|
|
if(argc <= 1)
|
|
crunched_usage();
|
|
|
|
return main(--argc, ++argv, envp);
|
|
}
|
|
|
|
|
|
int crunched_usage()
|
|
{
|
|
int columns, len;
|
|
struct stub *ep;
|
|
|
|
fprintf(stderr, "usage: %s <prog> <args> ..., where <prog> is one of:\n",
|
|
EXECNAME);
|
|
columns = 0;
|
|
for(ep=entry_points; ep->name != NULL; ep++) {
|
|
len = strlen(ep->name) + 1;
|
|
if(columns+len < 80)
|
|
columns += len;
|
|
else {
|
|
fprintf(stderr, "\n");
|
|
columns = len;
|
|
}
|
|
fprintf(stderr, " %s", ep->name);
|
|
}
|
|
fprintf(stderr, "\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* end of crunched_main.c */
|
|
|