Libfind allows to be used for adding find(1) like command line features
to other programs (e.g. star and mkisofs). It also allows to implement
a find(1) command in 10 lines of code and it allows to be used as shell
built in function.
Example code for a complete find(1) program:
/*--------------------------------------------------------------------------*/
/* %Z%%M% %I% %E% Copyright 2004-2007 J. Schilling */
#ifndef lint
static char sccsid[] =
"%Z%%M% %I% %E% Copyright 2004-2007 J. Schilling";
#endif
/*
* Another find implementation...
*
* Copyright (c) 2004-2007 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#include <schily/mconfig.h>
#include <schily/unistd.h>
#include <schily/standard.h>
#include <schily/schily.h>
#include "walk.h"
#include "find.h"
EXPORT int main __PR((int ac, char **av));
EXPORT int
main(ac, av)
int ac;
char **av;
{
FILE *std[3];
std[0] = stdin;
std[1] = stdout;
std[2] = stderr;
return (find_main(ac, av, NULL, std, NULL));
}
/*--------------------------------------------------------------------------*/
Example code for redirecting I/O and for catching/handling signals in "bsh":
/*--------------------------------------------------------------------------*/
#include "../libfind/walk.h"
#include "../libfind/find.h"
LOCAL int
quitfun(void *arg)
{
return (*((int *)arg) != 0); /* Return TRUE is a signal was catched */
}
/* ARGSUSED */
EXPORT void
bfind(vp, std, flag)
vector *vp;
FILE *std[];
int flag;
{
squit_t quit;
quit.quitfun = quitfun; /* The function to evaluate "ctlc" */
quit.qfarg = &ctlc; /* The ^C catched counter */
ex_status = find_main(vp->v_ac, vp->v_av, evarray, std, &quit);
}
/*--------------------------------------------------------------------------*/
Example code for how to redirect I/O in ksh93 and how to catch signals:
NOTE: as th ksh93 does not use stdio but sfio, you need two wrapper
functions in order to run a standard program inside ksh93.
/*--------------------------------------------------------------------------*/
a.c: (compiled against sfio)
int
quitfun(void *dummy)
{
return (cmdquit() != 0);
}
int
b_find(int ac, char **av, void* context))
{
int i, o, e;
cmdinit(ac, av, context, ERROR_CATALOG, ERROR_NOTIFY);
i = fileno(stdin);
o = fileno(stdout);
e = fileno(stderr);
return xfind(ac, av, dup(i), dup(o), dup(e), quitfun);
}
------
b.c: (compiled against stdio)
int
xfind(int ac, char **av, int i, int o, int e, int (*quitfun)(void *))
{
int ret;
FILE *std[3];
squit_t quit;
quit.quitfun = quitfun; /* The function to evaluate "ctlc" */
quit.qfarg = NULL; /* Dummy */
std[0] = fdopen(i, "r+");
std[1] = fdopen(o, "w");
std[2] = fdopen(e, "w+");
ret = find_main(ac, av, NULL, std, &quit);
fclose(std[0]);
fclose(std[1]);
fclose(std[2]);
return (ret);
}
/*--------------------------------------------------------------------------*/
