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/* copy - copy a file from one path to another preserving permissions
*
* Author: Jamie Bullock <jamie@jamiebullock.com>
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* For more information, please refer to <http://unlicense.org/>
*/
#include "m_pd.h"
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/stat.h>
#ifdef __APPLE__
#define O_BINARY 0
#endif
#ifdef WIN32
#define open _open
#define close _close
#define fdopen _fdopen
#define fdclose _fdclose
#endif
#define CONSOLE_PREFIX "[copy]: "
typedef struct _copy
{
t_object x_obj;
t_outlet *outlet;
}
t_copy;
t_class *copy_class;
static int do_copy(const char *source, const char *target);
void *copy_new(t_symbol *s, int argc, t_atom *argv)
{
t_copy *x = (t_copy *)pd_new(copy_class);
x->outlet = outlet_new(&x->x_obj, &s_float);
post(CONSOLE_PREFIX "copy file from source path to destination path");
return (void *)x;
}
static void copy_list(t_copy *x, t_symbol *s, int ac, t_atom *av)
{
char source[MAXPDSTRING];
char target[MAXPDSTRING];
int rv;
if(ac != 2 || (av[0].a_type != A_SYMBOL && av[1].a_type != A_SYMBOL))
{
pd_error(x, "expected a list containing <source path> <destination path>");
}
atom_string(&av[0], source, MAXPDSTRING);
atom_string(&av[1], target, MAXPDSTRING);
rv = do_copy(source, target);
rv++;
if(rv)
{
post(CONSOLE_PREFIX "%s successfully copied to %s", source, target);
}
outlet_float(x->outlet, (t_float)rv);
}
void copy_setup(void)
{
copy_class = class_new(gensym("copy"),
(t_newmethod)copy_new,
0, sizeof(t_copy), 0,
A_GIMME, 0);
class_addlist(copy_class, copy_list);
}
static int copy_data(FILE *source, FILE *target)
{
char buffer[BUFSIZ];
size_t n;
while ((n = fread(buffer, sizeof(char), sizeof(buffer), source)) > 0)
{
if (fwrite(buffer, sizeof(char), n, target) != n)
{
error("write failed");
return -1;
}
}
return 0;
}
static int do_copy(const char *source, const char *target)
{
struct stat info;
int rv;
int rv2;
int fdtarget;
int fdsource;
FILE *fsource;
FILE *ftarget;
fdsource = open(source, O_RDONLY|O_BINARY, 0);
if (fdsource == -1)
{
error(CONSOLE_PREFIX "invalid input");
return -1;
}
rv = fstat(fdsource, &info);
if(rv == -1)
{
error(CONSOLE_PREFIX "stat failed\n");
return -1;
}
fdtarget = open(target, O_WRONLY|O_BINARY|O_CREAT|O_TRUNC, info.st_mode);
if (fdtarget == -1)
{
error(CONSOLE_PREFIX "invalid output\n");
close(fdsource);
return -1;
}
fsource = fdopen(fdsource, "rb");
ftarget = fdopen(fdtarget, "wb");
rv = copy_data(fsource, ftarget);
if (rv == -1)
{
error(CONSOLE_PREFIX "copy failed");
}
rv = fclose(fsource);
rv2 = fclose(ftarget);
if (rv || rv2)
{
error(CONSOLE_PREFIX "file close failed");
rv = -1;
}
return rv;
}
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