sbase/util/enmasse.c

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/* See LICENSE file for copyright and license details. */
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include "../util.h"
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static void fnck(const char *, const char *, int (*)(const char *, const char *));
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void
enmasse(int argc, char **argv, int (*fn)(const char *, const char *))
{
char *buf, *dir;
int i;
long size;
struct stat st;
if(argc == 2 && !(stat(argv[1], &st) == 0 && S_ISDIR(st.st_mode))) {
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fnck(argv[0], argv[1], fn);
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return;
}
else
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dir = (argc == 1) ? "." : argv[--argc];
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if((size = pathconf(dir, _PC_PATH_MAX)) == -1)
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size = BUFSIZ;
if(!(buf = malloc(size)))
eprintf("malloc:");
for(i = 0; i < argc; i++) {
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if(snprintf(buf, size, "%s/%s", dir, basename(argv[i])) > size)
eprintf("%s/%s: filename too long\n", dir, basename(argv[i]));
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fnck(argv[i], buf, fn);
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}
free(buf);
}
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void
fnck(const char *a, const char *b, int (*fn)(const char *, const char *))
{
struct stat sta, stb;
if(stat(a, &sta) == 0 && stat(b, &stb) == 0
&& sta.st_dev == stb.st_dev && sta.st_ino == stb.st_ino)
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eprintf("%s -> %s: same file\n", a, b);
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if(fn(a, b) == -1)
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eprintf("%s -> %s:", a, b);
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}