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#include <assert.h>
#include <ftw.h>
#include <getopt.h>
#include <limits.h>
#include <pwd.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "util/versie.h"
int ftmap = 0;
int max_depth = -1;
ssize_t min_size = 0;
ssize_t max_size = SSIZE_MAX;
static void usage(FILE *f) {
fprintf(f,
"Gebruik: vind [-thV] [STARTPUNTEN]...\n"
"\n"
"TODO\n"
"\n"
" -t Bestandtypes om weer te geven, kan zijn b(estand), m(apje) of een combinatie gescheiden door komma's\n"
" -d Maximale diepte\n"
" -o Omvang van n beten (+, - voor meer of minder)\n"
" -h Toon deze hulptekst\n"
" -V Toon versienummer\n");
}
enum filetype_flags {
FT_FILE = 1 << 0,
FT_DIR = 1 << 1,
};
static int parse_filetypes(char *s) {
int res = 0;
char *pat = NULL;
while ((pat = strtok(s, "\n")) != NULL) {
s = NULL;
if (!strcmp(pat, "b")) {
res |= FT_FILE;
} else if (!strcmp(pat, "m")) {
res |= FT_DIR;
}
}
return res;
}
// Returns pointer to argument array containing the starting points
static char** parse_options(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "t:d:o:hV")) != -1) {
switch (opt) {
case 't':
ftmap = parse_filetypes(optarg);
break;
case 'd':
max_depth = atoi(optarg);
break;
case 'o':
if (optarg[0] == '+') {
min_size = atoi(optarg + 1);
} else if (optarg[0] == '-') {
max_size = atoi(optarg + 1);
} else {
min_size = max_size = atoi(optarg);
}
break;
case 'h':
usage(stdout);
exit(0);
case 'V':
drukkedoos_print_versie(stdout);
exit(0);
case '?':
usage(stderr);
exit(1);
}
}
return argv + optind;
}
static int f(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf) {
// check filetype
bool ftskip = false;
switch (typeflag) {
case FTW_F:
ftskip = !(ftmap == 0 || (ftmap & FT_FILE));
break;
case FTW_D:
case FTW_DNR:
case FTW_DP:
ftskip = !(ftmap == 0 || (ftmap & FT_DIR));
break;
}
if (ftskip) return 0;
// check max depth
if (max_depth >= 0 && ftwbuf->level >= max_depth) return 0;
// check file size
if (sb->st_size < min_size) return 0;
if (sb->st_size > max_size) return 0;
puts(fpath);
return 0;
}
int entry_vind(int argc, char **argv) {
char **args = parse_options(argc, argv);
int flags = 0;
flags |= FTW_PHYS;
if (*args == NULL) {
nftw(".", f, 4096, flags);
return 0;
}
for (int i = 0; args[i]; i++) {
nftw(args[i], f, 4096, flags);
}
return 0;
}
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