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#include <fcntl.h>
#include <stdio.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>
#include "util/map.h"
int entry_tak(int argc, char **argv) {
if (argc == 2 && strcmp(argv[1], "-h") == 0) {
fprintf(stderr, "Gebruik: tak [BESTAND]...\n"
"\n"
"Schakel BESTAND(en) aaneen naar standaard uitvoer omgekeerd.\n");
return 0;
}
for (int i = argc-1; i >= 1; i--) {
const char *fname = argv[i];
struct map *map = open_map(fname);
if (map == NULL) {
return 1;
}
char *lstart, *lend;
lend = &map->addr[map->sb.st_size - 1];
while (lend > map->addr) {
if (*lend == '\n') {
lend--;
}
lstart = lend;
while (*lstart != '\n' && lstart != map->addr) {
lstart--;
}
if (lstart != map->addr) {
lstart++;
}
fwrite(lstart, 1, lend - lstart + 2, stdout);
lend = lstart-1;
}
close_map(map);
}
return 0;
}
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