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/*
target is in current directory:
entries_single/<PLZ> entries_multi/<PLZ>
<PLZ> is either [0-9_]{5} or _____ or brken
opens files in source directory:
01_Flags 02_Nachname 03_Vorname 04_Zusaetze 07_Strasse 08_Hausnummer 09_Verweise 10_Postleitzahl
11_Ort 12_Vorwahl 13_Rufnummer 16_Koordinaten
appends to all of the above dirs plus
00_Jahr
*/
#include <sys/stat.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <err.h>
enum { F_00, F_01, F_10, F_02, F_03, F_04, F_07, F_08, F_09, F_11, F_12, F_13, F_16, F_COUNT };
static char *g_filenames[] = {
"00_Jahr", "01_Flags", "10_Postleitzahl", "02_Nachname", "03_Vorname", "04_Zusaetze", "07_Strasse", "08_Hausnummer", "09_Verweise", "11_Ort", "12_Vorwahl", "13_Rufnummer", "16_Koordinaten" };
FILE * fopen_prefix(char *prefix, int file_id, int readonly) {
char filename[1024];
snprintf( filename, sizeof(filename), "%s/%s", prefix, g_filenames[file_id]);
return fopen(filename, readonly ? "r" : "a");
}
int main(int argc, char **args) {
FILE * in_handles[F_COUNT] = { NULL };
FILE * out_handles[F_COUNT] = { NULL };
char flags[4];
int i, in_multi = 0;
char *input = malloc(1024);
size_t input_size = 1024;
/* First open all input files */
for (i=F_01; i<F_COUNT; ++i) {
in_handles[i] = fopen_prefix(args[1], i, 1);
if (!in_handles[i])
errx( 1, "Couldn't open file %s\n", g_filenames[i]);
}
mkdir( "multi", 0755);
mkdir( "single", 0755);
/* Get Flags to check if we're processing a continuation */
while (fgets(flags, 4, in_handles[F_01])) {
char out_dir[32];
ssize_t linelen;
char flag = strtoul(flags, 0, 16);
char *type = flag & 1 ? "multi/" : "single/";
/* If we're in multiline mode, we just copy lines as long as we see continuations */
if (in_multi) {
if (flag & 0x2) {
fputs(args[1], out_handles[F_00]); // write Jahr
fputc(10, out_handles[F_00]);
fwrite(flags, 3, 1, out_handles[F_01]); // copy Flags verbatim
for (i=F_10; i<F_COUNT; ++i) { // process the rest of entries
ssize_t linelen = getline(&input, &input_size, in_handles[i]);
fwrite(input, linelen, 1, out_handles[i]);
}
continue;
}
/* If the entry is not a continuation, close all output files and switch off multi mode */
for (i=0; i<F_COUNT; ++i) {
fclose(out_handles[i]);
out_handles[i] = NULL;
}
in_multi = 0;
}
if (flag & 0x1)
in_multi = 1;
/* Read Postleitzahl to get destination */
linelen = getline(&input, &input_size, in_handles[F_10]);
if (linelen && input[linelen - 1] == 10) { // chomp
input[linelen - 1] = 0;
--linelen;
}
if (linelen == 0) // empty PLZ
strcpy(out_dir, in_multi ? "multi/_____" : "single/_____");
else if (linelen == 5) { // potentially normal
int broken = 0;
char * dest = out_dir + sprintf(out_dir, in_multi ? "multi/" : "single/");
for (i=0; i<5; ++i) {
if ( (input[i] < '0' || input[i] > '9') && input[i] != '.') {
broken = 1;
break;
}
dest[i] = input[i];
if (dest[i] == '.') dest[i] = '_';
}
dest[5] = 0;
if (broken)
strcpy(out_dir, in_multi ? "multi/broken" : "single/broken");
} else
strcpy(out_dir, in_multi ? "multi/broken" : "single/broken");
if (mkdir(out_dir, 0755) == -1 && errno != EEXIST)
errx( 1, "Couldn't create directory %s %d\n", out_dir, errno);
for (i=F_00; i<F_COUNT; ++i) {
out_handles[i] = fopen_prefix(out_dir, i, 0);
if (!out_handles[i])
errx( 1, "Couldn't open file %s\n", g_filenames[i]);
}
fputs(args[1], out_handles[F_00]); // write Jahr
fputc(10, out_handles[F_00]);
fwrite(flags, 3, 1, out_handles[F_01]); // copy Flags verbatim
fputs(input, out_handles[F_10]); // copy Postleitzahl verbatim
fputc(10, out_handles[F_10]);
for (i=F_02; i<F_COUNT; ++i) { // process the rest of entries
ssize_t linelen = getline(&input, &input_size, in_handles[i]);
fwrite(input, linelen, 1, out_handles[i]);
}
if (!in_multi)
for (i=0; i<F_COUNT; ++i) {
fclose(out_handles[i]);
out_handles[i] = NULL;
}
}
return 0;
}
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