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| #include <stdio.h>
#include <stdlib.h>
#include <arpa/inet.h>
#define MAXLIMIT 64
#define IPCOUNT 165158
#define MOBILECOUNT 49664
struct row {
in_addr_t start_ip;
in_addr_t end_ip;
char code[16];
};
void resolve_file(FILE *fp, struct row all_data[]);
in_addr_t addr_str_to_int(char *cp);
void int_to_addr_str(in_addr_t start, in_addr_t end, char *base_code, char *mobile_code);
int main(int argc, char *argv[]) {
FILE *fp;
char *base_ip = "../base_ip.csv";
char *mobile_ip = "../mobile_ip.csv";
struct row struct_base_ip[IPCOUNT];
struct row struct_mobile_ip[MOBILECOUNT];
if ((fp = fopen(base_ip, "r")) == NULL) {
printf("cat: can't open %s\n", base_ip);
exit(1);
} else {
resolve_file(fp, struct_base_ip);
}
if ((fp = fopen(mobile_ip, "r")) == NULL) {
printf("cat: can't open %s\n", mobile_ip);
exit(1);
} else {
resolve_file(fp, struct_mobile_ip);
}
char *line = "start_ip,end_ip,base_code,mobile_code";
printf("%s\n", line);
in_addr_t start = 0, end = 0;
int i = 0, j = 0, is_mobile_out = 0;;
while (i < IPCOUNT) {
if (j < MOBILECOUNT) {
if (struct_mobile_ip[j].start_ip > struct_base_ip[i].start_ip) {
start = struct_base_ip[i].start_ip;
if (struct_mobile_ip[j].start_ip > struct_base_ip[i].end_ip) {
end = struct_base_ip[i].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, "NONE");
++i;
} else if (struct_mobile_ip[j].end_ip > struct_base_ip[i].end_ip) {
end = struct_mobile_ip[j].start_ip - 1;
int_to_addr_str(start, end, struct_base_ip[i].code, "NONE");
start = struct_mobile_ip[j].start_ip;
end = struct_base_ip[i].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
++i;
} else if (struct_mobile_ip[j].end_ip < struct_base_ip[i].end_ip){
end = struct_mobile_ip[j].start_ip - 1;
int_to_addr_str(start, end, struct_base_ip[i].code, "NONE");
start = struct_mobile_ip[j].start_ip;
end = struct_mobile_ip[j].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
struct_base_ip[i].start_ip = struct_mobile_ip[j].end_ip + 1;
++j;
} else if (struct_mobile_ip[j].end_ip > struct_base_ip[i].end_ip) {
end = struct_mobile_ip[j].start_ip - 1;
int_to_addr_str(start, end, struct_base_ip[i].code, "NONE");
start = struct_mobile_ip[j].start_ip;
end = struct_base_ip[i].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
++i;
++j;
}
} else if (struct_mobile_ip[j].start_ip < struct_base_ip[i].start_ip) {
if (struct_base_ip[i].start_ip > struct_mobile_ip[j].end_ip) {
start = struct_mobile_ip[j].start_ip;
end = struct_mobile_ip[j].end_ip;
int_to_addr_str(start, end, "XXX", struct_mobile_ip[j].code);
++j;
} else if (struct_base_ip[i].end_ip > struct_mobile_ip[j].end_ip) {
start = struct_base_ip[i].start_ip;
end = struct_mobile_ip[j].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
struct_base_ip[i].start_ip = struct_mobile_ip[j].end_ip + 1;
++j;
} else if (struct_base_ip[i].end_ip < struct_mobile_ip[j].end_ip) {
start = struct_base_ip[i].start_ip;
end = struct_base_ip[i].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
++i;
} else if (struct_base_ip[i].end_ip == struct_mobile_ip[j].end_ip) {
start = struct_base_ip[i].start_ip;
end = struct_mobile_ip[j].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
struct_base_ip[i].start_ip = struct_mobile_ip[j].end_ip + 1;
++j;
++i;
}
} else {
start = struct_base_ip[i].start_ip;
if (struct_base_ip[i].end_ip > struct_mobile_ip[j].end_ip) {
end = struct_mobile_ip[j].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
struct_base_ip[i].start_ip = struct_mobile_ip[j].end_ip + 1;
++j;
} else if (struct_base_ip[i].end_ip < struct_mobile_ip[j].end_ip) {
end = struct_base_ip[i].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
++i;
} else {
end = struct_base_ip[i].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, struct_mobile_ip[j].code);
++i;
++j;
}
}
} else {
if (!is_mobile_out) {
start = struct_mobile_ip[MOBILECOUNT - 1].end_ip + 1;
is_mobile_out = 1;
} else {
start = struct_base_ip[i].start_ip;
}
end = struct_base_ip[i].end_ip;
int_to_addr_str(start, end, struct_base_ip[i].code, "NONE");
++i;
}
}
exit(0);
}
void resolve_file(FILE *fp, struct row all_data[]) {
char line[MAXLIMIT], s_start_ip[16], s_end_ip[16];
char *lp;
int i = 0;
while ((lp = fgets(line, MAXLIMIT, fp)) != NULL) {
sscanf(lp, "%[^,],%[^,],%s",
s_start_ip,
s_end_ip,
(&all_data[i])->code);
(&all_data[i])->start_ip = addr_str_to_int(s_start_ip);
(&all_data[i])->end_ip = addr_str_to_int(s_end_ip);
i++;
}
fclose(fp);
}
in_addr_t addr_str_to_int(char *cp) {
return ntohl(inet_addr(cp));
}
void int_to_addr_str(in_addr_t start, in_addr_t end, char *base_code, char *mobile_code) {
start = htonl(start);
end = htonl(end);
char start_str[16], end_str[16];
unsigned char *start_bytes = (unsigned char *) &start;
unsigned char *end_bytes = (unsigned char *) &end;
snprintf (start_str, sizeof (start_str), "%d.%d.%d.%d",
start_bytes[0], start_bytes[1], start_bytes[2], start_bytes[3]);
snprintf (end_str, sizeof (start_str), "%d.%d.%d.%d",
end_bytes[0], end_bytes[1], end_bytes[2], end_bytes[3]);
printf("%s,%s,%s,%s\n", start_str, end_str, base_code, mobile_code);
}
|