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ip-lookup
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Update Makefile, change build

This commit is contained in:
Wizzard 2024-02-26 01:39:53 -05:00
parent 1430c2f33c
commit a952a10759
4 changed files with 92 additions and 90 deletions
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8
Makefile
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@ -1,5 +1,9 @@
CC=gcc
CFLAGS=-lcurl -lcjson
SRCDIR=src
OBJDIR=bin
# Use variables for source and object files
ip-lookup: $(SRCDIR)/main.c
$(CC) -o $(OBJDIR)/ip-lookup $(SRCDIR)/main.c $(CFLAGS)
ip-lookup: main.c
$(CC) -o ip-lookup main.c $(CFLAGS)

1
build.sh
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gcc -o ip-lookup main.c -lcurl -lcjson

86
main.c
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@ -1,86 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include <cjson/cJSON.h>
static size_t write_callback(void *contents, size_t size, size_t nmemb, void *userp) {
size_t realsize = size * nmemb;
((char *)userp)[realsize] = 0;
strcat(userp, contents);
return realsize;
}
int main(int argc, char *argv[]) {
if (argc != 2) {
printf("Usage: %s <IP_ADDRESS>\n", argv[0]);
return 1;
}
char url[256] = "http://ip-api.com/json/";
strcat(url, argv[1]);
CURL *curl;
CURLcode res;
char buffer[2048] = {0};
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if (!curl) {
fprintf(stderr, "Error: Failed to initialize libcurl.\n");
return 1;
}
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, buffer);
res = curl_easy_perform(curl);
if (res != CURLE_OK) {
fprintf(stderr, "Error: Failed to fetch data from ip-api.com: %s\n", curl_easy_strerror(res));
curl_easy_cleanup(curl);
return 1;
}
curl_easy_cleanup(curl);
curl_global_cleanup();
cJSON *json = cJSON_Parse(buffer);
if (!json) {
fprintf(stderr, "Error: Failed to parse JSON data.\n");
return 1;
}
cJSON *status = cJSON_GetObjectItem(json, "status");
if (status && cJSON_IsString(status) && strcmp(status->valuestring, "fail") == 0) {
fprintf(stderr, "Error: Failed to fetch data for IP address %s\n", argv[1]);
cJSON_Delete(json);
return 1;
}
cJSON *city = cJSON_GetObjectItem(json, "city");
cJSON *regionName = cJSON_GetObjectItem(json, "regionName");
cJSON *country = cJSON_GetObjectItem(json, "country");
cJSON *timezone = cJSON_GetObjectItem(json, "timezone");
cJSON *zip = cJSON_GetObjectItem(json, "zip");
cJSON *isp = cJSON_GetObjectItem(json, "isp");
cJSON *org = cJSON_GetObjectItem(json, "org");
cJSON *as = cJSON_GetObjectItem(json, "as");
cJSON *hostname = cJSON_GetObjectItem(json, "hostName");
printf("Hostname: %s\n", hostname ? hostname->valuestring : "Unknown");
printf("City: %s\n", city ? city->valuestring : "Unknown");
printf("Region: %s\n", regionName ? regionName->valuestring : "Unknown");
printf("Country: %s\n", country ? country->valuestring : "Unknown");
printf("Time Zone: %s\n", timezone ? timezone->valuestring : "Unknown");
printf("ZIP: %s\n", zip ? zip->valuestring : "Unknown");
printf("ISP: %s\n", isp ? isp->valuestring : "Unknown");
printf("Organization: %s\n", org ? org->valuestring : "Unknown");
printf("AS: %s\n", as ? as->valuestring : "Unknown");
cJSON_Delete(json);
return 0;
}

1
src/main.c
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@ -1 +0,0 @@
/home/sweat/gitprojects/ip-lookup/main.c

86
src/main.c Normal file
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@ -0,0 +1,86 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include <cjson/cJSON.h>
static size_t write_callback(void *contents, size_t size, size_t nmemb, void *userp) {
size_t realsize = size * nmemb;
((char *)userp)[realsize] = 0;
strcat(userp, contents);
return realsize;
}
int main(int argc, char *argv[]) {
if (argc != 2) {
printf("Usage: %s <IP_ADDRESS>\n", argv[0]);
return 1;
}
char url[256] = "http://ip-api.com/json/";
strcat(url, argv[1]);
CURL *curl;
CURLcode res;
char buffer[2048] = {0};
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if (!curl) {
fprintf(stderr, "Error: Failed to initialize libcurl.\n");
return 1;
}
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, buffer);
res = curl_easy_perform(curl);
if (res != CURLE_OK) {
fprintf(stderr, "Error: Failed to fetch data from ip-api.com: %s\n", curl_easy_strerror(res));
curl_easy_cleanup(curl);
return 1;
}
curl_easy_cleanup(curl);
curl_global_cleanup();
cJSON *json = cJSON_Parse(buffer);
if (!json) {
fprintf(stderr, "Error: Failed to parse JSON data.\n");
return 1;
}
cJSON *status = cJSON_GetObjectItem(json, "status");
if (status && cJSON_IsString(status) && strcmp(status->valuestring, "fail") == 0) {
fprintf(stderr, "Error: Failed to fetch data for IP address %s\n", argv[1]);
cJSON_Delete(json);
return 1;
}
cJSON *city = cJSON_GetObjectItem(json, "city");
cJSON *regionName = cJSON_GetObjectItem(json, "regionName");
cJSON *country = cJSON_GetObjectItem(json, "country");
cJSON *timezone = cJSON_GetObjectItem(json, "timezone");
cJSON *zip = cJSON_GetObjectItem(json, "zip");
cJSON *isp = cJSON_GetObjectItem(json, "isp");
cJSON *org = cJSON_GetObjectItem(json, "org");
cJSON *as = cJSON_GetObjectItem(json, "as");
cJSON *hostname = cJSON_GetObjectItem(json, "hostName");
printf("Hostname: %s\n", hostname ? hostname->valuestring : "Unknown");
printf("City: %s\n", city ? city->valuestring : "Unknown");
printf("Region: %s\n", regionName ? regionName->valuestring : "Unknown");
printf("Country: %s\n", country ? country->valuestring : "Unknown");
printf("Time Zone: %s\n", timezone ? timezone->valuestring : "Unknown");
printf("ZIP: %s\n", zip ? zip->valuestring : "Unknown");
printf("ISP: %s\n", isp ? isp->valuestring : "Unknown");
printf("Organization: %s\n", org ? org->valuestring : "Unknown");
printf("AS: %s\n", as ? as->valuestring : "Unknown");
cJSON_Delete(json);
return 0;
}