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	slstatus-leakedip-20230105-c919def.diff (3664B)
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	1 From 82914c53f777c3d69bb593a0108c6326f61a6d86 Mon Sep 17 00:00:00 2001
	2 From: Matvey <[email protected]>
	3 Date: Thu, 5 Jan 2023 03:34:23 +0300
	4 Subject: [PATCH] added leaked_ip function - ip as seen by internet
	5
	6 ---
	7 components/ip.c \| 80 +++++++++++++++++++++++++++++++++++++++++++++++--
	8 config.def.h \| 1 +
	9 slstatus.h \| 1 +
	10 3 files changed, 80 insertions(+), 2 deletions(-)
	11
	12 diff --git a/components/ip.c b/components/ip.c
	13 index 9476549..bed3003 100644
	14 --- a/components/ip.c
	15 +++ b/components/ip.c
	16 @@ -1,4 +1,6 @@
	17 /* See LICENSE file for copyright and license details. */
	18 +#include <errno.h>
	19 +#include <unistd.h>
	20 #include <ifaddrs.h>
	21 #include <netdb.h>
	22 #include <stdio.h>
	23 @@ -27,9 +29,9 @@ ip(const char *interface, unsigned short sa_family)
	24 }
	25
	26 for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
	27 - if (!ifa->ifa_addr)
	28 + if (!ifa->ifa_addr) {
	29 continue;
	30 -
	31 + }
	32 s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_i…
	33 host, NI_MAXHOST, NULL, 0, NI_NUMERICHO…
	34 if (!strcmp(ifa->ifa_name, interface) &&
	35 @@ -59,3 +61,77 @@ ipv6(const char *interface)
	36 {
	37 return ip(interface, AF_INET6);
	38 }
	39 +
	40 +const char *
	41 +leaked_ip(void)
	42 +{
	43 + static const char *check_domain = "ip-api.com";
	44 + static const char *check_request =
	45 + "GET /line/?fields=query,country HTTP/1.1\r\n"
	46 + "Host: ip-api.com\r\n\r\n";
	47 + static const char *bad_addr = "X.X.X.X(Unavailable)";
	48 +
	49 + struct addrinfo *ai;
	50 + int remote_fd;
	51 + char *p;
	52 + int s, n;
	53 + int gai_errno;
	54 +
	55 + if ((gai_errno = getaddrinfo(check_domain, "http", NULL, &ai)))
	56 + {
	57 + warn("Can't resolve domain %s: %s", check_domain, gai_s…
	58 + return bad_addr;
	59 + }
	60 + if ((remote_fd = socket(ai->ai_family, ai->ai_socktype, 0)) == …
	61 + {
	62 + freeaddrinfo(ai);
	63 + warn("socket:");
	64 + return bad_addr;
	65 + }
	66 +
	67 + if (connect(remote_fd, ai->ai_addr, ai->ai_addrlen) == -1)
	68 + {
	69 + freeaddrinfo(ai);
	70 + close(remote_fd);
	71 + warn("connect:", check_domain);
	72 + return bad_addr;
	73 + }
	74 + freeaddrinfo(ai);
	75 +
	76 + // send request
	77 + n = strlen(check_request);
	78 + p = (char *) check_request;
	79 + while (n)
	80 + {
	81 + s = write(remote_fd, p, n);
	82 +
	83 + if (s == -1)
	84 + {
	85 + if (errno == EINTR)
	86 + continue;
	87 + close(remote_fd);
	88 + warn("write:");
	89 + return bad_addr;
	90 + }
	91 + n -= s;
	92 + p += s;
	93 + }
	94 +
	95 + p = buf;
	96 + n = sizeof(buf);
	97 + s = read(remote_fd, p, n);
	98 + close(remote_fd);
	99 + p = strstr(buf, "\r\n\r\n");
	100 + if (!p)
	101 + {
	102 + warn("Can't resolve %s: Bad response from server", chec…
	103 + return bad_addr;
	104 + }
	105 + p += 4;
	106 + sscanf(p, "%*s%s", buf);
	107 + strcat(buf, "(");
	108 + sscanf(p, "%s", buf+strlen(buf));
	109 + strcat(buf, ")");
	110 +
	111 + return buf;
	112 +}
	113 diff --git a/config.def.h b/config.def.h
	114 index d805331..75c282b 100644
	115 --- a/config.def.h
	116 +++ b/config.def.h
	117 @@ -31,6 +31,7 @@ static const char unknown_str[] = "n/a";
	118 * hostname hostname NULL
	119 * ipv4 IPv4 address interface name (…
	120 * ipv6 IPv6 address interface name (…
	121 + * leaked_ip IP address leaked to Internet NULL
	122 * kernel_release `uname -r` NULL
	123 * keyboard_indicators caps/num lock indicators format string (c…
	124 * see keyboard_ind…
	125 diff --git a/slstatus.h b/slstatus.h
	126 index 8ef5874..6f67ccd 100644
	127 --- a/slstatus.h
	128 +++ b/slstatus.h
	129 @@ -30,6 +30,7 @@ const char hostname(const char unused);
	130 /* ip */
	131 const char ipv4(const char interface);
	132 const char ipv6(const char interface);
	133 +const char *leaked_ip(void);
	134
	135 /* kernel_release */
	136 const char kernel_release(const char unused);
	137 --
	138 2.35.1
	139