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140 lines
4.5 KiB
140 lines
4.5 KiB
diff -urN vsftpd-3.0.5-orig/postlogin.c vsftpd-3.0.5/postlogin.c
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--- vsftpd-3.0.5-orig/postlogin.c 2015-07-22 21:03:22.000000000 +0200
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+++ vsftpd-3.0.5/postlogin.c 2023-02-13 16:34:05.244467476 +0100
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@@ -27,4 +27,6 @@
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#include "ssl.h"
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#include "vsftpver.h"
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+#include <netdb.h>
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+#include <arpa/inet.h>
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#include "opts.h"
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@@ -628,9 +629,10 @@
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else
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{
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const void* p_v4addr = vsf_sysutil_sockaddr_ipv6_v4(s_p_sockaddr);
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+ static char result[INET_ADDRSTRLEN];
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if (p_v4addr)
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{
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- str_append_text(&s_pasv_res_str, vsf_sysutil_inet_ntoa(p_v4addr));
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+ str_append_text(&s_pasv_res_str, inet_ntop(AF_INET, p_v4addr, result, INET_ADDRSTRLEN));
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}
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else
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{
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diff -urN vsftpd-3.0.5-orig/sysutil.c vsftpd-3.0.5/sysutil.c
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--- vsftpd-3.0.5-orig/sysutil.c 2012-09-16 09:07:38.000000000 +0200
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+++ vsftpd-3.0.5/sysutil.c 2023-02-13 16:08:58.557153109 +0100
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@@ -2205,20 +2205,13 @@
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const struct sockaddr* p_sockaddr = &p_sockptr->u.u_sockaddr;
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if (p_sockaddr->sa_family == AF_INET)
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{
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- return inet_ntoa(p_sockptr->u.u_sockaddr_in.sin_addr);
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+ static char result[INET_ADDRSTRLEN];
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+ return inet_ntop(AF_INET, &p_sockptr->u.u_sockaddr_in.sin_addr, result, INET_ADDRSTRLEN);
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}
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else if (p_sockaddr->sa_family == AF_INET6)
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{
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- static char inaddr_buf[64];
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- const char* p_ret = inet_ntop(AF_INET6,
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- &p_sockptr->u.u_sockaddr_in6.sin6_addr,
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- inaddr_buf, sizeof(inaddr_buf));
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- inaddr_buf[sizeof(inaddr_buf) - 1] = '\0';
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- if (p_ret == NULL)
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- {
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- inaddr_buf[0] = '\0';
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- }
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- return inaddr_buf;
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+ static char result[INET6_ADDRSTRLEN];
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+ return inet_ntop(AF_INET6, &p_sockptr->u.u_sockaddr_in6.sin6_addr, result, INET6_ADDRSTRLEN);
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}
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else
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{
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@@ -2227,12 +2220,6 @@
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}
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}
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-const char*
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-vsf_sysutil_inet_ntoa(const void* p_raw_addr)
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-{
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- return inet_ntoa(*((struct in_addr*)p_raw_addr));
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-}
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-
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int
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vsf_sysutil_inet_aton(const char* p_text, struct vsf_sysutil_sockaddr* p_addr)
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{
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@@ -2241,7 +2228,7 @@
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{
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bug("bad family");
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}
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- if (inet_aton(p_text, &sin_addr))
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+ if (inet_pton(AF_INET, p_text, &sin_addr))
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{
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vsf_sysutil_memcpy(&p_addr->u.u_sockaddr_in.sin_addr,
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&sin_addr, sizeof(p_addr->u.u_sockaddr_in.sin_addr));
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@@ -2257,37 +2244,46 @@
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vsf_sysutil_dns_resolve(struct vsf_sysutil_sockaddr** p_sockptr,
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const char* p_name)
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{
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- struct hostent* hent = gethostbyname(p_name);
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- if (hent == NULL)
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+ struct addrinfo *result;
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+ struct addrinfo hints;
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+ int ret;
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+
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+ memset(&hints, 0, sizeof(struct addrinfo));
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+ hints.ai_family = AF_UNSPEC;
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+
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+ if ((ret = getaddrinfo(p_name, NULL, &hints, &result)) != 0)
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{
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+ fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(ret));
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die2("cannot resolve host:", p_name);
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}
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vsf_sysutil_sockaddr_clear(p_sockptr);
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- if (hent->h_addrtype == AF_INET)
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+ if (result->ai_family == AF_INET)
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{
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- unsigned int len = hent->h_length;
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+ unsigned int len = result->ai_addrlen;
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if (len > sizeof((*p_sockptr)->u.u_sockaddr_in.sin_addr))
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{
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len = sizeof((*p_sockptr)->u.u_sockaddr_in.sin_addr);
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}
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vsf_sysutil_sockaddr_alloc_ipv4(p_sockptr);
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vsf_sysutil_memcpy(&(*p_sockptr)->u.u_sockaddr_in.sin_addr,
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- hent->h_addr_list[0], len);
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+ &result->ai_addrlen, len);
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}
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- else if (hent->h_addrtype == AF_INET6)
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+ else if (result->ai_family == AF_INET6)
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{
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- unsigned int len = hent->h_length;
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+ unsigned int len = result->ai_addrlen;
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if (len > sizeof((*p_sockptr)->u.u_sockaddr_in6.sin6_addr))
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{
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len = sizeof((*p_sockptr)->u.u_sockaddr_in6.sin6_addr);
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}
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vsf_sysutil_sockaddr_alloc_ipv6(p_sockptr);
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vsf_sysutil_memcpy(&(*p_sockptr)->u.u_sockaddr_in6.sin6_addr,
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- hent->h_addr_list[0], len);
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+ &result->ai_addrlen, len);
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}
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else
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{
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- die("gethostbyname(): neither IPv4 nor IPv6");
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+ freeaddrinfo(result);
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+ die("getaddrinfo(): neither IPv4 nor IPv6");
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}
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+ freeaddrinfo(result);
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}
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diff -urN vsftpd-3.0.5-orig/sysutil.h vsftpd-3.0.5/sysutil.h
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--- vsftpd-3.0.5-orig/sysutil.h 2021-05-18 08:50:21.000000000 +0200
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+++ vsftpd-3.0.5/sysutil.h 2023-02-13 15:59:22.088331075 +0100
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@@ -277,7 +277,6 @@
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const char* vsf_sysutil_inet_ntop(
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const struct vsf_sysutil_sockaddr* p_sockptr);
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-const char* vsf_sysutil_inet_ntoa(const void* p_raw_addr);
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int vsf_sysutil_inet_aton(
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const char* p_text, struct vsf_sysutil_sockaddr* p_addr);
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