Attempt merging from 6.3.24.

[~andy/fetchmail] / socket.c

diff --git a/socket.c b/socket.c
index 3e4a3acd68390b721a72597e020704f709519ab7..1f90efe8d89dbece28b43a14e540a019cfeba249 100644 (file)
--- a/socket.c
+++ b/socket.c
@@ -10,68 +10,36 @@
 #include <errno.h>
 #include <string.h>
 #include <ctype.h> /* isspace() */
-#ifdef HAVE_MEMORY_H
-#include <memory.h>
-#endif /* HAVE_MEMORY_H */
 #include <sys/types.h>
 #include <sys/stat.h>
-#ifndef HAVE_NET_SOCKET_H
 #include <sys/socket.h>
-#else
-#include <net/socket.h>
-#endif
 #include <sys/un.h>
 #include <netinet/in.h>
-#ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
-#endif
 #include <netdb.h>
-#if defined(STDC_HEADERS)
 #include <stdlib.h>
-#endif
-#if defined(HAVE_UNISTD_H)
 #include <unistd.h>
-#endif
-#if defined(HAVE_STDARG_H)
 #include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-#  include <sys/time.h>
-# else
-#  include <time.h>
-# endif
-#endif
+#include <sys/time.h>
+#include <time.h>
 
 #include "socket.h"
 #include "fetchmail.h"
 #include "getaddrinfo.h"
-#include "i18n.h"
+#include "gettext.h"
 #include "sdump.h"
 
-/* Defines to allow BeOS and Cygwin to play nice... */
-#ifdef __BEOS__
-static char peeked;
-#define fm_close(a)  closesocket(a)
-#define fm_write(a,b,c)  send(a,b,c,0)
-#define fm_peek(a,b,c)   recv(a,b,c,0)
-#define fm_read(a,b,c)   recv(a,b,c,0)
-#else
-#define fm_close(a)  close(a)
+/* Defines to allow Cygwin to play nice... */
+#define fm_close(a)     close(a)
 #define fm_write(a,b,c)  write(a,b,c)
 #define fm_peek(a,b,c)   recv(a,b,c, MSG_PEEK)
+
 #ifdef __CYGWIN__
 #define fm_read(a,b,c)   cygwin_read(a,b,c)
 static ssize_t cygwin_read(int sock, void *buf, size_t count);
 #else /* ! __CYGWIN__ */
 #define fm_read(a,b,c)   read(a,b,c)
 #endif /* __CYGWIN__ */
-#endif
 
 /* We need to define h_errno only if it is not already */
 #ifndef h_errno
@@ -80,7 +48,6 @@ extern int h_errno;
 # endif
 #endif /* ndef h_errno */
 
-#ifdef HAVE_SOCKETPAIR
 static char *const *parse_plugin(const char *plugin, const char *host, const char *service)
 {
        char **argvec;
@@ -134,6 +101,7 @@ static char *const *parse_plugin(const char *plugin, const char *host, const cha
        if (!argvec)
        {
                report(stderr, GT_("fetchmail: malloc failed\n"));
+               free(plugin_copy);
                return NULL;
        }
        memset(argvec, 0, s);
@@ -198,7 +166,6 @@ static int handle_plugin(const char *host,
     (void) close(fds[0]);
     return fds[1];
 }
-#endif /* HAVE_SOCKETPAIR */
 
 /** Set socket to SO_KEEPALIVE. \return 0 for success. */
 int SockKeepalive(int sock) {
@@ -221,7 +188,7 @@ int UnixOpen(const char *path)
        return -1;
     }
 
-    /* Socket opened saved. Usefull if connect timeout 
+    /* Socket opened saved. Useful if connect timeout
      * because it can be closed.
      */
     mailserver_socket_temp = sock;
@@ -249,10 +216,8 @@ int SockOpen(const char *host, const char *service,
     int ord;
     char errbuf[8192] = "";
 
-#ifdef HAVE_SOCKETPAIR
     if (plugin)
        return handle_plugin(host,service,plugin);
-#endif /* HAVE_SOCKETPAIR */
 
     memset(&req, 0, sizeof(struct addrinfo));
     req.ai_socktype = SOCK_STREAM;
@@ -343,32 +308,19 @@ int SockOpen(const char *host, const char *service,
     return i;
 }
 
-
-#if defined(HAVE_STDARG_H)
 int SockPrintf(int sock, const char* format, ...)
 {
-#else
-int SockPrintf(sock,format,va_alist)
-int sock;
-char *format;
-va_dcl {
-#endif
-
     va_list ap;
     char buf[8192];
 
-#if defined(HAVE_STDARG_H)
     va_start(ap, format) ;
-#else
-    va_start(ap);
-#endif
     vsnprintf(buf, sizeof(buf), format, ap);
     va_end(ap);
     return SockWrite(sock, buf, strlen(buf));
-
 }
 
 #ifdef SSL_ENABLE
+#define OPENSSL_NO_SSL_INTERN 1
 #include <openssl/ssl.h>
 #include <openssl/err.h>
 #include <openssl/pem.h>
@@ -415,14 +367,6 @@ int SockRead(int sock, char *buf, int len)
 
     if (--len < 1)
        return(-1);
-#ifdef __BEOS__
-    if (peeked != 0){
-        (*bp) = peeked;
-        bp++;
-        len--;
-        peeked = 0;
-    }
-#endif        
     do {
        /* 
         * The reason for these gymnastics is that we want two things:
@@ -485,18 +429,12 @@ int SockRead(int sock, char *buf, int len)
 #endif /* SSL_ENABLE */
        {
 
-#ifdef __BEOS__
-           if ((n = fm_read(sock, bp, 1)) <= 0)
-#else
            if ((n = fm_peek(sock, bp, len)) <= 0)
-#endif
                return (-1);
            if ((newline = (char *)memchr(bp, '\n', n)) != NULL)
                n = newline - bp + 1;
-#ifndef __BEOS__
            if ((n = fm_read(sock, bp, n)) == -1)
                return(-1);
-#endif /* __BEOS__ */
        }
        bp += n;
        len -= n;
@@ -551,9 +489,6 @@ int SockPeek(int sock)
        if (n == -1)
                return -1;
 
-#ifdef __BEOS__
-    peeked = ch;
-#endif
     return(ch);
 }
 
@@ -844,7 +779,6 @@ int SSLOpen(int sock, char *mycert, char *mykey, const char *myproto, int certck
 {
         struct stat randstat;
         int i;
-       long sslopts = SSL_OP_ALL;
 
        SSL_load_error_strings();
        SSL_library_init();
@@ -874,21 +808,14 @@ int SSLOpen(int sock, char *mycert, char *mykey, const char *myproto, int certck
        /* Make sure a connection referring to an older context is not left */
        _ssl_context[sock] = NULL;
        if(myproto) {
-               if(!strcasecmp("ssl2",myproto)) {
-#if HAVE_DECL_SSLV2_CLIENT_METHOD + 0 > 0
-                       _ctx[sock] = SSL_CTX_new(SSLv2_client_method());
-#else
-                       report(stderr, GT_("Your operating system does not support SSLv2.\n"));
-                       return -1;
-#endif
-               } else if(!strcasecmp("ssl3",myproto)) {
+               if(!strcasecmp("ssl3",myproto)) {
                        _ctx[sock] = SSL_CTX_new(SSLv3_client_method());
                } else if(!strcasecmp("tls1",myproto)) {
                        _ctx[sock] = SSL_CTX_new(TLSv1_client_method());
                } else if (!strcasecmp("ssl23",myproto)) {
                        myproto = NULL;
                } else {
-                       fprintf(stderr,GT_("Invalid SSL protocol '%s' specified, using default (SSLv23).\n"), myproto);
+                       fprintf(stderr,GT_("Invalid SSL protocol '%s' specified, using default (SSL23).\n"), myproto);
                        myproto = NULL;
                }
        }
@@ -900,13 +827,7 @@ int SSLOpen(int sock, char *mycert, char *mykey, const char *myproto, int certck
                return(-1);
        }
 
-       {
-           char *tmp = getenv("FETCHMAIL_DISABLE_CBC_IV_COUNTERMEASURE");
-           if (tmp == NULL || *tmp == '\0' || strspn(tmp, " \t") == strlen(tmp))
-               sslopts &= ~ SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
-       }
-
-       SSL_CTX_set_options(_ctx[sock], sslopts);
+       SSL_CTX_set_options(_ctx[sock], (SSL_OP_ALL | SSL_OP_NO_SSLv2) & ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
 
        if (certck) {
                SSL_CTX_set_verify(_ctx[sock], SSL_VERIFY_PEER, SSL_ck_verify_callback);