Remove use of large BUFSIZ for buffers and use the proper struct sizes.

This greatly helps threaded libpq programs.

src/interfaces/libpq/fe-auth.c

@@ -10,7 +10,7 @@
  * exceed INITIAL_EXPBUFFER_SIZE (currently 256 bytes).
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-auth.c,v 1.91 2004/08/29 04:13:12 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-auth.c,v 1.92 2004/09/27 23:38:45 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -749,7 +749,7 @@ fe_getauthname(char *PQerrormsg)
 		if (GetUserName(username, &namesize))
 			name = username;
 #else
-		char		pwdbuf[BUFSIZ];
+		char		pwdbuf[sizeof(struct passwd)];
 		struct passwd pwdstr;
 		struct passwd *pw = NULL;
 

src/interfaces/libpq/fe-secure.c

@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-secure.c,v 1.52 2004/09/26 22:51:49 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-secure.c,v 1.53 2004/09/27 23:38:45 momjian Exp $
  *
  * NOTES
  *	  [ Most of these notes are wrong/obsolete, but perhaps not all ]
@@ -512,7 +512,7 @@ verify_peer(PGconn *conn)
 
 	{
 		struct hostent hpstr;
-		char		buf[BUFSIZ];
+		char		buf[sizeof(struct hostent)];
 		int			herrno = 0;
 
 		/*
@@ -598,7 +598,7 @@ load_dh_file(int keylength)
 #ifdef WIN32
 	return NULL;
 #else
-	char		pwdbuf[BUFSIZ];
+	char		pwdbuf[sizeof(struct passwd)];
 	struct passwd pwdstr;
 	struct passwd *pwd = NULL;
 	FILE	   *fp;
@@ -745,7 +745,7 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
 #ifdef WIN32
 	return 0;
 #else
-	char		pwdbuf[BUFSIZ];
+	char		pwdbuf[sizeof(struct passwd)];
 	struct passwd pwdstr;
 	struct passwd *pwd = NULL;
 	struct stat buf,
@@ -952,7 +952,7 @@ initialize_SSL(PGconn *conn)
 {
 #ifndef WIN32
 	struct stat buf;
-	char		pwdbuf[BUFSIZ];
+	char		pwdbuf[sizeof(struct passwd)];
 	struct passwd pwdstr;
 	struct passwd *pwd = NULL;
 	char		fnbuf[MAXPGPATH];

src/port/getaddrinfo.c

@@ -12,7 +12,7 @@
  * Copyright (c) 2003, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/port/getaddrinfo.c,v 1.13 2004/09/27 23:24:45 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/port/getaddrinfo.c,v 1.14 2004/09/27 23:39:14 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -85,7 +85,7 @@ getaddrinfo(const char *node, const char *service,
 
 #ifdef FRONTEND
 			struct hostent hpstr;
-			char		buf[BUFSIZ];
+			char		buf[sizeof(struct hostent)];
 			int			herrno = 0;
 
 			pqGethostbyname(node, &hpstr, buf, sizeof(buf),

src/port/thread.c

@@ -7,7 +7,7 @@
  *
  * Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/port/thread.c,v 1.26 2004/09/27 23:24:45 momjian Exp $
+ * $PostgreSQL: pgsql/src/port/thread.c,v 1.27 2004/09/27 23:39:14 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -103,7 +103,6 @@ pqGetpwuid(uid_t uid, struct passwd * resultbuf, char *buffer,
 	/* POSIX version */
 	getpwuid_r(uid, resultbuf, buffer, buflen, result);
 #else
-
 	/*
 	 * Early POSIX draft of getpwuid_r() returns 'struct passwd *'.
 	 * getpwuid_r(uid, resultbuf, buffer, buflen)
@@ -111,7 +110,6 @@ pqGetpwuid(uid_t uid, struct passwd * resultbuf, char *buffer,
 	*result = getpwuid_r(uid, resultbuf, buffer, buflen);
 #endif
 #else
-
 	/* no getpwuid_r() available, just use getpwuid() */
 	*result = getpwuid(uid);
 #endif