diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index 4b8fbecb48..a84db7b4d0 100644
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.5 1996/08/06 16:16:45 scrappy Exp $
+ *    $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.6 1996/08/10 00:22:44 scrappy Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -35,7 +35,8 @@ strdup(const char *string)
 {
     char *nstr;
 
-    nstr = strcpy((char *)malloc(strlen(string)+1), string);
+  if ((nstr = malloc(strlen(string)+1)) != NULL)
+      strcpy(nstr, string);
     return nstr;
 }
 #endif
@@ -133,7 +134,7 @@ PQsetdb(const char *pghost, const char* pgport, const char* pgoptions, const cha
       conn->dbName = strdup(tmp);
     } else {
       char errorMessage[ERROR_MSG_LENGTH];
-      if (tmp = fe_getauthname(errorMessage)) {
+      if ((tmp = fe_getauthname(errorMessage)) != 0) {
         conn->dbName = strdup(tmp);
         free(tmp);
       } else {
diff --git a/src/interfaces/libpq/fe-exec.c b/src/interfaces/libpq/fe-exec.c
index 7bf3527f9a..3959c07903 100644
--- a/src/interfaces/libpq/fe-exec.c
+++ b/src/interfaces/libpq/fe-exec.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.13 1996/08/06 16:16:46 scrappy Exp $
+ *    $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.14 1996/08/10 00:22:48 scrappy Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -131,7 +131,7 @@ getTuple(PGconn *conn, PGresult* result, int binary)
   int 	bitcnt = 0; 	   /* number of bits examined in current byte */
   int 	vlen;		   /* length of the current field value */
   FILE *pfin = conn->Pfin;
-  FILE *Pfdebug = conn->Pfdebug;
+  FILE *pfdebug = conn->Pfdebug;
 
   PGresAttValue* tup;
 
@@ -145,7 +145,7 @@ getTuple(PGconn *conn, PGresult* result, int binary)
   if ( (nfields % BYTELEN) > 0)
     nbytes++;
 
-  if (pqGetnchar(bitmap, nbytes, pfin, Pfdebug) == 1){
+  if (pqGetnchar(bitmap, nbytes, pfin, pfdebug) == 1){
       sprintf(conn->errorMessage,
 	      "Error reading null-values bitmap from tuple data stream\n");
       return NULL;
@@ -164,7 +164,7 @@ getTuple(PGconn *conn, PGresult* result, int binary)
     }
     else {
       /* get the value length (the first four bytes are for length) */
-      pqGetInt(&vlen, VARHDRSZ, pfin, Pfdebug);
+      pqGetInt(&vlen, VARHDRSZ, pfin, pfdebug);
       if (binary == 0) {
 	vlen = vlen - VARHDRSZ;
 	}
@@ -174,7 +174,7 @@ getTuple(PGconn *conn, PGresult* result, int binary)
       tup[i].value = (char*) malloc(vlen + 1);
       /* read in the value; */
       if (vlen > 0)
-	  pqGetnchar((char*)(tup[i].value), vlen, pfin, Pfdebug);
+	  pqGetnchar((char*)(tup[i].value), vlen, pfin, pfdebug);
       tup[i].value[vlen] = '\0';
     }
     /* get the appropriate bitmap */
@@ -241,7 +241,7 @@ makePGresult(PGconn* conn, char* pname)
   PGresAttValue* newTup;
 
   FILE* pfin = conn->Pfin;
-  FILE* Pfdebug = conn->Pfdebug;
+  FILE* pfdebug = conn->Pfdebug;
 
   result = makeEmptyPGresult(conn, PGRES_TUPLES_OK);
   
@@ -249,7 +249,7 @@ makePGresult(PGconn* conn, char* pname)
   /* id of the stream is 'T' to start with */
 
   /* the next two bytes are the number of fields  */
-  if (pqGetInt(&nfields, 2, pfin, Pfdebug) == 1) {
+  if (pqGetInt(&nfields, 2, pfin, pfdebug) == 1) {
     sprintf(conn->errorMessage,
 	    "could not get the number of fields from the 'T' message\n");
     goto makePGresult_badResponse_return;
@@ -268,9 +268,9 @@ makePGresult(PGconn* conn, char* pname)
     int adtid;
     int adtsize;
     
-    if ( pqGets(typName, MAX_MESSAGE_LEN, pfin, Pfdebug) ||
-	pqGetInt(&adtid, 4, pfin, Pfdebug) ||
-	pqGetInt(&adtsize, 2, pfin, Pfdebug)) {
+    if ( pqGets(typName, MAX_MESSAGE_LEN, pfin, pfdebug) ||
+	pqGetInt(&adtid, 4, pfin, pfdebug) ||
+	pqGetInt(&adtsize, 2, pfin, pfdebug)) {
       sprintf(conn->errorMessage,
 	      "error reading type information from the 'T' message\n");
       goto makePGresult_badResponse_return;
@@ -281,7 +281,7 @@ makePGresult(PGconn* conn, char* pname)
    result->attDescs[i].adtsize = adtsize; /* casting from int to int2 here */
   }
 
-  id = pqGetc(pfin,Pfdebug);
+  id = pqGetc(pfin,pfdebug);
 
   /* process the data stream until we're finished */
   while(!done) {
@@ -306,12 +306,12 @@ makePGresult(PGconn* conn, char* pname)
     case 'C': /* end of portal tuple stream */
       {
       char command[MAX_MESSAGE_LEN];
-      pqGets(command,MAX_MESSAGE_LEN, pfin, Pfdebug); /* read the command tag */
+      pqGets(command,MAX_MESSAGE_LEN, pfin, pfdebug); /* read the command tag */
       done = 1;
     }
       break;
     case 'E': /* errors */
-      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, Pfdebug) == 1) {
+      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, pfdebug) == 1) {
 	sprintf(conn->errorMessage,
 		"Error return detected from backend, but error message cannot be read");
       }
@@ -319,7 +319,7 @@ makePGresult(PGconn* conn, char* pname)
       return result;
       break;
     case 'N': /* notices from the backend */
-      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, Pfdebug) == 1) {
+      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, pfdebug) == 1) {
 	sprintf(conn->errorMessage,
 	"Notice return detected from backend, but error message cannot be read");
       }   else
@@ -370,7 +370,7 @@ PQexec(PGconn* conn, const char* query)
   char cmdStatus[MAX_MESSAGE_LEN];
   char pname[MAX_MESSAGE_LEN]; /* portal name */
   PGnotify *newNotify;
-  FILE *pfin, *pfout, *Pfdebug;
+  FILE *pfin, *pfout, *pfdebug;
 
   pname[0]='\0';
 
@@ -380,9 +380,9 @@ PQexec(PGconn* conn, const char* query)
     return NULL;
   }
 
-  Pfin = conn->Pfin;
-  Pfout = conn->Pfout;
-  Pfdebug = conn->Pfdebug;
+  pfin = conn->Pfin;
+  pfout = conn->Pfout;
+  pfdebug = conn->Pfdebug;
 
   /*clear the error string */
   conn->errorMessage[0] = '\0';
@@ -397,7 +397,7 @@ PQexec(PGconn* conn, const char* query)
   sprintf(buffer,"Q%s",query);
 
   /* send the query to the backend; */
-  if (pqPuts(buffer,pfout, Pfdebug) == 1) {
+  if (pqPuts(buffer,pfout, pfdebug) == 1) {
       (void) sprintf(conn->errorMessage,
 		     "PQexec() -- while sending query:  %s\n-- fprintf to Pfout failed: errno=%d\n%s\n",
 		     query, errno,strerror(errno));
@@ -412,7 +412,7 @@ PQexec(PGconn* conn, const char* query)
   while (1) {
 
     /* read the result id */
-    id = pqGetc(pfin,Pfdebug);
+    id = pqGetc(pfin,pfdebug);
     if (id == EOF) {
       /* hmm,  no response from the backend-end, that's bad */
       (void) sprintf(conn->errorMessage,
@@ -423,14 +423,14 @@ PQexec(PGconn* conn, const char* query)
     switch (id) {
     case 'A': 
 	newNotify = (PGnotify*)malloc(sizeof(PGnotify));
-	pqGetInt(&(newNotify->be_pid), 4, pfin, Pfdebug);
-	pqGets(newNotify->relname, NAMEDATALEN, pfin, Pfdebug);
+	pqGetInt(&(newNotify->be_pid), 4, pfin, pfdebug);
+	pqGets(newNotify->relname, NAMEDATALEN, pfin, pfdebug);
 	DLAddTail(conn->notifyList, DLNewElem(newNotify));
 	/* async messages are piggy'ed back on other messages,
 	   so we stay in the while loop for other messages */
 	break;
     case 'C': /* portal query command, no tuples returned */
-      if (pqGets(cmdStatus, MAX_MESSAGE_LEN, pfin, Pfdebug) == 1) {
+      if (pqGets(cmdStatus, MAX_MESSAGE_LEN, pfin, pfdebug) == 1) {
 	sprintf(conn->errorMessage,
 		"PQexec() -- query command completed, but return message from backend cannot be read");
 	return (PGresult*)NULL;
@@ -444,10 +444,10 @@ PQexec(PGconn* conn, const char* query)
 	*/
 	clear = 0;
 
-	pqPuts("Q ",pfout,Pfdebug); /* send an empty query */
+	pqPuts("Q ",pfout,pfdebug); /* send an empty query */
 	while (!clear)
 	  {
-	    if (pqGets(buffer,ERROR_MSG_LENGTH,pfin,Pfdebug) == 1)
+	    if (pqGets(buffer,ERROR_MSG_LENGTH,pfin,pfdebug) == 1)
 	      clear = 1;
 	    clear = (buffer[0] == 'I');
 	  }
@@ -457,7 +457,7 @@ PQexec(PGconn* conn, const char* query)
       }
       break;
     case 'E': /* error return */
-      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, Pfdebug) == 1) {
+      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, pfdebug) == 1) {
 	(void) sprintf(conn->errorMessage,
 		       "PQexec() -- error return detected from backend, but error message cannot be read");
       }
@@ -467,7 +467,7 @@ PQexec(PGconn* conn, const char* query)
       /* read the throw away the closing '\0' */
       {
 	int c;
-	if ((c = pqGetc(pfin,Pfdebug)) != '\0') {
+	if ((c = pqGetc(pfin,pfdebug)) != '\0') {
 	  fprintf(stderr,"error!, unexpected character %c following 'I'\n", c);
 	}
 	result = makeEmptyPGresult(conn, PGRES_EMPTY_QUERY);
@@ -475,7 +475,7 @@ PQexec(PGconn* conn, const char* query)
       }
       break;
     case 'N': /* notices from the backend */
-      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, Pfdebug) == 1) {
+      if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, pfdebug) == 1) {
 	sprintf(conn->errorMessage,
 		"PQexec() -- error return detected from backend, but error message cannot be read");
 	return (PGresult*)NULL;
@@ -484,7 +484,7 @@ PQexec(PGconn* conn, const char* query)
 	fprintf(stderr,"%s", conn->errorMessage);
       break;
     case 'P': /* synchronous (normal) portal */
-      pqGets(pname,MAX_MESSAGE_LEN,pfin, Pfdebug);  /* read in the portal name*/
+      pqGets(pname,MAX_MESSAGE_LEN,pfin, pfdebug);  /* read in the portal name*/
       break;
     case 'T': /* actual tuple results: */
       return makePGresult(conn, pname);
@@ -605,21 +605,21 @@ int
 PQendcopy(PGconn *conn)
 {
     char id;
-    FILE *pfin, *Pfdebug;
+    FILE *pfin, *pfdebug;
 
     if (!conn) return (int)NULL;
 
-    Pfin = conn->Pfin;
-    Pfdebug = conn->Pfdebug;
+    pfin = conn->Pfin;
+    pfdebug = conn->Pfdebug;
 
-    if ( (id = pqGetc(pfin,Pfdebug)) > 0)
+    if ( (id = pqGetc(pfin,pfdebug)) > 0)
 	return(0);
     switch (id) {
     case 'Z': /* backend finished the copy */
 	return(1);
     case 'E':
     case 'N':
-	if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, Pfdebug) == 1) {
+	if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, pfdebug) == 1) {
 	    sprintf(conn->errorMessage,
 		    "Error return detected from backend, but error message cannot be read");
 	}
@@ -1197,37 +1197,37 @@ PQfn(PGconn *conn,
      PQArgBlock *args,
      int nargs)
 {
-    FILE *pfin, *pfout, *Pfdebug;
+    FILE *pfin, *pfout, *pfdebug;
     int id;
     int i;
 
     if (!conn) return NULL;
 
-    Pfin = conn->Pfin;
-    Pfout = conn->Pfout;
-    Pfdebug = conn->Pfdebug;
+    pfin = conn->Pfin;
+    pfout = conn->Pfout;
+    pfdebug = conn->Pfdebug;
 
     /* clear the error string */
     conn->errorMessage[0] = '\0';
 
-    pqPuts("F ",pfout,Pfdebug);           /* function */
-    pqPutInt(fnid, 4, pfout, Pfdebug);    /* function id */
-    pqPutInt(nargs, 4, pfout, Pfdebug);	     /*	# of args */
+    pqPuts("F ",pfout,pfdebug);           /* function */
+    pqPutInt(fnid, 4, pfout, pfdebug);    /* function id */
+    pqPutInt(nargs, 4, pfout, pfdebug);	     /*	# of args */
 
     for (i = 0; i < nargs; ++i) { /*	len.int4 + contents	*/
-	pqPutInt(args[i].len, 4, pfout, Pfdebug);
+	pqPutInt(args[i].len, 4, pfout, pfdebug);
 	if (args[i].isint) {
-	    pqPutInt(args[i].u.integer, 4, pfout, Pfdebug);
+	    pqPutInt(args[i].u.integer, 4, pfout, pfdebug);
 	} else {
-	    pqPutnchar((char *)args[i].u.ptr, args[i].len, pfout, Pfdebug);
+	    pqPutnchar((char *)args[i].u.ptr, args[i].len, pfout, pfdebug);
 	}
     }
-    pqFlush(pfout, Pfdebug);
+    pqFlush(pfout, pfdebug);
 
-    id = pqGetc(pfin, Pfdebug);
+    id = pqGetc(pfin, pfdebug);
     if (id != 'V') {
 	if (id == 'E') {
-	    pqGets(conn->errorMessage,ERROR_MSG_LENGTH,pfin,Pfdebug);
+	    pqGets(conn->errorMessage,ERROR_MSG_LENGTH,pfin,pfdebug);
 	} else
 	    sprintf(conn->errorMessage,
 		    "PQfn: expected a 'V' from the backend. Got '%c' instead",
@@ -1235,19 +1235,19 @@ PQfn(PGconn *conn,
 	return makeEmptyPGresult(conn,PGRES_FATAL_ERROR);
     }
 
-    id = pqGetc(pfin, Pfdebug);
+    id = pqGetc(pfin, pfdebug);
     for (;;) {
 	int c;
 	switch (id) {
 	case 'G':		/* function returned properly */
-	    pqGetInt(actual_result_len,4,pfin,Pfdebug);
+	    pqGetInt(actual_result_len,4,pfin,pfdebug);
 	    if (result_is_int) {
-		pqGetInt(result_buf,4,pfin,Pfdebug);
+		pqGetInt(result_buf,4,pfin,pfdebug);
 	    } else {
 		pqGetnchar((char *) result_buf, *actual_result_len,
-			   pfin, Pfdebug);
+			   pfin, pfdebug);
 	    }
-	    c = pqGetc(pfin, Pfdebug); /* get the last '0'*/
+	    c = pqGetc(pfin, pfdebug); /* get the last '0'*/
 	    return makeEmptyPGresult(conn,PGRES_COMMAND_OK);
 	case 'E':
 	    sprintf(conn->errorMessage,
@@ -1255,7 +1255,7 @@ PQfn(PGconn *conn,
 	    return makeEmptyPGresult(conn,PGRES_FATAL_ERROR);
 	case 'N':
 	    /* print notice and go back to processing return values */
-	    if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, Pfdebug) == 1) {
+	    if (pqGets(conn->errorMessage, ERROR_MSG_LENGTH, pfin, pfdebug) == 1) {
 		sprintf(conn->errorMessage,
 			"Notice return detected from backend, but error message cannot be read");
 	    }   else