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Only free memory if environment value is replaced.

This commit is contained in:
Bruce Momjian 1997-05-23 01:53:42 +00:00
parent 658f229ac6
commit 449e575595
1 changed files with 8 additions and 3 deletions
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11
src/bin/psql/psql.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.63 1997/05/23 00:20:20 momjian Exp $
* $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.64 1997/05/23 01:53:42 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -837,6 +837,7 @@ do_connect(const char *new_dbname,
else {
PGconn *olddb = settings->db;
static char *userenv = NULL;
char *old_userenv = NULL;
printf("closing connection to database: %s\n", dbname);
if (new_user != NULL) {
@ -845,10 +846,14 @@ do_connect(const char *new_dbname,
so we have to do it via PGUSER
*/
if (userenv != NULL)
free(userenv);
old_userenv = userenv;
userenv = malloc(strlen("PGUSER=") + strlen(new_user) + 1);
sprintf(userenv,"PGUSER=%s",new_user);
putenv(userenv); /*Solaris putenv() continues to use memory in env*/
/* putenv() may continue to use memory as part of environment */
putenv(userenv);
/* can delete old memory if we malloc'ed it */
if (old_userenv != NULL)
free(old_userenv);
}
settings->db = PQsetdb(PQhost(olddb), PQport(olddb),
NULL, NULL, new_dbname);