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Adjust getpwuid() fix commit to display errno string on failure 

This adjusts patch 613c6d26bd.
This commit is contained in:
Bruce Momjian 2014-03-28 12:50:11 -04:00
parent a87c729153
commit e1827012ed
1 changed files with 7 additions and 8 deletions
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15
src/backend/libpq/auth.c
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@ -1559,9 +1559,8 @@ auth_peer(hbaPort *port)
char ident_user[IDENT_USERNAME_MAX + 1];
uid_t uid;
gid_t gid;
struct passwd *pass;
struct passwd *pw;
errno = 0;
if (getpeereid(port->sock, &uid, &gid) != 0)
{
/* Provide special error message if getpeereid is a stub */
@ -1576,17 +1575,17 @@ auth_peer(hbaPort *port)
return STATUS_ERROR;
}
pass = getpwuid(uid);
if (pass == NULL)
errno = 0; /* clear errno before call */
pw = getpwuid(uid);
if (!pw)
{
ereport(LOG,
(errmsg("local user with ID %d does not exist",
(int) uid)));
(errmsg("failed to look up local user id %ld: %s",
(long) uid, errno ? strerror(errno) : _("user does not exist"))));
return STATUS_ERROR;
}
strlcpy(ident_user, pass->pw_name, IDENT_USERNAME_MAX + 1);
strlcpy(ident_user, pw->pw_name, IDENT_USERNAME_MAX + 1);
return check_usermap(port->hba->usermap, port->user_name, ident_user, false);
}