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Code

The correct min buffer size is

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INITIAL_EXPBUFFER_SIZE, not PQERRORMSG_LENGTH.

Backpatch only, the proper fix in HEAD is
to use PQExpBuffers everywhere.
This commit is contained in:
Magnus Hagander 2007-07-23 18:13:02 +00:00
parent 987b0664fb
commit b25d3e4db0
3 changed files with 22 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/interfaces/libpq/fe-auth.c
View File

@ -10,7 +10,7 @@
* exceed INITIAL_EXPBUFFER_SIZE (currently 256 bytes). * exceed INITIAL_EXPBUFFER_SIZE (currently 256 bytes).
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/interfaces/libpq/fe-auth.c,v 1.107.2.2 2006/03/06 17:59:42 momjian Exp $ * $PostgreSQL: pgsql/src/interfaces/libpq/fe-auth.c,v 1.107.2.3 2007/07/23 18:13:02 mha Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -130,7 +130,7 @@ pg_krb5_init(char *PQerrormsg, struct krb5_info *info)
retval = krb5_init_context(&(info->pg_krb5_context)); retval = krb5_init_context(&(info->pg_krb5_context));
if (retval) if (retval)
{ {
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"pg_krb5_init: krb5_init_context: %s\n", "pg_krb5_init: krb5_init_context: %s\n",
error_message(retval)); error_message(retval));
return STATUS_ERROR; return STATUS_ERROR;
@ -139,7 +139,7 @@ pg_krb5_init(char *PQerrormsg, struct krb5_info *info)
retval = krb5_cc_default(info->pg_krb5_context, &(info->pg_krb5_ccache)); retval = krb5_cc_default(info->pg_krb5_context, &(info->pg_krb5_ccache));
if (retval) if (retval)
{ {
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"pg_krb5_init: krb5_cc_default: %s\n", "pg_krb5_init: krb5_cc_default: %s\n",
error_message(retval)); error_message(retval));
krb5_free_context(info->pg_krb5_context); krb5_free_context(info->pg_krb5_context);
@ -150,7 +150,7 @@ pg_krb5_init(char *PQerrormsg, struct krb5_info *info)
&(info->pg_krb5_client)); &(info->pg_krb5_client));
if (retval) if (retval)
{ {
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"pg_krb5_init: krb5_cc_get_principal: %s\n", "pg_krb5_init: krb5_cc_get_principal: %s\n",
error_message(retval)); error_message(retval));
krb5_cc_close(info->pg_krb5_context, info->pg_krb5_ccache); krb5_cc_close(info->pg_krb5_context, info->pg_krb5_ccache);
@ -161,7 +161,7 @@ pg_krb5_init(char *PQerrormsg, struct krb5_info *info)
retval = krb5_unparse_name(info->pg_krb5_context, info->pg_krb5_client, &(info->pg_krb5_name)); retval = krb5_unparse_name(info->pg_krb5_context, info->pg_krb5_client, &(info->pg_krb5_name));
if (retval) if (retval)
{ {
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"pg_krb5_init: krb5_unparse_name: %s\n", "pg_krb5_init: krb5_unparse_name: %s\n",
error_message(retval)); error_message(retval));
krb5_free_principal(info->pg_krb5_context, info->pg_krb5_client); krb5_free_principal(info->pg_krb5_context, info->pg_krb5_client);
@ -224,7 +224,7 @@ pg_krb5_sendauth(char *PQerrormsg, int sock, const char *hostname, const char *s
if (!hostname) if (!hostname)
{ {
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"pg_krb5_sendauth: hostname must be specified for Kerberos authentication\n"); "pg_krb5_sendauth: hostname must be specified for Kerberos authentication\n");
return STATUS_ERROR; return STATUS_ERROR;
} }
@ -237,7 +237,7 @@ pg_krb5_sendauth(char *PQerrormsg, int sock, const char *hostname, const char *s
KRB5_NT_SRV_HST, &server); KRB5_NT_SRV_HST, &server);
if (retval) if (retval)
{ {
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"pg_krb5_sendauth: krb5_sname_to_principal: %s\n", "pg_krb5_sendauth: krb5_sname_to_principal: %s\n",
error_message(retval)); error_message(retval));
pg_krb5_destroy(&info); pg_krb5_destroy(&info);
@ -253,7 +253,7 @@ pg_krb5_sendauth(char *PQerrormsg, int sock, const char *hostname, const char *s
{ {
char sebuf[256]; char sebuf[256];
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("could not set socket to blocking mode: %s\n"), pqStrerror(errno, sebuf, sizeof(sebuf))); libpq_gettext("could not set socket to blocking mode: %s\n"), pqStrerror(errno, sebuf, sizeof(sebuf)));
krb5_free_principal(info.pg_krb5_context, server); krb5_free_principal(info.pg_krb5_context, server);
pg_krb5_destroy(&info); pg_krb5_destroy(&info);
@ -271,11 +271,11 @@ pg_krb5_sendauth(char *PQerrormsg, int sock, const char *hostname, const char *s
if (retval == KRB5_SENDAUTH_REJECTED && err_ret) if (retval == KRB5_SENDAUTH_REJECTED && err_ret)
{ {
#if defined(HAVE_KRB5_ERROR_TEXT_DATA) #if defined(HAVE_KRB5_ERROR_TEXT_DATA)
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("Kerberos 5 authentication rejected: %*s\n"), libpq_gettext("Kerberos 5 authentication rejected: %*s\n"),
(int) err_ret->text.length, err_ret->text.data); (int) err_ret->text.length, err_ret->text.data);
#elif defined(HAVE_KRB5_ERROR_E_DATA) #elif defined(HAVE_KRB5_ERROR_E_DATA)
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("Kerberos 5 authentication rejected: %*s\n"), libpq_gettext("Kerberos 5 authentication rejected: %*s\n"),
(int) err_ret->e_data->length, (int) err_ret->e_data->length,
(const char *) err_ret->e_data->data); (const char *) err_ret->e_data->data);
@ -285,7 +285,7 @@ pg_krb5_sendauth(char *PQerrormsg, int sock, const char *hostname, const char *s
} }
else else
{ {
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"krb5_sendauth: %s\n", error_message(retval)); "krb5_sendauth: %s\n", error_message(retval));
} }
@ -301,7 +301,7 @@ pg_krb5_sendauth(char *PQerrormsg, int sock, const char *hostname, const char *s
{ {
char sebuf[256]; char sebuf[256];
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("could not restore non-blocking mode on socket: %s\n"), libpq_gettext("could not restore non-blocking mode on socket: %s\n"),
pqStrerror(errno, sebuf, sizeof(sebuf))); pqStrerror(errno, sebuf, sizeof(sebuf)));
ret = STATUS_ERROR; ret = STATUS_ERROR;
@ -363,14 +363,14 @@ pg_local_sendauth(char *PQerrormsg, PGconn *conn)
{ {
char sebuf[256]; char sebuf[256];
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"pg_local_sendauth: sendmsg: %s\n", "pg_local_sendauth: sendmsg: %s\n",
pqStrerror(errno, sebuf, sizeof(sebuf))); pqStrerror(errno, sebuf, sizeof(sebuf)));
return STATUS_ERROR; return STATUS_ERROR;
} }
return STATUS_OK; return STATUS_OK;
#else #else
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("SCM_CRED authentication method not supported\n")); libpq_gettext("SCM_CRED authentication method not supported\n"));
return STATUS_ERROR; return STATUS_ERROR;
#endif #endif
@ -456,7 +456,7 @@ pg_fe_sendauth(AuthRequest areq, PGconn *conn, const char *hostname,
break; break;
case AUTH_REQ_KRB4: case AUTH_REQ_KRB4:
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("Kerberos 4 authentication not supported\n")); libpq_gettext("Kerberos 4 authentication not supported\n"));
return STATUS_ERROR; return STATUS_ERROR;
@ -473,7 +473,7 @@ pg_fe_sendauth(AuthRequest areq, PGconn *conn, const char *hostname,
pgunlock_thread(); pgunlock_thread();
break; break;
#else #else
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("Kerberos 5 authentication not supported\n")); libpq_gettext("Kerberos 5 authentication not supported\n"));
return STATUS_ERROR; return STATUS_ERROR;
#endif #endif
@ -483,13 +483,13 @@ pg_fe_sendauth(AuthRequest areq, PGconn *conn, const char *hostname,
case AUTH_REQ_PASSWORD: case AUTH_REQ_PASSWORD:
if (password == NULL || *password == '\0') if (password == NULL || *password == '\0')
{ {
(void) snprintf(PQerrormsg, PQERRORMSG_LENGTH, (void) snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
PQnoPasswordSupplied); PQnoPasswordSupplied);
return STATUS_ERROR; return STATUS_ERROR;
} }
if (pg_password_sendauth(conn, password, areq) != STATUS_OK) if (pg_password_sendauth(conn, password, areq) != STATUS_OK)
{ {
(void) snprintf(PQerrormsg, PQERRORMSG_LENGTH, (void) snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
"fe_sendauth: error sending password authentication\n"); "fe_sendauth: error sending password authentication\n");
return STATUS_ERROR; return STATUS_ERROR;
} }
@ -501,7 +501,7 @@ pg_fe_sendauth(AuthRequest areq, PGconn *conn, const char *hostname,
break; break;
default: default:
snprintf(PQerrormsg, PQERRORMSG_LENGTH, snprintf(PQerrormsg, INITIAL_EXPBUFFER_SIZE,
libpq_gettext("authentication method %u not supported\n"), areq); libpq_gettext("authentication method %u not supported\n"), areq);
return STATUS_ERROR; return STATUS_ERROR;
} }

4
src/interfaces/libpq/fe-connect.c
View File

@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.323.2.2 2006/05/21 20:19:44 tgl Exp $ * $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.323.2.3 2007/07/23 18:13:02 mha Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -2495,7 +2495,7 @@ conninfo_parse(const char *conninfo, PQExpBuffer errorMessage)
char *cp2; char *cp2;
PQconninfoOption *options; PQconninfoOption *options;
PQconninfoOption *option; PQconninfoOption *option;
char errortmp[PQERRORMSG_LENGTH]; char errortmp[INITIAL_EXPBUFFER_SIZE];
/* Make a working copy of PQconninfoOptions */ /* Make a working copy of PQconninfoOptions */
options = malloc(sizeof(PQconninfoOptions)); options = malloc(sizeof(PQconninfoOptions));

3
src/interfaces/libpq/libpq-int.h
View File

@ -12,7 +12,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $PostgreSQL: pgsql/src/interfaces/libpq/libpq-int.h,v 1.108.2.2 2006/05/21 20:19:44 tgl Exp $ * $PostgreSQL: pgsql/src/interfaces/libpq/libpq-int.h,v 1.108.2.3 2007/07/23 18:13:02 mha Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -57,7 +57,6 @@ typedef int ssize_t; /* ssize_t doesn't exist in VC (at least not
/* /*
* POSTGRES backend dependent Constants. * POSTGRES backend dependent Constants.
*/ */
#define PQERRORMSG_LENGTH 1024
#define CMDSTATUS_LEN 40 #define CMDSTATUS_LEN 40
/* /*