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Commit4c8d2f7

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committed
Clean up callers of AllocateFile and BasicOpenFile to ensure that
a reasonable error message (including the kernel errno message)is reported on any file open failure.
1 parent5ba9d8c commit4c8d2f7

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4 files changed

+34
-38
lines changed

4 files changed

+34
-38
lines changed

‎src/backend/commands/user.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
77
* Portions Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.66 2000/08/03 16:34:01 tgl Exp $
9+
* $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.67 2000/08/27 21:50:17 tgl Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -72,7 +72,7 @@ write_password_file(Relation rel)
7272
fp=AllocateFile(tempname,"w");
7373
umask(oumask);
7474
if (fp==NULL)
75-
elog(ERROR,"%s: %m",tempname);
75+
elog(ERROR,"write_password_file: unable to write%s: %m",tempname);
7676

7777
/* read table */
7878
scan=heap_beginscan(rel, false,SnapshotSelf,0,NULL);
@@ -156,7 +156,7 @@ write_password_file(Relation rel)
156156
filename=crypt_getpwdreloadfilename();
157157
flagfd=BasicOpenFile(filename,O_WRONLY |O_CREAT,0600);
158158
if (flagfd<0)
159-
elog(NOTICE,"%s: %m",filename);
159+
elog(NOTICE,"write_password_file: unable to write%s: %m",filename);
160160
else
161161
close(flagfd);
162162
pfree((void*)filename);

‎src/backend/libpq/crypt.c‎

Lines changed: 17 additions & 20 deletions
Original file line numberDiff line numberDiff line change
@@ -9,11 +9,12 @@
99
* Dec 17, 1997 - Todd A. Brandys
1010
*Orignal Version Completed.
1111
*
12-
* $Id: crypt.c,v 1.28 2000/07/12 22:58:59 petere Exp $
12+
* $Id: crypt.c,v 1.29 2000/08/27 21:50:18 tgl Exp $
1313
*
1414
*-------------------------------------------------------------------------
1515
*/
1616

17+
#include<errno.h>
1718
#include<unistd.h>
1819

1920
#include"postgres.h"
@@ -32,11 +33,10 @@ intpwd_cache_count = 0;
3233
/*-------------------------------------------------------------------------*/
3334

3435
char*
35-
crypt_getpwdfilename()
36+
crypt_getpwdfilename(void)
3637
{
37-
38-
staticchar*pfnam=NULL;
3938
intbufsize;
39+
char*pfnam;
4040

4141
bufsize=strlen(DataDir)+8+strlen(CRYPT_PWD_FILE)+1;
4242
pfnam= (char*)palloc(bufsize);
@@ -48,12 +48,11 @@ crypt_getpwdfilename()
4848
/*-------------------------------------------------------------------------*/
4949

5050
char*
51-
crypt_getpwdreloadfilename()
51+
crypt_getpwdreloadfilename(void)
5252
{
53-
54-
staticchar*rpfnam=NULL;
5553
char*pwdfilename;
5654
intbufsize;
55+
char*rpfnam;
5756

5857
pwdfilename=crypt_getpwdfilename();
5958
bufsize=strlen(pwdfilename)+strlen(CRYPT_PWD_RELOAD_SUFX)+1;
@@ -65,23 +64,25 @@ crypt_getpwdreloadfilename()
6564

6665
/*-------------------------------------------------------------------------*/
6766

68-
static
69-
FILE*
70-
crypt_openpwdfile()
67+
staticFILE*
68+
crypt_openpwdfile(void)
7169
{
7270
char*filename;
7371
FILE*pwdfile;
7472

7573
filename=crypt_getpwdfilename();
7674
pwdfile=AllocateFile(filename,PG_BINARY_R);
7775

76+
if (pwdfile==NULL)
77+
fprintf(stderr,"Couldn't read %s: %s\n",
78+
filename,strerror(errno));
79+
7880
returnpwdfile;
7981
}
8082

8183
/*-------------------------------------------------------------------------*/
8284

83-
static
84-
int
85+
staticint
8586
compar_user(constvoid*user_a,constvoid*user_b)
8687
{
8788

@@ -115,9 +116,8 @@ compar_user(const void *user_a, const void *user_b)
115116

116117
/*-------------------------------------------------------------------------*/
117118

118-
static
119-
void
120-
crypt_loadpwdfile()
119+
staticvoid
120+
crypt_loadpwdfile(void)
121121
{
122122

123123
char*filename;
@@ -176,8 +176,7 @@ crypt_loadpwdfile()
176176

177177
/*-------------------------------------------------------------------------*/
178178

179-
static
180-
void
179+
staticvoid
181180
crypt_parsepwdentry(char*buffer,char**pwd,char**valdate)
182181
{
183182

@@ -212,11 +211,9 @@ crypt_parsepwdentry(char *buffer, char **pwd, char **valdate)
212211

213212
/*-------------------------------------------------------------------------*/
214213

215-
static
216-
int
214+
staticint
217215
crypt_getloginfo(constchar*user,char**passwd,char**valuntil)
218216
{
219-
220217
char*pwd,
221218
*valdate;
222219
void*fakeout;

‎src/backend/libpq/hba.c‎

Lines changed: 10 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@
55
* wherein you authenticate a user by seeing what IP address the system
66
* says he comes from and possibly using ident).
77
*
8-
*$Id: hba.c,v 1.53 2000/07/08 03:04:39 tgl Exp $
8+
*$Id: hba.c,v 1.54 2000/08/27 21:50:18 tgl Exp $
99
*
1010
*-------------------------------------------------------------------------
1111
*/
@@ -427,10 +427,8 @@ find_hba_entry(hbaPort *port, bool *hba_ok_p)
427427
/* The open of the config file failed.*/
428428

429429
snprintf(PQerrormsg,PQERRORMSG_LENGTH,
430-
"find_hba_entry: Host-based authentication config file "
431-
"does not exist or permissions are not setup correctly! "
432-
"Unable to open file \"%s\".\n",
433-
conf_file);
430+
"find_hba_entry: Unable to open authentication config file \"%s\": %s\n",
431+
conf_file,strerror(errno));
434432
fputs(PQerrormsg,stderr);
435433
pqdebug("%s",PQerrormsg);
436434
}
@@ -812,16 +810,13 @@ verify_against_usermap(const char *pguser,
812810
{
813811
/* The open of the map file failed. */
814812

815-
*checks_out_p= false;
816-
817813
snprintf(PQerrormsg,PQERRORMSG_LENGTH,
818-
"verify_against_usermap: usermap file for Ident-based "
819-
"authentication "
820-
"does not exist or permissions are not setup correctly! "
821-
"Unable to open file \"%s\".\n",
822-
map_file);
814+
"verify_against_usermap: Unable to open usermap file \"%s\": %s\n",
815+
map_file,strerror(errno));
823816
fputs(PQerrormsg,stderr);
824817
pqdebug("%s",PQerrormsg);
818+
819+
*checks_out_p= false;
825820
}
826821
else
827822
{
@@ -981,7 +976,10 @@ GetCharSetByHost(char *TableName, int host, const char *DataDir)
981976
snprintf(map_file,bufsize,"%s/%s",DataDir,CHARSET_FILE);
982977
file=AllocateFile(map_file,PG_BINARY_R);
983978
if (file==NULL)
979+
{
980+
/* XXX should we log a complaint? */
984981
return;
982+
}
985983
while (!eof)
986984
{
987985
c=getc(file);

‎src/backend/libpq/password.c‎

Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -2,10 +2,11 @@
22
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
33
* Portions Copyright (c) 1994, Regents of the University of California
44
*
5-
* $Id: password.c,v 1.31 2000/07/08 03:04:40 tgl Exp $
5+
* $Id: password.c,v 1.32 2000/08/27 21:50:18 tgl Exp $
66
*
77
*/
88

9+
#include<errno.h>
910
#include<unistd.h>
1011

1112
#include"postgres.h"
@@ -36,8 +37,8 @@ verify_password(const Port *port, const char *user, const char *password)
3637
if (!pw_file)
3738
{
3839
snprintf(PQerrormsg,PQERRORMSG_LENGTH,
39-
"verify_password:couldn'topen password file'%s'\n",
40-
pw_file_fullname);
40+
"verify_password:Unable toopen password file\"%s\": %s\n",
41+
pw_file_fullname,strerror(errno));
4142
fputs(PQerrormsg,stderr);
4243
pqdebug("%s",PQerrormsg);
4344

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