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Commited7a17d

Browse files
committed
Remove unneeded stat calls.
1 parent75c6c2b commited7a17d

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4 files changed

+35
-52
lines changed

4 files changed

+35
-52
lines changed

‎src/backend/libpq/hba.c

Lines changed: 6 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -7,17 +7,17 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.18 1997/08/18 02:14:37 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.19 1997/08/27 03:48:31 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
1414
#include<stdio.h>
1515
#include<string.h>
1616
#include<errno.h>
1717
#include<pwd.h>
18-
#include<sys/stat.h>
18+
#include<sys/types.h>
19+
#include<fcntl.h>
1920
#include<sys/socket.h>
20-
#include<sys/types.h>/* needed by in.h on Ultrix */
2121
#include<netinet/in.h>
2222
#include<arpa/inet.h>
2323
#include<unistd.h>
@@ -299,8 +299,7 @@ find_hba_entry(const char DataDir[], const struct in_addr ip_addr,
299299
system.
300300
301301
---------------------------------------------------------------------------*/
302-
intrc;
303-
structstatstatbuf;
302+
intfd;
304303

305304
FILE*file;/* The config file we have to read */
306305

@@ -315,9 +314,9 @@ find_hba_entry(const char DataDir[], const struct in_addr ip_addr,
315314
strlen(OLD_CONF_FILE)+2)*sizeof(char));
316315
sprintf(old_conf_file,"%s/%s",DataDir,OLD_CONF_FILE);
317316

318-
rc=stat(old_conf_file,&statbuf);
319-
if (rc==0) {
317+
if ((fd=open(old_conf_file,O_RDONLY,0))!=-1) {
320318
/* Old config file exists. Tell this guy he needs to upgrade. */
319+
close(fd);
321320
sprintf(PQerrormsg,
322321
"A file exists by the name used for host-based authentication "
323322
"in prior releases of Postgres (%s). The name and format of "

‎src/backend/utils/init/findbe.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -6,16 +6,16 @@
66
*
77
*
88
* IDENTIFICATION
9-
* $Header: /cvsroot/pgsql/src/backend/utils/init/Attic/findbe.c,v 1.4 1997/08/12 20:16:12 momjian Exp $
9+
* $Header: /cvsroot/pgsql/src/backend/utils/init/Attic/findbe.c,v 1.5 1997/08/27 03:48:38 momjian Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
1313
#include<stdio.h>
1414
#include<grp.h>
1515
#include<pwd.h>
1616
#include<string.h>
17-
#include<sys/stat.h>
1817
#include<sys/types.h>
18+
#include<sys/stat.h>
1919
#include<unistd.h>
2020

2121
#include"postgres.h"

‎src/backend/utils/init/postinit.c

Lines changed: 7 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.11 1997/08/19 21:35:50 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.12 1997/08/27 03:48:39 momjian Exp $
1111
*
1212
* NOTES
1313
* InitPostgres() is the function called from PostgresMain
@@ -30,7 +30,6 @@
3030
#include<stdio.h>
3131
#include<string.h>
3232
#include<sys/file.h>
33-
#include<sys/stat.h>
3433
#include<sys/types.h>
3534
#include<math.h>
3635
#include<unistd.h>
@@ -79,15 +78,6 @@ static void InitUserid(void);
7978

8079
staticIPCKeyPostgresIpcKey;
8180

82-
83-
#ifndefprivate
84-
#ifndefEBUG
85-
#defineprivate static
86-
#else/* !defined(EBUG) */
87-
#defineprivate
88-
#endif/* !defined(EBUG) */
89-
#endif/* !defined(private) */
90-
9181
/* ----------------------------------------------------------------
9282
* InitPostgres support
9383
* ----------------------------------------------------------------
@@ -141,7 +131,7 @@ InitMyDatabaseId()
141131
sprintf(dbfname,"%s%cpg_database",DataDir,SEP_CHAR);
142132
fileflags=O_RDONLY;
143133

144-
if ((dbfd=open(dbfname,O_RDONLY,0666))<0)
134+
if ((dbfd=open(dbfname,O_RDONLY,0))<0)
145135
elog(FATAL,"Cannot open %s",dbfname);
146136

147137
pfree(dbfname);
@@ -261,24 +251,25 @@ static void
261251
DoChdirAndInitDatabaseNameAndPath(char*name) {
262252
char*reason;
263253
/* Failure reason returned by some function. NULL if no failure */
264-
structstatstatbuf;
254+
intfd;
265255
charerrormsg[1000];
266256

267-
if (stat(DataDir,&statbuf)<0)
257+
if ((fd=open(DataDir,O_RDONLY,0))==-1)
268258
sprintf(errormsg,"Database system does not exist. "
269259
"PGDATA directory '%s' not found. Normally, you "
270260
"create a database system by running initdb.",
271261
DataDir);
272262
else {
273263
charmyPath[MAXPGPATH];/* DatabasePath points here! */
274264

265+
close(fd);
275266
if (strlen(DataDir)+strlen(name)+10>sizeof(myPath))
276267
sprintf(errormsg,"Internal error in postinit.c: database "
277268
"pathname exceeds maximum allowable length.");
278269
else {
279270
sprintf(myPath,"%s/base/%s",DataDir,name);
280271

281-
if (stat(myPath,&statbuf)<0)
272+
if ((fd=open(myPath,O_RDONLY,0))==-1)
282273
sprintf(errormsg,
283274
"Database '%s' does not exist. "
284275
"(We know this because the directory '%s' "
@@ -288,6 +279,7 @@ DoChdirAndInitDatabaseNameAndPath(char *name) {
288279
"of '%s/base/'.",
289280
name,myPath,DataDir);
290281
else {
282+
close(fd);
291283
ValidatePgVersion(DataDir,&reason);
292284
if (reason!=NULL)
293285
sprintf(errormsg,

‎src/utils/version.c

Lines changed: 20 additions & 28 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/utils/Attic/version.c,v 1.5 1997/07/28 00:57:08 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/utils/Attic/version.c,v 1.6 1997/08/27 03:48:50 momjian Exp $
1111
*
1212
* NOTES
1313
*XXX eventually, should be able to handle version identifiers
@@ -63,42 +63,34 @@ ValidatePgVersion(const char *path, char **reason_p) {
6363
intfd;
6464
charversion[4];
6565
charfull_path[MAXPGPATH+1];
66-
structstatstatbuf;
6766

6867
PathSetVersionFilePath(path,full_path);
6968

70-
if (stat(full_path,&statbuf)<0) {
69+
if ((fd=open(full_path,O_RDONLY,0))==-1) {
7170
*reason_p=malloc(200);
72-
sprintf(*reason_p,"File '%s' does not exist.",full_path);
71+
sprintf(*reason_p,"File '%s' does not exist or no read permission.",full_path);
7372
}else {
74-
fd=open(full_path,O_RDONLY,0);
75-
if (fd<0) {
73+
if (read(fd,version,4)<4||
74+
!isascii(version[0])|| !isdigit(version[0])||
75+
version[1]!='.'||
76+
!isascii(version[2])|| !isdigit(version[2])||
77+
version[3]!='\n') {
78+
7679
*reason_p=malloc(200);
77-
sprintf(*reason_p,"Unable to open file'%s'. Errno = %s (%d).",
78-
full_path,strerror(errno),errno);
80+
sprintf(*reason_p,"File'%s' does not have a valid format "
81+
"for a PG_VERSION file.",full_path);
7982
}else {
80-
if (read(fd,version,4)<4||
81-
!isascii(version[0])|| !isdigit(version[0])||
82-
version[1]!='.'||
83-
!isascii(version[2])|| !isdigit(version[2])||
84-
version[3]!='\n') {
85-
83+
if (version[2]!='0'+PG_VERSION||
84+
version[0]!='0'+PG_RELEASE) {
8685
*reason_p=malloc(200);
87-
sprintf(*reason_p,"File '%s' does not have a valid format "
88-
"for a PG_VERSION file.",full_path);
89-
}else {
90-
if (version[2]!='0'+PG_VERSION||
91-
version[0]!='0'+PG_RELEASE) {
92-
*reason_p=malloc(200);
93-
sprintf(*reason_p,
94-
"Version number in file '%s' should be %d.%d, "
95-
"not %c.%c.",
96-
full_path,
97-
PG_RELEASE,PG_VERSION,version[0],version[2]);
98-
}else*reason_p=NULL;
99-
}
100-
close(fd);
86+
sprintf(*reason_p,
87+
"Version number in file '%s' should be %d.%d, "
88+
"not %c.%c.",
89+
full_path,
90+
PG_RELEASE,PG_VERSION,version[0],version[2]);
91+
}else*reason_p=NULL;
10192
}
93+
close(fd);
10294
}
10395
}
10496

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