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Add missing logic to handle fixing permissions on an already-existing

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data directory.  Also fix handling of error conditions associated with
data directory checking step (can't use a boolean to distinguish four
possible result states...)
This commit is contained in:
Tom Lane
2003-11-14 17:19:35 +00:00
parent c38ff52693
commit 0104fc11b9
1 changed files with 61 additions and 34 deletions
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85
src/bin/initdb/initdb.c
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@@ -42,7 +42,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/bin/initdb/initdb.c,v 1.7 2003/11/13 23:46:31 tgl Exp $
* $Header: /cvsroot/pgsql/src/bin/initdb/initdb.c,v 1.8 2003/11/14 17:19:35 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -163,7 +163,7 @@ static char *get_id(void);
static char *get_encoding_id(char *);
static char *get_short_version(void);
static int mkdir_p(char *, mode_t);
static bool check_data_dir(void);
static int check_data_dir(void);
static bool mkdatadir(char *);
static bool chklocale(const char *);
static void setlocales(void);
@@ -274,8 +274,8 @@ rmtree(char *path, bool rmtopdir)
char buf[MAXPGPATH + 64];
#ifndef WIN32
/* doesn't handle .* files */
snprintf(buf, sizeof(buf), "rm -rf '%s%s'", path,
/* doesn't handle .* files, but we don't make any... */
snprintf(buf, sizeof(buf), "rm -rf \"%s\"%s", path,
rmtopdir ? "" : "/*");
#else
snprintf(buf, sizeof(buf), "%s /s /q \"%s\"",
@@ -707,18 +707,23 @@ get_short_version(void)
/*
* make sure the data directory either doesn't exist or is empty
*
* Returns 0 if nonexistent, 1 if exists and empty, 2 if not empty,
* or -1 if trouble accessing directory
*/
static bool
static int
check_data_dir(void)
{
DIR *chkdir;
struct dirent *file;
bool empty = true;
int result = 1;
errno = 0;
chkdir = opendir(pg_data);
if (!chkdir)
return (errno == ENOENT);
return (errno == ENOENT) ? 0 : -1;
while ((file = readdir(chkdir)) != NULL)
{
@@ -729,14 +734,17 @@ check_data_dir(void)
}
else
{
empty = false;
result = 2; /* not empty */
break;
}
}
closedir(chkdir);
return empty;
if (errno != 0)
result = -1; /* some kind of I/O error? */
return result;
}
/*
@@ -2315,27 +2323,12 @@ main(int argc, char *argv[])
pqsignal(SIGTERM, trapsig);
#endif
/* clear this we'll use it in a few lines */
errno = 0;
if (!check_data_dir())
switch (check_data_dir())
{
fprintf(stderr,
"%s: directory \"%s\" exists but is not empty\n"
"If you want to create a new database system, either remove or empty\n"
"the directory \"%s\" or run %s\n"
"with an argument other than \"%s\".\n",
progname, pg_data, pg_data, progname, pg_data);
exit(1);
}
/*
* check_data_dir() called opendir - the errno should still be hanging
* around
*/
if (errno == ENOENT)
{
printf("creating directory %s ... ", pg_data);
case 0:
/* PGDATA not there, must create it */
printf("creating directory %s ... ",
pg_data);
fflush(stdout);
if (!mkdatadir(NULL))
@@ -2344,6 +2337,40 @@ main(int argc, char *argv[])
check_ok();
made_new_pgdata = true;
break;
case 1:
/* Present but empty, fix permissions and use it */
printf("fixing permissions on existing directory %s ... ",
pg_data);
fflush(stdout);
if (chmod(pg_data, 0700) != 0)
{
perror(pg_data);
/* don't exit_nicely(), it'll try to remove pg_data contents */
exit(1);
}
else
check_ok();
break;
case 2:
/* Present and not empty */
fprintf(stderr,
"%s: directory \"%s\" exists but is not empty\n"
"If you want to create a new database system, either remove or empty\n"
"the directory \"%s\" or run %s\n"
"with an argument other than \"%s\".\n",
progname, pg_data, pg_data, progname, pg_data);
/* don't exit_nicely(), it'll try to remove pg_data contents */
exit(1);
default:
/* Trouble accessing directory */
perror(pg_data);
/* don't exit_nicely(), it'll try to remove pg_data contents */
exit(1);
}
/* Create required subdirectories */