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/*
* util.c
*
* utility functions
*
* Copyright (c) 2010-2021, PostgreSQL Global Development Group
* src/bin/pg_upgrade/util.c
*/
#include "postgres_fe.h"
#include <signal.h>
#include "common/username.h"
#include "pg_upgrade.h"
LogOpts log_opts;
static void pg_log_v(eLogType type, const char *fmt, va_list ap) pg_attribute_printf(2, 0);
/*
* report_status()
*
* Displays the result of an operation (ok, failed, error message,...)
*/
void
report_status(eLogType type, const char *fmt,...)
{
va_list args;
char message[MAX_STRING];
va_start(args, fmt);
vsnprintf(message, sizeof(message), fmt, args);
va_end(args);
pg_log(type, "%s\n", message);
}
/* force blank output for progress display */
void
end_progress_output(void)
{
/*
* In case nothing printed; pass a space so gcc doesn't complain about
* empty format string.
*/
prep_status(" ");
}
/*
* prep_status
*
* Displays a message that describes an operation we are about to begin.
* We pad the message out to MESSAGE_WIDTH characters so that all of the "ok" and
* "failed" indicators line up nicely.
*
* A typical sequence would look like this:
* prep_status("about to flarb the next %d files", fileCount );
*
* if(( message = flarbFiles(fileCount)) == NULL)
* report_status(PG_REPORT, "ok" );
* else
* pg_log(PG_FATAL, "failed - %s\n", message );
*/
void
prep_status(const char *fmt,...)
{
va_list args;
char message[MAX_STRING];
va_start(args, fmt);
vsnprintf(message, sizeof(message), fmt, args);
va_end(args);
if (strlen(message) > 0 && message[strlen(message) - 1] == '\n')
pg_log(PG_REPORT, "%s", message);
else
/* trim strings that don't end in a newline */
pg_log(PG_REPORT, "%-*s", MESSAGE_WIDTH, message);
}
static void
pg_log_v(eLogType type, const char *fmt, va_list ap)
{
char message[QUERY_ALLOC];
vsnprintf(message, sizeof(message), _(fmt), ap);
/* PG_VERBOSE and PG_STATUS are only output in verbose mode */
/* fopen() on log_opts.internal might have failed, so check it */
if (((type != PG_VERBOSE && type != PG_STATUS) || log_opts.verbose) &&
log_opts.internal != NULL)
{
if (type == PG_STATUS)
/* status messages need two leading spaces and a newline */
fprintf(log_opts.internal, " %s\n", message);
else
fprintf(log_opts.internal, "%s", message);
fflush(log_opts.internal);
}
switch (type)
{
case PG_VERBOSE:
if (log_opts.verbose)
printf("%s", message);
break;
case PG_STATUS:
/* for output to a display, do leading truncation and append \r */
if (isatty(fileno(stdout)))
/* -2 because we use a 2-space indent */
printf(" %s%-*.*s\r",
/* prefix with "..." if we do leading truncation */
strlen(message) <= MESSAGE_WIDTH - 2 ? "" : "...",
MESSAGE_WIDTH - 2, MESSAGE_WIDTH - 2,
/* optional leading truncation */
strlen(message) <= MESSAGE_WIDTH - 2 ? message :
message + strlen(message) - MESSAGE_WIDTH + 3 + 2);
else
printf(" %s\n", message);
break;
case PG_REPORT:
case PG_WARNING:
printf("%s", message);
break;
case PG_FATAL:
printf("\n%s", message);
printf(_("Failure, exiting\n"));
exit(1);
break;
default:
break;
}
fflush(stdout);
}
void
pg_log(eLogType type, const char *fmt,...)
{
va_list args;
va_start(args, fmt);
pg_log_v(type, fmt, args);
va_end(args);
}
void
pg_fatal(const char *fmt,...)
{
va_list args;
va_start(args, fmt);
pg_log_v(PG_FATAL, fmt, args);
va_end(args);
printf(_("Failure, exiting\n"));
exit(1);
}
void
check_ok(void)
{
/* all seems well */
report_status(PG_REPORT, "ok");
fflush(stdout);
}
/*
* quote_identifier()
* Properly double-quote a SQL identifier.
*
* The result should be pg_free'd, but most callers don't bother because
* memory leakage is not a big deal in this program.
*/
char *
quote_identifier(const char *s)
{
char *result = pg_malloc(strlen(s) * 2 + 3);
char *r = result;
*r++ = '"';
while (*s)
{
if (*s == '"')
*r++ = *s;
*r++ = *s;
s++;
}
*r++ = '"';
*r++ = '\0';
return result;
}
/*
* get_user_info()
*/
int
get_user_info(char **user_name_p)
{
int user_id;
const char *user_name;
char *errstr;
#ifndef WIN32
user_id = geteuid();
#else
user_id = 1;
#endif
user_name = get_user_name(&errstr);
if (!user_name)
pg_fatal("%s\n", errstr);
/* make a copy */
*user_name_p = pg_strdup(user_name);
return user_id;
}
/*
* str2uint()
*
* convert string to oid
*/
unsigned int
str2uint(const char *str)
{
return strtoul(str, NULL, 10);
}
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