Page MenuHomeClusterLabs Projects
Files F2822244

config.c
No OneTemporary
Actions

config.c
View Options

/*
* Copyright (C) 2011 Jiaju Zhang <jjzhang@suse.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "booth.h"
#include "config.h"
#include "ticket.h"
#include "log.h"
static int ticket_size = 0;
static int ticket_realloc(void)
{
void *p;
booth_conf = realloc(booth_conf, sizeof(struct booth_config)
+ (ticket_size + TICKET_ALLOC)
* sizeof(struct ticket_config));
if (!booth_conf) {
log_error("can't alloc more booth config");
return -ENOMEM;
}
p = booth_conf + sizeof(struct booth_config)
+ ticket_size * sizeof(struct ticket_config);
memset(p, 0, TICKET_ALLOC * sizeof(struct ticket_config));
ticket_size += TICKET_ALLOC;
return 0;
}
int read_config(const char *path)
{
char line[1024];
FILE *fp;
char *s, *key, *val, *expiry, *weight, *c;
int in_quotes, got_equals, got_quotes, i;
int lineno = 0;
int got_transport = 0;
fp = fopen(path, "r");
if (!fp) {
log_error("failed to open %s: %s", path, strerror(errno));
return -1;
}
booth_conf = malloc(sizeof(struct booth_config)
+ TICKET_ALLOC * sizeof(struct ticket_config));
if (!booth_conf) {
log_error("failed to alloc memory for booth config");
return -ENOMEM;
}
memset(booth_conf, 0, sizeof(struct booth_config)
+ TICKET_ALLOC * sizeof(struct ticket_config));
ticket_size = TICKET_ALLOC;
while (fgets(line, sizeof(line), fp)) {
lineno++;
s = line;
while (*s == ' ')
s++;
if (*s == '#' || *s == '\n')
continue;
if (*s == '-' || *s == '.' || *s =='/'
|| *s == '+' || *s == '(' || *s == ')'
|| *s == ':' || *s == ',' || *s == '@'
|| *s == '=' || *s == '"') {
log_error("invalid key name in config file "
"('%c', line %d char %ld)", *s, lineno, (long)(s - line));
goto out;
}
key = s; /* will point to the key on the left hand side */
val = NULL; /* will point to the value on the right hand side */
in_quotes = 0; /* true iff we're inside a double-quoted string */
got_equals = 0; /* true iff we're on the RHS of the = assignment */
got_quotes = 0; /* true iff the RHS is quoted */
while (*s != '\n' && *s != '\0') {
if (!(*s >='a' && *s <= 'z')
&& !(*s >= 'A' && *s <= 'Z')
&& !(*s >= '0' && *s <= '9')
&& !(*s == '_')
&& !(*s == '-')
&& !(*s == '.')
&& !(*s == '/')
&& !(*s == ' ')
&& !(*s == '+')
&& !(*s == '(')
&& !(*s == ')')
&& !(*s == ':')
&& !(*s == ';')
&& !(*s == ',')
&& !(*s == '@')
&& !(*s == '=')
&& !(*s == '"')) {
log_error("invalid character ('%c', line %d char %ld)"
" in config file", *s, lineno, (long)(s - line));
goto out;
}
if (*s == '=' && !got_equals) {
got_equals = 1;
*s = '\0';
val = s + 1;
} else if ((*s == '=' || *s == '_' || *s == '-' || *s == '.')
&& got_equals && !in_quotes) {
log_error("invalid config file format: unquoted '%c' "
"(line %d char %ld)", *s, lineno, (long)(s - line));
goto out;
} else if ((*s == '/' || *s == '+'
|| *s == '(' || *s == ')' || *s == ':'
|| *s == ',' || *s == '@') && !in_quotes) {
log_error("invalid config file format: unquoted '%c' "
"(line %d char %ld)", *s, lineno, (long)(s - line));
goto out;
} else if ((*s == ' ')
&& !in_quotes && !got_quotes) {
log_error("invalid config file format: unquoted whitespace "
"(line %d char %ld)", lineno, (long)(s - line));
goto out;
} else if (*s == '"' && !got_equals) {
log_error("invalid config file format: unexpected quotes "
"(line %d char %ld)", lineno, (long)(s - line));
goto out;
} else if (*s == '"' && !in_quotes) {
in_quotes = 1;
if (val) {
val++;
got_quotes = 1;
}
} else if (*s == '"' && in_quotes) {
in_quotes = 0;
*s = '\0';
}
s++;
}
if (!got_equals) {
log_error("invalid config file format: missing '=' (lineno %d)",
lineno);
goto out;
}
if (in_quotes) {
log_error("invalid config file format: unterminated quotes (lineno %d)",
lineno);
goto out;
}
if (!got_quotes)
*s = '\0';
if (strlen(key) > BOOTH_NAME_LEN
|| strlen(val) > BOOTH_NAME_LEN) {
log_error("key/value too long");
goto out;
}
if (!strcmp(key, "transport")) {
if (!strcmp(val, "UDP"))
booth_conf->proto = UDP;
else if (!strcmp(val, "SCTP"))
booth_conf->proto = SCTP;
else {
log_error("invalid transport protocol");
goto out;
}
got_transport = 1;
}
if (!strcmp(key, "port"))
booth_conf->port = atoi(val);
if (!strcmp(key, "site")) {
if (booth_conf->node_count == MAX_NODES) {
log_error("too many nodes");
goto out;
}
booth_conf->node[booth_conf->node_count].family =
BOOTH_PROTO_FAMILY;
booth_conf->node[booth_conf->node_count].type = SITE;
booth_conf->node[booth_conf->node_count].nodeid =
booth_conf->node_count;
strcpy(booth_conf->node[booth_conf->node_count++].addr,
val);
}
if (!strcmp(key, "arbitrator")) {
if (booth_conf->node_count == MAX_NODES) {
log_error("too many nodes");
goto out;
}
booth_conf->node[booth_conf->node_count].family =
BOOTH_PROTO_FAMILY;
booth_conf->node[booth_conf->node_count].type =
ARBITRATOR;
booth_conf->node[booth_conf->node_count].nodeid =
booth_conf->node_count;
strcpy(booth_conf->node[booth_conf->node_count++].addr,
val);
}
if (!strcmp(key, "ticket")) {
int count = booth_conf->ticket_count;
if (booth_conf->ticket_count == ticket_size) {
if (ticket_realloc() < 0)
goto out;
}
expiry = index(val, ';');
weight = rindex(val, ';');
if (!expiry) {
strcpy(booth_conf->ticket[count].name, val);
booth_conf->ticket[count].expiry = DEFAULT_TICKET_EXPIRY;
log_info("expire is not set in %s."
" Set the default value %ds.",
booth_conf->ticket[count].name,
DEFAULT_TICKET_EXPIRY);
}
else if (expiry && expiry == weight) {
*expiry++ = '\0';
while (*expiry == ' ')
expiry++;
strcpy(booth_conf->ticket[count].name, val);
booth_conf->ticket[count].expiry = atoi(expiry);
} else {
*expiry++ = '\0';
*weight++ = '\0';
while (*expiry == ' ')
expiry++;
while (*weight == ' ')
weight++;
strcpy(booth_conf->ticket[count].name, val);
booth_conf->ticket[count].expiry = atoi(expiry);
i = 0;
while ((c = index(weight, ','))) {
*c++ = '\0';
booth_conf->ticket[count].weight[i++]
= atoi(weight);
while (*c == ' ')
c++;
weight = c;
if (i == MAX_NODES) {
log_error("too many weights");
break;
}
}
}
booth_conf->ticket_count++;
}
}
if (!got_transport) {
log_error("config file was missing transport line");
goto out;
}
return 0;
out:
free(booth_conf);
return -1;
}
int check_config(int type)
{
// int i;
if (!booth_conf)
return -1;
/* for (i = 0; i < booth_conf->node_count; i++) {
if (booth_conf->node[i].local && booth_conf->node[i].type ==
type)
return 0;
}
return -1;*/
return 0;
}

File Metadata

Mime Type
text/x-c
Expires
Sat, Jan 25, 5:19 AM (9 h, 2 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
1321371
Default Alt Text
config.c (7 KB)

Event Timeline