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samba-mirror/source4/param/generic.c
Jelmer Vernooij 30047a9543 r25460: use common structure in param/generic.c
(This used to be commit 01ce5448f4)
2007-10-10 15:07:40 -05:00

265 lines
6.2 KiB
C

/*
* Unix SMB/CIFS implementation.
* Copyright (C) Jelmer Vernooij 2005
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "lib/util/dlinklist.h"
#include "param/param.h"
#include "system/filesys.h"
struct param_section *param_get_section(struct param_context *ctx, const char *name)
{
struct param_section *sect;
if (name == NULL)
name = GLOBAL_NAME;
for (sect = ctx->sections; sect; sect = sect->next) {
if (!strcasecmp_m(sect->name, name))
return sect;
}
return NULL;
}
struct param_opt *param_section_get(struct param_section *section,
const char *name)
{
struct param_opt *p;
for (p = section->parameters; p; p = p->next) {
if (strcasecmp_m(p->key, name) == 0)
return p;
}
return NULL;
}
struct param_opt *param_get (struct param_context *ctx, const char *section_name, const char *name)
{
struct param_section *section = param_get_section(ctx, section_name);
if (section == NULL)
return NULL;
return param_section_get(section, name);
}
/* Look up parameter. If it is not found, add it */
static struct param_opt *param_get_add(struct param_context *ctx, const char *section_name, const char *name)
{
struct param_section *section;
struct param_opt *p;
section = param_get_section(ctx, section_name);
if (section == NULL) {
section = talloc_zero(ctx, struct param_section);
if (section == NULL)
return NULL;
section->name = talloc_strdup(section, section_name);
DLIST_ADD(ctx->sections, section);
}
p = param_section_get(section, name);
if (p == NULL) {
p = talloc_zero(section, struct param_opt);
if (p == NULL)
return NULL;
p->key = talloc_strdup(p, name);
DLIST_ADD(section->parameters, p);
}
return p;
}
const char *param_get_string(struct param_context *ctx, const char *section, const char *param)
{
struct param_opt *p = param_get(ctx, section, param);
if (p == NULL)
return NULL;
return p->value;
}
int param_set_string(struct param_context *ctx, const char *section, const char *param, const char *value)
{
struct param_opt *p = param_get_add(ctx, section, param);
if (p == NULL)
return -1;
p->value = talloc_strdup(p, value);
return 0;
}
const char **param_get_string_list(struct param_context *ctx, const char *section, const char *param,
const char *separator)
{
struct param_opt *p = param_get(ctx, section, param);
if (p == NULL)
return NULL;
if (separator == NULL)
separator = LIST_SEP;
return str_list_make(ctx, p->value, separator);
}
int param_set_string_list(struct param_context *ctx, const char *section, const char *param, const char **list)
{
struct param_opt *p = param_get_add(ctx, section, param);
p->value = str_list_join(p, list, ' ');
return 0;
}
int param_get_int(struct param_context *ctx, const char *section, const char *param, int default_v)
{
const char *value = param_get_string(ctx, section, param);
if (value)
return strtol(value, NULL, 0);
return default_v;
}
void param_set_int(struct param_context *ctx, const char *section, const char *param, int value)
{
struct param_opt *p = param_get_add(ctx, section, param);
if (!p)
return;
p->value = talloc_asprintf(p, "%d", value);
}
unsigned long param_get_ulong(struct param_context *ctx, const char *section, const char *param, unsigned long default_v)
{
const char *value = param_get_string(ctx, section, param);
if (value)
return strtoul(value, NULL, 0);
return default_v;
}
void param_set_ulong(struct param_context *ctx, const char *section, const char *name, unsigned long value)
{
struct param_opt *p = param_get_add(ctx, section, name);
if (!p)
return;
p->value = talloc_asprintf(p, "%lu", value);
}
static bool param_sfunc (const char *name, void *_ctx)
{
struct param_context *ctx = (struct param_context *)_ctx;
struct param_section *section = param_get_section(ctx, name);
if (section == NULL) {
section = talloc_zero(ctx, struct param_section);
if (section == NULL)
return false;
section->name = talloc_strdup(section, name);
DLIST_ADD(ctx->sections, section);
}
/* Make sure this section is on top of the list for param_pfunc */
DLIST_PROMOTE(ctx->sections, section);
return true;
}
static bool param_pfunc (const char *name, const char *value, void *_ctx)
{
struct param_context *ctx = (struct param_context *)_ctx;
struct param_opt *p = param_section_get(ctx->sections, name);
if (!p) {
p = talloc_zero(ctx->sections, struct param_opt);
if (p == NULL)
return False;
p->key = talloc_strdup(p, name);
p->value = talloc_strdup(p, value);
DLIST_ADD(ctx->sections->parameters, p);
} else { /* Replace current value */
talloc_free(p->value);
p->value = talloc_strdup(p, value);
}
return True;
}
struct param_context *param_init(TALLOC_CTX *mem_ctx)
{
return talloc_zero(mem_ctx, struct param_context);
}
int param_read(struct param_context *ctx, const char *fn)
{
ctx->sections = talloc_zero(ctx, struct param_section);
if (ctx->sections == NULL)
return -1;
ctx->sections->name = talloc_strdup(ctx->sections, "global");
if (!pm_process( fn, param_sfunc, param_pfunc, ctx)) {
return -1;
}
return 0;
}
int param_write(struct param_context *ctx, const char *fn)
{
int file;
struct param_section *section;
if (fn == NULL || ctx == NULL)
return -1;
file = open(fn, O_WRONLY|O_CREAT, 0755);
if (file == -1)
return -1;
for (section = ctx->sections; section; section = section->next) {
struct param_opt *param;
fdprintf(file, "[%s]\n", section->name);
for (param = section->parameters; param; param = param->next) {
fdprintf(file, "\t%s = %s\n", param->key, param->value);
}
fdprintf(file, "\n");
}
close(file);
return 0;
}