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-rw-r--r--source4/param/generic.c231
1 files changed, 231 insertions, 0 deletions
diff --git a/source4/param/generic.c b/source4/param/generic.c
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+++ b/source4/param/generic.c
@@ -0,0 +1,231 @@
+/*
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+#include "dlinklist.h"
+#include "param/generic.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 *param_section_get (struct param_section *section, const char *name)
+{
+ struct param *p;
+
+ for (p = section->parameters; p; p = p->next) {
+ if (strcasecmp(p->name, name) == 0)
+ return p;
+ }
+
+ return NULL;
+}
+
+struct param *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 *param_get_add(struct param_context *ctx, const char *section_name, const char *name)
+{
+ struct param_section *section;
+ struct param *p;
+
+ section = param_get_section(ctx, section_name);
+
+ if (section == NULL) {
+ section = talloc_zero(ctx, struct param_section);
+ 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);
+ p->name = 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 *p = param_get(ctx, section, param);
+
+ if (p == NULL)
+ return NULL;
+
+ return p->value;
+}
+
+void param_set_string(struct param_context *ctx, const char *section, const char *param, const char *value)
+{
+ struct param *p = param_get_add(ctx, section, param);
+
+ p->value = talloc_strdup(p, value);
+}
+
+const char **param_get_string_list(struct param_context *ctx, const char *section, const char *param,
+ const char *separator)
+{
+ struct param *p = param_get(ctx, section, param);
+
+ if (p == NULL)
+ return NULL;
+
+ if (p->list_value == NULL) {
+ p->list_value = str_list_make(ctx, p->value, separator);
+ }
+
+ return p->list_value;
+}
+
+void param_set_string_list(struct param_context *ctx, const char *section, const char *param, const char **list)
+{
+ struct param *p = param_get_add(ctx, section, param);
+
+ p->value = str_list_join(p, list, ' ');
+ p->list_value = str_list_copy(p, list);
+}
+
+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 *p = param_get_add(ctx, section, param);
+
+ 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 *p = param_get_add(ctx, section, name);
+
+ p->value = talloc_asprintf(p, "%lu", value);
+}
+
+static BOOL param_sfunc (const char *name, void *_ctx)
+{
+ struct param_context *ctx = _ctx;
+ struct param_section *section = param_get_section(ctx, name);
+
+ if (section == NULL) {
+ section = talloc_zero(ctx, struct param_section);
+ section->name = talloc_strdup(section, name);
+
+ DLIST_ADD(ctx->sections, section);
+ }
+
+ DLIST_PROMOTE(ctx->sections, section);
+
+ return True;
+}
+
+
+
+static BOOL param_pfunc (const char *name, const char *value, void *_ctx)
+{
+ struct param_context *ctx = _ctx;
+ struct param *p = param_section_get(ctx->sections, name);
+
+ if (!p) {
+ p = talloc_zero(ctx->sections, struct param);
+ p->name = 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_read(TALLOC_CTX *mem_ctx, const char *fn)
+{
+ struct param_context *ctx = talloc_zero(mem_ctx, struct param_context);
+
+ ctx->sections = talloc_zero(ctx, struct param_section);
+ ctx->sections->name = talloc_strdup(ctx->sections, "global");
+
+ if (!pm_process( fn, param_sfunc, param_pfunc, ctx)) {
+ talloc_free(ctx);
+ return NULL;
+ }
+
+ return ctx;
+}
+
+int param_write(FILE *file, struct param_context *ctx)
+{
+ struct param_section *section;
+
+ if (file == NULL)
+ return -1;
+
+ if (ctx == NULL)
+ return -1;
+
+ for (section = ctx->sections; section; section = section->next) {
+ struct param *param;
+
+ fprintf(file, "[%s]\n", section->name);
+ for (param = section->parameters; param; param = param->next) {
+ fprintf(file, "\t%s = %s\n", param->name, param->value);
+ }
+ fprintf(file, "\n");
+ }
+
+ return 0;
+}