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authorJelmer Vernooij <jelmer@samba.org>2005-08-30 13:58:48 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:35:02 -0500
commita3a7881d39d0c294d0cd2ce13203478fb889b07c (patch)
tree4f2a78f93e9a369cd6658f2f6ef180b8f27ebe70 /source4/param
parentf3c121eb748b37a8b60d353d371bed9b79d0e37c (diff)
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r9798: Add generic functions for handling smb.conf files (the parameters don't to be pre-declared). Also doesn't use any globals, so multiple files can be loaded at once.
Currently uses the prefix "param" for all functions and structures; suggestions for better ones are welcome... Remove old smb.conf-parsing code from libsamba3. (This used to be commit 414e5f7f6dc38a8fde3b61d524a664f56f9ea592)
Diffstat (limited to 'source4/param')
-rw-r--r--source4/param/config.mk3
-rw-r--r--source4/param/generic.c231
-rw-r--r--source4/param/generic.h41
3 files changed, 274 insertions, 1 deletions
diff --git a/source4/param/config.mk b/source4/param/config.mk
index 1f5b636754..5126f7cd52 100644
--- a/source4/param/config.mk
+++ b/source4/param/config.mk
@@ -2,4 +2,5 @@
INIT_OBJ_FILES = dynconfig.o
ADD_OBJ_FILES = param/loadparm.o \
param/params.o \
- passdb/secrets.o
+ passdb/secrets.o \
+ param/generic.o
diff --git a/source4/param/generic.c b/source4/param/generic.c
new file mode 100644
index 0000000000..0129f82eeb
--- /dev/null
+++ 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;
+}
diff --git a/source4/param/generic.h b/source4/param/generic.h
new file mode 100644
index 0000000000..1d3a5c7cb3
--- /dev/null
+++ b/source4/param/generic.h
@@ -0,0 +1,41 @@
+/*
+ Unix SMB/CIFS implementation.
+ Generic parameter parsing interface
+ 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.
+*/
+
+#ifndef _PARAM_GENERIC_H /* _PARAM_GENERIC_H */
+#define _PARAM_GENERIC_H
+
+struct param_context {
+ struct param_section *sections;
+};
+
+struct param {
+ const char *name;
+ char *value;
+ const char **list_value;
+ struct param *prev, *next;
+};
+
+struct param_section {
+ const char *name;
+ struct param_section *prev, *next;
+ struct param *parameters;
+};
+
+#endif /* _PARAM_GENERIC_H */