/* * 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 *name, const char *section_name) { struct param_section *section = param_get_section(ctx, section_name); if (section == NULL) return NULL; return param_section_get(section, name); } struct param_section *param_add_section(struct param_context *ctx, const char *section_name) { struct param_section *section; section = talloc_zero(ctx, struct param_section); if (section == NULL) return NULL; section->name = talloc_strdup(section, section_name); DLIST_ADD_END(ctx->sections, section, struct param_section *); return section; } /* Look up parameter. If it is not found, add it */ struct param_opt *param_get_add(struct param_context *ctx, const char *name, const char *section_name) { struct param_section *section; struct param_opt *p; SMB_ASSERT(section_name != NULL); SMB_ASSERT(name != NULL); section = param_get_section(ctx, section_name); if (section == NULL) { section = param_add_section(ctx, section_name); } 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_END(section->parameters, p, struct param_opt *); } return p; } const char *param_get_string(struct param_context *ctx, const char *param, const char *section) { struct param_opt *p = param_get(ctx, param, section); if (p == NULL) return NULL; return p->value; } int param_set_string(struct param_context *ctx, const char *param, const char *value, const char *section) { struct param_opt *p = param_get_add(ctx, param, section); 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 *param, const char *separator, const char *section) { struct param_opt *p = param_get(ctx, param, section); 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 *param, const char **list, const char *section) { struct param_opt *p = param_get_add(ctx, param, section); p->value = str_list_join(p, list, ' '); return 0; } int param_get_int(struct param_context *ctx, const char *param, int default_v, const char *section) { const char *value = param_get_string(ctx, param, section); if (value) return strtol(value, NULL, 0); return default_v; } void param_set_int(struct param_context *ctx, const char *param, int value, const char *section) { 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 *param, unsigned long default_v, const char *section) { const char *value = param_get_string(ctx, param, section); if (value) return strtoul(value, NULL, 0); return default_v; } void param_set_ulong(struct param_context *ctx, const char *name, unsigned long value, const char *section) { struct param_opt *p = param_get_add(ctx, name, section); 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_END(ctx->sections, section, struct param_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_use(struct loadparm_context *lp_ctx, struct param_context *ctx) { struct param_section *section; for (section = ctx->sections; section; section = section->next) { struct param_opt *param; bool isglobal = strcmp(section->name, "global") == 0; for (param = section->parameters; param; param = param->next) { if (isglobal) lp_do_global_parameter(lp_ctx, param->key, param->value); else { struct loadparm_service *service = lp_service(lp_ctx, section->name); if (service == NULL) service = lp_add_service(lp_ctx, lp_default_service(lp_ctx), section->name); lp_do_service_parameter(lp_ctx, service, param->key, param->value); } } } 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; }