/* * mapfile.c * * Copyright (C) Gerald Carter <jerry@samba.org> * * 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 "system/filesys.h" #include "winbindd/winbindd.h" #include "idmap.h" #include "idmap_hash.h" #include <stdio.h> XFILE *lw_map_file = NULL; /********************************************************************* ********************************************************************/ static bool mapfile_open(void) { const char *mapfile_name = NULL; /* If we have an open handle, just reset it */ if (lw_map_file) { return (x_tseek(lw_map_file, 0, SEEK_SET) == 0); } mapfile_name = lp_parm_const_string(-1, "idmap_hash", "name_map", NULL); if (!mapfile_name) { return false; } lw_map_file = x_fopen(mapfile_name, O_RDONLY, 0); if (!lw_map_file) { DEBUG(0,("can't open idmap_hash:name_map (%s). Error %s\n", mapfile_name, strerror(errno) )); return false; } return true; } /********************************************************************* ********************************************************************/ static bool mapfile_read_line(fstring key, fstring value) { char buffer[1024]; char *p; int len; if (!lw_map_file) return false; if ((p = x_fgets(buffer, sizeof(buffer)-1, lw_map_file)) == NULL) { return false; } /* Strip newlines and carriage returns */ len = strlen_m(buffer) - 1; while ((buffer[len] == '\n') || (buffer[len] == '\r')) { buffer[len--] = '\0'; } if ((p = strchr_m(buffer, '=')) == NULL ) { DEBUG(0,("idmap_hash: Bad line in name_map (%s)\n", buffer)); return false; } *p = '\0'; p++; strlcpy(key, buffer, sizeof(fstring)); strlcpy(value, p, sizeof(fstring)); /* Eat whitespace */ if (!trim_char(key, ' ', ' ')) return false; if (!trim_char(value, ' ', ' ')) return false; return true; } /********************************************************************* ********************************************************************/ static bool mapfile_close(void) { int ret = 0; if (lw_map_file) { ret = x_fclose(lw_map_file); lw_map_file = NULL; } return (ret == 0); } /********************************************************************* ********************************************************************/ NTSTATUS mapfile_lookup_key(TALLOC_CTX *ctx, const char *value, char **key) { fstring r_key, r_value; NTSTATUS ret = NT_STATUS_NOT_FOUND; if (!mapfile_open()) return NT_STATUS_OBJECT_PATH_NOT_FOUND; while (mapfile_read_line(r_key, r_value)) { if (strequal(r_value, value)) { ret = NT_STATUS_OK; /* We're done once finishing this block */ *key = talloc_strdup(ctx, r_key); if (!*key) { ret = NT_STATUS_NO_MEMORY; } break; } } mapfile_close(); return ret; } /********************************************************************* ********************************************************************/ NTSTATUS mapfile_lookup_value(TALLOC_CTX *ctx, const char *key, char **value) { fstring r_key, r_value; NTSTATUS ret = NT_STATUS_NOT_FOUND; if (!mapfile_open()) return NT_STATUS_OBJECT_PATH_NOT_FOUND; while (mapfile_read_line(r_key, r_value)) { if (strequal(r_key, key)) { ret = NT_STATUS_OK; /* We're done once finishing this block */ *value = talloc_strdup(ctx, r_value); if (!*key) { ret = NT_STATUS_NO_MEMORY; } break; } } mapfile_close(); return ret; }