From 8daa83a594a2e98f39d764422bfbdbc62c9efd44 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 19:20:00 +0200 Subject: Adding upstream version 2:4.20.0+dfsg. Signed-off-by: Daniel Baumann --- source3/winbindd/idmap_hash/mapfile.c | 182 ++++++++++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 source3/winbindd/idmap_hash/mapfile.c (limited to 'source3/winbindd/idmap_hash/mapfile.c') diff --git a/source3/winbindd/idmap_hash/mapfile.c b/source3/winbindd/idmap_hash/mapfile.c new file mode 100644 index 0000000..82812a1 --- /dev/null +++ b/source3/winbindd/idmap_hash/mapfile.c @@ -0,0 +1,182 @@ +/* + * mapfile.c + * + * Copyright (C) Gerald Carter + * + * 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 . + * + */ + +#include "includes.h" +#include "system/filesys.h" +#include "winbindd/winbindd.h" +#include "idmap.h" +#include "idmap_hash.h" + +static FILE *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 (fseek(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 = fopen(mapfile_name, "r"); + 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; + + p = fgets(buffer, sizeof(buffer)-1, lw_map_file); + if (p == NULL) { + return false; + } + + /* Strip newlines and carriage returns */ + + len = strlen_m(buffer); + if (len == 0) { + return false; + } + len -= 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 = 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; +} -- cgit v1.2.3