diff options
Diffstat (limited to 'ext/standard/link.c')
| -rw-r--r-- | ext/standard/link.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/ext/standard/link.c b/ext/standard/link.c new file mode 100644 index 0000000000..e148858a3c --- /dev/null +++ b/ext/standard/link.c @@ -0,0 +1,214 @@ +/* + +----------------------------------------------------------------------+ + | PHP HTML Embedded Scripting Language Version 3.0 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997,1998 PHP Development Team (See Credits file) | + +----------------------------------------------------------------------+ + | This program is free software; you can redistribute it and/or modify | + | it under the terms of one of the following licenses: | + | | + | A) 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. | + | | + | B) the PHP License as published by the PHP Development Team and | + | included in the distribution in the file: LICENSE | + | | + | 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 both licenses referred to here. | + | If you did not, or have any questions about PHP licensing, please | + | contact core@php.net. | + +----------------------------------------------------------------------+ + | Authors: | + | | + +----------------------------------------------------------------------+ + */ + +/* $Id$ */ +#ifdef THREAD_SAFE +#include "tls.h" +#endif +#include "php.h" +#include "php3_filestat.h" +#include "php_globals.h" + +#include <stdlib.h> +#if HAVE_UNISTD_H +#include <unistd.h> +#endif +#include <sys/stat.h> +#include <string.h> +#if HAVE_PWD_H +#if MSVC5 +#include "win32/pwd.h" +#else +#include <pwd.h> +#endif +#endif +#if HAVE_GRP_H +#if MSVC5 +#include "win32/grp.h" +#else +#include <grp.h> +#endif +#endif +#include <errno.h> +#include <ctype.h> + +#include "safe_mode.h" +#include "php3_link.h" + +/* {{{ proto string readlink(string filename) + Return the target of a symbolic link */ +void php3_readlink(INTERNAL_FUNCTION_PARAMETERS) +{ +#if HAVE_SYMLINK + pval *filename; + char buff[256]; + int ret; + + if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &filename) == FAILURE) { + WRONG_PARAM_COUNT; + } + convert_to_string(filename); + + ret = readlink(filename->value.str.val, buff, 255); + if (ret == -1) { + php3_error(E_WARNING, "readlink failed (%s)", strerror(errno)); + RETURN_FALSE; + } + /* Append NULL to the end of the string */ + buff[ret] = '\0'; + RETURN_STRING(buff,1); +#endif +} +/* }}} */ + +/* {{{ proto int linkinfo(string filename) + Returns the st_dev field of the UNIX C stat structure describing the link */ +void php3_linkinfo(INTERNAL_FUNCTION_PARAMETERS) +{ +#if HAVE_SYMLINK + pval *filename; + struct stat sb; + int ret; + + if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &filename) == FAILURE) { + WRONG_PARAM_COUNT; + } + convert_to_string(filename); + + ret = lstat(filename->value.str.val, &sb); + if (ret == -1) { + php3_error(E_WARNING, "LinkInfo failed (%s)", strerror(errno)); + RETURN_LONG(-1L); + } + RETURN_LONG((long) sb.st_dev); +#endif +} +/* }}} */ + +/* {{{ proto int symlink(string target, string link) + Create a symbolic link */ +void php3_symlink(INTERNAL_FUNCTION_PARAMETERS) +{ +#if HAVE_SYMLINK + pval *topath, *frompath; + int ret; + + if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &topath, &frompath) == FAILURE) { + WRONG_PARAM_COUNT; + } + convert_to_string(topath); + convert_to_string(frompath); + + if (PG(safe_mode) && !_php3_checkuid(topath->value.str.val, 2)) { + RETURN_FALSE; + } + + ret = symlink(topath->value.str.val, frompath->value.str.val); + if (ret == -1) { + php3_error(E_WARNING, "SymLink failed (%s)", strerror(errno)); + RETURN_FALSE; + } + RETURN_TRUE; +#endif +} +/* }}} */ + +/* {{{ proto int link(string target, string link) + Create a hard link */ +void php3_link(INTERNAL_FUNCTION_PARAMETERS) +{ +#if HAVE_LINK + pval *topath, *frompath; + int ret; + + if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &topath, &frompath) == FAILURE) { + WRONG_PARAM_COUNT; + } + convert_to_string(topath); + convert_to_string(frompath); + + if (PG(safe_mode) && !_php3_checkuid(topath->value.str.val, 2)) { + RETURN_FALSE; + } + + ret = link(topath->value.str.val, frompath->value.str.val); + if (ret == -1) { + php3_error(E_WARNING, "Link failed (%s)", strerror(errno)); + RETURN_FALSE; + } + RETURN_TRUE; +#endif +} +/* }}} */ + +/* {{{ proto int unlink(string filename) + Delete a file */ +void php3_unlink(INTERNAL_FUNCTION_PARAMETERS) +{ + pval *filename; + int ret; + TLS_VARS; + + if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &filename) == FAILURE) { + WRONG_PARAM_COUNT; + } + convert_to_string(filename); + + if (PG(safe_mode) && !_php3_checkuid(filename->value.str.val, 2)) { + RETURN_FALSE; + } + + ret = unlink(filename->value.str.val); + if (ret == -1) { + php3_error(E_WARNING, "Unlink failed (%s)", strerror(errno)); + RETURN_FALSE; + } + /* Clear stat cache */ + php3_clearstatcache(INTERNAL_FUNCTION_PARAM_PASSTHRU); + RETURN_TRUE; +} +/* }}} */ + +function_entry link_functions[] = { + {"readlink", php3_readlink, NULL}, + {"linkinfo", php3_linkinfo, NULL}, + {"symlink", php3_symlink, NULL}, + {"link", php3_link, NULL}, + {"unlink", php3_unlink, NULL}, + {NULL, NULL, NULL} +}; + + +/* + * Local variables: + * tab-width: 4 + * c-basic-offset: 4 + * End: + */ |