| /* Perform tilde expansion on paths for GDB and gdbserver. |
| |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| 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 "common-defs.h" |
| #include "gdb_tilde_expand.h" |
| #include <glob.h> |
| |
| /* RAII-style class wrapping "glob". */ |
| |
| class gdb_glob |
| { |
| public: |
| /* Construct a "gdb_glob" object by calling "glob" with the provided |
| parameters. This function can throw if "glob" fails. */ |
| gdb_glob (const char *pattern, int flags, |
| int (*errfunc) (const char *epath, int eerrno)) |
| { |
| int ret = glob (pattern, flags, errfunc, &m_glob); |
| |
| if (ret != 0) |
| { |
| if (ret == GLOB_NOMATCH) |
| error (_("Could not find a match for '%s'."), pattern); |
| else |
| error (_("glob could not process pattern '%s'."), |
| pattern); |
| } |
| } |
| |
| /* Destroy the object and free M_GLOB. */ |
| ~gdb_glob () |
| { |
| globfree (&m_glob); |
| } |
| |
| /* Return the GL_PATHC component of M_GLOB. */ |
| int pathc () const |
| { |
| return m_glob.gl_pathc; |
| } |
| |
| /* Return the GL_PATHV component of M_GLOB. */ |
| char **pathv () const |
| { |
| return m_glob.gl_pathv; |
| } |
| |
| private: |
| /* The actual glob object we're dealing with. */ |
| glob_t m_glob; |
| }; |
| |
| /* See common/gdb_tilde_expand.h. */ |
| |
| std::string |
| gdb_tilde_expand (const char *dir) |
| { |
| gdb_glob glob (dir, GLOB_TILDE_CHECK, NULL); |
| |
| gdb_assert (glob.pathc () > 0); |
| /* "glob" may return more than one match to the path provided by the |
| user, but we are only interested in the first match. */ |
| std::string expanded_dir = glob.pathv ()[0]; |
| |
| return expanded_dir; |
| } |
| |
| /* See common/gdb_tilde_expand.h. */ |
| |
| gdb::unique_xmalloc_ptr<char> |
| gdb_tilde_expand_up (const char *dir) |
| { |
| gdb_glob glob (dir, GLOB_TILDE_CHECK, NULL); |
| |
| gdb_assert (glob.pathc () > 0); |
| /* "glob" may return more than one match to the path provided by the |
| user, but we are only interested in the first match. */ |
| return gdb::unique_xmalloc_ptr<char> (xstrdup (glob.pathv ()[0])); |
| } |