113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
/*
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* Copyright 2014 vincent Sanders <vince@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file
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* Table operations for files with posix compliant path separator.
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*/
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#include <stdarg.h>
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#include <string.h>
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#include "desktop/gui_factory.h"
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#include "utils/utils.h"
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#include "utils/file.h"
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/**
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* Generate a posix path from one or more component elemnts.
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*
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* If a string is allocated it must be freed by the caller.
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*
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* @param[in,out] str pointer to string pointer if this is NULL enough
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* storage will be allocated for the complete path.
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* @param[in,out] size The size of the space available if \a str not
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* NULL on input and if not NULL set to the total
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* output length on output.
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* @param[in] nemb The number of elements.
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* @param[in] ... The elements of the path as string pointers.
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* @return NSERROR_OK and the complete path is written to str
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* or error code on faliure.
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*/
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static nserror posix_vmkpath(char **str, size_t *size, size_t nelm, va_list ap)
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{
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return vsnstrjoin(str, size, '/', nelm, ap);
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}
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/**
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* Get the basename of a file using posix path handling.
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*
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* This gets the last element of a path and returns it.
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*
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* @param[in] path The path to extract the name from.
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* @param[in,out] str Pointer to string pointer if this is NULL enough
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* storage will be allocated for the path element.
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* @param[in,out] size The size of the space available if \a
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* str not NULL on input and set to the total
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* output length on output.
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* @return NSERROR_OK and the complete path is written to str
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* or error code on faliure.
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*/
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static nserror posix_basename(const char *path, char **str, size_t *size)
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{
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const char *leafname;
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char *fname;
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if (path == NULL) {
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return NSERROR_BAD_PARAMETER;
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}
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leafname = strrchr(path, '/');
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if (!leafname) {
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leafname = path;
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} else {
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leafname += 1;
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}
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fname = strdup(leafname);
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if (fname == NULL) {
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return NSERROR_NOMEM;
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}
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*str = fname;
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if (size != NULL) {
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*size = strlen(fname);
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}
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return NSERROR_OK;
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}
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/* exported interface documented in utils/file.h */
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nserror netsurf_mkpath(char **str, size_t *size, size_t nelm, ...)
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{
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va_list ap;
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nserror ret;
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va_start(ap, nelm);
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ret = guit->file->mkpath(str, size, nelm, ap);
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va_end(ap);
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return ret;
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}
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/* default to using the posix file handling */
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static struct gui_file_table file_table = {
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.mkpath = posix_vmkpath,
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.basename = posix_basename,
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};
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struct gui_file_table *default_file_table = &file_table;
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