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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* canonicalize_name.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "fstree.h"
static void normalize_slashes(char *filename)
{
char *dst = filename, *src = filename;
while (*src == '/' || *src == '\\')
++src;
while (*src != '\0') {
if (*src == '/' || *src == '\\') {
while (*src == '/' || *src == '\\')
++src;
if (*src == '\0')
break;
*(dst++) = '/';
} else {
*(dst++) = *(src++);
}
}
*dst = '\0';
}
int canonicalize_name(char *filename)
{
char *dst = filename, *src = filename;
normalize_slashes(filename);
while (*src != '\0') {
if (src[0] == '.') {
if (src[1] == '\0')
break;
if (src[1] == '/') {
src += 2;
continue;
}
if (src[1] == '.' && (src[2] == '/' || src[2] == '\0'))
return -1;
}
while (*src != '\0' && *src != '/')
*(dst++) = *(src++);
if (*src == '/')
*(dst++) = *(src++);
}
*dst = '\0';
normalize_slashes(filename);
return 0;
}
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