/
stringwork.c
146 lines (140 loc) · 2.93 KB
/
stringwork.c
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#include <string.h>
#include <malloc.h>
extern char *DOMAIN;
char *adddots (char *dirname)
{
char *dotedname = malloc ((strlen (dirname) + 3 + 1) * sizeof (char));
int i = 0;
*(dotedname + i++) = '.';
*(dotedname + i++) = '.';
*(dotedname + i++) = '/';
while (*dirname != '\0')
{
*(dotedname + i++) = *dirname;
dirname++;
}
*(dotedname + i) = '\0';
return dotedname;
}
char *appendpath (char *rootdir, char *childdir)
{
char *destdir = malloc ((strlen (rootdir) + strlen (childdir) + 1 + 1) * sizeof (char));
int i = 0, flag;
while (*(rootdir + i) != '\0')
{
if (*(rootdir + i) == '/' && *(rootdir + i + 1) == '\0')
break;
*(destdir + i) = *(rootdir + i);
i++;
}
if (i == 1 && *destdir == '.')
i = 0;
if (i || *childdir == '/')
*(destdir + i++) = '/';
flag = 1;
while (*childdir != '\0')
{
if (flag == 1)
{
if (*childdir == '/')
{
childdir++;
continue;
}
else if (*childdir == '.')
flag = 2;
}
else if (flag == 2)
{
if (*childdir == '.')
flag = 3;
else if (*childdir == '/')
{
while (*(destdir + --i) != '/' && i != -1);
i++;
childdir++;
flag = 1;
continue;
}
}
else if (flag == 3 && *childdir == '/')
{
if (i == 2)
return "\0";
while (*(destdir + --i) != '/');
while (*(destdir + --i) != '/' && i != -1);
i++;
childdir++;
flag = 1;
continue;
}
else
{
flag = 0;
}
*(destdir + i++) = *childdir;
if (*childdir == '/')
flag = 1;
else if (*childdir != '.')
flag = 0;
childdir++;
}
if (flag != 0 && i != 1)
while (i && *(destdir + --i) != '/');
if (flag == 3)
while (i && *(destdir + --i) != '/');
*(destdir + i) = '\0';
return destdir;
}
int checkhtml (char *filename)
{
int i = strlen (filename) - 1, j;
char _html[] = "lmth.";
j = 0;
if (*(filename + i) == 'm')
j = 1;
while (*(filename + i) == _html[j] && _html[j] != '\0' && i)
{
i--;
j++;
}
if (j == 5)
return 1;
return 0;
}
char *abslink (char *soulink, char *reflink)
{
int i = 0;
char _http[] = "http://";
char *curdir;
while (_http[i] != '\0' && _http[i] == *(reflink + i))
i++;
if (i == 7)
{
reflink += i;
i = 0;
while (DOMAIN[i] != '\0' && *(reflink + i) != '/' && *(reflink + i) != '\0')
{
if (DOMAIN[i] != *(reflink + i))
return NULL;
i++;
}
if (DOMAIN[i] != '\0' || (*(reflink + i) != '/' && *(reflink + i) != '\0'))
return NULL;
reflink = reflink + i + 1;
if (*reflink == '\0' || *(reflink + strlen (reflink) - 1) == '/')
{
return appendpath (reflink, "index.html");
}
return reflink;
}
else
{
while (*(reflink + i) != ':' && *(reflink + i) != '\0' && *(reflink + i) != '/')
i++;
if (*(reflink + i) == ':' && *(reflink + i + 1) == '/' && *(reflink + i + 2) == '/')
return NULL;
}
curdir = appendpath (soulink, "..");
return appendpath (curdir, reflink);
}