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/*
** psplit() - Portable replacement for fnsplit(), _splitpath(), etc.
**
** Splits a full DOS pathname into drive, path, file, and extension
** specifications. Works with forward or back slash path separators and
** network file names, e.g. NET:LOONEY/BIN\WUMPUS.COM, Z:\MYDIR.NEW/NAME.EXT
**
** Arguments: 1 - Full pathname to split
** 2 - Buffer for drive
** 3 - Buffer for path
** 4 - Buffer for name
** 5 - Buffer for extension
**
** Returns: Nothing
**
** public domain by Bob Stout
*/
#include <stdlib.h>
#include <string.h>
#define NUL '\0'
void psplit(char *path, char *drv, char *dir, char *fname, char *ext)
{
char ch, *ptr, *p;
/* convert slashes to backslashes for searching */
for (ptr = path; *ptr; ++ptr)
{
if ('/' == *ptr)
*ptr = '\\';
}
/* look for drive spec */
if (NULL != (ptr = strchr(path, ':')))
{
++ptr;
if (drv)
{
strncpy(drv, path, ptr - path);
drv[ptr - path] = NUL;
}
path = ptr;
}
else if (drv)
*drv = NUL;
/* find rightmost backslash or leftmost colon */
if (NULL == (ptr = strrchr(path, '\\')))
ptr = (strchr(path, ':'));
if (!ptr)
{
ptr = path; /* obviously, no path */
if (dir)
*dir = NUL;
}
else
{
++ptr; /* skip the delimiter */
if (dir)
{
ch = *ptr;
*ptr = NUL;
strcpy(dir, path);
*ptr = ch;
}
}
if (NULL == (p = strrchr(ptr, '.')))
{
if (fname)
strcpy(fname, ptr);
if (ext)
*ext = NUL;
}
else
{
*p = NUL;
if (fname)
strcpy(fname, ptr);
*p = '.';
if (ext)
strcpy(ext, p);
}
}
#ifdef TEST
#include <stdio.h>
int main(int argc, char *argv[])
{
char drive[10], pathname[FILENAME_MAX], fname[9], ext[5];
while (--argc)
{
psplit(*++argv, drive, pathname, fname, ext);
printf("psplit(%s) returns:\n drive = %s\n path = %s\n"
" name = %s\n ext = %s\n",
*argv, drive, pathname, fname, ext);
}
return EXIT_SUCCESS;
}
#endif
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