-static char* Add (char* Orig, const char* New)
-/* Create a new path from Orig and New, delete Orig, return the result */
-{
- unsigned OrigLen, NewLen;
- char* NewPath;
-
- /* Get the length of the original string */
- OrigLen = Orig? strlen (Orig) : 0;
-
- /* Get the length of the new path */
- NewLen = strlen (New);
-
- /* Check for a trailing path separator and remove it */
- if (NewLen > 0 && (New [NewLen-1] == '\\' || New [NewLen-1] == '/')) {
- --NewLen;
- }
-
- /* Allocate memory for the new string */
- NewPath = (char*) xmalloc (OrigLen + NewLen + 2);
-
- /* Copy the strings */
- memcpy (NewPath, Orig, OrigLen);
- memcpy (NewPath+OrigLen, New, NewLen);
- NewPath [OrigLen+NewLen+0] = ';';
- NewPath [OrigLen+NewLen+1] = '\0';
-
- /* Delete the original path */
- xfree (Orig);
-
- /* Return the new path */
- return NewPath;
-}
-
-
-
-static char* Find (const char* Path, const char* File)
-/* Search for a file in a list of directories. If found, return the complete
- * name including the path in a malloced data area, if not found, return 0.
- */
-{
- const char* P;
- int Max;
- char PathName [FILENAME_MAX];
-
- /* Initialize variables */
- Max = sizeof (PathName) - strlen (File) - 2;
- if (Max < 0) {
- return 0;
- }
- P = Path;
-
- /* Handle a NULL pointer as replacement for an empty string */
- if (P == 0) {
- P = "";
- }
-
- /* Start the search */
- while (*P) {
- /* Copy the next path element into the buffer */
- int Count = 0;
- while (*P != '\0' && *P != ';' && Count < Max) {
- PathName [Count++] = *P++;
- }
-
- /* Add a path separator and the filename */
- if (Count) {
- PathName [Count++] = '/';
- }
- strcpy (PathName + Count, File);
-
- /* Check if this file exists */
- if (access (PathName, 0) == 0) {
- /* The file exists */
- return xstrdup (PathName);
- }
-
- /* Skip a list separator if we have one */
- if (*P == ';') {
- ++P;
- }
- }
-
- /* Not found */
- return 0;
-}
-
-
-