#if PLATFORM_UNIX
#include <sys/types.h>
+#include <pwd.h>
+#include <fcntl.h>
+#include <unistd.h>
#include <dirent.h>
-// public domain code from PhysicsFS: http://icculus.org/physfs/
+// some but not all of this is code from PhysicsFS: http://icculus.org/physfs/
+// the zlib license on physfs allows this cut-and-pasting.
static int locateOneElement(char *buf)
{
char *ptr;
} /* locateOneElement */
-static inline int PHYSFSEXT_locateCorrectCase(char *buf)
+static inline const char *getUserDirByUID(void)
+{
+ struct passwd *pw = getpwuid(getuid());
+ if (pw != NULL)
+ return(pw->pw_dir);
+ return(NULL);
+} /* getUserDirByUID */
+
+
+static inline const char *getPrefPath(void)
+{
+ static char *prefpath = NULL;
+ if (prefpath == NULL)
+ {
+ const char *homedir = getenv("HOME");
+ if (homedir == NULL)
+ homedir = getUserDirByUID();
+ if (homedir == NULL)
+ homedir = "."; // oh well.
+
+ const char *PREFPATHNAME = ".lugaru";
+ size_t len = strlen(homedir) + strlen(PREFPATHNAME) + 2;
+ prefpath = new char[len];
+ snprintf(prefpath, len, "%s/%s", homedir, PREFPATHNAME);
+ }
+ return(prefpath);
+}
+
+static int locateCorrectCase(char *buf, bool makedirs)
{
int rc;
char *ptr;
char *prevptr;
ptr = prevptr = buf;
- if (*ptr == '\0')
- return(0); /* Uh...I guess that's success. */
-
while (ptr = strchr(ptr + 1, '/'))
{
*ptr = '\0'; /* block this path section off */
rc = locateOneElement(buf);
- *ptr = '/'; /* restore path separator */
if (!rc)
- return(-2); /* missing element in path. */
+ {
+ if (makedirs) /* normal if we're writing; build dirs! */
+ mkdir(buf, S_IRWXU);
+ else
+ {
+ *ptr = '/'; /* restore path separator */
+ return(-2); /* missing element in path. */
+ } /* else */
+ } /* if */
+ *ptr = '/'; /* restore path separator */
} /* while */
/* check final element... */
return(locateOneElement(buf) ? 0 : -1);
-} /* PHYSFSEXT_locateCorrectCase */
+}
+
+
+static int locateCorrectFile(char *buf, const char *mode)
+{
+ if (*buf == '\0')
+ return(0); /* Uh...I guess that's failure. */
+
+ assert((mode[0] == 'w') || (mode[0] == 'r'));
+
+ bool iswriting = (mode[0] == 'w');
+ const char *prefpath = getPrefPath();
+ size_t len = strlen(buf) + strlen(prefpath) + 2;
+ char *prefpathfile = (char *) alloca(len);
+ snprintf(prefpathfile, len, "%s/%s", prefpath, buf);
+
+ int rc = locateCorrectCase(prefpathfile, iswriting); /* favor prefpath. */
+ if (rc == 0) // found?
+ strcpy(buf, prefpathfile);
+ else if ((rc < 0) && (!iswriting)) /* not writing? Try game dir... */
+ rc = locateCorrectCase(buf, iswriting);
+
+ return(rc);
+} /* locateCorrectFile */
#endif
-static char g_filename[ 256];
-char* ConvertFileName( const char* orgfilename)
+static char g_filename[4096];
+char* ConvertFileName( const char* orgfilename, const char *mode)
{
// translate filename into proper path name
if (orgfilename[ 0] == ':')
{
if (g_filename[ n] == ':')
g_filename[ n] = '/';
+
+ else if (g_filename[ n] == '\\')
+ g_filename[ n] = '/';
}
#if PLATFORM_UNIX
- PHYSFSEXT_locateCorrectCase(g_filename);
+ locateCorrectFile(g_filename, mode);
#endif
return g_filename;