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https://github.com/ZDoom/raze-gles.git
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151 lines
3.9 KiB
C
Executable file
151 lines
3.9 KiB
C
Executable file
/*
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Copyright (C) 2003-2004 Ryan C. Gordon. and James Bentler
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Originally written by Ryan C. Gordon. (icculus@clutteredmind.org)
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Adapted to work with JonoF's port by James Bentler (bentler@cs.umn.edu)
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*/
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static char ApogeePath[256] = "/tmp/";
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#define PATH_SEP_CHAR '/'
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#define PATH_SEP_STR "/"
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#define ROOTDIR "/"
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#define CURDIR "./"
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#include "duke3d.h"
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#include <dirent.h>
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#include <errno.h>
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#ifndef MAX_PATH
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#define MAX_PATH 256
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#endif
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void FixFilePath(char *filename)
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{
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char *ptr;
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char *lastsep = filename;
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if ((!filename) || (*filename == '\0'))
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return;
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if (access(filename, F_OK) == 0) /* File exists; we're good to go. */
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return;
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for (ptr = filename; 1; ptr++)
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{
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if (*ptr == '\\')
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*ptr = PATH_SEP_CHAR;
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if ((*ptr == PATH_SEP_CHAR) || (*ptr == '\0'))
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{
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char pch = *ptr;
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struct dirent *dent = NULL;
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DIR *dir;
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if ((pch == PATH_SEP_CHAR) && (*(ptr + 1) == '\0'))
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return; /* eos is pathsep; we're done. */
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if (lastsep == ptr)
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continue; /* absolute path; skip to next one. */
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*ptr = '\0';
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if (lastsep == filename)
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{
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dir = opendir((*lastsep == PATH_SEP_CHAR) ? ROOTDIR : CURDIR);
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if (*lastsep == PATH_SEP_CHAR)
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{
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lastsep++;
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}
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}
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else
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{
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*lastsep = '\0';
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dir = opendir(filename);
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*lastsep = PATH_SEP_CHAR;
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lastsep++;
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}
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if (dir == NULL)
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{
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*ptr = PATH_SEP_CHAR;
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return; /* maybe dir doesn't exist? give up. */
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}
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while ((dent = readdir(dir)) != NULL)
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{
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if (strcasecmp(dent->d_name, lastsep) == 0)
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{
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/* found match; replace it. */
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strcpy(lastsep, dent->d_name);
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break;
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}
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}
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closedir(dir);
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*ptr = pch;
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lastsep = ptr;
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if (dent == NULL)
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return; /* no match. oh well. */
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if (pch == '\0') /* eos? */
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return;
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}
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}
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}
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int32 SafeOpenWrite(const char *_filename, int32 filetype)
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{
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int handle;
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char filename[MAX_PATH];
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strncpy(filename, _filename, sizeof(filename));
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filename[sizeof(filename) - 1] = '\0';
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FixFilePath(filename);
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handle = open(filename,O_RDWR | O_BINARY | O_CREAT | O_TRUNC
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, S_IREAD | S_IWRITE);
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if (handle == -1)
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Error("Error opening %s: %s",filename,strerror(errno));
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return handle;
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}
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void SafeWrite(int32 handle, void *buffer, int32 count)
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{
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unsigned iocount;
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while (count)
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{
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iocount = count > 0x8000 ? 0x8000 : count;
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if (write(handle,buffer,iocount) != (int)iocount)
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Error("File write failure writing %ld bytes",count);
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buffer = (void *)((byte *)buffer + iocount);
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count -= iocount;
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}
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}
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void GetUnixPathFromEnvironment(char *fullname, int32 length, const char *filename)
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{
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snprintf(fullname, length-1, "%s%s", ApogeePath, filename);
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}
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