/* * Standard directory I/O support routines for PhysicsFS. * * Please see the file LICENSE in the source's root directory. * * This file written by Ryan C. Gordon. */ #if HAVE_CONFIG_H # include #endif #include #include #include #include "physfs.h" #define __PHYSICSFS_INTERNAL__ #include "physfs_internal.h" static PHYSFS_sint64 DIR_read(fvoid *opaque, void *buffer, PHYSFS_uint32 objSize, PHYSFS_uint32 objCount) { PHYSFS_sint64 retval; retval = __PHYSFS_platformRead(opaque, buffer, objSize, objCount); return(retval); } /* DIR_read */ static PHYSFS_sint64 DIR_write(fvoid *opaque, const void *buffer, PHYSFS_uint32 objSize, PHYSFS_uint32 objCount) { PHYSFS_sint64 retval; retval = __PHYSFS_platformWrite(opaque, buffer, objSize, objCount); return(retval); } /* DIR_write */ static int DIR_eof(fvoid *opaque) { return(__PHYSFS_platformEOF(opaque)); } /* DIR_eof */ static PHYSFS_sint64 DIR_tell(fvoid *opaque) { return(__PHYSFS_platformTell(opaque)); } /* DIR_tell */ static int DIR_seek(fvoid *opaque, PHYSFS_uint64 offset) { return(__PHYSFS_platformSeek(opaque, offset)); } /* DIR_seek */ static PHYSFS_sint64 DIR_fileLength(fvoid *opaque) { return(__PHYSFS_platformFileLength(opaque)); } /* DIR_fileLength */ static int DIR_fileClose(fvoid *opaque) { /* * we manually flush the buffer, since that's the place a close will * most likely fail, but that will leave the file handle in an undefined * state if it fails. Flush failures we can recover from. */ BAIL_IF_MACRO(!__PHYSFS_platformFlush(opaque), NULL, 0); BAIL_IF_MACRO(!__PHYSFS_platformClose(opaque), NULL, 0); return(1); } /* DIR_fileClose */ static int DIR_isArchive(const char *filename, int forWriting) { /* directories ARE archives in this driver... */ return(__PHYSFS_platformIsDirectory(filename)); } /* DIR_isArchive */ static void *DIR_openArchive(const char *name, int forWriting) { const char *dirsep = PHYSFS_getDirSeparator(); char *retval = NULL; size_t namelen = strlen(name); size_t seplen = strlen(dirsep); /* !!! FIXME: when is this not called right before openArchive? */ BAIL_IF_MACRO(!DIR_isArchive(name, forWriting), ERR_UNSUPPORTED_ARCHIVE, 0); retval = malloc(namelen + seplen + 1); BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL); /* make sure there's a dir separator at the end of the string */ strcpy(retval, name); if (strcmp((name + namelen) - seplen, dirsep) != 0) strcat(retval, dirsep); return(retval); } /* DIR_openArchive */ static void DIR_enumerateFiles(dvoid *opaque, const char *dname, int omitSymLinks, PHYSFS_StringCallback cb, void *callbackdata) { char *d = __PHYSFS_platformCvtToDependent((char *)opaque, dname, NULL); if (d != NULL) { __PHYSFS_platformEnumerateFiles(d, omitSymLinks, cb, callbackdata); free(d); } /* if */ } /* DIR_enumerateFiles */ static int DIR_exists(dvoid *opaque, const char *name) { char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL); int retval; BAIL_IF_MACRO(f == NULL, NULL, 0); retval = __PHYSFS_platformExists(f); free(f); return(retval); } /* DIR_exists */ static int DIR_isDirectory(dvoid *opaque, const char *name, int *fileExists) { char *d = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL); int retval = 0; BAIL_IF_MACRO(d == NULL, NULL, 0); *fileExists = __PHYSFS_platformExists(d); if (*fileExists) retval = __PHYSFS_platformIsDirectory(d); free(d); return(retval); } /* DIR_isDirectory */ static int DIR_isSymLink(dvoid *opaque, const char *name, int *fileExists) { char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL); int retval = 0; BAIL_IF_MACRO(f == NULL, NULL, 0); *fileExists = __PHYSFS_platformExists(f); if (*fileExists) retval = __PHYSFS_platformIsSymLink(f); free(f); return(retval); } /* DIR_isSymLink */ static PHYSFS_sint64 DIR_getLastModTime(dvoid *opaque, const char *name, int *fileExists) { char *d = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL); PHYSFS_sint64 retval = -1; BAIL_IF_MACRO(d == NULL, NULL, 0); *fileExists = __PHYSFS_platformExists(d); if (*fileExists) retval = __PHYSFS_platformGetLastModTime(d); free(d); return(retval); } /* DIR_getLastModTime */ static fvoid *doOpen(dvoid *opaque, const char *name, void *(*openFunc)(const char *filename), int *fileExists) { char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL); void *rc = NULL; BAIL_IF_MACRO(f == NULL, NULL, NULL); if (fileExists != NULL) { *fileExists = __PHYSFS_platformExists(f); if (!(*fileExists)) { free(f); return(NULL); } /* if */ } /* if */ rc = openFunc(f); free(f); return((fvoid *) rc); } /* doOpen */ static fvoid *DIR_openRead(dvoid *opaque, const char *fnm, int *exist) { return(doOpen(opaque, fnm, __PHYSFS_platformOpenRead, exist)); } /* DIR_openRead */ static fvoid *DIR_openWrite(dvoid *opaque, const char *filename) { return(doOpen(opaque, filename, __PHYSFS_platformOpenWrite, NULL)); } /* DIR_openWrite */ static fvoid *DIR_openAppend(dvoid *opaque, const char *filename) { return(doOpen(opaque, filename, __PHYSFS_platformOpenAppend, NULL)); } /* DIR_openAppend */ static int DIR_remove(dvoid *opaque, const char *name) { char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL); int retval; BAIL_IF_MACRO(f == NULL, NULL, 0); retval = __PHYSFS_platformDelete(f); free(f); return(retval); } /* DIR_remove */ static int DIR_mkdir(dvoid *opaque, const char *name) { char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL); int retval; BAIL_IF_MACRO(f == NULL, NULL, 0); retval = __PHYSFS_platformMkDir(f); free(f); return(retval); } /* DIR_mkdir */ static void DIR_dirClose(dvoid *opaque) { free(opaque); } /* DIR_dirClose */ const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_DIR = { "", DIR_ARCHIVE_DESCRIPTION, "Ryan C. Gordon ", "http://icculus.org/physfs/", }; const PHYSFS_Archiver __PHYSFS_Archiver_DIR = { &__PHYSFS_ArchiveInfo_DIR, DIR_isArchive, /* isArchive() method */ DIR_openArchive, /* openArchive() method */ DIR_enumerateFiles, /* enumerateFiles() method */ DIR_exists, /* exists() method */ DIR_isDirectory, /* isDirectory() method */ DIR_isSymLink, /* isSymLink() method */ DIR_getLastModTime, /* getLastModTime() method */ DIR_openRead, /* openRead() method */ DIR_openWrite, /* openWrite() method */ DIR_openAppend, /* openAppend() method */ DIR_remove, /* remove() method */ DIR_mkdir, /* mkdir() method */ DIR_dirClose, /* dirClose() method */ DIR_read, /* read() method */ DIR_write, /* write() method */ DIR_eof, /* eof() method */ DIR_tell, /* tell() method */ DIR_seek, /* seek() method */ DIR_fileLength, /* fileLength() method */ DIR_fileClose /* fileClose() method */ }; /* end of dir.c ... */