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- #include <Errors.h>
- #include <Files.h>
- #ifndef THINK_C
- #include <Strings.h>
- #endif
-
- #ifndef FSFCBLen
- #define FSFCBLen (*(short *)0x3F6)
- #endif
-
- #include <errno.h>
- #include <stdlib.h>
- #include <string.h>
-
- #include "macdir.h"
-
- int closedir(dPtr) DIR *dPtr; {
- free(dPtr);
-
- return 0;
- }
-
- DIR *opendir(dirName) char *dirName; {
- int fullPath, pathLen;
- char *s, pName[256];
- HParamBlockRec hPB;
- CInfoPBRec cPB;
- DIR *dPtr;
- OSErr err;
-
- if (dirName == NULL || *dirName == '\0' || (pathLen = strlen(dirName)) > 255) {
- errno = EINVAL;
- return NULL;
- }
-
- if (FSFCBLen <= 0) {
- errno = ENOTDIR;
- return NULL;
- }
-
- /* Get information about volume. */
-
- memset(&hPB, '\0', sizeof(hPB));
-
- strcpy(pName, dirName);
-
- if (((s = strchr(pName, ':')) == NULL) || (*pName == ':')) {
- fullPath = false;
- } else {
- *(s + 1) = '\0';
- c2pstr(pName);
- hPB.volumeParam.ioVolIndex = -1;
- fullPath = true;
- }
-
- hPB.volumeParam.ioNamePtr = (StringPtr)pName;
-
- err = PBHGetVInfo(&hPB, 0);
-
- if ((err != noErr) || (hPB.volumeParam.ioVFSID != 0)) {
- errno = ENOENT;
- return NULL;
- }
-
- /* Get information about file. */
-
- memset(&cPB, '\0', sizeof(cPB));
-
- strcpy(pName, dirName);
- c2pstr(pName);
-
- if (fullPath)
- cPB.hFileInfo.ioVRefNum = hPB.volumeParam.ioVRefNum;
-
- cPB.hFileInfo.ioNamePtr = (StringPtr)pName;
-
- err = PBGetCatInfo(&cPB, false);
-
- if (err != noErr) {
- errno = (err == fnfErr) ? ENOENT : EIO;
- return NULL;
- }
-
- if (!(cPB.hFileInfo.ioFlAttrib & ioDirMask)) {
- errno = ENOTDIR;
- return NULL;
- }
-
- /* Get space for, and fill in, DIR structure. */
-
- if ((dPtr = (DIR *)malloc(sizeof(DIR))) == NULL) {
- return NULL;
- }
-
- dPtr->ioVRefNum = cPB.dirInfo.ioVRefNum;
- dPtr->ioDrDirID = cPB.dirInfo.ioDrDirID;
- dPtr->ioFDirIndex = 1;
- dPtr->flags = 0;
-
- return dPtr;
- }
-
- struct dirent *readdir(dPtr) DIR *dPtr; {
- struct dirent *dirPtr;
- CInfoPBRec cPB;
- char name[32];
- OSErr err;
-
- if (dPtr->flags) {
- return NULL;
- }
-
- /* Get information about file. */
-
- memset(&cPB, '\0', sizeof(cPB));
-
- cPB.hFileInfo.ioNamePtr = (StringPtr)name;
- cPB.hFileInfo.ioFDirIndex = dPtr->ioFDirIndex;
- cPB.hFileInfo.ioVRefNum = dPtr->ioVRefNum;
- cPB.hFileInfo.ioDirID = dPtr->ioDrDirID;
-
- err = PBGetCatInfo(&cPB, false);
-
- if (err != noErr) {
- dPtr->flags = 0xff;
- errno = (err == fnfErr) ? ENOENT : EIO;
- return NULL;
- }
-
- p2cstr((StringPtr)name);
-
- dirPtr = &dPtr->currEntry;
-
- dirPtr->d_fileno = dPtr->ioFDirIndex++;
- dirPtr->d_namlen = strlen(name);
- strcpy(dirPtr->d_name, name);
- dirPtr->d_reclen = sizeof(struct dirent) - sizeof(dirPtr->d_name) + dirPtr->d_namlen;
-
- return dirPtr;
- }
-