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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 = PBHGetVInfoSync(&hPB);
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 = PBGetCatInfoSync(&cPB);
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 = PBGetCatInfoSync(&cPB);
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;
}
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