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/*
* (c) The University of Glasgow 2002
*
* Directory Runtime Support
*/
#include "HsUnix.h"
/*
* read an entry from the directory stream; opt for the
* re-entrant friendly way of doing this, if available.
*/
int
__hscore_readdir( DIR *dirPtr, struct dirent **pDirEnt )
{
#if HAVE_READDIR_R
struct dirent* p;
int res;
static unsigned int nm_max = (unsigned int)-1;
if (pDirEnt == NULL) {
return -1;
}
if (nm_max == (unsigned int)-1) {
#ifdef NAME_MAX
nm_max = NAME_MAX + 1;
#else
nm_max = pathconf(".", _PC_NAME_MAX);
if (nm_max == -1) { nm_max = 255; }
nm_max++;
#endif
}
p = (struct dirent*)malloc(sizeof(struct dirent) + nm_max);
if (p == NULL) return -1;
res = readdir_r(dirPtr, p, pDirEnt);
if (res != 0) {
*pDirEnt = NULL;
free(p);
}
else if (*pDirEnt == NULL) {
// end of stream
free(p);
}
return res;
#else
if (pDirEnt == NULL) {
return -1;
}
*pDirEnt = readdir(dirPtr);
if (*pDirEnt == NULL) {
return -1;
} else {
return 0;
}
#endif
}
char *
__hscore_d_name( struct dirent* d )
{
return (d->d_name);
}
void
__hscore_free_dirent(struct dirent *dEnt)
{
#if HAVE_READDIR_R
free(dEnt);
#endif
}
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