DBM *
sdbm_open(register char *file, register int flags, register int mode)
{
register DBM *db;
register char *dirname;
register char *pagname;
size_t filelen;
const size_t dirfext_len = sizeof(DIRFEXT "");
const size_t pagfext_len = sizeof(PAGFEXT "");
if (file == NULL || !*file)
return errno = EINVAL, (DBM *) NULL;
/*
* need space for two separate filenames
*/
filelen = strlen(file);
if ((dirname = (char *) malloc(filelen + dirfext_len + 1
+ filelen + pagfext_len + 1)) == NULL)
return errno = ENOMEM, (DBM *) NULL;
/*
* build the file names
*/
memcpy(dirname, file, filelen);
memcpy(dirname + filelen, DIRFEXT, dirfext_len + 1);
pagname = dirname + filelen + dirfext_len + 1;
memcpy(pagname, file, filelen);
memcpy(pagname + filelen, PAGFEXT, pagfext_len + 1);
db = sdbm_prep(dirname, pagname, flags, mode);
free((char *) dirname);
return db;
}
DBM *
sdbm_open(register char *file, register int flags, register int mode)
{
register DBM *db;
register char *dirname;
register char *pagname;
register int n;
if (file == NULL || !*file)
return errno = EINVAL, (DBM *) NULL;
/*
* need space for two seperate filenames
*/
n = strlen(file) * 2 + strlen(DIRFEXT) + strlen(PAGFEXT) + 2;
if ((dirname = (char *) malloc((unsigned) n)) == NULL)
return errno = ENOMEM, (DBM *) NULL;
/*
* build the file names
*/
dirname = strcat(strcpy(dirname, file), DIRFEXT);
pagname = strcpy(dirname + strlen(dirname) + 1, file);
pagname = strcat(pagname, PAGFEXT);
db = sdbm_prep(dirname, pagname, flags, mode);
free((char *) dirname);
return db;
}