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/* vi: set sw=4 ts=4: */
/* Copyright (C) 2003 Manuel Novoa III
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* Nov 6, 2003 Initial version.
*
* NOTE: This implementation is quite strict about requiring all
* field seperators. It also does not allow leading whitespace
* except when processing the numeric fields. glibc is more
* lenient. See the various glibc difference comments below.
*
* TODO:
* Move to dynamic allocation of (currently statically allocated)
* buffers; especially for the group-related functions since
* large group member lists will cause error returns.
*/
#ifndef GETXXKEY_R_FUNC
#error GETXXKEY_R_FUNC is not defined!
#endif
int GETXXKEY_R_FUNC(GETXXKEY_R_KEYTYPE key,
GETXXKEY_R_ENTTYPE *__restrict resultbuf,
char *__restrict buffer, size_t buflen,
GETXXKEY_R_ENTTYPE **__restrict result)
{
FILE *stream;
int rv;
*result = NULL;
stream = fopen_for_read(GETXXKEY_R_PATHNAME);
if (!stream)
return errno;
while (1) {
rv = bb__pgsreader(GETXXKEY_R_PARSER, resultbuf, buffer, buflen, stream);
if (!rv) {
if (GETXXKEY_R_TEST(resultbuf)) { /* found key? */
*result = resultbuf;
break;
}
} else {
if (rv == ENOENT) { /* EOF encountered */
rv = 0;
}
break;
}
}
fclose(stream);
return rv;
}
#undef GETXXKEY_R_FUNC
#undef GETXXKEY_R_PARSER
#undef GETXXKEY_R_ENTTYPE
#undef GETXXKEY_R_TEST
#undef GETXXKEY_R_KEYTYPE
#undef GETXXKEY_R_PATHNAME
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