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