| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /* Copyright (C) 2003 Manuel Novoa III
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| 3 | *
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| 4 | * Licensed under GPL v2, or later. See file LICENSE in this tarball.
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| 5 | */
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| 6 |
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| 7 | /* Nov 6, 2003 Initial version.
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| 8 | *
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| 9 | * NOTE: This implementation is quite strict about requiring all
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| 10 | * field seperators. It also does not allow leading whitespace
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| 11 | * except when processing the numeric fields. glibc is more
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| 12 | * lenient. See the various glibc difference comments below.
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| 13 | *
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| 14 | * TODO:
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| 15 | * Move to dynamic allocation of (currently statically allocated)
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| 16 | * buffers; especially for the group-related functions since
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| 17 | * large group member lists will cause error returns.
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| 18 | *
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| 19 | */
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| 20 |
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| 21 | #ifndef GETXXKEY_R_FUNC
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| 22 | #error GETXXKEY_R_FUNC is not defined!
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| 23 | #endif
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| 24 |
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| 25 | int GETXXKEY_R_FUNC(GETXXKEY_R_KEYTYPE key,
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| 26 | GETXXKEY_R_ENTTYPE *__restrict resultbuf,
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| 27 | char *__restrict buffer, size_t buflen,
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| 28 | GETXXKEY_R_ENTTYPE **__restrict result)
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| 29 | {
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| 30 | FILE *stream;
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| 31 | int rv;
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| 32 |
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| 33 | *result = NULL;
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| 34 |
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| 35 | stream = fopen(GETXXKEY_R_PATHNAME, "r");
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| 36 | if (!stream)
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| 37 | return errno;
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| 38 | while (1) {
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| 39 | rv = bb__pgsreader(GETXXKEY_R_PARSER, resultbuf, buffer, buflen, stream);
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| 40 | if (!rv) {
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| 41 | if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
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| 42 | *result = resultbuf;
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| 43 | break;
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| 44 | }
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| 45 | } else {
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| 46 | if (rv == ENOENT) { /* end-of-file encountered. */
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| 47 | rv = 0;
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| 48 | }
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| 49 | break;
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| 50 | }
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| 51 | }
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| 52 | fclose(stream);
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| 53 |
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| 54 | return rv;
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| 55 | }
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| 56 |
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| 57 | #undef GETXXKEY_R_FUNC
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| 58 | #undef GETXXKEY_R_PARSER
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| 59 | #undef GETXXKEY_R_ENTTYPE
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| 60 | #undef GETXXKEY_R_TEST
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| 61 | #undef GETXXKEY_R_KEYTYPE
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| 62 | #undef GETXXKEY_R_PATHNAME
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