| /* vi: set sw=4 ts=4: */ |
| /* Copyright (C) 2003 Manuel Novoa III |
| * |
| * Licensed under GPL v2, or later. See file LICENSE in this tarball. |
| */ |
| |
| /* 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(DO_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(DO_GETXXKEY_R_PATHNAME, "r"); |
| if (!stream) |
| return errno; |
| while (1) { |
| rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf, buffer, buflen, stream); |
| if (!rv) { |
| if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */ |
| *result = resultbuf; |
| break; |
| } |
| } else { |
| if (rv == ENOENT) { /* end-of-file 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 DO_GETXXKEY_R_KEYTYPE |
| #undef DO_GETXXKEY_R_PATHNAME |