diff options
Diffstat (limited to 'crypto/heimdal/lib/hx509/ks_dir.c')
| -rw-r--r-- | crypto/heimdal/lib/hx509/ks_dir.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/hx509/ks_dir.c b/crypto/heimdal/lib/hx509/ks_dir.c new file mode 100644 index 000000000000..a0bc875e5b8c --- /dev/null +++ b/crypto/heimdal/lib/hx509/ks_dir.c @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "hx_locl.h" +RCSID("$Id: ks_dir.c 19778 2007-01-09 10:52:13Z lha $"); +#include <dirent.h> + +/* + * The DIR keyset module is strange compared to the other modules + * since it does lazy evaluation and really doesn't keep any local + * state except for the directory iteration and cert iteration of + * files. DIR ignores most errors so that the consumer doesn't get + * failes for stray files in directories. + */ + +struct dircursor { + DIR *dir; + hx509_certs certs; + void *iter; +}; + +/* + * + */ + +static int +dir_init(hx509_context context, + hx509_certs certs, void **data, int flags, + const char *residue, hx509_lock lock) +{ + *data = NULL; + + { + struct stat sb; + int ret; + + ret = stat(residue, &sb); + if (ret == -1) { + hx509_set_error_string(context, 0, ENOENT, + "No such file %s", residue); + return ENOENT; + } + + if ((sb.st_mode & S_IFDIR) == 0) { + hx509_set_error_string(context, 0, ENOTDIR, + "%s is not a directory", residue); + return ENOTDIR; + } + } + + *data = strdup(residue); + if (*data == NULL) { + hx509_clear_error_string(context); + return ENOMEM; + } + + return 0; +} + +static int +dir_free(hx509_certs certs, void *data) +{ + free(data); + return 0; +} + + + +static int +dir_iter_start(hx509_context context, + hx509_certs certs, void *data, void **cursor) +{ + struct dircursor *d; + + *cursor = NULL; + + d = calloc(1, sizeof(*d)); + if (d == NULL) { + hx509_clear_error_string(context); + return ENOMEM; + } + + d->dir = opendir(data); + if (d->dir == NULL) { + hx509_clear_error_string(context); + free(d); + return errno; + } + d->certs = NULL; + d->iter = NULL; + + *cursor = d; + return 0; +} + +static int +dir_iter(hx509_context context, + hx509_certs certs, void *data, void *iter, hx509_cert *cert) +{ + struct dircursor *d = iter; + int ret = 0; + + *cert = NULL; + + do { + struct dirent *dir; + char *fn; + + if (d->certs) { + ret = hx509_certs_next_cert(context, d->certs, d->iter, cert); + if (ret) { + hx509_certs_end_seq(context, d->certs, d->iter); + d->iter = NULL; + hx509_certs_free(&d->certs); + return ret; + } + if (*cert) { + ret = 0; + break; + } + hx509_certs_end_seq(context, d->certs, d->iter); + d->iter = NULL; + hx509_certs_free(&d->certs); + } + + dir = readdir(d->dir); + if (dir == NULL) { + ret = 0; + break; + } + if (strcmp(dir->d_name, ".") == 0 || strcmp(dir->d_name, "..") == 0) + continue; + + if (asprintf(&fn, "FILE:%s/%s", (char *)data, dir->d_name) == -1) + return ENOMEM; + + ret = hx509_certs_init(context, fn, 0, NULL, &d->certs); + if (ret == 0) { + + ret = hx509_certs_start_seq(context, d->certs, &d->iter); + if (ret) + hx509_certs_free(&d->certs); + } + /* ignore errors */ + if (ret) { + d->certs = NULL; + ret = 0; + } + + free(fn); + } while(ret == 0); + + return ret; +} + + +static int +dir_iter_end(hx509_context context, + hx509_certs certs, + void *data, + void *cursor) +{ + struct dircursor *d = cursor; + + if (d->certs) { + hx509_certs_end_seq(context, d->certs, d->iter); + d->iter = NULL; + hx509_certs_free(&d->certs); + } + closedir(d->dir); + free(d); + return 0; +} + + +static struct hx509_keyset_ops keyset_dir = { + "DIR", + 0, + dir_init, + NULL, + dir_free, + NULL, + NULL, + dir_iter_start, + dir_iter, + dir_iter_end +}; + +void +_hx509_ks_dir_register(hx509_context context) +{ + _hx509_ks_register(context, &keyset_dir); +} |