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authordimitri staessens <dimitri.staessens@intec.ugent.be>2016-03-30 15:36:19 +0200
committerdimitri staessens <dimitri.staessens@intec.ugent.be>2016-03-30 15:36:19 +0200
commit231f60c51c1346069ab82ab17eb392e039620270 (patch)
treeb4dea779cd0b2de5b6ffd760704700dbb665cdf6 /src/lib/instance_name.c
parentdd20c175f10c04bf5abd0ca764ededaa7a4ac621 (diff)
parenta3f002d6f2d102588f988c99eb16c64a68706dd2 (diff)
downloadouroboros-231f60c51c1346069ab82ab17eb392e039620270.tar.gz
ouroboros-231f60c51c1346069ab82ab17eb392e039620270.zip
Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into be-flow
Diffstat (limited to 'src/lib/instance_name.c')
-rw-r--r--src/lib/instance_name.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/src/lib/instance_name.c b/src/lib/instance_name.c
new file mode 100644
index 00000000..0f666211
--- /dev/null
+++ b/src/lib/instance_name.c
@@ -0,0 +1,268 @@
+/*
+ * RINA naming related utilities
+ *
+ * Sander Vrijders <sander.vrijders@intec.ugent.be>
+ * Francesco Salvestrini <f.salvestrini@nextworks.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define OUROBOROS_PREFIX "instance-name"
+
+#include <ouroboros/logs.h>
+#include <ouroboros/common.h>
+#include <ouroboros/instance_name.h>
+#include <ouroboros/utils.h>
+
+#include <string.h>
+#include <math.h>
+#include <malloc.h>
+#include <stdlib.h>
+
+#define instance_name_is_equal(a, b) (instance_name_cmp(a, b) == 0)
+
+static char * strdup(const char * src)
+{
+ int len = 0;
+ char * dst = NULL;
+
+ if (src == NULL)
+ return NULL;
+
+ len = strlen(src) + 1;
+
+ dst = malloc(len);
+ if (dst == NULL)
+ return NULL;
+
+ memcpy(dst, src, len);
+
+ return dst;
+}
+
+instance_name_t * instance_name_create()
+{
+ instance_name_t * tmp;
+
+ tmp = malloc(sizeof *tmp);
+
+ tmp->name = NULL;
+ tmp->id = 0;
+
+ return tmp;
+}
+
+instance_name_t * instance_name_init_from(instance_name_t * dst,
+ const char * name,
+ uint16_t id)
+{
+ if (dst == NULL)
+ return NULL;
+
+ /* Clean up the destination, leftovers might be there ... */
+ instance_name_fini(dst);
+
+ dst->name = strdup(name);
+ dst->id = id;
+
+ if (dst->name == NULL) {
+ instance_name_fini(dst);
+ return NULL;
+ }
+
+ return dst;
+}
+
+instance_name_t * instance_name_init_with(instance_name_t * dst,
+ char * name,
+ uint16_t id)
+{
+ if (dst == NULL)
+ return NULL;
+
+ /* Clean up the destination, leftovers might be there ... */
+ instance_name_fini(dst);
+
+ dst->name = name;
+ dst->id = id;
+
+ return dst;
+}
+
+void instance_name_fini(instance_name_t * n)
+{
+ if (n == NULL || n->name == NULL)
+ return;
+
+ free(n->name);
+ n->name = NULL;
+}
+
+void instance_name_destroy(instance_name_t * ptr)
+{
+ if (ptr == NULL)
+ return;
+
+ instance_name_fini(ptr);
+
+ free(ptr);
+}
+
+int instance_name_cpy(instance_name_t * dst,
+ const instance_name_t * src)
+{
+ instance_name_t * res;
+
+ if (src == NULL || dst == NULL)
+ return -1;
+
+ res = instance_name_init_from(dst, src->name, src->id);
+ if (res == NULL)
+ return -1;
+
+ return 0;
+}
+
+instance_name_t * instance_name_dup(const instance_name_t * src)
+{
+ instance_name_t * tmp;
+
+ if (src == NULL)
+ return NULL;
+
+ tmp = instance_name_create();
+ if (tmp == NULL)
+ return NULL;
+
+ if (instance_name_cpy(tmp, src)) {
+ instance_name_destroy(tmp);
+ return NULL;
+ }
+
+ return tmp;
+}
+
+bool instance_name_is_valid(const instance_name_t * n)
+{
+ return (n != NULL && n->name != NULL && strlen(n->name));
+}
+
+int instance_name_cmp(const instance_name_t * a,
+ const instance_name_t * b)
+{
+
+ int ret = 0;
+
+ if (a == NULL || b == NULL) {
+ LOG_DBGF("Won't compare NULL.");
+ return -2;
+ }
+
+ if (a == b)
+ return 0;
+
+ ret = strcmp(a->name, b->name);
+
+ if (!ret) {
+ if (a->id == b-> id)
+ return 0;
+ else
+ return a->id < b->id ? -1 : 1;
+ }
+
+ return ret;
+}
+
+
+
+#define DELIMITER "/"
+
+char * instance_name_to_string(const instance_name_t * n)
+{
+ char * tmp;
+ size_t size;
+ const char * none = "";
+ size_t none_len = strlen(none);
+
+ if (n == NULL)
+ return NULL;
+
+ size = 0;
+
+ size += (n->name != NULL ?
+ strlen(n->name) : none_len);
+ size += strlen(DELIMITER);
+
+ size += (n->id == 0 ?
+ 1 : n_digits(n->id));
+ size += strlen(DELIMITER);
+
+ tmp = malloc(size);
+ if (!tmp)
+ return NULL;
+
+ if (sprintf(tmp, "%s%s%d",
+ (n->name != NULL ? n->name : none),
+ DELIMITER, n->id)
+ != size - 1) {
+ free(tmp);
+ return NULL;
+ }
+
+ return tmp;
+}
+
+instance_name_t * string_to_instance_name(const char * s)
+{
+ instance_name_t * name;
+
+ char * tmp1 = NULL;
+ char * tmp_ap = NULL;
+ char * tmp_s_api = NULL;
+ unsigned int tmp_api = 0;
+ char * tmp2;
+
+ if (s == NULL)
+ return NULL;
+
+ tmp1 = strdup(s);
+ if (tmp1 == NULL) {
+ return NULL;
+ }
+
+ tmp_ap = strtok(tmp1, DELIMITER);
+ tmp_s_api = strtok(NULL, DELIMITER);
+ if (tmp_s_api != NULL)
+ tmp_api = (unsigned int) strtol(tmp_s_api, &tmp2, 10);
+
+ name = instance_name_create();
+ if (name == NULL) {
+ if (tmp1 != NULL)
+ free(tmp1);
+ return NULL;
+ }
+
+ if (!instance_name_init_from(name, tmp_ap, tmp_api)) {
+ instance_name_destroy(name);
+ if (tmp1 != NULL)
+ free(tmp1);
+ return NULL;
+ }
+
+ if (tmp1 != NULL)
+ free(tmp1);
+
+ return name;
+}