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-rw-r--r--stream/freesdp/common.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/stream/freesdp/common.c b/stream/freesdp/common.c
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+++ b/stream/freesdp/common.c
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+/*
+ This file is part of FreeSDP
+ Copyright (C) 2001,2002,2003 Federico Montesino Pouzols <fedemp@suidzer0.org>
+
+ FreeSDP 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+/**
+ * @file common.c
+ *
+ * @short Implementation of routines common to parse and formatting
+ * modules .
+ *
+ * This file implements the routines that operate over data structures
+ * that are used in both the parse and formatting modules.
+ **/
+
+#include "priv.h"
+#include "common.h"
+
+static void
+safe_free (void *ptr)
+{
+ if (ptr)
+ free (ptr);
+}
+
+fsdp_description_t *
+fsdp_description_new (void)
+{
+ fsdp_description_t *result = malloc (sizeof (fsdp_description_t));
+
+ result->version = 0;
+ result->o_username = result->o_session_id =
+ result->o_announcement_version = NULL;
+ result->o_network_type = FSDP_NETWORK_TYPE_UNDEFINED;
+ result->o_address_type = FSDP_ADDRESS_TYPE_UNDEFINED;
+ result->o_address = NULL;
+ result->s_name = NULL;
+ result->i_information = NULL;
+ result->u_uri = NULL;
+ result->emails = NULL;
+ result->emails_count = 0;
+ result->phones = NULL;
+ result->phones_count = 0;
+ /* At first, there is no session-level definition for these
+ parameters */
+ result->c_network_type = FSDP_NETWORK_TYPE_UNDEFINED;
+ result->c_address_type = FSDP_ADDRESS_TYPE_UNDEFINED;
+ result->c_address.address = NULL;
+ /* there is no session-level definition for these parameters */
+ result->bw_modifiers = NULL;
+ result->bw_modifiers_count = 0;
+ result->time_periods = NULL;
+ result->time_periods_count = 0;
+ result->timezone_adj = NULL;
+ result->k_encryption_method = FSDP_ENCRYPTION_METHOD_UNDEFINED;
+ result->k_encryption_content = NULL;
+ /* Default/undefined values for attributes */
+ result->a_category = result->a_keywords = result->a_tool = NULL;
+ result->a_type = FSDP_SESSION_TYPE_UNDEFINED;
+ result->a_sendrecv_mode = FSDP_SENDRECV_UNDEFINED;
+ result->a_charset = NULL;
+ result->a_sdplangs = result->a_langs = NULL;
+ result->a_controls = NULL;
+ result->a_range = NULL;
+ result->a_rtpmaps = NULL;
+ result->a_rtpmaps_count = 0;
+ result->a_sdplangs_count = 0;
+ result->a_langs_count = 0;
+ result->a_controls_count = 0;
+ result->unidentified_attributes = NULL;
+ result->unidentified_attributes_count = 0;
+ result->media_announcements = NULL;
+ result->media_announcements_count = 0;
+
+ return result;
+}
+
+void
+fsdp_description_delete (fsdp_description_t * dsc)
+{
+ fsdp_description_recycle (dsc);
+ safe_free (dsc);
+}
+
+void
+fsdp_description_recycle (fsdp_description_t * dsc)
+{
+ /* Recursively free all strings and arrays */
+ unsigned int i, j;
+
+ if (!dsc)
+ return;
+
+ safe_free (dsc->o_username);
+ safe_free (dsc->o_session_id);
+ safe_free (dsc->o_announcement_version);
+ safe_free (dsc->o_address);
+ safe_free (dsc->s_name);
+ safe_free (dsc->i_information);
+ safe_free (dsc->u_uri);
+
+ for (i = 0; i < dsc->emails_count; i++)
+ safe_free ((char *) dsc->emails[i]);
+ safe_free (dsc->emails);
+
+ for (i = 0; i < dsc->phones_count; i++)
+ safe_free ((char *) dsc->phones[i]);
+ safe_free (dsc->phones);
+
+ safe_free (dsc->c_address.address);
+
+ for (i = 0; i < dsc->bw_modifiers_count; i++)
+ safe_free (dsc->bw_modifiers[i].b_unknown_bw_modt);
+ safe_free (dsc->bw_modifiers);
+
+ for (i = 0; i < dsc->time_periods_count; i++)
+ {
+ for (j = 0; j < dsc->time_periods[i]->repeats_count; j++)
+ {
+ safe_free (dsc->time_periods[i]->repeats[j]->offsets);
+ safe_free (dsc->time_periods[i]->repeats[j]);
+ }
+ safe_free (dsc->time_periods[i]->repeats);
+ safe_free (dsc->time_periods[i]);
+ }
+ safe_free (dsc->time_periods);
+
+ safe_free (dsc->timezone_adj);
+ safe_free (dsc->a_category);
+ safe_free (dsc->a_keywords);
+ safe_free (dsc->a_tool);
+
+ for (i = 0; i < dsc->a_rtpmaps_count; i++)
+ safe_free (dsc->a_rtpmaps[i]);
+ safe_free (dsc->a_rtpmaps);
+
+ safe_free (dsc->a_charset);
+
+ for (i = 0; i < dsc->a_sdplangs_count; i++)
+ safe_free (dsc->a_sdplangs[i]);
+ safe_free (dsc->a_sdplangs);
+
+ for (i = 0; i < dsc->a_langs_count; i++)
+ safe_free (dsc->a_langs[i]);
+ safe_free (dsc->a_langs);
+
+ for (i = 0; i < dsc->a_controls_count; i++)
+ safe_free (dsc->a_controls[i]);
+ safe_free (dsc->a_controls);
+
+ safe_free (dsc->a_range);
+
+ for (i = 0; i < dsc->media_announcements_count; i++)
+ {
+ for (j = 0; j < dsc->media_announcements[i]->formats_count; j++)
+ safe_free (dsc->media_announcements[i]->formats[j]);
+ safe_free (dsc->media_announcements[i]->formats);
+ safe_free (dsc->media_announcements[i]->i_title);
+
+ for (j = 0; j < dsc->media_announcements[i]->bw_modifiers_count; j++)
+ {
+ if (FSDP_BW_MOD_TYPE_UNKNOWN ==
+ dsc->media_announcements[i]->bw_modifiers[j].b_mod_type)
+ safe_free (dsc->media_announcements[i]->bw_modifiers[j].
+ b_unknown_bw_modt);
+ }
+ safe_free (dsc->media_announcements[i]->bw_modifiers);
+
+ safe_free (dsc->media_announcements[i]->k_encryption_content);
+
+ for (j = 0; j < dsc->media_announcements[i]->a_rtpmaps_count; j++)
+ {
+ safe_free (dsc->media_announcements[i]->a_rtpmaps[j]->pt);
+ safe_free (dsc->media_announcements[i]->a_rtpmaps[j]->
+ encoding_name);
+ safe_free (dsc->media_announcements[i]->a_rtpmaps[j]->parameters);
+ safe_free (dsc->media_announcements[i]->a_rtpmaps[j]);
+ }
+ safe_free (dsc->media_announcements[i]->a_rtpmaps);
+
+ for (j = 0; j < dsc->media_announcements[i]->a_sdplangs_count; j++)
+ safe_free (dsc->media_announcements[i]->a_sdplangs[j]);
+ safe_free (dsc->media_announcements[i]->a_sdplangs);
+
+ for (j = 0; j < dsc->media_announcements[i]->a_langs_count; j++)
+ safe_free (dsc->media_announcements[i]->a_langs[j]);
+ safe_free (dsc->media_announcements[i]->a_langs);
+
+ for (j = 0; j < dsc->media_announcements[i]->a_controls_count; j++)
+ safe_free (dsc->media_announcements[i]->a_controls[j]);
+ safe_free (dsc->media_announcements[i]->a_controls);
+
+ for (j = 0; j < dsc->media_announcements[i]->a_fmtps_count; j++)
+ safe_free (dsc->media_announcements[i]->a_fmtps[j]);
+ safe_free (dsc->media_announcements[i]->a_fmtps);
+
+ for (j = 0;
+ j < dsc->media_announcements[i]->unidentified_attributes_count; j++)
+ safe_free (dsc->media_announcements[i]->unidentified_attributes[j]);
+ safe_free (dsc->media_announcements[i]->unidentified_attributes);
+ safe_free (dsc->media_announcements[i]);
+ }
+ safe_free (dsc->media_announcements);
+
+ /* This prevents the user to make the library crash when incorrectly
+ using recycled but not rebuilt descriptions */
+ dsc->emails_count = 0;
+ dsc->phones_count = 0;
+ dsc->bw_modifiers_count = 0;
+ dsc->time_periods_count = 0;
+ dsc->media_announcements_count = 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 19:02:27 +0000