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Diffstat (limited to 'payloads/bayou/util/pbuilder/config.c')
-rw-r--r--payloads/bayou/util/pbuilder/config.c265
1 files changed, 265 insertions, 0 deletions
diff --git a/payloads/bayou/util/pbuilder/config.c b/payloads/bayou/util/pbuilder/config.c
new file mode 100644
index 0000000000..7b517335e3
--- /dev/null
+++ b/payloads/bayou/util/pbuilder/config.c
@@ -0,0 +1,265 @@
+/*
+ * This file is part of the bayou project.
+ *
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <string.h>
+#include <expat.h>
+#include <ctype.h>
+#include "pbuilder.h"
+
+#define STATE_NONE 0x00
+#define STATE_BAYOUCONFIG 0x01
+#define STATE_GLOBAL 0x02
+#define STATE_GLOBAL_TIMEOUT 0x03
+#define STATE_PAYLOADS 0x04
+#define STATE_PAYLOAD 0x05
+#define STATE_PAYLOAD_TITLE 0x06
+#define STATE_PAYLOAD_FILE 0x07
+#define STATE_PAYLOAD_LARNAME 0x08
+#define STATE_PAYLOAD_CHAIN 0x09
+#define STATE_PAYLOAD_CHAIN_FILE 0x0A
+#define STATE_PAYLOAD_CHAIN_LARNAME 0x0B
+
+static struct userdata {
+ struct config *config;
+ struct pentry *payload;
+ struct pentry *chain;
+ int state;
+} userdata;
+
+static char buffer[8192];
+
+static struct {
+ char *element;
+ int pstate;
+ int state;
+} states[] = {
+ {"BayouConfig", STATE_NONE, STATE_BAYOUCONFIG},
+ {"global", STATE_BAYOUCONFIG, STATE_GLOBAL},
+ {"timeout", STATE_GLOBAL, STATE_GLOBAL_TIMEOUT},
+ {"payloads", STATE_BAYOUCONFIG, STATE_PAYLOADS},
+ {"payload", STATE_PAYLOADS, STATE_PAYLOAD},
+ {"title", STATE_PAYLOAD, STATE_PAYLOAD_TITLE},
+ {"lar", STATE_PAYLOAD, STATE_PAYLOAD_LARNAME},
+ {"file", STATE_PAYLOAD, STATE_PAYLOAD_FILE},
+ {"chain", STATE_PAYLOAD, STATE_PAYLOAD_CHAIN},
+ {"file", STATE_PAYLOAD_CHAIN, STATE_PAYLOAD_CHAIN_FILE},
+ {"lar", STATE_PAYLOAD_CHAIN, STATE_PAYLOAD_CHAIN_LARNAME},
+ {NULL},
+};
+
+static struct pentry *newPayload(struct config *config)
+{
+ struct pentry **tmp, *ret;
+
+ tmp = realloc(config->entries,
+ (config->n_entries + 1) * sizeof(struct pentry *));
+
+ if (tmp == NULL)
+ return NULL;
+
+ config->entries = tmp;
+
+ ret = config->entries[config->n_entries] = calloc(sizeof(*ret), 1);
+
+ if (ret == NULL)
+ return NULL;
+
+ /* Yes, I want this to be ++config->n_entries (the index is 1 based). */
+ ret->index = ++config->n_entries;
+
+ return ret;
+}
+
+static void parseFlags(struct pentry *entry, const char *flags)
+{
+ char *p = (char *)flags;
+ char *n;
+
+ while (*p) {
+ n = strchr(p, ',');
+
+ if (n)
+ *(n++) = 0;
+
+ if (!strcmp(p, "default"))
+ entry->flags |= BPT_FLAG_DEFAULT;
+ else if (!strcmp(p, "nolist"))
+ entry->flags |= BPT_FLAG_NOSHOW;
+ else
+ warn("W: Unknown payload flag %s\n", p);
+
+ if (!n)
+ break;
+
+ for (p = n; *p && isspace(*p); p++) ;
+ }
+}
+
+static struct pentry *addPayload(struct config *config, const char **attr)
+{
+ struct pentry *ret = newPayload(config);
+ int i = 0;
+
+ if (ret == NULL)
+ die("E: Could not allocate memory for a new payload\n");
+
+ while (attr[i] != NULL) {
+ if (!strcmp(attr[i], "type")) {
+ if (!strcmp(attr[i + 1], "chain"))
+ ret->type = BPT_TYPE_CHAIN;
+ else if (!strcmp(attr[i + 1], "chooser"))
+ ret->type = BPT_TYPE_CHOOSER;
+ else
+ die("E: Invalid payload type %s\n",
+ attr[i + 1]);
+ } else if (!strcmp(attr[i], "flags"))
+ parseFlags(ret, attr[i + 1]);
+
+ i += 2;
+ }
+
+ return ret;
+}
+
+static struct pentry *addChain(struct config *config, struct pentry *parent)
+{
+ struct pentry *ret = newPayload(config);
+
+ if (ret == NULL)
+ die("E: Could not allocate memory for a new payload\n");
+
+ ret->parent = parent->index;
+ ret->type = BPT_TYPE_SUBCHAIN;
+
+ return ret;
+}
+
+static void start(void *data, const char *el, const char **attr)
+{
+ int i;
+ struct userdata *d = (struct userdata *)data;
+
+ for (i = 0; states[i].element != NULL; i++) {
+ if (d->state != states[i].pstate)
+ continue;
+
+ if (!strcmp(el, states[i].element)) {
+ d->state = states[i].state;
+ break;
+ }
+ }
+
+ if (states[i].element == NULL)
+ die("E: Unknown element %s\n", el);
+
+ if (d->state == STATE_PAYLOAD)
+ d->payload = addPayload(d->config, attr);
+
+ if (d->state == STATE_PAYLOAD_CHAIN)
+ d->chain = addChain(d->config, d->payload);
+}
+
+static void data(void *data, const char *val, int len)
+{
+ struct userdata *d = (struct userdata *)data;
+ int l;
+
+ switch (d->state) {
+ case STATE_GLOBAL_TIMEOUT:
+ d->config->timeout = atoi(val);
+ break;
+ case STATE_PAYLOAD_TITLE:
+ l = sizeof(d->payload->title) - 1 > len ?
+ len : sizeof(d->payload->title) - 1;
+
+ strncpy((char *)d->payload->title, (char *)val, l);
+ d->payload->title[l] = '\0';
+ break;
+ case STATE_PAYLOAD_FILE:
+ d->payload->file = strndup(val, len);
+ break;
+ case STATE_PAYLOAD_LARNAME:
+ d->payload->larname = strndup(val, len);
+ break;
+ case STATE_PAYLOAD_CHAIN_FILE:
+ d->chain->file = strndup(val, len);
+ break;
+ case STATE_PAYLOAD_CHAIN_LARNAME:
+ d->chain->larname = strndup(val, len);
+ break;
+ default:
+ break;
+ }
+}
+
+static void end(void *data, const char *el)
+{
+ struct userdata *d = (struct userdata *)data;
+ int i;
+
+ if (d->state == STATE_PAYLOAD_CHAIN)
+ d->chain = NULL;
+
+ if (d->state == STATE_PAYLOAD)
+ d->payload = NULL;
+
+ for (i = 0; states[i].element != NULL; i++) {
+ if (d->state != states[i].state)
+ continue;
+
+ if (!strcmp(el, states[i].element)) {
+ d->state = states[i].pstate;
+ break;
+ }
+ }
+
+ if (states[i].element == NULL)
+ die("E: Unable to find the reverse state for %s\n", el);
+}
+
+void parseconfig(FILE *stream, struct config *config)
+{
+ XML_Parser p = XML_ParserCreate(NULL);
+ int eof = 0;
+
+ if (p == NULL)
+ die("E: Could not create the parser\n");
+
+ XML_SetElementHandler(p, start, end);
+ XML_SetCharacterDataHandler(p, data);
+
+ userdata.config = config;
+
+ XML_SetUserData(p, &userdata);
+
+ while (!eof) {
+ int len = fread(buffer, 1, 8192, stream);
+
+ eof = feof(stream);
+
+ if (ferror(stream))
+ die("E: Error reading the stream\n");
+
+ if (!XML_Parse(p, buffer, len, eof))
+ die("E: Error parsing the XML data\n");
+ }
+}
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