2  * Copyright (c) 2001-2003
61  * line: oid '=' value
73  * value: EMPTY | STRING | NUM
77  * Input context for macros and includes
83 struct input {  struct
98 	LIST_ENTRY(input) link;  argument
100 static LIST_HEAD(, input) inputs;
120 	struct snmp_value value;  member
133 	char	*value;  member
161 # define ERRPOP()	((void)(errstk--))
162 # define ERRNEXT()	(longjmp(errjmp[--errstk], 1))
163 # define ERR()		(longjmp(errjmp[--errstk], 1))
177 	const struct input *input;  in report()  local
183 	LIST_FOREACH(input, &inputs, link) {  in report()
184 		switch (input->type) {  in report()
188 			    input->input_filename, input->input_lno);  in report()
193 			    input->input_macro,  in report()
194 			    input->input_ptr - input->input_str);  in report()
202  * Open a file for input
207 	struct input *input;  in input_open_file()  local
220 				col = ptr + strlen(ptr) - 1;  in input_open_file()
225 				    (int)(col - ptr), ptr, fname);  in input_open_file()
236 	if ((input = malloc(sizeof(*input))) == NULL) {  in input_open_file()
238 		return (-1);  in input_open_file()
240 	if ((input->input_filename = malloc(strlen(fname) + 1)) == NULL) {  in input_open_file()
242 		free(input);  in input_open_file()
243 		return (-1);  in input_open_file()
245 	strcpy(input->input_filename, fname);  in input_open_file()
246 	input->input_fp = fp;  in input_open_file()
247 	input->input_lno = 1;  in input_open_file()
248 	input->type = INPUT_FILE;  in input_open_file()
249 	LIST_INSERT_HEAD(&inputs, input, link);  in input_open_file()
254  * Make a macro the next input
259 	struct input *input;  in input_open_macro()  local
261 	if ((input = malloc(sizeof(*input))) == NULL)  in input_open_macro()
263 	input->type = INPUT_STRING;  in input_open_macro()
264 	input->input_macro = m->name;  in input_open_macro()
265 	if ((input->input_str = malloc(m->length)) == NULL) {  in input_open_macro()
266 		free(input);  in input_open_macro()
269 	memcpy(input->input_str, m->value, m->length);  in input_open_macro()
270 	input->input_ptr = input->input_str;  in input_open_macro()
271 	input->input_left = m->length;  in input_open_macro()
272 	LIST_INSERT_HEAD(&inputs, input, link);  in input_open_macro()
276  * Close top input source
281 	struct input *input;  in input_close()  local
283 	if ((input = LIST_FIRST(&inputs)) == NULL)  in input_close()
285 	switch (input->type) {  in input_close()
288 		fclose(input->input_fp);  in input_close()
289 		free(input->input_filename);  in input_close()
293 		free(input->input_str);  in input_close()
296 	LIST_REMOVE(input, link);  in input_close()
297 	free(input);  in input_close()
325  * Return next character from the input without preprocessing.
331 	struct input *input;  in input_getc_raw()  local
334 		c = input_buf[--input_push];  in input_getc_raw()
337 	while ((input = LIST_FIRST(&inputs)) != NULL) {  in input_getc_raw()
338 		switch (input->type) {  in input_getc_raw()
341 			if ((c = getc(input->input_fp)) == EOF) {  in input_getc_raw()
342 				if (ferror(input->input_fp))  in input_getc_raw()
348 				input->input_lno++;  in input_getc_raw()
352 			if (input->input_left-- == 0) {  in input_getc_raw()
356 			c = *input->input_ptr++;  in input_getc_raw()
376  * Get character with and \\n -> processing.
426 		if (strcmp(m->name, name) == 0)  in input_getc()
463 			numval = numval * base + (c - '0');  in input_getnum()
466 				numval = numval * base + (c - 'a' + 10);  in input_getnum()
468 				numval = numval * base + (c - 'A' + 10);  in input_getnum()
582 				strval[strvallen++] = chr[end - esc];  in _gettoken()
606 			if (!isalnum(c) && c != '.' && c != '-')  in _gettoken()
629 			if (!isalnum(c) && c != '_' && c != '-') {  in _gettoken()
689     const struct snmp_value *value)  in handle_assignment()  argument
696 	if (node->type == SNMP_NODE_LEAF) {  in handle_assignment()
698 		if (vindex->len > 1 || (vindex->len == 1 &&  in handle_assignment()
699 		    vindex->subs[0] != 0))  in handle_assignment()
701 		vindex->len = 1;  in handle_assignment()
702 		vindex->subs[0] = 0;  in handle_assignment()
705 		if (node->oid.len + vindex->len > ASN_MAXOIDLEN)  in handle_assignment()
715 	tp->value = *value;  in handle_assignment()
716 	tp->node_name = node->name;  in handle_assignment()
721 	tp->value.var = node->oid;  in handle_assignment()
722 	for (i = 0; i < vindex->len; i++)  in handle_assignment()
723 		tp->value.var.subs[tp->value.var.len++] = vindex->subs[i];  in handle_assignment()
731 	snprintf(nodename, sizeof(nodename), "%s", node->name);  in handle_assignment()
732 	snmp_ctx->scratch = &tp->scratch;  in handle_assignment()
733 	snmp_ctx->var_index = 0;  in handle_assignment()
734 	err = (*node->op)(snmp_ctx, &tp->value, node->oid.len, node->index,  in handle_assignment()
757 			/* loading a module - ignore common stuff */  in parse_section()
760 			/* global configuration - don't ignore */  in parse_section()
764 			/* global configuration - ignore module stuff */  in parse_section()
767 			/* loading module - check if it's our section */  in parse_section()
768 			ignore = (strcmp(strval, mod->section) != 0);  in parse_section()
795 	sain = (struct sockaddr_in *)(void *)res->ai_addr;  in gethost()
796 	sain->sin_addr.s_addr = ntohl(sain->sin_addr.s_addr);  in gethost()
797 	ip[0] = sain->sin_addr.s_addr >> 24;  in gethost()
798 	ip[1] = sain->sin_addr.s_addr >> 16;  in gethost()
799 	ip[2] = sain->sin_addr.s_addr >>  8;  in gethost()
800 	ip[3] = sain->sin_addr.s_addr >>  0;  in gethost()
817 		if (strcmp(varname, node->name) == 0)  in parse_oid()
822 	oid->len = 0;  in parse_oid()
828 			if (oid->len == ASN_MAXOIDLEN)  in parse_oid()
831 				oid->subs[oid->len++] = numval;  in parse_oid()
840 				oid->subs[oid->len++] = str_oid.len;  in parse_oid()
845 			if (strvallen + oid->len + 1 > ASN_MAXOIDLEN)  in parse_oid()
847 			oid->subs[oid->len++] = strvallen;  in parse_oid()
849 				oid->subs[oid->len++] = strval[i];  in parse_oid()
854 			if (oid->len + 4 > ASN_MAXOIDLEN)  in parse_oid()
857 				oid->subs[oid->len++] = ip[i];  in parse_oid()
867  * Parse the value for an assignment.
870 parse_syntax_null(struct snmp_value *value __unused)  in parse_syntax_null()
877 parse_syntax_integer(struct snmp_value *value)  in parse_syntax_integer()  argument
884 	value->v.integer = numval;  in parse_syntax_integer()
889 parse_syntax_counter64(struct snmp_value *value)  in parse_syntax_counter64()  argument
894 	value->v.counter64 = numval;  in parse_syntax_counter64()
899 parse_syntax_octetstring(struct snmp_value *value)  in parse_syntax_octetstring()  argument
905 		value->v.octetstring.len = strvallen;  in parse_syntax_octetstring()
906 		value->v.octetstring.octets = malloc(strvallen);  in parse_syntax_octetstring()
907 		(void)memcpy(value->v.octetstring.octets, strval, strvallen);  in parse_syntax_octetstring()
913 	value->v.octetstring.octets = NULL;  in parse_syntax_octetstring()
914 	value->v.octetstring.len = 0;  in parse_syntax_octetstring()
921 		free(value->v.octetstring.octets);  in parse_syntax_octetstring()
930 			report("byte value too large");  in parse_syntax_octetstring()
931 		if (alloc == value->v.octetstring.len) {  in parse_syntax_octetstring()
933 			noct = realloc(value->v.octetstring.octets, alloc);  in parse_syntax_octetstring()
936 			value->v.octetstring.octets = noct;  in parse_syntax_octetstring()
938 		value->v.octetstring.octets[value->v.octetstring.len++]  in parse_syntax_octetstring()
948 parse_syntax_oid(struct snmp_value *value)  in parse_syntax_oid()  argument
950 	value->v.oid.len = 0;  in parse_syntax_oid()
960 		if (value->v.oid.len == ASN_MAXOIDLEN)  in parse_syntax_oid()
962 		value->v.oid.subs[value->v.oid.len++] = numval;  in parse_syntax_oid()
970 parse_syntax_ipaddress(struct snmp_value *value)  in parse_syntax_ipaddress()  argument
981 			value->v.ipaddress[i++] = numval;  in parse_syntax_ipaddress()
993 			value->v.ipaddress[i] = ip[i];  in parse_syntax_ipaddress()
1001 parse_syntax_uint32(struct snmp_value *value)  in parse_syntax_uint32()  argument
1008 	value->v.uint32 = numval;  in parse_syntax_uint32()
1018 	struct snmp_value value;  in parse_assign()  local
1036 	switch (value.syntax = node->syntax) {  in parse_assign()
1039 		parse_syntax_null(&value);  in parse_assign()
1043 		parse_syntax_integer(&value);  in parse_assign()
1047 		parse_syntax_counter64(&value);  in parse_assign()
1051 		parse_syntax_octetstring(&value);  in parse_assign()
1055 		parse_syntax_oid(&value);  in parse_assign()
1059 		parse_syntax_ipaddress(&value);  in parse_assign()
1065 		parse_syntax_uint32(&value);  in parse_assign()
1075 		snmp_value_free(&value);  in parse_assign()
1079 	handle_assignment(node, &vindex, &value);  in parse_assign()
1086  * We have already seen the := and the input now stands at the character
1087  * after the =. Skip whitespace and then call the input routine directly to
1133 		if (strcmp(m->name, varname) == 0)  in parse_define()
1139 		if ((m->name = malloc(strlen(varname) + 1)) == NULL) {  in parse_define()
1143 		strcpy(m->name, varname);  in parse_define()
1144 		m->perm = 0;  in parse_define()
1147 		m->value = string;  in parse_define()
1148 		m->length = length;  in parse_define()
1151 			free(m->value);  in parse_define()
1152 			m->value = string;  in parse_define()
1153 			m->length = length;  in parse_define()
1174 		if (!m->perm) {  in macro_free_all()
1175 			free(m->name);  in macro_free_all()
1176 			free(m->value);  in macro_free_all()
1204 	if (input_open_file(fname, sysdir) == -1)  in parse_include()
1254 			if (node->name == tp->node_name) {  in do_rollback()
1255 				snmp_ctx->scratch = &tp->scratch;  in do_rollback()
1256 				(void)(*node->op)(snmp_ctx, &tp->value,  in do_rollback()
1257 				    node->oid.len, node->index,  in do_rollback()
1264 		snmp_value_free(&tp->value);  in do_rollback()
1281 			if (node->name == tp->node_name) {  in do_commit()
1282 				snmp_ctx->scratch = &tp->scratch;  in do_commit()
1283 				(void)(*node->op)(snmp_ctx, &tp->value,  in do_commit()
1284 				    node->oid.len, node->index, SNMP_OP_COMMIT);  in do_commit()
1289 		snmp_value_free(&tp->value);  in do_commit()
1312 		return (-1);  in read_config()
1313 	if (input_open_file(fname, 0) == -1) {  in read_config()
1315 		return (-1);  in read_config()
1323 		return (-1);  in read_config()
1331 		return (-1);  in read_config()
1338 		    asn_oid2str_r(&snmp_ctx->dep->obj, objbuf),  in read_config()
1339 		    asn_oid2str_r(&snmp_ctx->dep->idx, idxbuf));  in read_config()
1345 		return (-1);  in read_config()
1362 define_macro(const char *name, const char *value)  in define_macro()  argument
1367 		return (-1);  in define_macro()
1368 	if ((m->name = malloc(strlen(name) + 1)) == NULL) {  in define_macro()
1370 		return (-1);  in define_macro()
1372 	strcpy(m->name, name);  in define_macro()
1373 	if ((m->value = malloc(strlen(value) + 1)) == NULL) {  in define_macro()
1374 		free(m->name);  in define_macro()
1376 		return (-1);  in define_macro()
1378 	strcpy(m->value, value);  in define_macro()
1379 	m->length = strlen(value);  in define_macro()
1380 	m->perm = 1;  in define_macro()