snmp_debug.c
资源名称:snmp.src.rar [点击查看]
上传用户:cxs890
上传日期:2021-05-22
资源大小:347k
文件大小:6k
源码类别:
SNMP编程
开发平台:
C/C++
- #include <config.h>
- #include <stdio.h>
- #if HAVE_STDLIB_H
- #include <stdlib.h>
- #endif
- #if HAVE_STRING_H
- #include <string.h>
- #else
- #include <strings.h>
- #endif
- #include <sys/types.h>
- #if HAVE_NETINET_IN_H
- #include <netinet/in.h>
- #endif
- #if HAVE_STDARG_H
- #include <stdarg.h>
- #else
- #include <varargs.h>
- #endif
- #if HAVE_WINSOCK_H
- #include <ip/socket.h>
- #endif
- #if HAVE_DMALLOC_H
- #include <dmalloc.h>
- #endif
- #include "asn1.h"
- #include "mib.h"
- #include "snmp_api.h"
- #include "read_config.h"
- #include "snmp_debug.h"
- #include "snmp_impl.h"
- #include "snmp_logging.h"
- static int dodebug = SNMP_ALWAYS_DEBUG;
- static int debug_num_tokens=0;
- static char *debug_tokens[MAX_DEBUG_TOKENS];
- static int debug_print_everything=0;
- /* indent debugging: provide a space padded section to return an indent for */
- static int debugindent=0;
- #define INDENTMAX 80
- static char debugindentchars[] = " ";
- char *
- debug_indent(void) {
- return debugindentchars;
- }
- void
- debug_indent_add(int amount) {
- if (debugindent+amount >= 0 && debugindent+amount < 80) {
- debugindentchars[debugindent] = ' ';
- debugindent += amount;
- debugindentchars[debugindent] = ' ';
- }
- }
- void
- #if HAVE_STDARG_H
- DEBUGP(const char *first, ...)
- #else
- DEBUGP(va_alist)
- va_dcl
- #endif
- {
- va_list args;
- #if HAVE_STDARG_H
- va_start(args, first);
- #else
- const char *first;
- va_start(args);
- first = va_arg(args, const char *);
- #endif
- if (dodebug && (debug_print_everything || debug_num_tokens == 0)) {
- fprintf(stderr, "%s: ", DEBUG_ALWAYS_TOKEN);
- vfprintf(stderr, first, args);
- }
- va_end(args);
- }
- void
- DEBUGPOID(oid *theoid,
- size_t len)
- {
- char c_oid[SPRINT_MAX_LEN];
- sprint_objid(c_oid,theoid,len);
- DEBUGP(c_oid);
- }
- void debug_config_register_tokens(const char *configtoken, char *tokens) {
- debug_register_tokens(tokens);
- }
- void debug_config_turn_on_debugging(const char *configtoken, char *line) {
- snmp_set_do_debugging(atoi(line));
- }
- void
- snmp_debug_init(void) {
- debugindentchars[0] = ' '; /* zero out the debugging indent array. */
- register_premib_handler("snmp","doDebugging",
- debug_config_turn_on_debugging, NULL,
- "(1|0)");
- register_premib_handler("snmp","debugTokens",
- debug_config_register_tokens, NULL,
- "token[,token...]");
- }
- void debug_register_tokens(char *tokens) {
- char *newp, *cp;
- if (tokens == 0 || *tokens == 0)
- return;
- newp = strdup(tokens); /* strtok messes it up */
- cp = strtok(newp, DEBUG_TOKEN_DELIMITER);
- while(cp) {
- if (strlen(cp) < MAX_DEBUG_TOKEN_LEN) {
- if (strcasecmp(cp, DEBUG_ALWAYS_TOKEN) == 0)
- debug_print_everything = 1;
- else if (debug_num_tokens < MAX_DEBUG_TOKENS)
- debug_tokens[debug_num_tokens++] = strdup(cp);
- }
- cp = strtok(NULL, DEBUG_TOKEN_DELIMITER);
- }
- free(newp);
- }
- /*
- debug_is_token_registered(char *TOKEN):
- returns SNMPERR_SUCCESS
- or SNMPERR_GENERR
- if TOKEN has been registered and debugging support is turned on.
- */
- int
- debug_is_token_registered(const char *token) {
- int i;
- /* debugging flag is on or off */
- if (!dodebug)
- return SNMPERR_GENERR;
- if (debug_num_tokens == 0 || debug_print_everything) {
- /* no tokens specified, print everything */
- return SNMPERR_SUCCESS;
- } else {
- for(i=0; i < debug_num_tokens; i++) {
- if (strncmp(debug_tokens[i], token, strlen(debug_tokens[i])) == 0) {
- return SNMPERR_SUCCESS;
- }
- }
- }
- return SNMPERR_GENERR;
- }
- void
- #if HAVE_STDARG_H
- debugmsg(const char *token, const char *format, ...)
- #else
- debugmsg(va_alist)
- va_dcl
- #endif
- {
- va_list debugargs;
- #if HAVE_STDARG_H
- va_start(debugargs,format);
- #else
- const char *format;
- const char *token;
- va_start(debugargs);
- token = va_arg(debugargs, const char *);
- format = va_arg(debugargs, const char *); /* ??? */
- #endif
- if (debug_is_token_registered(token) == SNMPERR_SUCCESS) {
- snmp_vlog(LOG_DEBUG, format, debugargs);
- }
- va_end(debugargs);
- }
- void
- debugmsg_oid(const char *token, oid *theoid, size_t len) {
- char c_oid[SPRINT_MAX_LEN];
- sprint_objid(c_oid, theoid, len);
- debugmsg(token, c_oid);
- }
- void
- debugmsg_hex(const char *token, u_char *thedata, size_t len) {
- char buf[SPRINT_MAX_LEN];
- sprint_hexstring(buf, thedata, len);
- debugmsg(token, buf);
- }
- void
- debugmsg_hextli(const char *token, u_char *thedata, size_t len) {
- char buf[SPRINT_MAX_LEN];
- int incr;
- /*XX tracing lines removed from this function DEBUGTRACE; */
- DEBUGIF(token) {
- for(incr = 16; len > 0; len -= incr, thedata += incr) {
- if ((int)len < incr) incr = len;
- /*XXnext two lines were DEBUGPRINTINDENT(token);*/
- debugmsgtoken(token, "%s", debug_indent());
- debugmsg(token, "%s", debug_indent());
- sprint_hexstring(buf, thedata, incr);
- debugmsg(token, buf);
- }
- }
- }
- void
- #if HAVE_STDARG_H
- debugmsgtoken(const char *token, const char *format, ...)
- #else
- debugmsgtoken(va_alist)
- va_dcl
- #endif
- {
- va_list debugargs;
- #if HAVE_STDARG_H
- va_start(debugargs,format);
- #else
- const char *token;
- va_start(debugargs);
- token = va_arg(debugargs, const char *);
- #endif
- debugmsg(token, "%s: ", token);
- va_end(debugargs);
- }
- /* for speed, these shouldn't be in default_storage space */
- void
- snmp_set_do_debugging(int val)
- {
- dodebug = val;
- }
- int
- snmp_get_do_debugging (void)
- {
- return dodebug;
- }