1: /*
   2:  * Simple but effective hack to test the kernel.o file.
   3:  * It takes on stdin the output from "netstat -f inet -n | grep ESTAB"
   4:  * in either Solaris 2.x (non-standard formats can easily be converted
   5:  * to this)
   6:  *	laddr.lport faddr.fport .....
   7:  * or BSD 4.x (the defacto standard netstat output):
   8:  *	tcp <num> <num>  laddr.lport faddr.fport
   9:  * format.
  10:  *
  11:  * The output must be numeric, as non-numeric output is truncated when
  12:  * hostnames get too long and ambiguous.  And we don't want netstat to
  13:  * first convert numbers to names and then this program to convert
  14:  * names back to numbers.
  15:  *
  16:  * Casper Dik (casper@fwi.uva.nl)
  17:  */
  18: #include <stdio.h>
  19: #include <ctype.h>
  20: #ifdef sequent
  21: #include <strings.h>
  22: #define strrchr rindex
  23: #else
  24: #include <string.h>
  25: #include <stdlib.h>
  26: #endif
  27: #include <sys/time.h>
  28: #include <sys/types.h>
  29: #include <sys/socket.h>
  30: #include <netinet/in.h>
  31: #include <arpa/inet.h>
  32: #include <pwd.h>
  33: 
  34: #include "identd.h"
  35: #include "error.h"
  36: 
  37: 
  38: #ifdef LOG_DAEMON
  39: static int syslog_facility = LOG_DAEMON;
  40: #endif
  41: 
  42: /*
  43:  * To resolve external references that are usually resolved
  44:  * from identd.c
  45:  */
  46: char *path_unix = NULL;
  47: char *path_kmem = NULL;
  48: int lport = 0;
  49: int fport = 0;
  50: 
  51: int debug_flag = 1;
  52: int syslog_flag = 1;
  53: 
  54: 
  55: #ifdef sequent
  56: char *strtok(str, dels)
  57:     char *str;
  58:     char *dels;
  59: {
  60:   static char *bufp;
  61: 
  62: 
  63:   if (str)
  64:     bufp = str;
  65: 
  66:   if (!bufp || !*bufp)
  67:     return (char *) 0;;
  68: 
  69:   while (*bufp && index(dels, *bufp) != (char *) 0)
  70:     ++bufp;
  71: 
  72:   str = bufp;
  73: 
  74:   while (*bufp && index(dels, *bufp) == (char *) 0)
  75:     ++bufp;
  76: 
  77:   if (*bufp)
  78:     *bufp++ = '\0';
  79: 
  80:   return str;
  81: }
  82: #endif
  83: 
  84: int
  85: main()
  86: {
  87:     char buf[500];
  88: 
  89:     /*
  90:     ** Open the connection to the Syslog daemon if requested
  91:     */
  92:     if (syslog_flag)
  93:     {
  94: #ifdef LOG_DAEMON
  95:     openlog("identd_test", LOG_PID, syslog_facility);
  96: #else
  97:     openlog("identd_test", LOG_PID);
  98: #endif
  99:     }
 100: 
 101: 
 102:     if (k_open() < 0) {
 103:     fprintf(stderr,"k_open failed\n");
 104:     exit(1);
 105:     }
 106:     while (fgets(buf,sizeof(buf),stdin)) {
 107:     char *loc, *rem, *tmp;
 108:     unsigned short lport, fport;
 109:     struct in_addr faddr, laddr;
 110:     int uid;
 111: #ifdef ALLOW_FORMAT
 112:     int pid;
 113:     char *cmd, *cmd_and_args;
 114: #endif
 115:     struct passwd *pwd;
 116:     char buf2[sizeof(buf)];
 117: 
 118:     strcpy(buf2,buf);
 119: 
 120:     loc = strtok(buf, " \t");
 121:     if (strcmp(loc,"tcp") == 0) {
 122:         int i;
 123:         for (i = 0; i < 3; i++)
 124:         loc = strtok(NULL, " \t");
 125:     }
 126:     rem = strtok(NULL, " \t");
 127:     if (loc == NULL || rem == NULL) {
 128:         fprintf(stderr,"Malformed line: %s\n", buf2);
 129:         continue;
 130:     }
 131:     /* parse remote, local address */
 132:     tmp = strrchr(loc,'.');
 133:     if (tmp == NULL) {
 134:         fprintf(stderr,"Malformed line: %s\n", buf2);
 135:         continue;
 136:     }
 137:     *tmp++ ='\0';
 138:     laddr.s_addr = inet_addr(loc);
 139:     lport = atoi(tmp);
 140: 
 141:     tmp = strrchr(rem,'.');
 142:     if (tmp == NULL) {
 143:         fprintf(stderr,"Malformed line: %s\n", buf2);
 144:         continue;
 145:     }
 146:     *tmp++ ='\0';
 147:     fport = atoi(tmp);
 148:     faddr.s_addr = inet_addr(rem);
 149: 
 150:     uid = -1;
 151: #ifdef ALLOW_FORMAT
 152:     pid = 0;
 153:     cmd = "unknown";
 154:     cmd_and_args = "unknown";
 155: #endif
 156: 
 157:     if (k_getuid(&faddr, htons(fport), &laddr, htons(lport), &uid
 158: #ifdef ALLOW_FORMAT
 159:         , &pid
 160:         , &cmd
 161:         , &cmd_and_args
 162: #endif
 163:         ) != 0) {
 164:         fprintf(stderr,"*unknown*\t%s\t%d\t\t%s\t%d\n", loc, lport, rem, fport);
 165:         continue;
 166:     }
 167: 
 168:     pwd = getpwuid(uid);
 169:     if (pwd)
 170:         printf("%-8.8s", pwd->pw_name);
 171:     else
 172:         printf("%-8.8d", uid);
 173: #ifdef ALLOW_FORMAT
 174:     printf (" \t%-13s\t%-4d\t%-13s\t%-4d\tPID=%d\tCMD=%s\tCMD+ARG=%s\n", loc, lport, rem, fport, pid, cmd, cmd_and_args);
 175: #else
 176:     printf(" \t%s\t%d\t\t%s\t%d\n", loc, lport, rem, fport);
 177: #endif
 178:     }
 179: 
 180:     return 0;
 181: }

Defined functions

main defined in line 84; never used
strtok defined in line 56; used 3 times

Defined variables

debug_flag defined in line 51; never used
fport defined in line 49; used 6 times
lport defined in line 48; used 6 times
path_kmem defined in line 47; never used
path_unix defined in line 46; never used
syslog_facility defined in line 39; used 1 times
  • in line 95
syslog_flag defined in line 52; used 1 times
  • in line 92

Defined macros

strrchr defined in line 22; used 2 times
Last modified: 1996-05-14
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