1 /* 2 * Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set 9 * forth in the LICENSE file which can be found at the top level of 10 * the sendmail distribution. 11 * 12 */ 13 14 #pragma ident "%Z%%M% %I% %E% SMI" 15 16 #include <sendmail.h> 17 18 SM_RCSID("@(#)$Id: stats.c,v 8.56 2002/06/27 22:47:37 gshapiro Exp $") 19 20 #include <sendmail/mailstats.h> 21 22 static struct statistics Stat; 23 24 static bool GotStats = false; /* set when we have stats to merge */ 25 26 /* See http://physics.nist.gov/cuu/Units/binary.html */ 27 #define ONE_K 1000 /* one thousand (twenty-four?) */ 28 #define KBYTES(x) (((x) + (ONE_K - 1)) / ONE_K) 29 /* 30 ** MARKSTATS -- mark statistics 31 ** 32 ** Parameters: 33 ** e -- the envelope. 34 ** to -- to address. 35 ** type -- type of stats this represents. 36 ** 37 ** Returns: 38 ** none. 39 ** 40 ** Side Effects: 41 ** changes static Stat structure 42 */ 43 44 void 45 markstats(e, to, type) 46 register ENVELOPE *e; 47 register ADDRESS *to; 48 int type; 49 { 50 switch (type) 51 { 52 case STATS_QUARANTINE: 53 if (e->e_from.q_mailer != NULL) 54 Stat.stat_nq[e->e_from.q_mailer->m_mno]++; 55 break; 56 57 case STATS_REJECT: 58 if (e->e_from.q_mailer != NULL) 59 { 60 if (bitset(EF_DISCARD, e->e_flags)) 61 Stat.stat_nd[e->e_from.q_mailer->m_mno]++; 62 else 63 Stat.stat_nr[e->e_from.q_mailer->m_mno]++; 64 } 65 Stat.stat_cr++; 66 break; 67 68 case STATS_CONNECT: 69 if (to == NULL) 70 Stat.stat_cf++; 71 else 72 Stat.stat_ct++; 73 break; 74 75 case STATS_NORMAL: 76 if (to == NULL) 77 { 78 if (e->e_from.q_mailer != NULL) 79 { 80 Stat.stat_nf[e->e_from.q_mailer->m_mno]++; 81 Stat.stat_bf[e->e_from.q_mailer->m_mno] += 82 KBYTES(e->e_msgsize); 83 } 84 } 85 else 86 { 87 Stat.stat_nt[to->q_mailer->m_mno]++; 88 Stat.stat_bt[to->q_mailer->m_mno] += KBYTES(e->e_msgsize); 89 } 90 break; 91 92 default: 93 /* Silently ignore bogus call */ 94 return; 95 } 96 97 98 GotStats = true; 99 } 100 /* 101 ** CLEARSTATS -- clear statistics structure 102 ** 103 ** Parameters: 104 ** none. 105 ** 106 ** Returns: 107 ** none. 108 ** 109 ** Side Effects: 110 ** clears the Stat structure. 111 */ 112 113 void 114 clearstats() 115 { 116 /* clear the structure to avoid future disappointment */ 117 memset(&Stat, '\0', sizeof Stat); 118 GotStats = false; 119 } 120 /* 121 ** POSTSTATS -- post statistics in the statistics file 122 ** 123 ** Parameters: 124 ** sfile -- the name of the statistics file. 125 ** 126 ** Returns: 127 ** none. 128 ** 129 ** Side Effects: 130 ** merges the Stat structure with the sfile file. 131 */ 132 133 void 134 poststats(sfile) 135 char *sfile; 136 { 137 int fd; 138 static bool entered = false; 139 long sff = SFF_REGONLY|SFF_OPENASROOT; 140 struct statistics stats; 141 extern off_t lseek(); 142 143 if (sfile == NULL || *sfile == '\0' || !GotStats || entered) 144 return; 145 entered = true; 146 147 (void) time(&Stat.stat_itime); 148 Stat.stat_size = sizeof Stat; 149 Stat.stat_magic = STAT_MAGIC; 150 Stat.stat_version = STAT_VERSION; 151 152 if (!bitnset(DBS_WRITESTATSTOSYMLINK, DontBlameSendmail)) 153 sff |= SFF_NOSLINK; 154 if (!bitnset(DBS_WRITESTATSTOHARDLINK, DontBlameSendmail)) 155 sff |= SFF_NOHLINK; 156 157 fd = safeopen(sfile, O_RDWR, 0600, sff); 158 if (fd < 0) 159 { 160 if (LogLevel > 12) 161 sm_syslog(LOG_INFO, NOQID, "poststats: %s: %s", 162 sfile, sm_errstring(errno)); 163 errno = 0; 164 entered = false; 165 return; 166 } 167 if (read(fd, (char *) &stats, sizeof stats) == sizeof stats && 168 stats.stat_size == sizeof stats && 169 stats.stat_magic == Stat.stat_magic && 170 stats.stat_version == Stat.stat_version) 171 { 172 /* merge current statistics into statfile */ 173 register int i; 174 175 for (i = 0; i < MAXMAILERS; i++) 176 { 177 stats.stat_nf[i] += Stat.stat_nf[i]; 178 stats.stat_bf[i] += Stat.stat_bf[i]; 179 stats.stat_nt[i] += Stat.stat_nt[i]; 180 stats.stat_bt[i] += Stat.stat_bt[i]; 181 stats.stat_nr[i] += Stat.stat_nr[i]; 182 stats.stat_nd[i] += Stat.stat_nd[i]; 183 stats.stat_nq[i] += Stat.stat_nq[i]; 184 } 185 stats.stat_cr += Stat.stat_cr; 186 stats.stat_ct += Stat.stat_ct; 187 stats.stat_cf += Stat.stat_cf; 188 } 189 else 190 memmove((char *) &stats, (char *) &Stat, sizeof stats); 191 192 /* write out results */ 193 (void) lseek(fd, (off_t) 0, 0); 194 (void) write(fd, (char *) &stats, sizeof stats); 195 (void) close(fd); 196 197 /* clear the structure to avoid future disappointment */ 198 clearstats(); 199 entered = false; 200 } 201