1 /* 2 * Copyright (c) 1998-2002 Proofpoint, 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 #include <sendmail.h> 15 16 SM_RCSID("@(#)$Id: stats.c,v 8.58 2013-11-22 20:51:56 ca Exp $") 17 18 #include <sendmail/mailstats.h> 19 20 static struct statistics Stat; 21 22 static bool GotStats = false; /* set when we have stats to merge */ 23 24 /* See http://physics.nist.gov/cuu/Units/binary.html */ 25 #define ONE_K 1000 /* one thousand (twenty-four?) */ 26 #define KBYTES(x) (((x) + (ONE_K - 1)) / ONE_K) 27 /* 28 ** MARKSTATS -- mark statistics 29 ** 30 ** Parameters: 31 ** e -- the envelope. 32 ** to -- to address. 33 ** type -- type of stats this represents. 34 ** 35 ** Returns: 36 ** none. 37 ** 38 ** Side Effects: 39 ** changes static Stat structure 40 */ 41 42 void 43 markstats(e, to, type) 44 register ENVELOPE *e; 45 register ADDRESS *to; 46 int type; 47 { 48 switch (type) 49 { 50 case STATS_QUARANTINE: 51 if (e->e_from.q_mailer != NULL) 52 Stat.stat_nq[e->e_from.q_mailer->m_mno]++; 53 break; 54 55 case STATS_REJECT: 56 if (e->e_from.q_mailer != NULL) 57 { 58 if (bitset(EF_DISCARD, e->e_flags)) 59 Stat.stat_nd[e->e_from.q_mailer->m_mno]++; 60 else 61 Stat.stat_nr[e->e_from.q_mailer->m_mno]++; 62 } 63 Stat.stat_cr++; 64 break; 65 66 case STATS_CONNECT: 67 if (to == NULL) 68 Stat.stat_cf++; 69 else 70 Stat.stat_ct++; 71 break; 72 73 case STATS_NORMAL: 74 if (to == NULL) 75 { 76 if (e->e_from.q_mailer != NULL) 77 { 78 Stat.stat_nf[e->e_from.q_mailer->m_mno]++; 79 Stat.stat_bf[e->e_from.q_mailer->m_mno] += 80 KBYTES(e->e_msgsize); 81 } 82 } 83 else 84 { 85 Stat.stat_nt[to->q_mailer->m_mno]++; 86 Stat.stat_bt[to->q_mailer->m_mno] += KBYTES(e->e_msgsize); 87 } 88 break; 89 90 default: 91 /* Silently ignore bogus call */ 92 return; 93 } 94 95 96 GotStats = true; 97 } 98 /* 99 ** CLEARSTATS -- clear statistics structure 100 ** 101 ** Parameters: 102 ** none. 103 ** 104 ** Returns: 105 ** none. 106 ** 107 ** Side Effects: 108 ** clears the Stat structure. 109 */ 110 111 void 112 clearstats() 113 { 114 /* clear the structure to avoid future disappointment */ 115 memset(&Stat, '\0', sizeof(Stat)); 116 GotStats = false; 117 } 118 /* 119 ** POSTSTATS -- post statistics in the statistics file 120 ** 121 ** Parameters: 122 ** sfile -- the name of the statistics file. 123 ** 124 ** Returns: 125 ** none. 126 ** 127 ** Side Effects: 128 ** merges the Stat structure with the sfile file. 129 */ 130 131 void 132 poststats(sfile) 133 char *sfile; 134 { 135 int fd; 136 static bool entered = false; 137 long sff = SFF_REGONLY|SFF_OPENASROOT; 138 struct statistics stats; 139 extern off_t lseek __P((int, off_t, int)); 140 141 if (sfile == NULL || *sfile == '\0' || !GotStats || entered) 142 return; 143 entered = true; 144 145 (void) time(&Stat.stat_itime); 146 Stat.stat_size = sizeof(Stat); 147 Stat.stat_magic = STAT_MAGIC; 148 Stat.stat_version = STAT_VERSION; 149 150 if (!bitnset(DBS_WRITESTATSTOSYMLINK, DontBlameSendmail)) 151 sff |= SFF_NOSLINK; 152 if (!bitnset(DBS_WRITESTATSTOHARDLINK, DontBlameSendmail)) 153 sff |= SFF_NOHLINK; 154 155 fd = safeopen(sfile, O_RDWR, 0600, sff); 156 if (fd < 0) 157 { 158 if (LogLevel > 12) 159 sm_syslog(LOG_INFO, NOQID, "poststats: %s: %s", 160 sfile, sm_errstring(errno)); 161 errno = 0; 162 entered = false; 163 return; 164 } 165 if (read(fd, (char *) &stats, sizeof(stats)) == sizeof(stats) && 166 stats.stat_size == sizeof(stats) && 167 stats.stat_magic == Stat.stat_magic && 168 stats.stat_version == Stat.stat_version) 169 { 170 /* merge current statistics into statfile */ 171 register int i; 172 173 for (i = 0; i < MAXMAILERS; i++) 174 { 175 stats.stat_nf[i] += Stat.stat_nf[i]; 176 stats.stat_bf[i] += Stat.stat_bf[i]; 177 stats.stat_nt[i] += Stat.stat_nt[i]; 178 stats.stat_bt[i] += Stat.stat_bt[i]; 179 stats.stat_nr[i] += Stat.stat_nr[i]; 180 stats.stat_nd[i] += Stat.stat_nd[i]; 181 stats.stat_nq[i] += Stat.stat_nq[i]; 182 } 183 stats.stat_cr += Stat.stat_cr; 184 stats.stat_ct += Stat.stat_ct; 185 stats.stat_cf += Stat.stat_cf; 186 } 187 else 188 memmove((char *) &stats, (char *) &Stat, sizeof(stats)); 189 190 /* write out results */ 191 (void) lseek(fd, (off_t) 0, 0); 192 (void) write(fd, (char *) &stats, sizeof(stats)); 193 (void) close(fd); 194 195 /* clear the structure to avoid future disappointment */ 196 clearstats(); 197 entered = false; 198 } 199