/* * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1980, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "pathnames.h" /*XXX*/#include time_t expand(u_int); char *flagbits(int); const char *getdev(dev_t); int readrec_forward(FILE *f, struct acctv3 *av3); int readrec_backward(FILE *f, struct acctv3 *av3); int requested(char *[], struct acctv3 *); static void usage(void); #define AC_UTIME 1 /* user */ #define AC_STIME 2 /* system */ #define AC_ETIME 4 /* elapsed */ #define AC_CTIME 8 /* user + system time, default */ #define AC_BTIME 16 /* starting time */ #define AC_FTIME 32 /* exit time (starting time + elapsed time )*/ int main(int argc, char *argv[]) { struct acctv3 ab; char *p; FILE *fp; int (*readrec)(FILE *f, struct acctv3 *av3); time_t t; int ch, rv; const char *acctfile, *format; char buf[1024]; int flags = 0; acctfile = _PATH_ACCT; format = NULL; while ((ch = getopt(argc, argv, "f:usecSE")) != -1) switch((char)ch) { case 'f': acctfile = optarg; break; case 'u': flags |= AC_UTIME; /* user time */ break; case 's': flags |= AC_STIME; /* system time */ break; case 'e': flags |= AC_ETIME; /* elapsed time */ break; case 'c': flags |= AC_CTIME; /* user + system time */ break; case 'S': flags |= AC_BTIME; /* starting time */ break; case 'E': /* exit time (starting time + elapsed time )*/ flags |= AC_FTIME; break; case '?': default: usage(); } /* default user + system time and starting time */ if (!flags) { flags = AC_CTIME | AC_BTIME; } argc -= optind; argv += optind; if (argc > 0 && **argv == '+') { format = *argv + 1; /* skip + */ argc--; argv++; } if (strcmp(acctfile, "-") == 0) { fp = stdin; readrec = readrec_forward; } else { /* Open the file. */ if ((fp = fopen(acctfile, "r")) == NULL) err(1, "could not open %s", acctfile); if (fseek(fp, 0l, SEEK_END) == -1) err(1, "seek to end of %s failed", acctfile); readrec = readrec_backward; } while ((rv = readrec(fp, &ab)) == 1) { for (p = &ab.ac_comm[0]; p < &ab.ac_comm[AC_COMM_LEN] && *p; ++p) if (!isprint(*p)) *p = '?'; if (*argv && !requested(argv, &ab)) continue; (void)printf("%-*.*s %-7s %-*s %-8s", AC_COMM_LEN, AC_COMM_LEN, ab.ac_comm, flagbits(ab.ac_flagx), MAXLOGNAME - 1, user_from_uid(ab.ac_uid, 0), getdev(ab.ac_tty)); /* user + system time */ if (flags & AC_CTIME) { (void)printf(" %6.3f secs", (ab.ac_utime + ab.ac_stime) / 1000000); } /* usr time */ if (flags & AC_UTIME) { (void)printf(" %6.3f us", ab.ac_utime / 1000000); } /* system time */ if (flags & AC_STIME) { (void)printf(" %6.3f sy", ab.ac_stime / 1000000); } /* elapsed time */ if (flags & AC_ETIME) { (void)printf(" %8.3f es", ab.ac_etime / 1000000); } /* starting time */ if (flags & AC_BTIME) { if (format != NULL) { (void)strftime(buf, sizeof(buf), format, localtime(&ab.ac_btime)); (void)printf(" %s", buf); } else (void)printf(" %.19s", ctime(&ab.ac_btime)); } /* exit time (starting time + elapsed time )*/ if (flags & AC_FTIME) { t = ab.ac_btime; t += (time_t)(ab.ac_etime / 1000000); if (format != NULL) { (void)strftime(buf, sizeof(buf), format, localtime(&t)); (void)printf(" %s", buf); } else (void)printf(" %.19s", ctime(&t)); } printf("\n"); } if (rv == EOF) err(1, "read record from %s failed", acctfile); if (fflush(stdout)) err(1, "stdout"); exit(0); } char * flagbits(int f) { static char flags[20] = "-"; char *p; #define BIT(flag, ch) if (f & flag) *p++ = ch p = flags + 1; BIT(ASU, 'S'); BIT(AFORK, 'F'); BIT(ACOMPAT, 'C'); BIT(ACORE, 'D'); BIT(AXSIG, 'X'); *p = '\0'; return (flags); } int requested(char *argv[], struct acctv3 *acp) { const char *p; do { p = user_from_uid(acp->ac_uid, 0); if (!strcmp(p, *argv)) return (1); if ((p = getdev(acp->ac_tty)) && !strcmp(p, *argv)) return (1); if (!strncmp(acp->ac_comm, *argv, AC_COMM_LEN)) return (1); } while (*++argv); return (0); } const char * getdev(dev_t dev) { static dev_t lastdev = (dev_t)-1; static const char *lastname; if (dev == NODEV) /* Special case. */ return ("__"); if (dev == lastdev) /* One-element cache. */ return (lastname); lastdev = dev; lastname = devname(dev, S_IFCHR); return (lastname); } static void usage(void) { (void)fprintf(stderr, "usage: lastcomm [-EScesu] [-f file] [+format] [command ...] " "[user ...] [terminal ...]\n"); exit(1); }