| 1 | /* |
| 2 | * Copyright 2000, International Business Machines Corporation and others. |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * This software has been released under the terms of the IBM Public |
| 6 | * License. For details, see the LICENSE file in the top-level source |
| 7 | * directory or online at http://www.openafs.org/dl/license10.html |
| 8 | */ |
| 9 | |
| 10 | #include <afsconfig.h> |
| 11 | #include <afs/param.h> |
| 12 | |
| 13 | #include <roken.h> |
| 14 | |
| 15 | #include <afs/afsutil.h> |
| 16 | |
| 17 | #include "audit-api.h" |
| 18 | |
| 19 | static FILE *auditout; |
| 20 | |
| 21 | static void |
| 22 | send_msg(void) |
| 23 | { |
| 24 | fprintf(auditout, "\n"); |
| 25 | fflush(auditout); |
| 26 | } |
| 27 | |
| 28 | static void |
| 29 | append_msg(const char *format, ...) |
| 30 | { |
| 31 | va_list vaList; |
| 32 | |
| 33 | va_start(vaList, format); |
| 34 | vfprintf(auditout, format, vaList); |
| 35 | va_end(vaList); |
| 36 | } |
| 37 | |
| 38 | static int |
| 39 | open_file(const char *fileName) |
| 40 | { |
| 41 | int tempfd, flags, r; |
| 42 | char *oldName; |
| 43 | |
| 44 | #ifndef AFS_NT40_ENV |
| 45 | struct stat statbuf; |
| 46 | |
| 47 | if ((lstat(fileName, &statbuf) == 0) |
| 48 | && (S_ISFIFO(statbuf.st_mode))) { |
| 49 | flags = O_WRONLY | O_NONBLOCK; |
| 50 | } else |
| 51 | #endif |
| 52 | { |
| 53 | r = asprintf(&oldName, "%s.old", fileName); |
| 54 | if (r < 0 || oldName == NULL) { |
| 55 | printf("Warning: Unable to create backup filename. Auditing ignored\n"); |
| 56 | return 1; |
| 57 | } |
| 58 | rk_rename(fileName, oldName); |
| 59 | flags = O_WRONLY | O_TRUNC | O_CREAT; |
| 60 | free(oldName); |
| 61 | } |
| 62 | tempfd = open(fileName, flags, 0666); |
| 63 | if (tempfd > -1) { |
| 64 | auditout = fdopen(tempfd, "a"); |
| 65 | if (!auditout) { |
| 66 | printf("Warning: auditlog %s not writable, ignored.\n", fileName); |
| 67 | return 1; |
| 68 | } |
| 69 | } else { |
| 70 | printf("Warning: auditlog %s not writable, ignored.\n", fileName); |
| 71 | return 1; |
| 72 | } |
| 73 | return 0; |
| 74 | } |
| 75 | |
| 76 | static void |
| 77 | print_interface_stats(FILE *out) |
| 78 | { |
| 79 | return; |
| 80 | } |
| 81 | |
| 82 | const struct osi_audit_ops audit_file_ops = { |
| 83 | &send_msg, |
| 84 | &append_msg, |
| 85 | &open_file, |
| 86 | &print_interface_stats, |
| 87 | }; |