| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "apr.h" |
| #include "apr_lib.h" |
| #include "apr_strings.h" |
| #include "apr_errno.h" |
| #include "apr_file_io.h" |
| #include "apr_file_info.h" |
| #include "apr_general.h" |
| #include "apr_time.h" |
| #include "apr_getopt.h" |
| #include "apr_thread_proc.h" |
| #include "apr_signal.h" |
| #if APR_FILES_AS_SOCKETS |
| #include "apr_poll.h" |
| #endif |
| |
| #if APR_HAVE_STDLIB_H |
| #include <stdlib.h> |
| #endif |
| #define APR_WANT_STRFUNC |
| #include "apr_want.h" |
| |
| #define BUFSIZE 65536 |
| |
| #define ROTATE_NONE 0 |
| #define ROTATE_NEW 1 |
| #define ROTATE_TIME 2 |
| #define ROTATE_SIZE 3 |
| #define ROTATE_FORCE 4 |
| |
| static const char *const ROTATE_REASONS[] = { |
| "None", |
| "Open a new file", |
| "Time interval expired", |
| "Maximum size reached", |
| "Forced rotation", |
| NULL |
| }; |
| |
| typedef struct rotate_config rotate_config_t; |
| |
| struct rotate_config { |
| unsigned int sRotation; |
| int tRotation; |
| int utc_offset; |
| int use_localtime; |
| int use_strftime; |
| int force_open; |
| int verbose; |
| int echo; |
| char *szLogRoot; |
| int truncate; |
| int truncate_rotated_only; |
| const char *linkfile; |
| const char *postrotate_prog; |
| #if APR_FILES_AS_SOCKETS |
| int create_empty; |
| #endif |
| int num_files; |
| int create_path; |
| }; |
| |
| typedef struct rotate_status rotate_status_t; |
| |
| /* "adjusted_time_t" is used to store Unix time (seconds since epoch) |
| * which has been adjusted for some timezone fudge factor. It should |
| * be used for storing the return values from get_now(). A typedef is |
| * used since this type is similar to time_t, but different. */ |
| typedef long adjusted_time_t; |
| |
| /* Structure to contain relevant logfile state: fd, pool and |
| * filename. */ |
| struct logfile { |
| apr_pool_t *pool; |
| apr_file_t *fd; |
| char name[APR_PATH_MAX]; |
| }; |
| |
| struct rotate_status { |
| struct logfile current; /* current logfile. */ |
| apr_pool_t *pool; /* top-level pool */ |
| int rotateReason; |
| adjusted_time_t tLogEnd; |
| int nMessCount; |
| int fileNum; |
| }; |
| |
| static rotate_config_t config; |
| static rotate_status_t status; |
| |
| static void usage(const char *argv0, const char *reason) |
| { |
| if (reason) { |
| fprintf(stderr, "%s\n", reason); |
| } |
| fprintf(stderr, |
| #if APR_FILES_AS_SOCKETS |
| "Usage: %s [-vlfDtTec] [-L linkname] [-p prog] [-n number] <logfile> " |
| #else |
| "Usage: %s [-vlfDtTe] [-L linkname] [-p prog] [-n number] <logfile> " |
| #endif |
| "{<rotation time in seconds>|<rotation size>(B|K|M|G)} " |
| "[offset minutes from UTC]\n\n", |
| argv0); |
| #ifdef OS2 |
| fprintf(stderr, |
| "Add this:\n\nTransferLog \"|%s.exe /some/where 86400\"\n\n", |
| argv0); |
| #else |
| fprintf(stderr, |
| "Add this:\n\nTransferLog \"|%s /some/where 86400\"\n\n", |
| argv0); |
| fprintf(stderr, |
| "or \n\nTransferLog \"|%s /some/where 5M\"\n\n", argv0); |
| #endif |
| fprintf(stderr, |
| "to httpd.conf. By default, the generated name will be\n" |
| "<logfile>.nnnn where nnnn is the system time at which the log\n" |
| "nominally starts (N.B. if using a rotation time, the time will\n" |
| "always be a multiple of the rotation time, so you can synchronize\n" |
| "cron scripts with it). If <logfile> contains strftime conversion\n" |
| "specifications, those will be used instead. At the end of each\n" |
| "rotation time or when the file size is reached a new log is\n" |
| "started.\n" |
| "\n" |
| "Options:\n" |
| " -v Verbose operation. Messages are written to stderr.\n" |
| " -l Base rotation on local time instead of UTC.\n" |
| " -L path Create hard link from current log to specified path.\n" |
| " -p prog Run specified program after opening a new log file. See below.\n" |
| " -f Force opening of log on program start.\n" |
| " -D Create parent directories of log file.\n" |
| " -t Truncate logfile instead of rotating, tail friendly.\n" |
| " -T Truncate logfiles opened for rotation, but not the initial logfile.\n" |
| " -e Echo log to stdout for further processing.\n" |
| #if APR_FILES_AS_SOCKETS |
| " -c Create log even if it is empty.\n" |
| #endif |
| " -n num Rotate file by adding suffixes '.1', '.2', ..., '.num'.\n" |
| "\n" |
| "The program for '-p' is invoked as \"[prog] <curfile> [<prevfile>]\"\n" |
| "where <curfile> is the filename of the newly opened logfile, and\n" |
| "<prevfile>, if given, is the filename of the previously used logfile.\n" |
| "\n"); |
| exit(1); |
| } |
| |
| /* This function returns the current Unix time (time_t) adjusted for |
| * any configured or derived local time offset. The offset applied is |
| * returned via *offset. */ |
| static adjusted_time_t get_now(rotate_config_t *config, apr_int32_t *offset) |
| { |
| apr_time_t tNow = apr_time_now(); |
| apr_int32_t utc_offset; |
| |
| if (config->use_localtime) { |
| /* Check for our UTC offset before using it, since it might |
| * change if there's a switch between standard and daylight |
| * savings time. |
| */ |
| apr_time_exp_t lt; |
| apr_time_exp_lt(<, tNow); |
| utc_offset = lt.tm_gmtoff; |
| } |
| else { |
| utc_offset = config->utc_offset; |
| } |
| |
| if (offset) |
| *offset = utc_offset; |
| |
| return apr_time_sec(tNow) + utc_offset; |
| } |
| |
| /* |
| * Close a file and destroy the associated pool. |
| */ |
| static void close_logfile(rotate_config_t *config, struct logfile *logfile) |
| { |
| if (config->verbose) { |
| fprintf(stderr, "Closing file %s\n", logfile->name); |
| } |
| apr_file_close(logfile->fd); |
| apr_pool_destroy(logfile->pool); |
| } |
| |
| /* |
| * Dump the configuration parsing result to STDERR. |
| */ |
| static void dumpConfig (rotate_config_t *config) |
| { |
| fprintf(stderr, "Rotation time interval: %12d\n", config->tRotation); |
| fprintf(stderr, "Rotation size interval: %12d\n", config->sRotation); |
| fprintf(stderr, "Rotation time UTC offset: %12d\n", config->utc_offset); |
| fprintf(stderr, "Rotation based on localtime: %12s\n", config->use_localtime ? "yes" : "no"); |
| fprintf(stderr, "Rotation file date pattern: %12s\n", config->use_strftime ? "yes" : "no"); |
| fprintf(stderr, "Rotation file forced open: %12s\n", config->force_open ? "yes" : "no"); |
| fprintf(stderr, "Create parent directories: %12s\n", config->create_path ? "yes" : "no"); |
| fprintf(stderr, "Rotation verbose: %12s\n", config->verbose ? "yes" : "no"); |
| #if APR_FILES_AS_SOCKETS |
| fprintf(stderr, "Rotation create empty logs: %12s\n", config->create_empty ? "yes" : "no"); |
| #endif |
| fprintf(stderr, "Rotation file name: %21s\n", config->szLogRoot); |
| fprintf(stderr, "Post-rotation prog: %21s\n", config->postrotate_prog ? config->postrotate_prog : "not used"); |
| } |
| |
| /* |
| * Check whether we need to rotate. |
| * Possible reasons are: |
| * - No log file open (ROTATE_NEW) |
| * - User forces us to rotate (ROTATE_FORCE) |
| * - Our log file size is already bigger than the |
| * allowed maximum (ROTATE_SIZE) |
| * - The next log time interval expired (ROTATE_TIME) |
| * |
| * When size and time constraints are both given, |
| * it suffices that one of them is fulfilled. |
| */ |
| static void checkRotate(rotate_config_t *config, rotate_status_t *status) |
| { |
| if (status->current.fd == NULL) { |
| status->rotateReason = ROTATE_NEW; |
| } |
| else if (config->sRotation) { |
| apr_finfo_t finfo; |
| apr_off_t current_size = -1; |
| |
| if (apr_file_info_get(&finfo, APR_FINFO_SIZE, status->current.fd) == APR_SUCCESS) { |
| current_size = finfo.size; |
| } |
| |
| if (current_size > config->sRotation) { |
| status->rotateReason = ROTATE_SIZE; |
| } |
| else if (config->tRotation) { |
| if (get_now(config, NULL) >= status->tLogEnd) { |
| status->rotateReason = ROTATE_TIME; |
| } |
| } |
| } |
| else if (config->tRotation) { |
| if (get_now(config, NULL) >= status->tLogEnd) { |
| status->rotateReason = ROTATE_TIME; |
| } |
| } |
| else { |
| fprintf(stderr, "No rotation time or size specified\n"); |
| exit(2); |
| } |
| |
| if (status->rotateReason != ROTATE_NONE && config->verbose) { |
| fprintf(stderr, "File rotation needed, reason: %s\n", ROTATE_REASONS[status->rotateReason]); |
| } |
| } |
| |
| /* |
| * Handle post-rotate processing. |
| */ |
| static void post_rotate(apr_pool_t *pool, struct logfile *newlog, |
| rotate_config_t *config, rotate_status_t *status) |
| { |
| apr_status_t rv; |
| apr_procattr_t *pattr; |
| const char *argv[4]; |
| apr_proc_t proc; |
| |
| /* Handle link file, if configured. */ |
| if (config->linkfile) { |
| apr_file_remove(config->linkfile, newlog->pool); |
| if (config->verbose) { |
| fprintf(stderr, "Linking %s to %s\n", newlog->name, config->linkfile); |
| } |
| rv = apr_file_link(newlog->name, config->linkfile); |
| if (rv != APR_SUCCESS) { |
| char *error = apr_psprintf(pool, "Error linking file %s to %s (%pm)\n", |
| newlog->name, config->linkfile, &rv); |
| fputs(error, stderr); |
| exit(2); |
| } |
| } |
| |
| if (!config->postrotate_prog) { |
| /* Nothing more to do. */ |
| return; |
| } |
| |
| /* Collect any zombies from a previous run, but don't wait. */ |
| while (apr_proc_wait_all_procs(&proc, NULL, NULL, APR_NOWAIT, pool) == APR_CHILD_DONE) |
| /* noop */; |
| |
| if ((rv = apr_procattr_create(&pattr, pool)) != APR_SUCCESS) { |
| char *error = apr_psprintf(pool, "post_rotate: apr_procattr_create failed " \ |
| "for '%s': %pm\n", config->postrotate_prog, &rv); |
| fputs(error, stderr); |
| return; |
| } |
| |
| rv = apr_procattr_error_check_set(pattr, 1); |
| if (rv == APR_SUCCESS) |
| rv = apr_procattr_cmdtype_set(pattr, APR_PROGRAM_ENV); |
| |
| if (rv != APR_SUCCESS) { |
| char *error = apr_psprintf(pool, "post_rotate: could not set up process " \ |
| "attributes for '%s': %pm\n", config->postrotate_prog, |
| &rv); |
| fputs(error, stderr); |
| return; |
| } |
| |
| argv[0] = config->postrotate_prog; |
| argv[1] = newlog->name; |
| if (status->current.fd) { |
| argv[2] = status->current.name; |
| argv[3] = NULL; |
| } |
| else { |
| argv[2] = NULL; |
| } |
| |
| if (config->verbose) |
| fprintf(stderr, "Calling post-rotate program: %s\n", argv[0]); |
| |
| rv = apr_proc_create(&proc, argv[0], argv, NULL, pattr, pool); |
| if (rv != APR_SUCCESS) { |
| char *error = apr_psprintf(pool, "Could not spawn post-rotate process " \ |
| "'%s': %pm\n", config->postrotate_prog, &rv); |
| fputs(error, stderr); |
| return; |
| } |
| } |
| |
| /* After a error, truncate the current file and write out an error |
| * message, which must be contained in message. The process is |
| * terminated on failure. */ |
| static void truncate_and_write_error(rotate_status_t *status, const char *message) |
| { |
| apr_size_t buflen = strlen(message); |
| |
| if (apr_file_trunc(status->current.fd, 0) != APR_SUCCESS) { |
| fprintf(stderr, "Error truncating the file %s\n", status->current.name); |
| exit(2); |
| } |
| if (apr_file_write_full(status->current.fd, message, buflen, NULL) != APR_SUCCESS) { |
| fprintf(stderr, "Error writing error (%s) to the file %s\n", |
| message, status->current.name); |
| exit(2); |
| } |
| } |
| |
| /* |
| * Open a new log file, and if successful |
| * also close the old one. |
| * |
| * The timestamp for the calculation of the file |
| * name of the new log file will be the actual millisecond |
| * timestamp, except when a regular rotation based on a time |
| * interval is configured and the previous interval |
| * is over. Then the timestamp is the starting time |
| * of the actual interval. |
| */ |
| static void doRotate(rotate_config_t *config, rotate_status_t *status) |
| { |
| apr_int32_t offset; |
| adjusted_time_t now, tLogStart; |
| apr_status_t rv; |
| struct logfile newlog; |
| int thisLogNum = -1; |
| int oldreason = status->rotateReason; |
| int truncate = config->truncate; |
| |
| /* Retrieve local-time-adjusted-Unix-time. */ |
| now = get_now(config, &offset); |
| |
| status->rotateReason = ROTATE_NONE; |
| |
| if (config->tRotation) { |
| adjusted_time_t tLogEnd; |
| |
| tLogStart = (now / config->tRotation) * config->tRotation; |
| tLogEnd = tLogStart + config->tRotation; |
| /* |
| * Check if rotation was forced and the last rotation |
| * interval is not yet over. Use the value of now instead |
| * of the time interval boundary for the file name then. |
| */ |
| if (tLogStart < status->tLogEnd) { |
| tLogStart = now; |
| } |
| status->tLogEnd = tLogEnd; |
| } |
| else { |
| tLogStart = now; |
| } |
| |
| if (config->use_strftime) { |
| apr_time_t tNow = apr_time_from_sec(tLogStart); |
| apr_time_exp_t e; |
| apr_size_t rs; |
| |
| /* Explode the local-time-adjusted-Unix-time into a struct tm, |
| * first *reversing* local-time-adjustment applied by |
| * get_now() if we are using localtime. */ |
| if (config->use_localtime) |
| apr_time_exp_lt(&e, tNow - apr_time_from_sec(offset)); |
| else |
| apr_time_exp_gmt(&e, tNow); |
| apr_strftime(newlog.name, &rs, sizeof(newlog.name), config->szLogRoot, &e); |
| } |
| else { |
| if (config->truncate) { |
| apr_snprintf(newlog.name, sizeof(newlog.name), "%s", config->szLogRoot); |
| } |
| else if (config->num_files > 0) { |
| if (status->fileNum == -1 || status->fileNum == (config->num_files - 1)) { |
| thisLogNum = 0; |
| apr_snprintf(newlog.name, sizeof(newlog.name), "%s", config->szLogRoot); |
| } |
| else { |
| thisLogNum = status->fileNum + 1; |
| apr_snprintf(newlog.name, sizeof(newlog.name), "%s.%d", config->szLogRoot, thisLogNum); |
| } |
| } |
| else { |
| apr_snprintf(newlog.name, sizeof(newlog.name), "%s.%010ld", config->szLogRoot, |
| tLogStart); |
| } |
| } |
| apr_pool_create(&newlog.pool, status->pool); |
| if (config->create_path) { |
| char *ptr = strrchr(newlog.name, '/'); |
| if (ptr && ptr > newlog.name) { |
| char *path = apr_pstrmemdup(newlog.pool, newlog.name, ptr - newlog.name); |
| if (config->verbose) { |
| fprintf(stderr, "Creating directory tree %s\n", path); |
| } |
| rv = apr_dir_make_recursive(path, APR_FPROT_OS_DEFAULT, newlog.pool); |
| if (rv != APR_SUCCESS) { |
| char *error = apr_psprintf(newlog.pool, |
| "Could not create directory '%s' (%pm)\n", |
| path, &rv); |
| fputs(error, stderr); |
| exit(2); |
| } |
| } |
| } |
| if (config->verbose) { |
| fprintf(stderr, "Opening file %s\n", newlog.name); |
| } |
| |
| if (!truncate) { |
| /* -n and -T truncate subsequent files only. */ |
| if (status->current.fd && |
| (config->num_files > 0 || config->truncate_rotated_only)) { |
| truncate = 1; |
| } |
| } |
| rv = apr_file_open(&newlog.fd, newlog.name, |
| APR_WRITE | APR_CREATE | APR_APPEND |
| | (truncate ? APR_TRUNCATE : 0), |
| APR_OS_DEFAULT, newlog.pool); |
| if (rv == APR_SUCCESS) { |
| /* Handle post-rotate processing. */ |
| post_rotate(newlog.pool, &newlog, config, status); |
| |
| status->fileNum = thisLogNum; |
| /* Close out old (previously 'current') logfile, if any. */ |
| if (status->current.fd) { |
| close_logfile(config, &status->current); |
| } |
| |
| /* New log file is now 'current'. */ |
| status->current = newlog; |
| |
| /* The first write to the initial file hasn't checked for size. |
| * In the normalized timestamp case and the custom strftime case with |
| * any reasonable accuracy, it's futile as the rotation will pick the |
| * same filename again. |
| * For -n, when not truncating, check and rotate. |
| */ |
| if (config->num_files > 0 && oldreason == ROTATE_NEW && !config->truncate) { |
| checkRotate(config, status); |
| if (status->rotateReason != ROTATE_NONE) { |
| doRotate(config, status); |
| } |
| } |
| } |
| else { |
| char *error = apr_psprintf(newlog.pool, "%pm", &rv); |
| char *message; |
| |
| /* Uh-oh. Failed to open the new log file. Try to clear |
| * the previous log file, note the lost log entries, |
| * and keep on truckin'. */ |
| if (status->current.fd == NULL) { |
| fprintf(stderr, "Could not open log file '%s' (%s)\n", newlog.name, error); |
| exit(2); |
| } |
| |
| /* Try to keep this error message constant length |
| * in case it occurs several times. */ |
| message = apr_psprintf(newlog.pool, |
| "Resetting log file due to error opening " |
| "new log file, %10d messages lost: %-25.25s\n", |
| status->nMessCount, error); |
| |
| truncate_and_write_error(status, message); |
| |
| /* Throw away new state; it isn't going to be used. */ |
| apr_pool_destroy(newlog.pool); |
| } |
| |
| status->nMessCount = 0; |
| } |
| |
| /* |
| * Get a size or time param from a string. |
| * Parameter 'last' indicates, whether the |
| * argument is the last commandline argument. |
| * UTC offset is only allowed as a last argument |
| * in order to make is distinguishable from the |
| * rotation interval time. |
| */ |
| static const char *get_time_or_size(rotate_config_t *config, |
| const char *arg, int last) { |
| char *ptr = NULL; |
| /* Byte multiplier */ |
| unsigned int mult = 1; |
| if ((ptr = strchr(arg, 'B')) != NULL) { /* Found KB size */ |
| mult = 1; |
| } |
| else if ((ptr = strchr(arg, 'K')) != NULL) { /* Found KB size */ |
| mult = 1024; |
| } |
| else if ((ptr = strchr(arg, 'M')) != NULL) { /* Found MB size */ |
| mult = 1024 * 1024; |
| } |
| else if ((ptr = strchr(arg, 'G')) != NULL) { /* Found GB size */ |
| mult = 1024 * 1024 * 1024; |
| } |
| if (ptr) { /* rotation based on file size */ |
| if (config->sRotation > 0) { |
| return "Rotation size parameter allowed only once"; |
| } |
| if (*(ptr+1) == '\0') { |
| config->sRotation = atoi(arg) * mult; |
| } |
| if (config->sRotation == 0) { |
| return "Invalid rotation size parameter"; |
| } |
| } |
| else if ((config->sRotation > 0 || config->tRotation > 0) && last) { |
| /* rotation based on elapsed time */ |
| if (config->use_localtime) { |
| return "UTC offset parameter is not valid with -l"; |
| } |
| config->utc_offset = atoi(arg) * 60; |
| } |
| else { /* rotation based on elapsed time */ |
| if (config->tRotation > 0) { |
| return "Rotation time parameter allowed only once"; |
| } |
| config->tRotation = atoi(arg); |
| if (config->tRotation <= 0) { |
| return "Invalid rotation time parameter"; |
| } |
| } |
| return NULL; |
| } |
| |
| int main (int argc, const char * const argv[]) |
| { |
| char buf[BUFSIZE]; |
| apr_size_t nRead, nWrite; |
| apr_file_t *f_stdin; |
| apr_file_t *f_stdout; |
| apr_getopt_t *opt; |
| apr_status_t rv; |
| char c; |
| const char *opt_arg; |
| const char *err = NULL; |
| #if APR_FILES_AS_SOCKETS |
| apr_pollfd_t pollfd = { 0 }; |
| apr_status_t pollret = APR_SUCCESS; |
| long polltimeout; |
| #endif |
| |
| apr_app_initialize(&argc, &argv, NULL); |
| atexit(apr_terminate); |
| |
| memset(&config, 0, sizeof config); |
| memset(&status, 0, sizeof status); |
| status.rotateReason = ROTATE_NONE; |
| |
| apr_pool_create(&status.pool, NULL); |
| apr_getopt_init(&opt, status.pool, argc, argv); |
| #if APR_FILES_AS_SOCKETS |
| while ((rv = apr_getopt(opt, "lL:p:fDtTvecn:", &c, &opt_arg)) == APR_SUCCESS) { |
| #else |
| while ((rv = apr_getopt(opt, "lL:p:fDtTven:", &c, &opt_arg)) == APR_SUCCESS) { |
| #endif |
| switch (c) { |
| case 'l': |
| config.use_localtime = 1; |
| break; |
| case 'L': |
| config.linkfile = opt_arg; |
| break; |
| case 'p': |
| config.postrotate_prog = opt_arg; |
| #ifdef SIGCHLD |
| /* Prevent creation of zombies (on modern Unix systems). */ |
| apr_signal(SIGCHLD, SIG_IGN); |
| #endif |
| break; |
| case 'f': |
| config.force_open = 1; |
| break; |
| case 'D': |
| config.create_path = 1; |
| break; |
| case 't': |
| config.truncate = 1; |
| break; |
| case 'T': |
| config.truncate_rotated_only = 1; |
| break; |
| case 'v': |
| config.verbose = 1; |
| break; |
| case 'e': |
| config.echo = 1; |
| break; |
| #if APR_FILES_AS_SOCKETS |
| case 'c': |
| config.create_empty = 1; |
| break; |
| #endif |
| case 'n': |
| config.num_files = atoi(opt_arg); |
| status.fileNum = -1; |
| break; |
| } |
| } |
| |
| if (rv != APR_EOF) { |
| usage(argv[0], NULL /* specific error message already issued */ ); |
| } |
| |
| /* |
| * After the initial flags we need 2 to 4 arguments, |
| * the file name, either the rotation interval time or size |
| * or both of them, and optionally the UTC offset. |
| */ |
| if ((argc - opt->ind < 2) || (argc - opt->ind > 4) ) { |
| usage(argv[0], "Incorrect number of arguments"); |
| } |
| |
| rv = apr_filepath_merge(&config.szLogRoot, "", argv[opt->ind++], |
| APR_FILEPATH_TRUENAME, status.pool); |
| if (rv != APR_SUCCESS && rv != APR_EPATHWILD) { |
| usage(argv[0], "Invalid filename given"); |
| } |
| |
| /* Read in the remaining flags, namely time, size and UTC offset. */ |
| for(; opt->ind < argc; opt->ind++) { |
| if ((err = get_time_or_size(&config, argv[opt->ind], |
| opt->ind < argc - 1 ? 0 : 1)) != NULL) { |
| usage(argv[0], err); |
| } |
| } |
| |
| config.use_strftime = (strchr(config.szLogRoot, '%') != NULL); |
| |
| if (config.use_strftime && config.num_files > 0) { |
| fprintf(stderr, "Cannot use -n with %% in filename\n"); |
| exit(1); |
| } |
| |
| if (status.fileNum == -1 && config.num_files < 1) { |
| fprintf(stderr, "Invalid -n argument\n"); |
| exit(1); |
| } |
| |
| if (apr_file_open_stdin(&f_stdin, status.pool) != APR_SUCCESS) { |
| fprintf(stderr, "Unable to open stdin\n"); |
| exit(1); |
| } |
| |
| if (apr_file_open_stdout(&f_stdout, status.pool) != APR_SUCCESS) { |
| fprintf(stderr, "Unable to open stdout\n"); |
| exit(1); |
| } |
| |
| /* |
| * Write out result of config parsing if verbose is set. |
| */ |
| if (config.verbose) { |
| dumpConfig(&config); |
| } |
| |
| #if APR_FILES_AS_SOCKETS |
| if (config.create_empty && config.tRotation) { |
| pollfd.p = status.pool; |
| pollfd.desc_type = APR_POLL_FILE; |
| pollfd.reqevents = APR_POLLIN; |
| pollfd.desc.f = f_stdin; |
| } |
| #endif |
| |
| /* |
| * Immediately open the logfile as we start, if we were forced |
| * to do so via '-f'. |
| */ |
| if (config.force_open) { |
| doRotate(&config, &status); |
| } |
| |
| for (;;) { |
| nRead = sizeof(buf); |
| #if APR_FILES_AS_SOCKETS |
| if (config.create_empty && config.tRotation) { |
| polltimeout = status.tLogEnd ? status.tLogEnd - get_now(&config, NULL) : config.tRotation; |
| if (polltimeout <= 0) { |
| pollret = APR_TIMEUP; |
| } |
| else { |
| pollret = apr_poll(&pollfd, 1, &pollret, apr_time_from_sec(polltimeout)); |
| } |
| } |
| if (pollret == APR_SUCCESS) { |
| rv = apr_file_read(f_stdin, buf, &nRead); |
| if (APR_STATUS_IS_EOF(rv)) { |
| break; |
| } |
| else if (rv != APR_SUCCESS) { |
| exit(3); |
| } |
| } |
| else if (pollret == APR_TIMEUP) { |
| *buf = 0; |
| nRead = 0; |
| } |
| else { |
| fprintf(stderr, "Unable to poll stdin\n"); |
| exit(5); |
| } |
| #else /* APR_FILES_AS_SOCKETS */ |
| rv = apr_file_read(f_stdin, buf, &nRead); |
| if (APR_STATUS_IS_EOF(rv)) { |
| break; |
| } |
| else if (rv != APR_SUCCESS) { |
| exit(3); |
| } |
| #endif /* APR_FILES_AS_SOCKETS */ |
| checkRotate(&config, &status); |
| if (status.rotateReason != ROTATE_NONE) { |
| doRotate(&config, &status); |
| } |
| |
| nWrite = nRead; |
| rv = apr_file_write_full(status.current.fd, buf, nWrite, &nWrite); |
| if (nWrite != nRead) { |
| apr_off_t cur_offset; |
| apr_pool_t *pool; |
| char *error; |
| |
| cur_offset = 0; |
| if (apr_file_seek(status.current.fd, APR_CUR, &cur_offset) != APR_SUCCESS) { |
| cur_offset = -1; |
| } |
| status.nMessCount++; |
| apr_pool_create(&pool, status.pool); |
| error = apr_psprintf(pool, "Error %d writing to log file at offset %" |
| APR_OFF_T_FMT ". %10d messages lost (%pm)\n", |
| rv, cur_offset, status.nMessCount, &rv); |
| |
| truncate_and_write_error(&status, error); |
| apr_pool_destroy(pool); |
| } |
| else { |
| status.nMessCount++; |
| } |
| if (config.echo) { |
| if (apr_file_write_full(f_stdout, buf, nRead, NULL)) { |
| fprintf(stderr, "Unable to write to stdout\n"); |
| exit(4); |
| } |
| } |
| } |
| |
| return 0; /* reached only at stdin EOF. */ |
| } |