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authorOmar Polo <op@omarpolo.com>2023-06-06 08:50:54 +0000
committerOmar Polo <op@omarpolo.com>2023-06-06 08:50:54 +0000
commit281a8852b3a2d76c10d2fb6476a706746d05509b (patch)
treea9c5a73adf8e85597f0eb87d1865e28249c2b8a1 /log.c
parent3dd89fbb44f7f61b8c89db12f4469ca49c17bc68 (diff)
rename log.[ch] to logger.[ch]
Diffstat (limited to 'log.c')
-rw-r--r--log.c382
1 files changed, 0 insertions, 382 deletions
diff --git a/log.c b/log.c
deleted file mode 100644
index a6d21d5..0000000
--- a/log.c
+++ /dev/null
@@ -1,382 +0,0 @@
-/*
- * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "gmid.h"
-
-#include <sys/types.h>
-#include <sys/uio.h>
-
-#include <errno.h>
-#include <event.h>
-#include <imsg.h>
-#include <netdb.h>
-#include <poll.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <string.h>
-#include <syslog.h>
-#include <time.h>
-
-#include "log.h"
-
-static struct event imsgev;
-
-static FILE *log;
-
-static void handle_imsg_quit(struct imsgbuf*, struct imsg*, size_t);
-static void handle_imsg_log(struct imsgbuf*, struct imsg*, size_t);
-static void handle_imsg_log_type(struct imsgbuf*, struct imsg*, size_t);
-static void handle_dispatch_imsg(int, short, void*);
-
-static imsg_handlerfn *handlers[] = {
- [IMSG_QUIT] = handle_imsg_quit,
- [IMSG_LOG] = handle_imsg_log,
- [IMSG_LOG_REQUEST] = handle_imsg_log,
- [IMSG_LOG_TYPE] = handle_imsg_log_type,
-};
-
-static inline void
-print_date(FILE *f)
-{
- struct tm tminfo;
- time_t t;
- char buf[20];
-
- time(&t);
- strftime(buf, sizeof(buf), "%F %T",
- localtime_r(&t, &tminfo));
- fprintf(f, "[%s] ", buf);
-}
-
-static inline int
-should_log(int priority)
-{
- switch (priority) {
- case LOG_ERR:
- return 1;
- case LOG_WARNING:
- return 1;
- case LOG_NOTICE:
- return conf.verbose >= 1;
- case LOG_INFO:
- return conf.verbose >= 2;
- case LOG_DEBUG:
- return conf.verbose >= 3;
- default:
- return 0;
- }
-}
-
-static inline void
-send_log(int type, int priority, const char *msg, size_t len)
-{
- imsg_compose(&logibuf, type, priority, 0, -1, msg, len);
- imsg_flush(&logibuf);
-}
-
-static __dead void
-fatal_impl(int use_err, const char *fmt, va_list ap)
-{
- struct pollfd pfd;
- char *str, *tmp;
- int r, t, err;
-
- err = errno;
-
- if ((r = vasprintf(&str, fmt, ap)) != -1) {
- if (use_err &&
- (t = asprintf(&tmp, "%s: %s", str, strerror(err))) !=
- -1) {
- free(str);
- str = tmp;
- r = t;
- }
- } else
- str = NULL, r = 0;
-
- send_log(IMSG_LOG, LOG_CRIT, str, r + 1);
- free(str);
-
- /* wait for the logger process to shut down */
- memset(&pfd, 0, sizeof(pfd));
- pfd.fd = logibuf.fd;
- pfd.events = POLLIN;
- poll(&pfd, 1, 1000);
-
- exit(1);
-}
-
-void __dead
-fatal(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- fatal_impl(1, fmt, ap);
- va_end(ap);
-}
-
-void __dead
-fatalx(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- fatal_impl(0, fmt, ap);
- va_end(ap);
-}
-
-static inline void
-vlog(int priority, struct client *c,
- const char *fmt, va_list ap)
-{
- char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
- char *fmted, *s;
- size_t len;
- int ec;
-
- if (!should_log(priority))
- return;
-
- if (c != NULL) {
- len = sizeof(c->addr);
- ec = getnameinfo((struct sockaddr*)&c->addr, len,
- hbuf, sizeof(hbuf),
- sbuf, sizeof(sbuf),
- NI_NUMERICHOST | NI_NUMERICSERV);
- if (ec != 0)
- fatal("getnameinfo: %s", gai_strerror(ec));
- }
-
- if (vasprintf(&fmted, fmt, ap) == -1)
- fatal("vasprintf: %s", strerror(errno));
-
- if (c == NULL)
- ec = asprintf(&s, "internal: %s", fmted);
- else
- ec = asprintf(&s, "%s:%s %s", hbuf, sbuf, fmted);
-
- if (ec < 0)
- fatal("asprintf: %s", strerror(errno));
-
- send_log(IMSG_LOG, priority, s, ec+1);
-
- free(fmted);
- free(s);
-}
-
-void
-log_err(struct client *c, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vlog(LOG_ERR, c, fmt, ap);
- va_end(ap);
-}
-
-void
-log_warn(struct client *c, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vlog(LOG_WARNING, c, fmt, ap);
- va_end(ap);
-}
-
-void
-log_notice(struct client *c, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vlog(LOG_NOTICE, c, fmt, ap);
- va_end(ap);
-}
-
-void
-log_info(struct client *c, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vlog(LOG_INFO, c, fmt, ap);
- va_end(ap);
-}
-
-void
-log_debug(struct client *c, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vlog(LOG_DEBUG, c, fmt, ap);
- va_end(ap);
-}
-
-/* strchr, but with a bound */
-static char *
-gmid_strnchr(char *s, int c, size_t len)
-{
- size_t i;
-
- for (i = 0; i < len; ++i)
- if (s[i] == c)
- return &s[i];
- return NULL;
-}
-
-void
-log_request(struct client *c, char *meta, size_t l)
-{
- char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV], b[GEMINI_URL_LEN];
- char *fmted;
- const char *t;
- size_t len;
- int ec;
-
- len = sizeof(c->addr);
- ec = getnameinfo((struct sockaddr*)&c->addr, len,
- hbuf, sizeof(hbuf),
- sbuf, sizeof(sbuf),
- NI_NUMERICHOST | NI_NUMERICSERV);
- if (ec != 0)
- fatalx("getnameinfo: %s", gai_strerror(ec));
-
- if (c->iri.schema != NULL) {
- /* serialize the IRI */
- strlcpy(b, c->iri.schema, sizeof(b));
- strlcat(b, "://", sizeof(b));
-
- /* log the decoded host name, but if it was invalid
- * use the raw one. */
- if (*c->domain != '\0')
- strlcat(b, c->domain, sizeof(b));
- else
- strlcat(b, c->iri.host, sizeof(b));
-
- if (*c->iri.path != '/')
- strlcat(b, "/", sizeof(b));
- strlcat(b, c->iri.path, sizeof(b)); /* TODO: sanitize UTF8 */
- if (*c->iri.query != '\0') { /* TODO: sanitize UTF8 */
- strlcat(b, "?", sizeof(b));
- strlcat(b, c->iri.query, sizeof(b));
- }
- } else {
- if ((t = c->req) == NULL)
- t = "";
- strlcpy(b, t, sizeof(b));
- }
-
- if ((t = gmid_strnchr(meta, '\r', l)) == NULL)
- t = meta + len;
-
- ec = asprintf(&fmted, "%s:%s GET %s %.*s", hbuf, sbuf, b,
- (int)(t-meta), meta);
- if (ec < 0)
- err(1, "asprintf");
- send_log(IMSG_LOG_REQUEST, LOG_NOTICE, fmted, ec+1);
- free(fmted);
-}
-
-
-
-static void
-do_log(int type, int priority, const char *msg)
-{
- int quit = 0;
-
- if (priority == LOG_CRIT) {
- quit = 1;
- priority = LOG_ERR;
- }
-
- if (log != NULL) {
- if (type != IMSG_LOG_REQUEST)
- print_date(log);
- fprintf(log, "%s\n", msg);
- } else
- syslog(LOG_DAEMON | priority, "%s", msg);
-
- if (quit)
- exit(1);
-}
-
-static void
-handle_imsg_quit(struct imsgbuf *ibuf, struct imsg *imsg, size_t datalen)
-{
- event_loopbreak();
-}
-
-static void
-handle_imsg_log(struct imsgbuf *ibuf, struct imsg *imsg, size_t datalen)
-{
- int priority;
- char *msg;
-
- msg = imsg->data;
- msg[datalen-1] = '\0';
- priority = imsg->hdr.peerid;
- do_log(imsg->hdr.type, priority, msg);
-}
-
-static void
-handle_imsg_log_type(struct imsgbuf *ibuf, struct imsg *imsg, size_t datalen)
-{
- if (log != NULL && log != stderr) {
- fflush(log);
- fclose(log);
- }
- log = NULL;
-
- if (imsg->fd != -1) {
- if ((log = fdopen(imsg->fd, "a")) == NULL) {
- syslog(LOG_DAEMON | LOG_ERR, "fdopen: %s",
- strerror(errno));
- exit(1);
- }
- }
-}
-
-static void
-handle_dispatch_imsg(int fd, short ev, void *d)
-{
- struct imsgbuf *ibuf = d;
- dispatch_imsg(ibuf, handlers, sizeof(handlers));
-}
-
-int
-logger_main(int fd, struct imsgbuf *ibuf)
-{
- log = stderr;
-
- openlog(getprogname(), LOG_NDELAY, LOG_DAEMON);
- tzset();
-
- event_init();
-
- event_set(&imsgev, fd, EV_READ | EV_PERSIST, &handle_dispatch_imsg, ibuf);
- event_add(&imsgev, NULL);
-
- sandbox_logger_process();
-
- event_dispatch();
-
- closelog();
-
- return 0;
-}