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sj3serv: Borrow logging library from OpenBSD

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Signed-off-by: Masanori Ogino <mogino@acm.org>
This commit is contained in:
Masanori Ogino 2023-11-29 19:46:23 +09:00
commit 091fb3a42b
5 changed files with 276 additions and 1 deletions
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3
CMakeLists.txt
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@ -112,9 +112,10 @@ target_include_directories(kanakan
add_executable(sj3serv
sj3serv/level1.c
sj3serv/log.c
sj3serv/sj.c
sj3serv/string.c
sj3serv/sj3serv.c
sj3serv/string.c
)
target_include_directories(sj3serv
PRIVATE sj3serv include

11
LICENSES/ISC.txt Normal file
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@ -0,0 +1,11 @@
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.

3
README.md
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@ -31,6 +31,9 @@ SJ3 is a kana-kanji conversion system for Japanese text input.
Unless otherwise noted, SJ3 is released under the MIT License.
The `sj3serv/log.c` and `sj3serv/log.h` are released under the ISC License as
part of the OpenBSD operating system.
Except as contained in this notice, the name of Sony Corporation and/or Software
Research Associates shall not be used in advertising or otherwise to promote the
sale, use or other dealings in this software without prior written authorization

199
sj3serv/log.c Normal file
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@ -0,0 +1,199 @@
/*-
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
*
* 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 <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <syslog.h>
#include <errno.h>
#include <time.h>
#include "log.h"
static int debug;
static int verbose;
static const char *log_procname;
void
log_init(int n_debug, int facility)
{
extern char *__progname;
debug = n_debug;
verbose = n_debug;
log_procinit(__progname);
if (!debug)
openlog(__progname, LOG_PID | LOG_NDELAY, facility);
tzset();
}
void
log_procinit(const char *procname)
{
if (procname != NULL)
log_procname = procname;
}
void
log_setverbose(int v)
{
verbose = v;
}
int
log_getverbose(void)
{
return (verbose);
}
void
logit(int pri, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vlog(pri, fmt, ap);
va_end(ap);
}
void
vlog(int pri, const char *fmt, va_list ap)
{
char *nfmt;
int saved_errno = errno;
if (debug) {
/* best effort in out of mem situations */
if (asprintf(&nfmt, "%s\n", fmt) == -1) {
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
} else {
vfprintf(stderr, nfmt, ap);
free(nfmt);
}
fflush(stderr);
} else
vsyslog(pri, fmt, ap);
errno = saved_errno;
}
void
log_warn(const char *emsg, ...)
{
char *nfmt;
va_list ap;
int saved_errno = errno;
/* best effort to even work in out of memory situations */
if (emsg == NULL)
logit(LOG_ERR, "%s", strerror(saved_errno));
else {
va_start(ap, emsg);
if (asprintf(&nfmt, "%s: %s", emsg,
strerror(saved_errno)) == -1) {
/* we tried it... */
vlog(LOG_ERR, emsg, ap);
logit(LOG_ERR, "%s", strerror(saved_errno));
} else {
vlog(LOG_ERR, nfmt, ap);
free(nfmt);
}
va_end(ap);
}
errno = saved_errno;
}
void
log_warnx(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vlog(LOG_ERR, emsg, ap);
va_end(ap);
}
void
log_info(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vlog(LOG_INFO, emsg, ap);
va_end(ap);
}
void
log_debug(const char *emsg, ...)
{
va_list ap;
if (verbose) {
va_start(ap, emsg);
vlog(LOG_DEBUG, emsg, ap);
va_end(ap);
}
}
static void
vfatalc(int code, const char *emsg, va_list ap)
{
static char s[BUFSIZ];
const char *sep;
if (emsg != NULL) {
(void)vsnprintf(s, sizeof(s), emsg, ap);
sep = ": ";
} else {
s[0] = '\0';
sep = "";
}
if (code)
logit(LOG_CRIT, "fatal in %s: %s%s%s",
log_procname, s, sep, strerror(code));
else
logit(LOG_CRIT, "fatal in %s%s%s", log_procname, sep, s);
}
void
fatal(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vfatalc(errno, emsg, ap);
va_end(ap);
exit(1);
}
void
fatalx(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vfatalc(0, emsg, ap);
va_end(ap);
exit(1);
}

61
sj3serv/log.h Normal file
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@ -0,0 +1,61 @@
/*-
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
*
* 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.
*/
#ifndef LOG_H
#define LOG_H
#include <stdarg.h>
#include <stdlib.h>
#ifndef NO_LOG
void log_init(int, int);
void log_procinit(const char *);
void log_setverbose(int);
int log_getverbose(void);
void log_warn(const char *, ...)
__attribute__((__format__ (printf, 1, 2)));
void log_warnx(const char *, ...)
__attribute__((__format__ (printf, 1, 2)));
void log_info(const char *, ...)
__attribute__((__format__ (printf, 1, 2)));
void log_debug(const char *, ...)
__attribute__((__format__ (printf, 1, 2)));
void logit(int, const char *, ...)
__attribute__((__format__ (printf, 2, 3)));
void vlog(int, const char *, va_list)
__attribute__((__format__ (printf, 2, 0)));
__dead void fatal(const char *, ...)
__attribute__((__format__ (printf, 1, 2)));
__dead void fatalx(const char *, ...)
__attribute__((__format__ (printf, 1, 2)));
#else
#define log_init(x...) do {} while(0)
#define log_procinit(x...) do {} while(0)
#define log_setverbose(x...) do {} while(0)
#define log_getverbose(x...) (0)
#define log_warn(x...) do {} while(0)
#define log_warnx(x...) do {} while(0)
#define log_info(x...) do {} while(0)
#define log_debug(x...) do {} while(0)
#define logit(x...) do {} while(0)
#define vlog(x...) do {} while(0)
#define fatal(x...) exit(1)
#define fatalx(x...) exit(1)
#endif /* NO_LOG */
#endif /* LOG_H */