From 0324daa0055227fdb157b8491d4e5bbe9d9d579a Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 21 Sep 1995 06:24:21 +0000 Subject: Thu Sep 21 00:03:53 1995 Roland McGrath * sysdeps/stub/sys/sem_buf.h (union semun): New type. * sysdeps/mach/hurd/i386/init-first.c (init1) [PIC]: Call __libc_global_ctors. * sysdeps/i386/init-first.c: Rewritten. * sysdeps/unix/sysv/linux/i386/init-first.S: File removed. * sysdeps/unix/sysv/linux/i386/init-first.c: New file. * sysdeps/unix/sysv/linux/i386/fpu_control.h: Fix name in decl of ___fpu_control. * Makerules (build-shlib): New canned sequence, broken out of lib%.so rule. Link in $^ instead of just $<. (lib%.so: lib%_pic.a): Use it. (libc.so): New target; use $(build-shlib) for cmds, but also depend on soinit.so first and sofini.so last. * elf/soinit.c: New file. * elf/sofini.c: New file. * elf/Makefile (distribute): Add soinit.c and sofini.c. (extra-objs): Add soinit.so and sofini.so. * sysvipc/sys/shm.h (shmat): Fix return type to char *. * sysdeps/stub/sys/ipc_buf.h (key_t): Type removed. * misc/syslog.c (vsyslog): Rewritten using open_memstream to dynamically allocate buffers. * Makerules (install-lib-nosubdir): Make this, rather than install-no-libc.a, depend on the installed shared libraries. --- misc/syslog.c | 89 +++++++++++++++++++++++++++-------------------------------- 1 file changed, 41 insertions(+), 48 deletions(-) (limited to 'misc/syslog.c') diff --git a/misc/syslog.c b/misc/syslog.c index ba82e23..ba994ee 100644 --- a/misc/syslog.c +++ b/misc/syslog.c @@ -48,6 +48,7 @@ static char sccsid[] = "@(#)syslog.c 8.4 (Berkeley) 3/18/94"; #include #include #include +#include #if __STDC__ #include @@ -94,11 +95,12 @@ vsyslog(pri, fmt, ap) register const char *fmt; va_list ap; { - register int cnt; - register char ch, *p, *t; time_t now; - int fd, saved_errno; - char *stdp, tbuf[2048], fmt_cpy[1024]; + int fd; + FILE *f; + char *buf = 0; + size_t bufsize = 0; + size_t prioff, msgoff; #define INTERNALLOG LOG_ERR|LOG_CONS|LOG_PERROR|LOG_PID /* Check for invalid bits. */ @@ -112,51 +114,42 @@ vsyslog(pri, fmt, ap) if (!LOG_MASK(LOG_PRI(pri)) & LogMask) return; - saved_errno = errno; - /* Set default facility if none specified. */ if ((pri & LOG_FACMASK) == 0) pri |= LogFacility; - /* Build the message. */ - (void)time(&now); - p = tbuf + sprintf(tbuf, "<%d>", pri); - p += strftime(p, sizeof (tbuf) - (p - tbuf), "%h %e %T ", - localtime(&now)); - if (LogStat & LOG_PERROR) - stdp = p; + /* Build the message in a memory-buffer stream. */ + f = open_memstream (&buf, &bufsize); + prioff = fprintf (f, "<%d>", pri); + (void) time (&now); + f->__bufp += strftime (f->__bufp, f->__put_limit - f->__bufp, + "%h %e %T ", localtime (&now)); + msgoff = ftell (f); if (LogTag == NULL) - LogTag = __progname; + LogTag = __progname; if (LogTag != NULL) - p += sprintf(p, "%s", LogTag); + fputs (LogTag, f); if (LogStat & LOG_PID) - p += sprintf(p, "[%d]", getpid()); - if (LogTag != NULL) { - *p++ = ':'; - *p++ = ' '; - } + fprintf (f, "[%d]", getpid ()); + if (LogTag != NULL) + putc (':', f), putc (' ', f); - /* Substitute error message for %m. */ - for (t = fmt_cpy; ch = *fmt; ++fmt) - if (ch == '%' && fmt[1] == 'm') { - ++fmt; - t += sprintf(t, "%s", strerror(saved_errno)); - } else - *t++ = ch; - *t = '\0'; + /* We have the header. Print the user's format into the buffer. */ + vfprintf (f, fmt, ap); - p += vsprintf(p, fmt_cpy, ap); - cnt = p - tbuf; + /* Close the memory stream; this will finalize the data + into a malloc'd buffer in BUF. */ + fclose (f); /* Output to stderr if requested. */ if (LogStat & LOG_PERROR) { struct iovec iov[2]; register struct iovec *v = iov; - v->iov_base = stdp; - v->iov_len = cnt - (stdp - tbuf); + v->iov_base = buf + msgoff; + v->iov_len = bufsize - msgoff; ++v; - v->iov_base = "\n"; + v->iov_base = (char *) "\n"; v->iov_len = 1; (void)writev(STDERR_FILENO, iov, 2); } @@ -164,22 +157,22 @@ vsyslog(pri, fmt, ap) /* Get connected, output the message to the local logger. */ if (!connected) openlog(LogTag, LogStat | LOG_NDELAY, 0); - if (send(LogFile, tbuf, cnt, 0) >= 0) - return; - - /* - * Output the message to the console; don't worry about blocking, - * if console blocks everything will. Make sure the error reported - * is the one from the syslogd failure. - */ - if (LogStat & LOG_CONS && - (fd = open(_PATH_CONSOLE, O_WRONLY, 0)) >= 0) { - (void)strcat(tbuf, "\r\n"); - cnt += 2; - p = index(tbuf, '>') + 1; - (void)write(fd, p, cnt - (p - tbuf)); + if (send(LogFile, buf, bufsize, 0) < 0) + { + /* + * Output the message to the console; don't worry about blocking, + * if console blocks everything will. Make sure the error reported + * is the one from the syslogd failure. + */ + if (LogStat & LOG_CONS && + (fd = open(_PATH_CONSOLE, O_WRONLY, 0)) >= 0) + { + dprintf (fd, "%s\r\n", buf + msgoff); (void)close(fd); - } + } + } + + free (buf); } static struct sockaddr SyslogAddr; /* AF_UNIX address of local logger */ -- cgit v1.1