installtxt.c

操作系统SunOS 4.1.3版本的源码

/* 
 * Installtxt - installs and maintains archives of message strings
 * which are subsequently used by the gettext() utility.
 * Version of /usr/group proposal 12th Oct 88.
 *
 */

#ifndef lint
static char *sccsid = "@(#)installtxt.c 1.1 92/07/30 SMI";
#endif not lint

/*
 * installtxt. Utility to install and maintain archives of message 
 * text.
 * If any of the message archive data structures change here 
 * then they must change in gettext() also
 */

#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <locale.h>
#include <signal.h>
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/file.h>
#include "gettext.h"

#define	ARMAG	"!<LC_MESSAGES>\n"
#define ARFMAG  "`\n"
#define	SARMAG	15
#define SKIP    1
#define IODD    2
#define OODD    4
#define HEAD    8
#define	MAXTAGLEN		127
#define MAXMSGLEN		255
#define CMD_DOMAIN		"domain"
#define CMD_DOMAIN_LEN		6
#define CMD_SEP			"separator"
#define CMD_SEP_LEN		9
#define CMD_QUOTE		"quote"
#define CMD_QUOTE_LEN		5
#define CMD_FORMAT		"format"
#define CMD_FORMAT_LEN		6
#define BUFSIZE			512

struct	stat	stbuf;
struct	ar_hdr	arbuf;
struct	lar_hdr {
	unsigned char	lar_name[16];
	long	lar_date;
	u_short	lar_uid;
	u_short	lar_gid;
	u_short	lar_mode;
	long	lar_size;
	unsigned char lar_sep;
	unsigned char lar_quote;
} larbuf;

char	*man	=	{ "cdrtx" };
char	*opt	=	{ "ouv" };

char 	linebuf[MAXTAGLEN+MAXMSGLEN+4];
char 	message_tag[MAXTAGLEN+1];
char 	message_text[MAXMSGLEN+1];
char 	domain[MAXDOMAIN+1];
char 	format[MAXFMTS+1] = "";
short 	format_type;
int	countofrecords;
long 	charsleft;
char 	pattern[15] = "%[^ ]%*c%[^\n]";
int	signum[] = {SIGHUP, SIGINT, SIGQUIT, 0};
int	sigdone();
long	lseek();
int	rcmd();
int	dcmd();
int	xcmd();
int	tcmd();
int	ccmd();
int	(*comfun)();
char	flg[26];
char	**namv;
int	namc;
char	*arnam;
char	*tmpfnam	=	{ "/tmp/vXXXXXX" };
char	*tmp1nam	=	{ "/tmp/v1XXXXXX" };
char	*tmp2nam	=	{ "/tmp/v2XXXXXX" };
char	*tfnam;
char	*tf1nam;
char	*tf2nam;
char	*file;
char	name[16];
int	af;
int	tf;
int	tf1;
int	tf2;
int	qf;
int	bastate;
char	buf[MAXBSIZE];
int	truncate;			/* ok to truncate argument filenames */
int	cur_address;

char	*trim();
char	*mktemp();
char	*ctime();
char	*strncpy();


/* This routine will fill up the output buffer pointed to by buff
 * with the escape expanded string, ready for human consumption
 * TODO : need notion of line length to do backslash-newline sequence
 *	if necessary on output
 */

short expandesc(buff, ch)
char *buff; unsigned short ch; 
{

	switch (ch) {
	case '\n':
	        *buff = '\\';
		*(buff+1) = 'n';
		return 2;
	case '\r':
	        *buff = '\\';
	        *(buff+1) = 'r';
		return 2;
	case '\b':
	        *buff = '\\';
	        *(buff+1) = 'b';
		return 2;
	case '\t':
	        *buff = '\\';
	        *(buff+1) = 't';
		return 2;
	case '\v':
	        *buff = '\\';
	        *(buff+1) = 'v';
		return 2;
	case '\f':
	        *buff = '\\';
	        *(buff+1) = 'f';
		return 2;
	case '\\':
	        *buff = '\\';
		*(buff+1) = '\\';
		return 2;
	case '\'':
	        *buff = '\\';
		*(buff+1) = '\'';
		return 2;
	case '\"':
	        *buff = '\\';
	        *(buff+1) = '\"';
		return 2;
	default:
		*buff = ch;
		return 1;
	}
}


setcom(fun)
int (*fun)();
{

	if(comfun != 0) {
		fprintf(stderr, "installtxt: only one of [%s] allowed\n", man);
		done(1);
	}
	comfun = fun;
}

rcmd()
{
	register f;

	truncate++;
	init();
	getaf();
	while(!getdir()) {
		if(namc == 0 || match()) {
			f = stats();
			if(f < 0) {
				if(namc)
					fprintf(stderr, "installtxt: cannot open %s\n", file);
				goto cp;
			}
			if(flg['u'-'a'])
				if(stbuf.st_mtime <= larbuf.lar_date) {
					close(f);
					goto cp;
				}
			mesg('r');
			copyfil(af, -1, SKIP);
			movefil(f);
			continue;
		}
	cp:
		mesg('c');
		copyfil(af, tf, HEAD);
	}
	cleanup();
}

ccmd() {
	rcmd();
}

dcmd()
{

	init();
	if(getaf())
		noar();
	while(!getdir()) {
		if(match()) {
			mesg('d');
			copyfil(af, -1, SKIP);
			continue;
		}
		mesg('c');
		copyfil(af, tf, HEAD);
	}
	install();
}

xcmd()
{
	register f;
	register short i;
	struct timeval tv[2];
	unsigned char buf[10];
	FILE *tempf;

	if(getaf())
		noar();
	while(!getdir()) {
		if(namc == 0 || match()) {
			f = open(file, O_RDWR | O_CREAT, larbuf.lar_mode & 0777);

			if(f < 0) {
				perror(file); 
				goto sk;
			}
			mesg('x');

			msg_extract(f);
			close(tf);
			close(f);
			if (flg['o'-'a']) {
				tv[0].tv_sec = tv[1].tv_sec = larbuf.lar_date;
				tv[0].tv_usec = tv[1].tv_usec = 0;
				utimes(file, tv);
			}
			continue;
		}
	sk:
		mesg('c');
		copyfil(af, -1, SKIP); 
		
		if (namc > 0  &&  !morefil())
			done(0);
	}
}


tcmd()
{

	if(getaf())
		noar();
	while(!getdir()) {
		if(namc == 0 || match()) {
			if(flg['v'-'a'])
				longt();
			printf("%s\n", trim(file, 0));
		}
		copyfil(af, -1, SKIP);
	}
}


init()
{

	tfnam = mktemp(tmpfnam);
	close(creat(tfnam, 0600));
	tf = open(tfnam, 2);
	if(tf < 0) {
		fprintf(stderr, "installtxt: cannot create temp file\n");
		done(1);
	}
	if (write(tf, ARMAG, SARMAG) != SARMAG)
		wrerr();
}

getaf()
{
	char mbuf[SARMAG];

	af = open(arnam, 0);
	if(af < 0)
		return(1);
	if (read(af, mbuf, SARMAG) != SARMAG || strncmp(mbuf, ARMAG, SARMAG)) {
		fprintf(stderr, "installtxt: %s not in message archive format\n", arnam);
		done(1);
	}
	return(0);
}

getqf()
{
	char mbuf[SARMAG];

	if ((qf = open(arnam, 2)) < 0) {
		if(!flg['c'-'a'])
			fprintf(stderr, "installtxt: creating %s\n", arnam);
		if ((qf = creat(arnam, 0666)) < 0) {
			fprintf(stderr, "installtxt: cannot create %s\n", arnam);
			done(1);
		}
		if (write(qf, ARMAG, SARMAG) != SARMAG)
			wrerr();
	} else if (read(qf, mbuf, SARMAG) != SARMAG
		|| strncmp(mbuf, ARMAG, SARMAG)) {
		fprintf(stderr, "installtxt: %s not in message archive format\n", arnam);
		done(1);
	}
}        
usage()
{
	fprintf(stderr, "usage: installtxt [%s][%s] source-message-files ...\n", man, opt);
	done(1);
}

noar()
{

	fprintf(stderr, "installtxt: %s does not exist\n", arnam);
	done(1);
}

sigdone()
{
	done(100);
}

done(c)
{

	if(tfnam)
		unlink(tfnam);
	if(tf1nam)
		unlink(tf1nam);
	if(tf2nam)
		unlink(tf2nam);
	exit(c);
}

notfound()
{
	register i, n;

	n = 0;
	for(i=0; i<namc; i++)
		if(namv[i]) {
			fprintf(stderr, "installtxt: %s not found\n", namv[i]);
			n++;
		}
	return(n);
}

morefil()
{
	register i, n;

	n = 0;
	for(i=0; i<namc; i++)
		if(namv[i])
			n++;
	return(n);
}

cleanup()
{
	register i, f;

	truncate++;
	for(i=0; i<namc; i++) {
		file = namv[i];
		if(file == 0)
			continue;
		namv[i] = 0;
		mesg('a');
		f = stats();
		if(f < 0) {
			fprintf(stderr, "installtxt: %s cannot open\n", file);
			continue;
		}
		movefil(f);
	}
	install();
}

install()
{
	register i;

	for(i=0; signum[i]; i++)
		signal(signum[i], SIG_IGN);
	if(af < 0)
		if(!flg['c'-'a'])
			fprintf(stderr, "installtxt: creating %s\n", arnam);
	close(af);
	af = creat(arnam, 0666);
	if(af < 0) {
		fprintf(stderr, "installtxt: cannot create %s\n", arnam);
		done(1);
	}
	if(tfnam) {
		lseek(tf, 0l, 0);
		while((i = read(tf, buf, MAXBSIZE)) > 0)
			if (write(af, buf, i) != i)
				wrerr();
	}
	if(tf2nam) {
		lseek(tf2, 0l, 0);
		while((i = read(tf2, buf, MAXBSIZE)) > 0)
			if (write(af, buf, i) != i)
				wrerr();
	}
	if(tf1nam) {
		lseek(tf1, 0l, 0);
		while((i = read(tf1, buf, MAXBSIZE)) > 0)
			if (write(af, buf, i) != i)
				wrerr();
	}
}

/*
 * insert the file 'file'
 * into the archive temporary file
 */
movefil(f)
{
	char buf[sizeof(arbuf)+1];

	sprintf(buf, "%-16s%-12ld%-6u%-6u%-8o%-10ld%2c%1c%-2s",
	   trim(file, 1),
	   stbuf.st_mtime,
	   (u_short)stbuf.st_uid,
	   (u_short)stbuf.st_gid,
	   stbuf.st_mode,
	   stbuf.st_size,
	   larbuf.lar_sep,
	   larbuf.lar_quote,
	   ARFMAG);
	memcpy((char *)&arbuf, buf, sizeof(arbuf));
	larbuf.lar_size = stbuf.st_size;
	msg_build(f);

	/* Copy the new binary archive format into place in the archive file 
	 * keep old statistics as if the source file is being represented.
	 */

	close(f); 
}

stats()
{
	register f;

	f = open(file, 0);
	if(f < 0)
		return(f);
	if(fstat(f, &stbuf) < 0) {
		close(f);
		return(-1);
	}
	return(f);
}

/*
 * copy next file
 * size given in arbuf
 */
copyfil(fi, fo, flag)
{
	register i, o;
	int pe;

	if(flag & HEAD) {
		for (i=sizeof(arbuf.ar_name)-1; i>=0; i--) {
			if (arbuf.ar_name[i]==' ')
				continue;
			else if (arbuf.ar_name[i]=='\0')
				arbuf.ar_name[i] = ' ';
			else
				break;
		}
		if (write(fo, (char *)&arbuf, sizeof arbuf) != sizeof arbuf)
			wrerr();
	}
	pe = 0;
	while(larbuf.lar_size > 0) {
		i = o = MAXBSIZE;
		if(larbuf.lar_size < i) {
			i = o = larbuf.lar_size;
			if(i&1) {
				buf[i] = '\n';
				if(flag & IODD)
					i++;
				if(flag & OODD)
					o++;
			}
		}
		if(read(fi, buf, i) != i)
			pe++;
		if((flag & SKIP) == 0)
			if (write(fo, buf, o) != o)
				wrerr();
		larbuf.lar_size -= MAXBSIZE;
	}
	if(pe)
		phserr();
}

getdir()
{
	register unsigned char *cp;
	register i;

	i = read(af, (char *)&arbuf, sizeof arbuf);
	if(i != sizeof arbuf) {
		if(tf1nam) {
			i = tf;
			tf = tf1;
			tf1 = i;
		}
		return(1);
	}
	if (strncmp(arbuf.ar_fmag, ARFMAG, sizeof(arbuf.ar_fmag))) {
		fprintf(stderr, "installtxt: malformed message archive (at %ld)\n", lseek(af, 0L, 1));
		done(1);
	}
	cp = arbuf.ar_name + sizeof(arbuf.ar_name);
	while (*--cp==' ')
		;
	if (*cp == '/')
		*cp = '\0';
	else
		*++cp = '\0';
	strncpy(name, arbuf.ar_name, sizeof(arbuf.ar_name));
	file = name;
	strncpy(larbuf.lar_name, name, sizeof(larbuf.lar_name));
	sscanf(arbuf.ar_date, "%ld", &larbuf.lar_date);
	sscanf(arbuf.ar_uid, "%hd", &larbuf.lar_uid);
	sscanf(arbuf.ar_gid, "%hd", &larbuf.lar_gid);
	sscanf(arbuf.ar_mode, "%ho", &larbuf.lar_mode);
	sscanf(arbuf.ar_size, "%ld", &larbuf.lar_size);
	larbuf.lar_sep = arbuf.ar_sep;
	larbuf.lar_quote = arbuf.ar_quote;
	return(0);
}

     
match()
{
	register i;

	for(i=0; i<namc; i++) {
		if(namv[i] == 0)
			continue;
		if(strcmp(trim(namv[i], 0), file) == 0) {
			file = namv[i];
			namv[i] = 0;
			return(1);
		}
	}
	return(0);
}


phserr()
{

	fprintf(stderr, "installtxt: phase error on %s\n", file);
}

mesg(c)
{

	if(flg['v'-'a'])
		if(c != 'c' || flg['v'-'a'] > 1)
			printf("%c - %s\n", c, file);
}

char *
trim(s, verb)
char *s;
{
	register char *p1, *p2;
	static char trimmedname[sizeof(arbuf.ar_name)];

	/* Strip trailing slashes */
	for(p1 = s; *p1; p1++)