installtxt.c

操作系统SunOS 4.1.3版本的源码

		;
	while(p1 > s) {
		if(*--p1 != '/')
			break;
		*p1 = 0;
	}

	/* Find last component of path; do not zap the path */
	p2 = s;
	for(p1 = s; *p1; p1++)
		if(*p1 == '/')
			p2 = p1+1;

	/*
	 * Truncate name if too long, only if we are doing an 'add'
	 * type operation. We only allow 15 cause rest of ar
	 * isn't smart enough to deal with non-null terminated
	 * names.  Need an exit status convention...
	 * Need yet another new archive format...
	 */
	if (truncate && strlen(p2) > sizeof(arbuf.ar_name) - 1) {
		if (verb) fprintf(stderr, "installtxt: filename %s truncated to ", p2);
		p2 = strncpy(trimmedname,p2,sizeof(arbuf.ar_name) - 1);
		*(p2 + sizeof(arbuf.ar_name) - 1) = '\0';
		if (verb) fprintf(stderr, "%s\n", p2);
	}
	return(p2);
}

#define	IFMT	060000
#define	ISARG	01000
#define	SUID	04000
#define	SGID	02000
#define	ROWN	0400
#define	WOWN	0200
#define	XOWN	0100
#define	RGRP	040
#define	WGRP	020
#define	XGRP	010
#define	ROTH	04
#define	WOTH	02
#define	XOTH	01
#define	STXT	01000

longt()
{
	register char *cp;

	pmode();
	printf("%3d/%1d", larbuf.lar_uid, larbuf.lar_gid);
	printf("%7ld", larbuf.lar_size);
	cp = ctime(&larbuf.lar_date);
	printf(" %-12.12s %-4.4s ", cp+4, cp+20);
}

int	m1[] = { 1, ROWN, 'r', '-' };
int	m2[] = { 1, WOWN, 'w', '-' };
int	m3[] = { 2, SUID, 's', XOWN, 'x', '-' };
int	m4[] = { 1, RGRP, 'r', '-' };
int	m5[] = { 1, WGRP, 'w', '-' };
int	m6[] = { 2, SGID, 's', XGRP, 'x', '-' };
int	m7[] = { 1, ROTH, 'r', '-' };
int	m8[] = { 1, WOTH, 'w', '-' };
int	m9[] = { 2, STXT, 't', XOTH, 'x', '-' };

int	*m[] = { m1, m2, m3, m4, m5, m6, m7, m8, m9};

pmode()
{
	register int **mp;

	for (mp = &m[0]; mp < &m[9];)
		select(*mp++);
}

select(pairp)
int *pairp;
{
	register int n, *ap;

	ap = pairp;
	n = *ap++;
	while (--n>=0 && (larbuf.lar_mode&*ap++)==0)
		ap++;
	putchar(*ap);
}

wrerr()
{
	perror("installtxt: write error");
	done(1);
}
/*
 * Scan Source message file and output to a temporary file
 */

msg_build(fd)
int fd;
{
	register int i, j;
	unsigned char c;
	int linecount;
	char *obj1name, *obj2name;
	FILE *inputf;
	char tmparr[1]; 
	struct msg_header msg_header;
	char buf[BUFSIZE];	
	tmparr[0] = '\0';

	/* Open up two temporary files. tf1 will contain the member file header 
	 * information that gettext() will actually use in its runtime
	 * structures. tf2 will contain the concatenated target strings, either 
	 * strings or both tag and string depending on current value 
	 * of format string. When source file is exhausted we will merge
	 * back these two files.
	 */

	obj1name = mktemp(tmp1nam);
	close(creat(obj1name, 0600));
	tf1 = open(obj1name, 2);
	if(tf1 < 0) {
		fprintf(stderr, "installtxt: cannot create temp file\n");
	        done(1);
	}

	/* Put out a blank index header, which is overwritten with real
	 * values later one. 
	 */

	write(tf1, &msg_header, sizeof(struct msg_header)); 

	obj2name = mktemp(tmp2nam);
	close(creat(obj2name, 0600));
	tf2 = open(obj2name, 2);
	if(tf2 < 0) {
		fprintf(stderr, "installtxt: cannot create temp file\n");
	        done(1);
	}

	cur_address = 0; /* used from index section as relative offset 
			  * into target messages
			  */
	countofrecords = 0; /* output later in msg_header struct */

	inputf = fdopen(fd, "r");
	linecount = 0;

	/* The default separator is a space character */

	arbuf.ar_sep = pattern[3] = ' ';

	/* The default format of message tag is a regular string */

	format_type = STR;
	arbuf.ar_quote = 0;
	while (fgets(linebuf, MAXTAGLEN+MAXMSGLEN+4, inputf) != 0){
		linecount++;
		if ((i = skip_blanks(linebuf, 0)) == -1)
			continue;
	
		if (linebuf[i] == '$'){
			i++;
			/*
	       		 * Handle commands or comments
	       		 */
			if (strncmp(&linebuf[i], CMD_DOMAIN, CMD_DOMAIN_LEN) == 0){
				i += CMD_DOMAIN_LEN+1;
	
				/*
	         		 * Change domain
	         		 */

				strcpy(domain, &linebuf[i]);
				continue;
			}
			if (strncmp(&linebuf[i], CMD_SEP, CMD_SEP_LEN) == 0){
				i += CMD_SEP_LEN;
	
				/*
	         		 * Use a new separator character
	         		 */
	
				if ((c =linebuf[i+1]) == '\n')
					c = ' ';
				arbuf.ar_sep = pattern[3] = c;
				continue;
			}
			if (strncmp(&linebuf[i], CMD_QUOTE, CMD_QUOTE_LEN) == 0){
				i += CMD_QUOTE_LEN;
	
				/*
	         		 * Change quote character
	         		 */
	
				if ((i = skip_blanks(linebuf, i)) == -1)
					arbuf.ar_quote = 0;
				else
					arbuf.ar_quote  = linebuf[i];
				continue;
			}
			if (strncmp(&linebuf[i], CMD_FORMAT, CMD_FORMAT_LEN) == 0){
				i += CMD_FORMAT_LEN+1;
				while(linebuf[i] != '%' && linebuf[i] !=
0 )
					i++;
				
				if (linebuf[i] == 0) {
					fprintf(stderr, "Format string error on line %d\n", linecount);
					done(1);
				}
	
				if (strlen(&linebuf[i]) > MAXFMTS) {
					fprintf(stderr, "Format string too long at line %d\n", linecount);
					done(1);
				}	
				strcpy(format, &linebuf[i]);
				j=1;
				while (isdigit(format[j]))
					j++;
				if (format[j] != '[' & format[j] != 's')
					format_type = INT;
				else
					format_type = STR;
				
				continue;
			}
	
			/*
	       		 * Everything else is a comment
	       		 */
			continue;
		}
		if (linebuf[i] == '\\' && linebuf[i+1] == '$')
			/* We are escaping a message tag that actually uses
			 * $ as a first character !
			 */
			i++;

      

		/* Join up any newline escaped lines */

		while (strcmp(&linebuf[strlen(linebuf)-2],"\\\n") == 0) {
			linecount++;
			if (fgets(&linebuf[strlen(linebuf)-2], MAXTAGLEN+MAXMSGLEN+4, inputf) == 0) {
				fprintf(stderr, "line continuation expected on line %d\n",
				  	linecount);
				done(1);
			}


			if (strlen(linebuf) > MAXTAGLEN+MAXMSGLEN+4) {
				fprintf(stderr, "line too long: line %d\n", linecount);
				done(1);
			}
		}	
		if (arbuf.ar_quote != 0) {

			/*
			 * Quote character is the anchor point 
			 * for message text and message tag portion
			 */
			j=i+1;
			if (linebuf[i] == arbuf.ar_quote) {
				while(linebuf[j] != arbuf.ar_quote && linebuf[j] != 0) {
					if (linebuf[j] == '\\')
						j++;
					j++;
				}
			} else {
				while(!isspace(linebuf[j]))
					j++; 
				--i;
			}
			linebuf[j] = 0;
			strcpy(message_tag, &linebuf[i+1]);
#ifdef DEBUG
			fprintf(stderr,"just copied TAG %s \n", message_tag);
#endif
			i=j+1;
			while(linebuf[i] != arbuf.ar_quote && linebuf[i] !=
0)
                                i++;
                        j=i+1;
                        while(linebuf[j] != arbuf.ar_quote && linebuf[j] !=
0) {
				if (linebuf[j] == '\\')
					j++;
                                j++;
			}
			linebuf[j] = 0;
                        strcpy(message_text, &linebuf[i+1]);
#ifdef DEBUG
                        fprintf(stderr,"just copied TEXT %s \n", message_text);	
#endif
		} else 
			if (sscanf(&linebuf[i], pattern, message_tag, message_text) != 2) {
				fprintf(stderr, "Bad message-tag syntax at line %d\n", linecount);
				done(1);
			}
	
		/* Now do the real work of compiling in the new
		 * line into the message archive file. This work is done
	 	 * inside a member archive file.
		 */
		
		addentry(tf1, tf2);
	}

	/*
	 * Get the real size of the archive member file in object
	 * form and replace this value in the member file header
	 */

	stbuf.st_size = lseek(tf1, 0, L_INCR) + lseek(tf2, 0, L_INCR);
	sprintf(arbuf.ar_size,"%-10ld", stbuf.st_size);
	
	/* Now reset size to be real, for copyfil */
	larbuf.lar_size = lseek(tf1, 0, L_INCR);

	/* rewind the object member file, ready for assembly into 
	 * the final archive. Copyfil will place this file in the 
	 * correct place within the archive
	 */

	msg_header.maxno = countofrecords;
	msg_header.ptr = lseek(tf1, 0, L_INCR);
	msg_header.format_type = format_type;
	msg_header.format[MAXFMTS-1] = '!';
	strcpy(msg_header.format, format);
	if (lseek(tf1, 0, L_SET) == -1) {
		fprintf("installtxt: Error in reading temp file\n");
		done(1);
	}
	write(tf1, &msg_header, sizeof(struct msg_header)); 
	if (lseek(tf1, 0, L_SET) == -1) {
		fprintf("installtxt: Error in reading temp file\n");
		done(1);
	}
	if (lseek(tf2, 0, L_SET) == -1) {
		fprintf("installtxt: Error in reading temp file\n");
		done(1);
	}
	/* Note this outputs the archive header too */
	copyfil(tf1, tf, HEAD);

	/* Dont put any fluff between hdr and tail here! */

	while ((i = read(tf2, buf, BUFSIZE)) > 0)
		write(tf, buf, i);

	/* get rid of temp files */

	close(tf1); unlink(obj1name);
	close(tf2); unlink(obj2name);
	fclose(inputf);
	
}


/*
 * Skip blanks in a line buffer
 */

skip_blanks(linebuf, i)
char *linebuf;
int i;
{
	while (linebuf[i] && isspace(linebuf[i]) && !iscntrl(linebuf[i]))
		i++;
	if (!linebuf[i] || linebuf[i] == '\n')
		return -1;
	return i;
}

addentry(hdr, tail)
int hdr, tail;

{
char 	str[MAXTAGLEN+MAXMSGLEN+4];
struct 	index	index;
short 	arrays;
char 	*op, *cp;
unsigned char 	c;

/* This is simple flat file, use hashing later */

op=str;
arrays = 0;
for (cp=message_tag; arrays < 2;cp=message_text) {

	arrays++;
	while ((c = *(cp++)) != 0) {
		switch(c) {
		case '\\':
			c = *(cp++);
			switch(c) {
			case 'n':  
				c = '\n'; 
				break;
			case 'r':  
				c = '\r'; 
				break;
			case 'b':  
				c = '\b'; 
				break;
			case 't':  
				c = '\t'; 
				break;
			case 'v':  
				c = '\v'; 
				break;
			case 'f':  
				c = '\f'; 
				break;
			case '\\': 
				c = '\\'; 
				break;
			case '\'': 
				c = '\''; 
				break;
			case '\"': 
				c = '\"'; 
				break;
			default:
				if (isdigit(c)) {
					c = (int) strtol((cp-1), &cp, 8); 
				}
			}
			
		/* a plain 'ole input character */
		
		default:
			*op++ = c;
		}
	}
	
	/* A null separates the message tag and message text here */

	*op++ = 0;
	if (arrays == 1) {
		/* output the index */
		countofrecords++;
		if (format_type == INT)
			sscanf(str, format, &index.msgnumber);
		else
			index.msgnumber = 0;
		index.rel_addr = cur_address;
#ifdef DEBUG
		fprintf(stderr, "writing %d bytes to temp1\n", write(hdr, &index, sizeof (struct index) ));
#else
		write(hdr, &index, sizeof(struct index));
#endif
	} else {
#ifdef DEBUG
		fprintf(stderr, "writing %d bytes to temp2\n", op-str);
#endif
		if (format_type == STR) {

			/* write both tag and target string */

			write(tail, str, op-str);
			cur_address += op-str;
		} else {

			/* only write the target string */

			op=str+strlen(str) + 1;
#ifdef DEBUG
			fprintf(stderr,"writing %d bytes for int lookup\n",strlen(op)+1);
#endif
			write(tail, op, strlen(op) + 1);
			cur_address += strlen(op) +1;
		}
	}
}
}



msg_extract(f)
register int f; 
{	
	FILE *tempf;
	register short i;
	register short ch;
	
	/* here we create a temp file, copy the 
	 * whole member file to it. then we remove init();
	 */
	init();
	copyfil(af, tf, 0);
	lseek(tf, 0, L_SET);
	tempf = fdopen(tf, "r");
	if (fseek(tempf, SARMAG, 0) == -1) {
		fprintf("installtxt: seek error in tmp file\n");
		done(1);
	}
	if (larbuf.lar_quote != 0) {
		sprintf(buf,"$quote %c\n", larbuf.lar_quote);
		write(f, buf, 9);
	}
	if (larbuf.lar_sep != ' ') {
		sprintf(buf,"$separator %c\n", larbuf.lar_sep);
		write(f, buf, 13);
	}
	if (domain[0] != 0) {
		sprintf(buf, "$domain %s\n\n", domain);
		write(f, buf, 11 + strlen(domain));
	}
	sscanf(arbuf.ar_size, "%ld", &charsleft);

	/* There are two spare nulls at end of member file entry in the 
	 * archive
	 */

	while (charsleft > 2) {
		i = 0;
		while ((ch = getc(tempf)) != 0 && ch != EOF) {
			i+= expandesc(message_tag+i, ch);
		}
		if (ch == -1)
			break;
		message_tag[i] = 0;
		i = 0;
		while ((ch = getc(tempf)) != 0 && ch != EOF) {
			i+= expandesc(message_text+i, ch);
		}
		if (ch == -1)
			break;
		message_text[i] = 0;
		sprintf(buf,"%s%c", message_tag, arbuf.ar_sep);
		write(f, buf, 1 + strlen(message_tag));
		if (larbuf.lar_quote != 0) {
			sprintf(buf,"%c%s%c\n", larbuf.lar_quote,
				message_text, larbuf.lar_quote);
			write(f, buf, 3 + strlen(message_text));
		} else {
			sprintf(buf,"%s\n", message_text);
			write(f, buf, 1 + strlen(message_text));
		}
	}
	fclose(tempf); unlink(tfnam);
}


main(argc, argv)
char *argv[];
{
	register i;
	register char *cp;

	setlocale(LC_CTYPE,""); 
	for(i=0; signum[i]; i++)
		if(signal(signum[i], SIG_IGN) != SIG_IGN)
			signal(signum[i], sigdone);
	if(argc < 3)
		usage();
	cp = argv[1];
	if (*cp == '-')	/* skip a '-', make ar more like other commands */
		cp++;
	for(; *cp; cp++)
	switch(*cp) {
	case 'o':
	case 'v':
	case 'u':
		flg[*cp - 'a']++;
		continue;

	case 'r':
		setcom(rcmd);
		continue;

	case 'd':
		setcom(dcmd);
		continue;

	case 'x':
		setcom(xcmd);
		continue;

	case 't':
		setcom(tcmd);
		continue;

	case 'c':
		setcom(ccmd);
		continue;

	default:
		fprintf(stderr, "installtxt: bad option `%c'\n", *cp);
		done(1);
	}
	arnam = argv[2];
	namv = argv+3;
	namc = argc-3;
	if(comfun == 0) {
		if(flg['u'-'a'] == 0) {
			fprintf(stderr, "installtxt: one of [%s] must be specified\n", man);
			done(1);
		}
		setcom(rcmd);
	}
	(*comfun)();
	done(notfound());
	/* NOTREACHED */
}