src/cal/lam.c

#ifndef lint
static const char       RCSid[] = "$Id: lam.c,v 1.13 2014/02/11 17:05:00 greg Exp $";
#endif
/*
 *  lam.c - simple program to laminate files.
 *
 *      7/14/88         Greg Ward
 */

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>

#include "platform.h"
#include "rtprocess.h"

#define MAXFILE         512             /* maximum number of files */

#define MAXLINE         65536           /* maximum input line */

FILE    *input[MAXFILE];
int     bytsiz[MAXFILE];
char    *tabc[MAXFILE];
int     nfiles;

char    buf[MAXLINE];

int
main(argc, argv)
int     argc;
char    *argv[];
{
        int     unbuff = 0;
        int     binout = 0;
        int     i;
        char    *curtab;
        int     curbytes;
        int     puteol;

        curtab = "\t";
        curbytes = 0;
        nfiles = 0;
        for (i = 1; i < argc; i++) {
                if (argv[i][0] == '-') {
                        switch (argv[i][1]) {
                        case 't':
                                curtab = argv[i]+2;
                                break;
                        case 'u':
                                unbuff = !unbuff;
                                break;
                        case 'i':
                                switch (argv[i][2]) {
                                case 'f':
                                        curbytes = sizeof(float);
                                        break;
                                case 'd':
                                        curbytes = sizeof(double);
                                        break;
                                case 'i':
                                        curbytes = sizeof(int);
                                        break;
                                case 'w':
                                        curbytes = 2;
                                        break;
                                case 'b':
                                        curbytes = 1;
                                        break;
                                case 'a':
                                        curbytes = argv[i][3] ? -1 : 0;
                                        break;
                                default:
                                        goto badopt;
                                }
                                if (isdigit(argv[i][3]))
                                        curbytes *= atoi(argv[i]+3);
                                if (abs(curbytes) > MAXLINE) {
                                        fputs(argv[0], stderr);
                                        fputs(": input size too big\n", stderr);
                                        exit(1);
                                }
                                if (curbytes) {
                                        curtab = "";
                                        ++binout;
                                }
                                break;
                        case '\0':
                                tabc[nfiles] = curtab;
                                input[nfiles] = stdin;
                                if (curbytes > 0)
                                        SET_FILE_BINARY(input[nfiles]);
                                else
                                        curbytes = -curbytes;
                                bytsiz[nfiles++] = curbytes;
                                break;
                        badopt:;
                        default:
                                fputs(argv[0], stderr);
                                fputs(": bad option\n", stderr);
                                exit(1);
                        }
                } else if (argv[i][0] == '!') {
                        tabc[nfiles] = curtab;
                        if ((input[nfiles] = popen(argv[i]+1, "r")) == NULL) {
                                fputs(argv[i], stderr);
                                fputs(": cannot start command\n", stderr);
                                exit(1);
                        }
                        if (curbytes > 0)
                                SET_FILE_BINARY(input[nfiles]);
                        else
                                curbytes = -curbytes;
                        bytsiz[nfiles++] = curbytes;
                } else {
                        tabc[nfiles] = curtab;
                        if ((input[nfiles] = fopen(argv[i], "r")) == NULL) {
                                fputs(argv[i], stderr);
                                fputs(": cannot open file\n", stderr);
                                exit(1);
                        }
                        if (curbytes > 0)
                                SET_FILE_BINARY(input[nfiles]);
                        else
                                curbytes = -curbytes;
                        bytsiz[nfiles++] = curbytes;
                }
                if (nfiles >= MAXFILE) {
                        fputs(argv[0], stderr);
                        fputs(": too many input streams\n", stderr);
                        exit(1);
                }
        }
        if (binout)                             /* binary output? */
                SET_FILE_BINARY(stdout);
#ifdef getc_unlocked                            /* avoid lock/unlock overhead */
        for (i = nfiles; i--; )
                flockfile(input[i]);
        flockfile(stdout);
#endif
        puteol = 0;                             /* check for ASCII output */
        for (i = nfiles; i--; )
                if (!bytsiz[i] || isprint(tabc[i][0]) || tabc[i][0] == '\t') {
                        puteol++;
                        break;
                }
        for ( ; ; ) {                           /* main loop */
                for (i = 0; i < nfiles; i++) {
                        if (bytsiz[i]) {                /* binary file */
                                if (fread(buf, bytsiz[i], 1, input[i]) < 1)
                                        break;
                                if (i)
                                        fputs(tabc[i], stdout);
                                fwrite(buf, bytsiz[i], 1, stdout);
                        } else {
                                if (fgets(buf, MAXLINE, input[i]) == NULL)
                                        break;
                                if (i)
                                        fputs(tabc[i], stdout);
                                buf[strlen(buf)-1] = '\0';
                                fputs(buf, stdout);
                        }
                }
                if (i < nfiles)
                        break;
                if (puteol)
                        putchar('\n');
                if (unbuff)
                        fflush(stdout);
        }
        return(0);
}
Revision:	1.14
Committed:	Sun Mar 9 20:07:27 2014 UTC (10 years, 1 month ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad4R2P2, rad5R0, rad4R2, rad4R2P1
Changes since 1.13:	+12 -2 lines
Log Message:	Added flockfile calls and fixed SET_FILE_BINARY usage for consistency
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	1.14	static const char RCSid[] = "$Id: lam.c,v 1.13 2014/02/11 17:05:00 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* lam.c - simple program to laminate files.
6			*
7			* 7/14/88 Greg Ward
8			*/
9
10	schorsch	1.2	#include <stdlib.h>
11			#include <string.h>
12	greg	1.1	#include <stdio.h>
13	greg	1.7	#include <ctype.h>
14	schorsch	1.2
15			#include "platform.h"
16	schorsch	1.3	#include "rtprocess.h"
17	greg	1.1
18	greg	1.7	#define MAXFILE 512 /* maximum number of files */
19	greg	1.1
20	greg	1.13	#define MAXLINE 65536 /* maximum input line */
21	greg	1.1
22			FILE *input[MAXFILE];
23	greg	1.7	int bytsiz[MAXFILE];
24	greg	1.6	char *tabc[MAXFILE];
25	greg	1.1	int nfiles;
26
27			char buf[MAXLINE];
28
29	schorsch	1.4	int
30	greg	1.1	main(argc, argv)
31			int argc;
32			char *argv[];
33			{
34	greg	1.11	int unbuff = 0;
35	greg	1.14	int binout = 0;
36	greg	1.11	int i;
37	greg	1.6	char *curtab;
38	greg	1.7	int curbytes;
39	greg	1.11	int puteol;
40	greg	1.1
41	greg	1.6	curtab = "\t";
42	greg	1.7	curbytes = 0;
43	greg	1.1	nfiles = 0;
44			for (i = 1; i < argc; i++) {
45			if (argv[i][0] == '-') {
46			switch (argv[i][1]) {
47			case 't':
48	greg	1.6	curtab = argv[i]+2;
49	greg	1.1	break;
50	greg	1.11	case 'u':
51			unbuff = !unbuff;
52			break;
53	greg	1.7	case 'i':
54			switch (argv[i][2]) {
55			case 'f':
56			curbytes = sizeof(float);
57			break;
58			case 'd':
59			curbytes = sizeof(double);
60			break;
61	greg	1.10	case 'i':
62			curbytes = sizeof(int);
63			break;
64	greg	1.7	case 'w':
65	greg	1.10	curbytes = 2;
66			break;
67			case 'b':
68			curbytes = 1;
69	greg	1.7	break;
70			case 'a':
71	greg	1.12	curbytes = argv[i][3] ? -1 : 0;
72	greg	1.7	break;
73			default:
74			goto badopt;
75			}
76			if (isdigit(argv[i][3]))
77			curbytes *= atoi(argv[i]+3);
78	greg	1.12	if (abs(curbytes) > MAXLINE) {
79	greg	1.7	fputs(argv[0], stderr);
80	greg	1.12	fputs(": input size too big\n", stderr);
81	greg	1.7	exit(1);
82			}
83	greg	1.14	if (curbytes) {
84	greg	1.8	curtab = "";
85	greg	1.14	++binout;
86			}
87	greg	1.7	break;
88	greg	1.1	case '\0':
89			tabc[nfiles] = curtab;
90	greg	1.12	input[nfiles] = stdin;
91			if (curbytes > 0)
92			SET_FILE_BINARY(input[nfiles]);
93			else
94			curbytes = -curbytes;
95			bytsiz[nfiles++] = curbytes;
96	greg	1.1	break;
97	greg	1.7	badopt:;
98	greg	1.1	default:
99			fputs(argv[0], stderr);
100			fputs(": bad option\n", stderr);
101			exit(1);
102			}
103			} else if (argv[i][0] == '!') {
104			tabc[nfiles] = curtab;
105	greg	1.9	if ((input[nfiles] = popen(argv[i]+1, "r")) == NULL) {
106	greg	1.1	fputs(argv[i], stderr);
107			fputs(": cannot start command\n", stderr);
108			exit(1);
109			}
110	greg	1.12	if (curbytes > 0)
111	greg	1.9	SET_FILE_BINARY(input[nfiles]);
112	greg	1.12	else
113			curbytes = -curbytes;
114			bytsiz[nfiles++] = curbytes;
115	greg	1.1	} else {
116			tabc[nfiles] = curtab;
117	greg	1.9	if ((input[nfiles] = fopen(argv[i], "r")) == NULL) {
118	greg	1.1	fputs(argv[i], stderr);
119			fputs(": cannot open file\n", stderr);
120			exit(1);
121			}
122	greg	1.12	if (curbytes > 0)
123	greg	1.9	SET_FILE_BINARY(input[nfiles]);
124	greg	1.12	else
125			curbytes = -curbytes;
126			bytsiz[nfiles++] = curbytes;
127	greg	1.1	}
128			if (nfiles >= MAXFILE) {
129			fputs(argv[0], stderr);
130			fputs(": too many input streams\n", stderr);
131			exit(1);
132			}
133			}
134	greg	1.14	if (binout) /* binary output? */
135			SET_FILE_BINARY(stdout);
136			#ifdef getc_unlocked /* avoid lock/unlock overhead */
137			for (i = nfiles; i--; )
138			flockfile(input[i]);
139			flockfile(stdout);
140			#endif
141	greg	1.11	puteol = 0; /* check for ASCII output */
142	greg	1.7	for (i = nfiles; i--; )
143	greg	1.11	if (!bytsiz[i] \|\| isprint(tabc[i][0]) \|\| tabc[i][0] == '\t') {
144	greg	1.7	puteol++;
145			break;
146			}
147	greg	1.11	for ( ; ; ) { /* main loop */
148	greg	1.1	for (i = 0; i < nfiles; i++) {
149	greg	1.7	if (bytsiz[i]) { /* binary file */
150	greg	1.11	if (fread(buf, bytsiz[i], 1, input[i]) < 1)
151			break;
152			if (i)
153			fputs(tabc[i], stdout);
154			fwrite(buf, bytsiz[i], 1, stdout);
155			} else {
156			if (fgets(buf, MAXLINE, input[i]) == NULL)
157			break;
158	greg	1.1	if (i)
159	greg	1.6	fputs(tabc[i], stdout);
160	greg	1.1	buf[strlen(buf)-1] = '\0';
161			fputs(buf, stdout);
162			}
163			}
164	greg	1.11	if (i < nfiles)
165			break;
166			if (puteol)
167	greg	1.1	putchar('\n');
168	greg	1.11	if (unbuff)
169			fflush(stdout);
170			}
171			return(0);
172	greg	1.1	}