Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	bin/ed/io.c	Lines:	0	168	0.0 %
Date:	2016-12-06	Branches:	0	292	0.0 %


/*	$OpenBSD: io.c,v 1.19 2016/03/22 17:58:28 mmcc Exp $	*/
/*	$NetBSD: io.c,v 1.2 1995/03/21 09:04:43 cgd Exp $	*/

/* io.c: This file contains the i/o routines for the ed line editor */
/*-
 * Copyright (c) 1993 Andrew Moore, Talke Studio.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <regex.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "ed.h"

static int read_stream(FILE *, int);
static int get_stream_line(FILE *);
static int write_stream(FILE *, int, int);
static int put_stream_line(FILE *, char *, int);

extern int scripted;

/* read_file: read a named file/pipe into the buffer; return line count */
int
read_file(char *fn, int n)
{
	FILE *fp;
	int size;


	fp = (*fn == '!') ? popen(fn + 1, "r") : fopen(strip_escapes(fn), "r");
	if (fp == NULL) {
		perror(fn);
		seterrmsg("cannot open input file");
		return ERR;
	} else if ((size = read_stream(fp, n)) < 0)
		return ERR;
	 else if (((*fn == '!') ?  pclose(fp) : fclose(fp)) < 0) {
		perror(fn);
		seterrmsg("cannot close input file");
		return ERR;
	}
	fprintf(stderr, !scripted ? "%d\n" : "", size);
	return current_addr - n;
}


static char *sbuf;		/* file i/o buffer */
static int sbufsz;		/* file i/o buffer size */
int newline_added;		/* if set, newline appended to input file */

/* read_stream: read a stream into the editor buffer; return status */
static int
read_stream(FILE *fp, int n)
{
	line_t *lp = get_addressed_line_node(n);
	undo_t *up = NULL;
	unsigned int size = 0;
	int o_newline_added = newline_added;
	int o_isbinary = isbinary;
	int appended = (n == addr_last);
	int len;

	isbinary = newline_added = 0;
	for (current_addr = n; (len = get_stream_line(fp)) > 0; size += len) {
		SPL1();
		if (put_sbuf_line(sbuf) == NULL) {
			SPL0();
			return ERR;
		}
		lp = lp->q_forw;
		if (up)
			up->t = lp;
		else if ((up = push_undo_stack(UADD, current_addr,
		    current_addr)) == NULL) {
			SPL0();
			return ERR;
		}
		SPL0();
	}
	if (len < 0)
		return ERR;
	if (appended && size && o_isbinary && o_newline_added)
		fputs("newline inserted\n", stderr);
	else if (newline_added && (!appended || (!isbinary && !o_isbinary)))
		fputs("newline appended\n", stderr);
	if (isbinary && newline_added && !appended)
	    	size += 1;
	if (!size)
		newline_added = 1;
	newline_added = appended ? newline_added : o_newline_added;
	isbinary = isbinary | o_isbinary;
	return size;
}

/* get_stream_line: read a line of text from a stream; return line length */
static int
get_stream_line(FILE *fp)
{
	int c;
	int i = 0;

	while (((c = getc(fp)) != EOF || (!feof(fp) &&
	    !ferror(fp))) && c != '\n') {
		REALLOC(sbuf, sbufsz, i + 1, ERR);
		if (!(sbuf[i++] = c))
			isbinary = 1;
	}
	REALLOC(sbuf, sbufsz, i + 2, ERR);
	if (c == '\n')
		sbuf[i++] = c;
	else if (ferror(fp)) {
		perror(NULL);
		seterrmsg("cannot read input file");
		return ERR;
	} else if (i) {
		sbuf[i++] = '\n';
		newline_added = 1;
	}
	sbuf[i] = '\0';
	return (isbinary && newline_added && i) ? --i : i;
}


/* write_file: write a range of lines to a named file/pipe; return line count */
int
write_file(char *fn, char *mode, int n, int m)
{
	FILE *fp;
	int size;

	fp = (*fn == '!') ? popen(fn+1, "w") : fopen(strip_escapes(fn), mode);
	if (fp == NULL) {
		perror(fn);
		seterrmsg("cannot open output file");
		return ERR;
	} else if ((size = write_stream(fp, n, m)) < 0)
		return ERR;
	 else if (((*fn == '!') ?  pclose(fp) : fclose(fp)) < 0) {
		perror(fn);
		seterrmsg("cannot close output file");
		return ERR;
	}
	fprintf(stderr, !scripted ? "%d\n" : "", size);
	return n ? m - n + 1 : 0;
}


/* write_stream: write a range of lines to a stream; return status */
static int
write_stream(FILE *fp, int n, int m)
{
	line_t *lp = get_addressed_line_node(n);
	unsigned int size = 0;
	char *s;
	int len;

	for (; n && n <= m; n++, lp = lp->q_forw) {
		if ((s = get_sbuf_line(lp)) == NULL)
			return ERR;
		len = lp->len;
		if (n != addr_last || !isbinary || !newline_added)
			s[len++] = '\n';
		if (put_stream_line(fp, s, len) < 0)
			return ERR;
		size += len;
	}
	return size;
}


/* put_stream_line: write a line of text to a stream; return status */
static int
put_stream_line(FILE *fp, char *s, int len)
{
	while (len--) {
		if (fputc(*s, fp) < 0) {
			perror(NULL);
			seterrmsg("cannot write file");
			return ERR;
		}
		s++;
	}
	return 0;
}

/* get_extended_line: get a an extended line from stdin */
char *
get_extended_line(int *sizep, int nonl)
{
	static char *cvbuf = NULL;		/* buffer */
	static int cvbufsz = 0;			/* buffer size */

	int l, n;
	char *t = ibufp;

	while (*t++ != '\n')
		;
	if ((l = t - ibufp) < 2 || !has_trailing_escape(ibufp, ibufp + l - 1)) {
		*sizep = l;
		return ibufp;
	}
	*sizep = -1;
	REALLOC(cvbuf, cvbufsz, l, NULL);
	memcpy(cvbuf, ibufp, l);
	*(cvbuf + --l - 1) = '\n'; 	/* strip trailing esc */
	if (nonl)
		l--; 			/* strip newline */
	for (;;) {
		if ((n = get_tty_line()) < 0)
			return NULL;
		else if (n == 0 || ibuf[n - 1] != '\n') {
			seterrmsg("unexpected end-of-file");
			return NULL;
		}
		REALLOC(cvbuf, cvbufsz, l + n, NULL);
		memcpy(cvbuf + l, ibuf, n);
		l += n;
		if (n < 2 || !has_trailing_escape(cvbuf, cvbuf + l - 1))
			break;
		*(cvbuf + --l - 1) = '\n'; 	/* strip trailing esc */
		if (nonl) l--; 			/* strip newline */
	}
	REALLOC(cvbuf, cvbufsz, l + 1, NULL);
	cvbuf[l] = '\0';
	*sizep = l;
	return cvbuf;
}


/* get_tty_line: read a line of text from stdin; return line length */
int
get_tty_line(void)
{
	int oi = 0;
	int i = 0;
	int c;

	for (;;)
		switch (c = getchar()) {
		default:
			oi = 0;
			REALLOC(ibuf, ibufsz, i + 2, ERR);
			if (!(ibuf[i++] = c)) isbinary = 1;
			if (c != '\n')
				continue;
			lineno++;
			ibuf[i] = '\0';
			ibufp = ibuf;
			return i;
		case EOF:
			if (ferror(stdin)) {
				perror("stdin");
				seterrmsg("cannot read stdin");
				clearerr(stdin);
				ibufp = NULL;
				return ERR;
			} else {
				clearerr(stdin);
				if (i != oi) {
					oi = i;
					continue;
				} else if (i)
					ibuf[i] = '\0';
				ibufp = ibuf;
				return i;
			}
		}
}



#define ESCAPES "\a\b\f\n\r\t\v\\"
#define ESCCHARS "abfnrtv\\"

extern int rows;
extern int cols;

/* put_tty_line: print text to stdout */
int
put_tty_line(char *s, int l, int n, int gflag)
{
	int col = 0;
#ifndef BACKWARDS
	int lc = 0;
#endif
	char *cp;

	if (gflag & GNP) {
		printf("%d\t", n);
		col = 8;
	}
	for (; l--; s++) {
		if ((gflag & GLS) && ++col > cols) {
			fputs("\\\n", stdout);
			col = 1;
#ifndef BACKWARDS
			if (!scripted && !isglobal && ++lc > rows) {
				lc = 0;
				fputs("Press <RETURN> to continue... ", stdout);
				fflush(stdout);
				if (get_tty_line() < 0)
					return ERR;
			}
#endif
		}
		if (gflag & GLS) {
			if (31 < *s && *s < 127 && *s != '\\')
				putchar(*s);
			else {
				putchar('\\');
				col++;
				if (*s && (cp = strchr(ESCAPES, *s)) != NULL)
					putchar(ESCCHARS[cp - ESCAPES]);
				else {
					putchar((((unsigned char) *s & 0300) >> 6) + '0');
					putchar((((unsigned char) *s & 070) >> 3) + '0');
					putchar(((unsigned char) *s & 07) + '0');
					col += 2;
				}
			}

		} else
			putchar(*s);
	}
#ifndef BACKWARDS
	if (gflag & GLS)
		putchar('$');
#endif
	putchar('\n');
	return 0;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: io.c,v 1.19 2016/03/22 17:58:28 mmcc Exp $ */
2			/* $NetBSD: io.c,v 1.2 1995/03/21 09:04:43 cgd Exp $ */
3
4			/* io.c: This file contains the i/o routines for the ed line editor */
5			/*-
6			* Copyright (c) 1993 Andrew Moore, Talke Studio.
7			* All rights reserved.
8			*
9			* Redistribution and use in source and binary forms, with or without
10			* modification, are permitted provided that the following conditions
11			* are met:
12			* 1. Redistributions of source code must retain the above copyright
13			* notice, this list of conditions and the following disclaimer.
14			* 2. Redistributions in binary form must reproduce the above copyright
15			* notice, this list of conditions and the following disclaimer in the
16			* documentation and/or other materials provided with the distribution.
17			*
18			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28			* SUCH DAMAGE.
29			*/
30
31			#include <regex.h>
32			#include <signal.h>
33			#include <stdio.h>
34			#include <stdlib.h>
35			#include <string.h>
36
37			#include "ed.h"
38
39			static int read_stream(FILE *, int);
40			static int get_stream_line(FILE *);
41			static int write_stream(FILE *, int, int);
42			static int put_stream_line(FILE , char , int);
43
44			extern int scripted;
45
46			/* read_file: read a named file/pipe into the buffer; return line count */
47			int
48			read_file(char *fn, int n)
49			{
50			FILE *fp;
51			int size;
52
53
54			fp = (*fn == '!') ? popen(fn + 1, "r") : fopen(strip_escapes(fn), "r");
55			if (fp == NULL) {
56			perror(fn);
57			seterrmsg("cannot open input file");
58			return ERR;
59			} else if ((size = read_stream(fp, n)) < 0)
60			return ERR;
61			else if (((*fn == '!') ? pclose(fp) : fclose(fp)) < 0) {
62			perror(fn);
63			seterrmsg("cannot close input file");
64			return ERR;
65			}
66			fprintf(stderr, !scripted ? "%d\n" : "", size);
67			return current_addr - n;
68			}
69
70
71			static char sbuf; / file i/o buffer */
72			static int sbufsz; /* file i/o buffer size */
73			int newline_added; /* if set, newline appended to input file */
74
75			/* read_stream: read a stream into the editor buffer; return status */
76			static int
77			read_stream(FILE *fp, int n)
78			{
79			line_t *lp = get_addressed_line_node(n);
80			undo_t *up = NULL;
81			unsigned int size = 0;
82			int o_newline_added = newline_added;
83			int o_isbinary = isbinary;
84			int appended = (n == addr_last);
85			int len;
86
87			isbinary = newline_added = 0;
88			for (current_addr = n; (len = get_stream_line(fp)) > 0; size += len) {
89			SPL1();
90			if (put_sbuf_line(sbuf) == NULL) {
91			SPL0();
92			return ERR;
93			}
94			lp = lp->q_forw;
95			if (up)
96			up->t = lp;
97			else if ((up = push_undo_stack(UADD, current_addr,
98			current_addr)) == NULL) {
99			SPL0();
100			return ERR;
101			}
102			SPL0();
103			}
104			if (len < 0)
105			return ERR;
106			if (appended && size && o_isbinary && o_newline_added)
107			fputs("newline inserted\n", stderr);
108			else if (newline_added && (!appended \|\| (!isbinary && !o_isbinary)))
109			fputs("newline appended\n", stderr);
110			if (isbinary && newline_added && !appended)
111			size += 1;
112			if (!size)
113			newline_added = 1;
114			newline_added = appended ? newline_added : o_newline_added;
115			isbinary = isbinary \| o_isbinary;
116			return size;
117			}
118
119			/* get_stream_line: read a line of text from a stream; return line length */
120			static int
121			get_stream_line(FILE *fp)
122			{
123			int c;
124			int i = 0;
125
126			while (((c = getc(fp)) != EOF \|\| (!feof(fp) &&
127			!ferror(fp))) && c != '\n') {
128			REALLOC(sbuf, sbufsz, i + 1, ERR);
129			if (!(sbuf[i++] = c))
130			isbinary = 1;
131			}
132			REALLOC(sbuf, sbufsz, i + 2, ERR);
133			if (c == '\n')
134			sbuf[i++] = c;
135			else if (ferror(fp)) {
136			perror(NULL);
137			seterrmsg("cannot read input file");
138			return ERR;
139			} else if (i) {
140			sbuf[i++] = '\n';
141			newline_added = 1;
142			}
143			sbuf[i] = '\0';
144			return (isbinary && newline_added && i) ? --i : i;
145			}
146
147
148			/* write_file: write a range of lines to a named file/pipe; return line count */
149			int
150			write_file(char fn, char mode, int n, int m)
151			{
152			FILE *fp;
153			int size;
154
155			fp = (*fn == '!') ? popen(fn+1, "w") : fopen(strip_escapes(fn), mode);
156			if (fp == NULL) {
157			perror(fn);
158			seterrmsg("cannot open output file");
159			return ERR;
160			} else if ((size = write_stream(fp, n, m)) < 0)
161			return ERR;
162			else if (((*fn == '!') ? pclose(fp) : fclose(fp)) < 0) {
163			perror(fn);
164			seterrmsg("cannot close output file");
165			return ERR;
166			}
167			fprintf(stderr, !scripted ? "%d\n" : "", size);
168			return n ? m - n + 1 : 0;
169			}
170
171
172			/* write_stream: write a range of lines to a stream; return status */
173			static int
174			write_stream(FILE *fp, int n, int m)
175			{
176			line_t *lp = get_addressed_line_node(n);
177			unsigned int size = 0;
178			char *s;
179			int len;
180
181			for (; n && n <= m; n++, lp = lp->q_forw) {
182			if ((s = get_sbuf_line(lp)) == NULL)
183			return ERR;
184			len = lp->len;
185			if (n != addr_last \|\| !isbinary \|\| !newline_added)
186			s[len++] = '\n';
187			if (put_stream_line(fp, s, len) < 0)
188			return ERR;
189			size += len;
190			}
191			return size;
192			}
193
194
195			/* put_stream_line: write a line of text to a stream; return status */
196			static int
197			put_stream_line(FILE fp, char s, int len)
198			{
199			while (len--) {
200			if (fputc(*s, fp) < 0) {
201			perror(NULL);
202			seterrmsg("cannot write file");
203			return ERR;
204			}
205			s++;
206			}
207			return 0;
208			}
209
210			/* get_extended_line: get a an extended line from stdin */
211			char *
212			get_extended_line(int *sizep, int nonl)
213			{
214			static char cvbuf = NULL; / buffer */
215			static int cvbufsz = 0; /* buffer size */
216
217			int l, n;
218			char *t = ibufp;
219
220			while (*t++ != '\n')
221			;
222			if ((l = t - ibufp) < 2 \|\| !has_trailing_escape(ibufp, ibufp + l - 1)) {
223			*sizep = l;
224			return ibufp;
225			}
226			*sizep = -1;
227			REALLOC(cvbuf, cvbufsz, l, NULL);
228			memcpy(cvbuf, ibufp, l);
229			(cvbuf + --l - 1) = '\n'; / strip trailing esc */
230			if (nonl)
231			l--; /* strip newline */
232			for (;;) {
233			if ((n = get_tty_line()) < 0)
234			return NULL;
235			else if (n == 0 \|\| ibuf[n - 1] != '\n') {
236			seterrmsg("unexpected end-of-file");
237			return NULL;
238			}
239			REALLOC(cvbuf, cvbufsz, l + n, NULL);
240			memcpy(cvbuf + l, ibuf, n);
241			l += n;
242			if (n < 2 \|\| !has_trailing_escape(cvbuf, cvbuf + l - 1))
243			break;
244			(cvbuf + --l - 1) = '\n'; / strip trailing esc */
245			if (nonl) l--; /* strip newline */
246			}
247			REALLOC(cvbuf, cvbufsz, l + 1, NULL);
248			cvbuf[l] = '\0';
249			*sizep = l;
250			return cvbuf;
251			}
252
253
254			/* get_tty_line: read a line of text from stdin; return line length */
255			int
256			get_tty_line(void)
257			{
258			int oi = 0;
259			int i = 0;
260			int c;
261
262			for (;;)
263			switch (c = getchar()) {
264			default:
265			oi = 0;
266			REALLOC(ibuf, ibufsz, i + 2, ERR);
267			if (!(ibuf[i++] = c)) isbinary = 1;
268			if (c != '\n')
269			continue;
270			lineno++;
271			ibuf[i] = '\0';
272			ibufp = ibuf;
273			return i;
274			case EOF:
275			if (ferror(stdin)) {
276			perror("stdin");
277			seterrmsg("cannot read stdin");
278			clearerr(stdin);
279			ibufp = NULL;
280			return ERR;
281			} else {
282			clearerr(stdin);
283			if (i != oi) {
284			oi = i;
285			continue;
286			} else if (i)
287			ibuf[i] = '\0';
288			ibufp = ibuf;
289			return i;
290			}
291			}
292			}
293
294
295
296			#define ESCAPES "\a\b\f\n\r\t\v\\"
297			#define ESCCHARS "abfnrtv\\"
298
299			extern int rows;
300			extern int cols;
301
302			/* put_tty_line: print text to stdout */
303			int
304			put_tty_line(char *s, int l, int n, int gflag)
305			{
306			int col = 0;
307			#ifndef BACKWARDS
308			int lc = 0;
309			#endif
310			char *cp;
311
312			if (gflag & GNP) {
313			printf("%d\t", n);
314			col = 8;
315			}
316			for (; l--; s++) {
317			if ((gflag & GLS) && ++col > cols) {
318			fputs("\\\n", stdout);
319			col = 1;
320			#ifndef BACKWARDS
321			if (!scripted && !isglobal && ++lc > rows) {
322			lc = 0;
323			fputs("Press <RETURN> to continue... ", stdout);
324			fflush(stdout);
325			if (get_tty_line() < 0)
326			return ERR;
327			}
328			#endif
329			}
330			if (gflag & GLS) {
331			if (31 < s && s < 127 && *s != '\\')
332			putchar(*s);
333			else {
334			putchar('\\');
335			col++;
336			if (s && (cp = strchr(ESCAPES, s)) != NULL)
337			putchar(ESCCHARS[cp - ESCAPES]);
338			else {
339			putchar((((unsigned char) *s & 0300) >> 6) + '0');
340			putchar((((unsigned char) *s & 070) >> 3) + '0');
341			putchar(((unsigned char) *s & 07) + '0');
342			col += 2;
343			}
344			}
345
346			} else
347			putchar(*s);
348			}
349			#ifndef BACKWARDS
350			if (gflag & GLS)
351			putchar('$');
352			#endif
353			putchar('\n');
354			return 0;
355			}