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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	bin/ed/io.c	Lines:	0	162	0.0 %
Date:	2017-11-13	Branches:	0	304	0.0 %


/*	$OpenBSD: io.c,v 1.20 2017/04/26 21:25:43 naddy 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;
	}
	if (!scripted)
		fprintf(stderr, "%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;
	}
	if (!scripted)
		fprintf(stderr, "%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 1.20 2017/04/26 21:25:43 naddy 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			if (!scripted)
67			fprintf(stderr, "%d\n", size);
68			return current_addr - n;
69			}
70
71
72			static char sbuf; / file i/o buffer */
73			static int sbufsz; /* file i/o buffer size */
74			int newline_added; /* if set, newline appended to input file */
75
76			/* read_stream: read a stream into the editor buffer; return status */
77			static int
78			read_stream(FILE *fp, int n)
79			{
80			line_t *lp = get_addressed_line_node(n);
81			undo_t *up = NULL;
82			unsigned int size = 0;
83			int o_newline_added = newline_added;
84			int o_isbinary = isbinary;
85			int appended = (n == addr_last);
86			int len;
87
88			isbinary = newline_added = 0;
89			for (current_addr = n; (len = get_stream_line(fp)) > 0; size += len) {
90			SPL1();
91			if (put_sbuf_line(sbuf) == NULL) {
92			SPL0();
93			return ERR;
94			}
95			lp = lp->q_forw;
96			if (up)
97			up->t = lp;
98			else if ((up = push_undo_stack(UADD, current_addr,
99			current_addr)) == NULL) {
100			SPL0();
101			return ERR;
102			}
103			SPL0();
104			}
105			if (len < 0)
106			return ERR;
107			if (appended && size && o_isbinary && o_newline_added)
108			fputs("newline inserted\n", stderr);
109			else if (newline_added && (!appended \|\| (!isbinary && !o_isbinary)))
110			fputs("newline appended\n", stderr);
111			if (isbinary && newline_added && !appended)
112			size += 1;
113			if (!size)
114			newline_added = 1;
115			newline_added = appended ? newline_added : o_newline_added;
116			isbinary = isbinary \| o_isbinary;
117			return size;
118			}
119
120			/* get_stream_line: read a line of text from a stream; return line length */
121			static int
122			get_stream_line(FILE *fp)
123			{
124			int c;
125			int i = 0;
126
127			while (((c = getc(fp)) != EOF \|\| (!feof(fp) &&
128			!ferror(fp))) && c != '\n') {
129			REALLOC(sbuf, sbufsz, i + 1, ERR);
130			if (!(sbuf[i++] = c))
131			isbinary = 1;
132			}
133			REALLOC(sbuf, sbufsz, i + 2, ERR);
134			if (c == '\n')
135			sbuf[i++] = c;
136			else if (ferror(fp)) {
137			perror(NULL);
138			seterrmsg("cannot read input file");
139			return ERR;
140			} else if (i) {
141			sbuf[i++] = '\n';
142			newline_added = 1;
143			}
144			sbuf[i] = '\0';
145			return (isbinary && newline_added && i) ? --i : i;
146			}
147
148
149			/* write_file: write a range of lines to a named file/pipe; return line count */
150			int
151			write_file(char fn, char mode, int n, int m)
152			{
153			FILE *fp;
154			int size;
155
156			fp = (*fn == '!') ? popen(fn+1, "w") : fopen(strip_escapes(fn), mode);
157			if (fp == NULL) {
158			perror(fn);
159			seterrmsg("cannot open output file");
160			return ERR;
161			} else if ((size = write_stream(fp, n, m)) < 0)
162			return ERR;
163			else if (((*fn == '!') ? pclose(fp) : fclose(fp)) < 0) {
164			perror(fn);
165			seterrmsg("cannot close output file");
166			return ERR;
167			}
168			if (!scripted)
169			fprintf(stderr, "%d\n", size);
170			return n ? m - n + 1 : 0;
171			}
172
173
174			/* write_stream: write a range of lines to a stream; return status */
175			static int
176			write_stream(FILE *fp, int n, int m)
177			{
178			line_t *lp = get_addressed_line_node(n);
179			unsigned int size = 0;
180			char *s;
181			int len;
182
183			for (; n && n <= m; n++, lp = lp->q_forw) {
184			if ((s = get_sbuf_line(lp)) == NULL)
185			return ERR;
186			len = lp->len;
187			if (n != addr_last \|\| !isbinary \|\| !newline_added)
188			s[len++] = '\n';
189			if (put_stream_line(fp, s, len) < 0)
190			return ERR;
191			size += len;
192			}
193			return size;
194			}
195
196
197			/* put_stream_line: write a line of text to a stream; return status */
198			static int
199			put_stream_line(FILE fp, char s, int len)
200			{
201			while (len--) {
202			if (fputc(*s, fp) < 0) {
203			perror(NULL);
204			seterrmsg("cannot write file");
205			return ERR;
206			}
207			s++;
208			}
209			return 0;
210			}
211
212			/* get_extended_line: get a an extended line from stdin */
213			char *
214			get_extended_line(int *sizep, int nonl)
215			{
216			static char cvbuf = NULL; / buffer */
217			static int cvbufsz = 0; /* buffer size */
218
219			int l, n;
220			char *t = ibufp;
221
222			while (*t++ != '\n')
223			;
224			if ((l = t - ibufp) < 2 \|\| !has_trailing_escape(ibufp, ibufp + l - 1)) {
225			*sizep = l;
226			return ibufp;
227			}
228			*sizep = -1;
229			REALLOC(cvbuf, cvbufsz, l, NULL);
230			memcpy(cvbuf, ibufp, l);
231			(cvbuf + --l - 1) = '\n'; / strip trailing esc */
232			if (nonl)
233			l--; /* strip newline */
234			for (;;) {
235			if ((n = get_tty_line()) < 0)
236			return NULL;
237			else if (n == 0 \|\| ibuf[n - 1] != '\n') {
238			seterrmsg("unexpected end-of-file");
239			return NULL;
240			}
241			REALLOC(cvbuf, cvbufsz, l + n, NULL);
242			memcpy(cvbuf + l, ibuf, n);
243			l += n;
244			if (n < 2 \|\| !has_trailing_escape(cvbuf, cvbuf + l - 1))
245			break;
246			(cvbuf + --l - 1) = '\n'; / strip trailing esc */
247			if (nonl) l--; /* strip newline */
248			}
249			REALLOC(cvbuf, cvbufsz, l + 1, NULL);
250			cvbuf[l] = '\0';
251			*sizep = l;
252			return cvbuf;
253			}
254
255
256			/* get_tty_line: read a line of text from stdin; return line length */
257			int
258			get_tty_line(void)
259			{
260			int oi = 0;
261			int i = 0;
262			int c;
263
264			for (;;)
265			switch (c = getchar()) {
266			default:
267			oi = 0;
268			REALLOC(ibuf, ibufsz, i + 2, ERR);
269			if (!(ibuf[i++] = c)) isbinary = 1;
270			if (c != '\n')
271			continue;
272			lineno++;
273			ibuf[i] = '\0';
274			ibufp = ibuf;
275			return i;
276			case EOF:
277			if (ferror(stdin)) {
278			perror("stdin");
279			seterrmsg("cannot read stdin");
280			clearerr(stdin);
281			ibufp = NULL;
282			return ERR;
283			} else {
284			clearerr(stdin);
285			if (i != oi) {
286			oi = i;
287			continue;
288			} else if (i)
289			ibuf[i] = '\0';
290			ibufp = ibuf;
291			return i;
292			}
293			}
294			}
295
296
297
298			#define ESCAPES "\a\b\f\n\r\t\v\\"
299			#define ESCCHARS "abfnrtv\\"
300
301			extern int rows;
302			extern int cols;
303
304			/* put_tty_line: print text to stdout */
305			int
306			put_tty_line(char *s, int l, int n, int gflag)
307			{
308			int col = 0;
309			#ifndef BACKWARDS
310			int lc = 0;
311			#endif
312			char *cp;
313
314			if (gflag & GNP) {
315			printf("%d\t", n);
316			col = 8;
317			}
318			for (; l--; s++) {
319			if ((gflag & GLS) && ++col > cols) {
320			fputs("\\\n", stdout);
321			col = 1;
322			#ifndef BACKWARDS
323			if (!scripted && !isglobal && ++lc > rows) {
324			lc = 0;
325			fputs("Press <RETURN> to continue... ", stdout);
326			fflush(stdout);
327			if (get_tty_line() < 0)
328			return ERR;
329			}
330			#endif
331			}
332			if (gflag & GLS) {
333			if (31 < s && s < 127 && *s != '\\')
334			putchar(*s);
335			else {
336			putchar('\\');
337			col++;
338			if (s && (cp = strchr(ESCAPES, s)) != NULL)
339			putchar(ESCCHARS[cp - ESCAPES]);
340			else {
341			putchar((((unsigned char) *s & 0300) >> 6) + '0');
342			putchar((((unsigned char) *s & 070) >> 3) + '0');
343			putchar(((unsigned char) *s & 07) + '0');
344			col += 2;
345			}
346			}
347
348			} else
349			putchar(*s);
350			}
351			#ifndef BACKWARDS
352			if (gflag & GLS)
353			putchar('$');
354			#endif
355			putchar('\n');
356			return 0;
357			}