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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	bin/csh/misc.c	Lines:	0	125	0.0 %
Date:	2017-11-07	Branches:	0	99	0.0 %


/*	$OpenBSD: misc.c,v 1.20 2017/06/20 16:44:06 anton Exp $	*/
/*	$NetBSD: misc.c,v 1.6 1995/03/21 09:03:09 cgd Exp $	*/

/*-
 * Copyright (c) 1980, 1991, 1993
 *	The Regents of the University of California.  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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <sys/types.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>

#include "csh.h"
#include "extern.h"

static int	fdcmp(int);
static int	renum(int, int);

int
any(char *s, int c)
{
    if (!s)
	return (0);		/* Check for nil pointer */
    while (*s)
	if (*s++ == c)
	    return (1);
    return (0);
}

char   *
strsave(char *s)
{
    char   *n;
    char *p;

    if (s == NULL)
	s = "";
    for (p = s; *p++;)
	continue;
    n = p = xreallocarray(NULL, (p - s), sizeof(char));
    while ((*p++ = *s++) != '\0')
	continue;
    return (n);
}

Char  **
blkend(Char **up)
{

    while (*up)
	up++;
    return (up);
}


void
blkpr(FILE *fp, Char **av)
{

    for (; *av; av++) {
	(void) fprintf(fp, "%s", vis_str(*av));
	if (av[1])
	    (void) fprintf(fp, " ");
    }
}

int
blklen(Char **av)
{
    int i = 0;

    while (*av++)
	i++;
    return (i);
}

Char  **
blkcpy(Char **oav, Char **bv)
{
    Char **av = oav;

    while ((*av++ = *bv++) != NULL)
	continue;
    return (oav);
}

Char  **
blkcat(Char **up, Char **vp)
{

    (void) blkcpy(blkend(up), vp);
    return (up);
}

void
blkfree(Char **av0)
{
    Char **av = av0;

    if (!av0)
	return;
    for (; *av; av++)
	free(* av);
    free(av0);
}

Char  **
saveblk(Char **v)
{
    Char **newv = xcalloc((size_t) (blklen(v) + 1), sizeof(Char **));
    Char  **onewv = newv;

    while (*v)
	*newv++ = Strsave(*v++);
    return (onewv);
}

Char  **
blkspl(Char **up, Char **vp)
{
    Char **wp = xcalloc((size_t) (blklen(up) + blklen(vp) + 1),
		      sizeof(Char **));

    (void) blkcpy(wp, up);
    return (blkcat(wp, vp));
}

Char
lastchr(Char *cp)
{

    if (!cp)
	return (0);
    if (!*cp)
	return (0);
    while (cp[1])
	cp++;
    return (*cp);
}

/*
 * Returns 0 if fd is in use, 1 if fd is greater than the largest used file
 * descriptor and -1 otherwise.
 */
static int
fdcmp(int fd)
{
    int fds[] = { SHIN, SHOUT, SHERR, OLDSTD, FSHTTY };
    int i, max;

    max = -1;
    for (i = 0; i < sizeof(fds)/sizeof(fds[0]); i++) {
	if (fd == fds[i])
	    return (0);
	if (fds[i] > max)
	    max = fds[i];
    }
    if (fd > max)
	return (1);

    return (-1);
}

/*
 * This routine is called after an error to close up
 * any units which may have been left open accidentally.
 */
void
closem(void)
{
    int f;
    int max = sysconf(_SC_OPEN_MAX);

    for (f = 0; f < max; f++)
	switch (fdcmp(f)) {
	case 0:
	    continue;
	case 1:
	    closefrom(f);
	    return;
	default:
	    close(f);
	}
}

void
donefds(void)
{
    (void) close(0);
    (void) close(1);
    (void) close(2);

    didfds = 0;
}

/*
 * Move descriptor i to j.
 * If j is -1 then we just want to get i to a safe place,
 * i.e. to a unit > 2.  This also happens in dcopy.
 */
int
dmove(int i, int j)
{

    if (i == j || i < 0)
	return (i);
    if (j >= 0) {
	(void) dup2(i, j);
	if (j != i)
	    (void) close(i);
	return (j);
    }
    j = dcopy(i, j);
    if (j != i)
	(void) close(i);
    return (j);
}

int
dcopy(int i, int j)
{

    if (i == j || i < 0 || (j < 0 && i > 2))
	return (i);
    if (j >= 0) {
	(void) dup2(i, j);
	return (j);
    }
    (void) close(j);
    return (renum(i, j));
}

static int
renum(int i, int j)
{
    int k = dup(i);

    if (k < 0)
	return (-1);
    if (j == -1 && k > 2)
	return (k);
    if (k != j) {
	j = renum(k, j);
	(void) close(k);
	return (j);
    }
    return (k);
}

/*
 * Left shift a command argument list, discarding
 * the first c arguments.  Used in "shift" commands
 * as well as by commands like "repeat".
 */
void
lshift(Char **v, int c)
{
    Char **u;

    for (u = v; *u && --c >= 0; u++)
	free(*u);
    (void) blkcpy(v, u);
}

int
number(Char *cp)
{
    if (!cp)
	return(0);
    if (*cp == '-') {
	cp++;
	if (!Isdigit(*cp))
	    return (0);
	cp++;
    }
    while (*cp && Isdigit(*cp))
	cp++;
    return (*cp == 0);
}

Char  **
copyblk(Char **v)
{
    Char  **nv = xcalloc((size_t) (blklen(v) + 1), sizeof(Char **));

    return (blkcpy(nv, v));
}

Char   *
strip(Char *cp)
{
    Char *dp = cp;

    if (!cp)
	return (cp);
    while ((*dp++ &= TRIM) != '\0')
	continue;
    return (cp);
}

Char   *
quote(Char *cp)
{
    Char *dp = cp;

    if (!cp)
	return (cp);
    while (*dp != '\0')
	*dp++ |= QUOTE;
    return (cp);
}

void
udvar(Char *name)
{

    setname(vis_str(name));
    stderror(ERR_NAME | ERR_UNDVAR);
}

int
prefix(Char *sub, Char *str)
{

    for (;;) {
	if (*sub == 0)
	    return (1);
	if (*str == 0)
	    return (0);
	if (*sub++ != *str++)
	    return (0);
    }
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: misc.c,v 1.20 2017/06/20 16:44:06 anton Exp $ */
2			/* $NetBSD: misc.c,v 1.6 1995/03/21 09:03:09 cgd Exp $ */
3
4			/*-
5			* Copyright (c) 1980, 1991, 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			#include <sys/types.h>
34			#include <stdlib.h>
35			#include <unistd.h>
36			#include <stdarg.h>
37
38			#include "csh.h"
39			#include "extern.h"
40
41			static int fdcmp(int);
42			static int renum(int, int);
43
44			int
45			any(char *s, int c)
46			{
47			if (!s)
48			return (0); /* Check for nil pointer */
49			while (*s)
50			if (*s++ == c)
51			return (1);
52			return (0);
53			}
54
55			char *
56			strsave(char *s)
57			{
58			char *n;
59			char *p;
60
61			if (s == NULL)
62			s = "";
63			for (p = s; *p++;)
64			continue;
65			n = p = xreallocarray(NULL, (p - s), sizeof(char));
66			while ((p++ = s++) != '\0')
67			continue;
68			return (n);
69			}
70
71			Char **
72			blkend(Char **up)
73			{
74
75			while (*up)
76			up++;
77			return (up);
78			}
79
80
81			void
82			blkpr(FILE fp, Char *av)
83			{
84
85			for (; *av; av++) {
86			(void) fprintf(fp, "%s", vis_str(*av));
87			if (av[1])
88			(void) fprintf(fp, " ");
89			}
90			}
91
92			int
93			blklen(Char **av)
94			{
95			int i = 0;
96
97			while (*av++)
98			i++;
99			return (i);
100			}
101
102			Char **
103			blkcpy(Char oav, Char bv)
104			{
105			Char **av = oav;
106
107			while ((av++ = bv++) != NULL)
108			continue;
109			return (oav);
110			}
111
112			Char **
113			blkcat(Char up, Char vp)
114			{
115
116			(void) blkcpy(blkend(up), vp);
117			return (up);
118			}
119
120			void
121			blkfree(Char **av0)
122			{
123			Char **av = av0;
124
125			if (!av0)
126			return;
127			for (; *av; av++)
128			free(* av);
129			free(av0);
130			}
131
132			Char **
133			saveblk(Char **v)
134			{
135			Char newv = xcalloc((size_t) (blklen(v) + 1), sizeof(Char ));
136			Char **onewv = newv;
137
138			while (*v)
139			newv++ = Strsave(v++);
140			return (onewv);
141			}
142
143			Char **
144			blkspl(Char up, Char vp)
145			{
146			Char **wp = xcalloc((size_t) (blklen(up) + blklen(vp) + 1),
147			sizeof(Char **));
148
149			(void) blkcpy(wp, up);
150			return (blkcat(wp, vp));
151			}
152
153			Char
154			lastchr(Char *cp)
155			{
156
157			if (!cp)
158			return (0);
159			if (!*cp)
160			return (0);
161			while (cp[1])
162			cp++;
163			return (*cp);
164			}
165
166			/*
167			* Returns 0 if fd is in use, 1 if fd is greater than the largest used file
168			* descriptor and -1 otherwise.
169			*/
170			static int
171			fdcmp(int fd)
172			{
173			int fds[] = { SHIN, SHOUT, SHERR, OLDSTD, FSHTTY };
174			int i, max;
175
176			max = -1;
177			for (i = 0; i < sizeof(fds)/sizeof(fds[0]); i++) {
178			if (fd == fds[i])
179			return (0);
180			if (fds[i] > max)
181			max = fds[i];
182			}
183			if (fd > max)
184			return (1);
185
186			return (-1);
187			}
188
189			/*
190			* This routine is called after an error to close up
191			* any units which may have been left open accidentally.
192			*/
193			void
194			closem(void)
195			{
196			int f;
197			int max = sysconf(_SC_OPEN_MAX);
198
199			for (f = 0; f < max; f++)
200			switch (fdcmp(f)) {
201			case 0:
202			continue;
203			case 1:
204			closefrom(f);
205			return;
206			default:
207			close(f);
208			}
209			}
210
211			void
212			donefds(void)
213			{
214			(void) close(0);
215			(void) close(1);
216			(void) close(2);
217
218			didfds = 0;
219			}
220
221			/*
222			* Move descriptor i to j.
223			* If j is -1 then we just want to get i to a safe place,
224			* i.e. to a unit > 2. This also happens in dcopy.
225			*/
226			int
227			dmove(int i, int j)
228			{
229
230			if (i == j \|\| i < 0)
231			return (i);
232			if (j >= 0) {
233			(void) dup2(i, j);
234			if (j != i)
235			(void) close(i);
236			return (j);
237			}
238			j = dcopy(i, j);
239			if (j != i)
240			(void) close(i);
241			return (j);
242			}
243
244			int
245			dcopy(int i, int j)
246			{
247
248			if (i == j \|\| i < 0 \|\| (j < 0 && i > 2))
249			return (i);
250			if (j >= 0) {
251			(void) dup2(i, j);
252			return (j);
253			}
254			(void) close(j);
255			return (renum(i, j));
256			}
257
258			static int
259			renum(int i, int j)
260			{
261			int k = dup(i);
262
263			if (k < 0)
264			return (-1);
265			if (j == -1 && k > 2)
266			return (k);
267			if (k != j) {
268			j = renum(k, j);
269			(void) close(k);
270			return (j);
271			}
272			return (k);
273			}
274
275			/*
276			* Left shift a command argument list, discarding
277			* the first c arguments. Used in "shift" commands
278			* as well as by commands like "repeat".
279			*/
280			void
281			lshift(Char **v, int c)
282			{
283			Char **u;
284
285			for (u = v; *u && --c >= 0; u++)
286			free(*u);
287			(void) blkcpy(v, u);
288			}
289
290			int
291			number(Char *cp)
292			{
293			if (!cp)
294			return(0);
295			if (*cp == '-') {
296			cp++;
297			if (!Isdigit(*cp))
298			return (0);
299			cp++;
300			}
301			while (cp && Isdigit(cp))
302			cp++;
303			return (*cp == 0);
304			}
305
306			Char **
307			copyblk(Char **v)
308			{
309			Char nv = xcalloc((size_t) (blklen(v) + 1), sizeof(Char ));
310
311			return (blkcpy(nv, v));
312			}
313
314			Char *
315			strip(Char *cp)
316			{
317			Char *dp = cp;
318
319			if (!cp)
320			return (cp);
321			while ((*dp++ &= TRIM) != '\0')
322			continue;
323			return (cp);
324			}
325
326			Char *
327			quote(Char *cp)
328			{
329			Char *dp = cp;
330
331			if (!cp)
332			return (cp);
333			while (*dp != '\0')
334			*dp++ \|= QUOTE;
335			return (cp);
336			}
337
338			void
339			udvar(Char *name)
340			{
341
342			setname(vis_str(name));
343			stderror(ERR_NAME \| ERR_UNDVAR);
344			}
345
346			int
347			prefix(Char sub, Char str)
348			{
349
350			for (;;) {
351			if (*sub == 0)
352			return (1);
353			if (*str == 0)
354			return (0);
355			if (sub++ != str++)
356			return (0);
357			}
358			}