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Nama	Ukuran	Aksi
include-prefixes	-	Open
libfdt	-	Open
checks.c	50.31 MB	View DL Edit
data.c	4.51 MB	View DL Edit
dtc-lexer.l	6.14 MB	View DL Edit
dtc-parser.y	10.56 MB	View DL Edit
dtc.c	9.31 MB	View DL Edit
dtc.h	8.91 MB	View DL Edit
dtx_diff	8.98 MB	View DL Edit
dt_to_config	40.8 MB	View DL Edit
fdtget.c	7.92 MB	View DL Edit
fdtoverlay.c	4.24 MB	View DL Edit
fdtput.c	7.69 MB	View DL Edit
flattree.c	21.46 MB	View DL Edit
fstree.c	1.52 MB	View DL Edit
livetree.c	20.31 MB	View DL Edit
Makefile	1.62 MB	View DL Edit
srcpos.c	8.57 MB	View DL Edit
srcpos.h	2.88 MB	View DL Edit
treesource.c	6.83 MB	View DL Edit
update-dtc-source.sh	2.53 MB	View DL Edit
util.c	8.5 MB	View DL Edit
util.h	6.96 MB	View DL Edit
version_gen.h	42 B	View DL Edit
yamltree.c	6.21 MB	View DL Edit

Edit file: /usr/src/kernels/5.14.0-427.31.1.el9_4.x86_64/scripts/dtc/util.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright 2011 The Chromium Authors, All Rights Reserved.
 * Copyright 2008 Jon Loeliger, Freescale Semiconductor, Inc.
 *
 * util_is_printable_string contributed by
 *	Pantelis Antoniou <pantelis.antoniou AT gmail.com>
 */

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <inttypes.h>

#include <errno.h>
#include <fcntl.h>
#include <unistd.h>

#include "libfdt.h"
#include "util.h"
#include "version_gen.h"

char *xstrdup(const char *s)
{
	int len = strlen(s) + 1;
	char *d = xmalloc(len);

memcpy(d, s, len);

return d;
}

int xavsprintf_append(char **strp, const char *fmt, va_list ap)
{
	int n, size = 0;	/* start with 128 bytes */
	char *p;
	va_list ap_copy;

p = *strp;
	if (p)
		size = strlen(p);

va_copy(ap_copy, ap);
	n = vsnprintf(NULL, 0, fmt, ap_copy) + 1;
	va_end(ap_copy);

p = xrealloc(p, size + n);

n = vsnprintf(p + size, n, fmt, ap);

*strp = p;
	return strlen(p);
}

int xasprintf_append(char **strp, const char *fmt, ...)
{
	int n;
	va_list ap;

va_start(ap, fmt);
	n = xavsprintf_append(strp, fmt, ap);
	va_end(ap);

return n;
}

int xasprintf(char **strp, const char *fmt, ...)
{
	int n;
	va_list ap;

*strp = NULL;

va_start(ap, fmt);
	n = xavsprintf_append(strp, fmt, ap);
	va_end(ap);

return n;
}

char *join_path(const char *path, const char *name)
{
	int lenp = strlen(path);
	int lenn = strlen(name);
	int len;
	int needslash = 1;
	char *str;

len = lenp + lenn + 2;
	if ((lenp > 0) && (path[lenp-1] == '/')) {
		needslash = 0;
		len--;
	}

str = xmalloc(len);
	memcpy(str, path, lenp);
	if (needslash) {
		str[lenp] = '/';
		lenp++;
	}
	memcpy(str+lenp, name, lenn+1);
	return str;
}

bool util_is_printable_string(const void *data, int len)
{
	const char *s = data;
	const char *ss, *se;

/* zero length is not */
	if (len == 0)
		return 0;

/* must terminate with zero */
	if (s[len - 1] != '\0')
		return 0;

se = s + len;

while (s < se) {
		ss = s;
		while (s < se && *s && isprint((unsigned char)*s))
			s++;

/* not zero, or not done yet */
		if (*s != '\0' || s == ss)
			return 0;

s++;
	}

return 1;
}

/*
 * Parse a octal encoded character starting at index i in string s.  The
 * resulting character will be returned and the index i will be updated to
 * point at the character directly after the end of the encoding, this may be
 * the '\0' terminator of the string.
 */
static char get_oct_char(const char *s, int *i)
{
	char x[4];
	char *endx;
	long val;

x[3] = '\0';
	strncpy(x, s + *i, 3);

val = strtol(x, &endx, 8);

assert(endx > x);

(*i) += endx - x;
	return val;
}

/*
 * Parse a hexadecimal encoded character starting at index i in string s.  The
 * resulting character will be returned and the index i will be updated to
 * point at the character directly after the end of the encoding, this may be
 * the '\0' terminator of the string.
 */
static char get_hex_char(const char *s, int *i)
{
	char x[3];
	char *endx;
	long val;

x[2] = '\0';
	strncpy(x, s + *i, 2);

val = strtol(x, &endx, 16);
	if (!(endx  > x))
		die("\\x used with no following hex digits\n");

(*i) += endx - x;
	return val;
}

char get_escape_char(const char *s, int *i)
{
	char	c = s[*i];
	int	j = *i + 1;
	char	val;

switch (c) {
	case 'a':
		val = '\a';
		break;
	case 'b':
		val = '\b';
		break;
	case 't':
		val = '\t';
		break;
	case 'n':
		val = '\n';
		break;
	case 'v':
		val = '\v';
		break;
	case 'f':
		val = '\f';
		break;
	case 'r':
		val = '\r';
		break;
	case '0':
	case '1':
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
		j--; /* need to re-read the first digit as
		      * part of the octal value */
		val = get_oct_char(s, &j);
		break;
	case 'x':
		val = get_hex_char(s, &j);
		break;
	default:
		val = c;
	}

(*i) = j;
	return val;
}

int utilfdt_read_err(const char *filename, char **buffp, size_t *len)
{
	int fd = 0;	/* assume stdin */
	char *buf = NULL;
	size_t bufsize = 1024, offset = 0;
	int ret = 0;

*buffp = NULL;
	if (strcmp(filename, "-") != 0) {
		fd = open(filename, O_RDONLY);
		if (fd < 0)
			return errno;
	}

/* Loop until we have read everything */
	buf = xmalloc(bufsize);
	do {
		/* Expand the buffer to hold the next chunk */
		if (offset == bufsize) {
			bufsize *= 2;
			buf = xrealloc(buf, bufsize);
		}

ret = read(fd, &buf[offset], bufsize - offset);
		if (ret < 0) {
			ret = errno;
			break;
		}
		offset += ret;
	} while (ret != 0);

/* Clean up, including closing stdin; return errno on error */
	close(fd);
	if (ret)
		free(buf);
	else
		*buffp = buf;
	if (len)
		*len = bufsize;
	return ret;
}

char *utilfdt_read(const char *filename, size_t *len)
{
	char *buff;
	int ret = utilfdt_read_err(filename, &buff, len);

if (ret) {
		fprintf(stderr, "Couldn't open blob from '%s': %s\n", filename,
			strerror(ret));
		return NULL;
	}
	/* Successful read */
	return buff;
}

int utilfdt_write_err(const char *filename, const void *blob)
{
	int fd = 1;	/* assume stdout */
	int totalsize;
	int offset;
	int ret = 0;
	const char *ptr = blob;

if (strcmp(filename, "-") != 0) {
		fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
		if (fd < 0)
			return errno;
	}

totalsize = fdt_totalsize(blob);
	offset = 0;

while (offset < totalsize) {
		ret = write(fd, ptr + offset, totalsize - offset);
		if (ret < 0) {
			ret = -errno;
			break;
		}
		offset += ret;
	}
	/* Close the file/stdin; return errno on error */
	if (fd != 1)
		close(fd);
	return ret < 0 ? -ret : 0;
}

int utilfdt_write(const char *filename, const void *blob)
{
	int ret = utilfdt_write_err(filename, blob);

if (ret) {
		fprintf(stderr, "Couldn't write blob to '%s': %s\n", filename,
			strerror(ret));
	}
	return ret ? -1 : 0;
}

int utilfdt_decode_type(const char *fmt, int *type, int *size)
{
	int qualifier = 0;

if (!*fmt)
		return -1;

/* get the conversion qualifier */
	*size = -1;
	if (strchr("hlLb", *fmt)) {
		qualifier = *fmt++;
		if (qualifier == *fmt) {
			switch (*fmt++) {
/* TODO:		case 'l': qualifier = 'L'; break;*/
			case 'h':
				qualifier = 'b';
				break;
			}
		}
	}

/* we should now have a type */
	if ((*fmt == '\0') || !strchr("iuxs", *fmt))
		return -1;

/* convert qualifier (bhL) to byte size */
	if (*fmt != 's')
		*size = qualifier == 'b' ? 1 :
				qualifier == 'h' ? 2 :
				qualifier == 'l' ? 4 : -1;
	*type = *fmt++;

/* that should be it! */
	if (*fmt)
		return -1;
	return 0;
}

void utilfdt_print_data(const char *data, int len)
{
	int i;
	const char *s;

/* no data, don't print */
	if (len == 0)
		return;

if (util_is_printable_string(data, len)) {
		printf(" = ");

s = data;
		do {
			printf("\"%s\"", s);
			s += strlen(s) + 1;
			if (s < data + len)
				printf(", ");
		} while (s < data + len);

} else if ((len % 4) == 0) {
		const fdt32_t *cell = (const fdt32_t *)data;

printf(" = <");
		for (i = 0, len /= 4; i < len; i++)
			printf("0x%08" PRIx32 "%s", fdt32_to_cpu(cell[i]),
			       i < (len - 1) ? " " : "");
		printf(">");
	} else {
		const unsigned char *p = (const unsigned char *)data;
		printf(" = [");
		for (i = 0; i < len; i++)
			printf("%02x%s", *p++, i < len - 1 ? " " : "");
		printf("]");
	}
}

void NORETURN util_version(void)
{
	printf("Version: %s\n", DTC_VERSION);
	exit(0);
}

void NORETURN util_usage(const char *errmsg, const char *synopsis,
			 const char *short_opts,
			 struct option const long_opts[],
			 const char * const opts_help[])
{
	FILE *fp = errmsg ? stderr : stdout;
	const char a_arg[] = "<arg>";
	size_t a_arg_len = strlen(a_arg) + 1;
	size_t i;
	int optlen;

fprintf(fp,
		"Usage: %s\n"
		"\n"
		"Options: -[%s]\n", synopsis, short_opts);

/* prescan the --long opt length to auto-align */
	optlen = 0;
	for (i = 0; long_opts[i].name; ++i) {
		/* +1 is for space between --opt and help text */
		int l = strlen(long_opts[i].name) + 1;
		if (long_opts[i].has_arg == a_argument)
			l += a_arg_len;
		if (optlen < l)
			optlen = l;
	}

for (i = 0; long_opts[i].name; ++i) {
		/* helps when adding new applets or options */
		assert(opts_help[i] != NULL);

/* first output the short flag if it has one */
		if (long_opts[i].val > '~')
			fprintf(fp, "      ");
		else
			fprintf(fp, "  -%c, ", long_opts[i].val);

/* then the long flag */
		if (long_opts[i].has_arg == no_argument)
			fprintf(fp, "--%-*s", optlen, long_opts[i].name);
		else
			fprintf(fp, "--%s %s%*s", long_opts[i].name, a_arg,
				(int)(optlen - strlen(long_opts[i].name) - a_arg_len), "");

/* finally the help text */
		fprintf(fp, "%s\n", opts_help[i]);
	}

if (errmsg) {
		fprintf(fp, "\nError: %s\n", errmsg);
		exit(EXIT_FAILURE);
	} else
		exit(EXIT_SUCCESS);
}

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