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coreboot-kgpe-d16/util/lxbios/layout_file.c

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/*****************************************************************************\
* layout_file.c
* $Id: layout_file.c,v 1.3 2006/01/24 00:25:40 dsp_llnl Exp $
*****************************************************************************
* Copyright (C) 2002-2005 The Regents of the University of California.
* Produced at the Lawrence Livermore National Laboratory.
* Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
* UCRL-CODE-2003-012
* All rights reserved.
*
* This file is part of lxbios, a utility for reading/writing coreboot
* parameters and displaying information from the coreboot table.
* For details, see <http://www.llnl.gov/linux/lxbios/>.
*
* Please also read the file DISCLAIMER which is included in this software
* distribution.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (as published by the
* Free Software Foundation) version 2, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
* conditions of the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
\*****************************************************************************/
#include "common.h"
#include "layout_file.h"
#include "layout.h"
#include "cmos_lowlevel.h"
#include "reg_expr.h"
static void process_layout_file (FILE *f);
static void skip_past_start (FILE *f);
static int process_entry (FILE *f, int skip_add);
static int process_enum (FILE *f, int skip_add);
static void process_checksum_info (FILE *f);
static void skip_remaining_lines (FILE *f);
static void create_entry (cmos_entry_t *cmos_entry,
const char start_bit_str[], const char length_str[],
const char config_str[], const char config_id_str[],
const char name_str[]);
static void try_add_layout_file_entry (const cmos_entry_t *cmos_entry);
static void create_enum (cmos_enum_t *cmos_enum, const char id_str[],
const char value_str[], const char text_str[]);
static void try_add_cmos_enum (const cmos_enum_t *cmos_enum);
static void set_checksum_info (const char start_str[], const char end_str[],
const char index_str[]);
static char cmos_entry_char_value (cmos_entry_config_t config);
static int get_layout_file_line (FILE *f, char line[], int line_buf_size);
static unsigned string_to_unsigned (const char str[], const char str_name[]);
static unsigned long string_to_unsigned_long (const char str[],
const char str_name[]);
static unsigned long do_string_to_unsigned_long (const char str[],
const char str_name[],
const char blurb[]);
/* matches either a blank line or a comment line */
static const char blank_or_comment_regex[] =
/* a blank line */
"(^[[:space:]]+$)"
"|" /* or ... */
/* a line consisting of: optional whitespace followed by */
"(^[[:space:]]*"
/* a '#' character and optionally, additional characters */
"#.*$)";
static regex_t blank_or_comment_expr;
/* matches the line in a CMOS layout file indicating the start of the
* "entries" section.
*/
static const char start_entries_regex[] =
/* optional whitespace */
"^[[:space:]]*"
/* followed by "entries" */
"entries"
/* followed by optional whitespace */
"[[:space:]]*$";
static regex_t start_entries_expr;
/* matches the line in a CMOS layout file indicating the start of the
* "enumerations" section
*/
static const char start_enums_regex[] =
/* optional whitespace */
"^[[:space:]]*"
/* followed by "enumerations" */
"enumerations"
/* followed by optional whitespace */
"[[:space:]]*$";
static regex_t start_enums_expr;
/* matches the line in a CMOS layout file indicating the start of the
* "checksums" section
*/
static const char start_checksums_regex[] =
/* optional whitespace */
"^[[:space:]]*"
/* followed by "checksums" */
"checksums"
/* followed by optional whitespace */
"[[:space:]]*$";
static regex_t start_checksums_expr;
/* matches a line in a CMOS layout file specifying a CMOS entry */
static const char entries_line_regex[] =
/* optional whitespace */
"^[[:space:]]*"
/* followed by a chunk of nonwhitespace for start-bit field */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for length field */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for config field */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for config-ID field */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for name field */
"([^[:space:]]+)"
/* followed by optional whitespace */
"[[:space:]]*$";
static regex_t entries_line_expr;
/* matches a line in a CMOS layout file specifying a CMOS enumeration */
static const char enums_line_regex[] =
/* optional whitespace */
"^[[:space:]]*"
/* followed by a chunk of nonwhitespace for ID field */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for value field */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for text field */
"([^[:space:]]+)"
/* followed by optional whitespace */
"[[:space:]]*$";
static regex_t enums_line_expr;
/* matches the line in a CMOS layout file specifying CMOS checksum
* information
*/
static const char checksum_line_regex[] =
/* optional whitespace */
"^[[:space:]]*"
/* followed by "checksum" */
"checksum"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for first bit of summed area */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for last bit of summed area */
"([^[:space:]]+)"
/* followed by one or more whitespace characters */
"[[:space:]]+"
/* followed by a chunk of nonwhitespace for checksum location bit */
"([^[:space:]]+)"
/* followed by optional whitespace */
"[[:space:]]*$";
static regex_t checksum_line_expr;
static const int LINE_BUF_SIZE = 256;
static int line_num;
static const char *layout_filename = NULL;
/****************************************************************************
* set_layout_filename
*
* Set the name of the file we will obtain CMOS layout information from.
****************************************************************************/
void set_layout_filename (const char filename[])
{ layout_filename = filename; }
/****************************************************************************
* get_layout_from_file
*
* Read CMOS layout information from the user-specified CMOS layout file.
****************************************************************************/
void get_layout_from_file (void)
{ FILE *f;
assert(layout_filename != NULL);
if ((f = fopen(layout_filename, "r")) == NULL)
{ fprintf(stderr, "%s: Can not open CMOS layout file %s for reading: "
"%s\n", prog_name, layout_filename, strerror(errno));
exit(1);
}
process_layout_file(f);
fclose(f);
}
/****************************************************************************
* write_cmos_layout
*
* Write CMOS layout information to file 'f'. The output is written in the
* format that CMOS layout files adhere to.
****************************************************************************/
void write_cmos_layout (FILE *f)
{ const cmos_entry_t *cmos_entry;
const cmos_enum_t *cmos_enum;
cmos_checksum_layout_t layout;
fprintf(f, "entries\n");
for (cmos_entry = first_cmos_entry();
cmos_entry != NULL;
cmos_entry = next_cmos_entry(cmos_entry))
fprintf(f, "%u %u %c %u %s\n", cmos_entry->bit, cmos_entry->length,
cmos_entry_char_value(cmos_entry->config),
cmos_entry->config_id, cmos_entry->name);
fprintf(f, "\nenumerations\n");
for (cmos_enum = first_cmos_enum();
cmos_enum != NULL;
cmos_enum = next_cmos_enum(cmos_enum))
fprintf(f, "%u %llu %s\n", cmos_enum->config_id, cmos_enum->value,
cmos_enum->text);
layout.summed_area_start = cmos_checksum_start;
layout.summed_area_end = cmos_checksum_end;
layout.checksum_at = cmos_checksum_index;
checksum_layout_to_bits(&layout);
fprintf(f, "\nchecksums\nchecksum %u %u %u\n", layout.summed_area_start,
layout.summed_area_end, layout.checksum_at);
}
/****************************************************************************
* process_layout_file
*
* Read CMOS layout information from file 'f' and add it to our internal
* repository.
****************************************************************************/
static void process_layout_file (FILE *f)
{ compile_reg_exprs(REG_EXTENDED | REG_NEWLINE, 7,
blank_or_comment_regex, &blank_or_comment_expr,
start_entries_regex, &start_entries_expr,
entries_line_regex, &entries_line_expr,
start_enums_regex, &start_enums_expr,
enums_line_regex, &enums_line_expr,
start_checksums_regex, &start_checksums_expr,
checksum_line_regex, &checksum_line_expr);
line_num = 1;
skip_past_start(f);
/* Skip past all entries. We will process these later when we make a
* second pass through the file.
*/
while (!process_entry(f, 1));
/* Process all enums, adding them to our internal repository as we go. */
if (process_enum(f, 0))
{ fprintf(stderr, "%s: Error: CMOS layout file contains no "
"enumerations.\n", prog_name);
exit(1);
}
while (!process_enum(f, 0));
/* Go back to start of file. */
line_num = 1;
fseek(f, 0, SEEK_SET);
skip_past_start(f);
/* Process all entries, adding them to the repository as we go. We must
* add the entries after the enums, even though they appear in the layout
* file before the enums. This is because the entries are sanity checked
* against the enums as they are added.
*/
if (process_entry(f, 0))
{ fprintf(stderr, "%s: Error: CMOS layout file contains no entries.\n",
prog_name);
exit(1);
}
while (!process_entry(f, 0));
/* Skip past all enums. They have already been processed. */
while (!process_enum(f, 1));
/* Process CMOS checksum info. */
process_checksum_info(f);
/* See if there are any lines left to process. If so, verify that they are
* all either blank lines or comments.
*/
skip_remaining_lines(f);
free_reg_exprs(7, &blank_or_comment_expr, &start_entries_expr,
&entries_line_expr, &start_enums_expr,
&enums_line_expr, &start_checksums_expr,
&checksum_line_expr);
}
/****************************************************************************
* skip_past_start
*
* Skip past the line that marks the start of the "entries" section.
****************************************************************************/
static void skip_past_start (FILE *f)
{ char line[LINE_BUF_SIZE];
for (; ; line_num++)
{ if (get_layout_file_line(f, line, LINE_BUF_SIZE))
{ fprintf(stderr,
"%s: \"entries\" line not found in CMOS layout file.\n",
prog_name);
exit(1);
}
if (!regexec(&blank_or_comment_expr, line, 0, NULL, 0))
continue;
if (!regexec(&start_entries_expr, line, 0, NULL, 0))
break;
fprintf(stderr, "%s: Syntax error on line %d of CMOS layout file. "
"\"entries\" line expected.\n", prog_name, line_num);
exit(1);
}
line_num++;
}
/****************************************************************************
* process_entry
*
* Get an entry from "entries" section of file and add it to our repository
* of layout information. Return 0 if an entry was found and processed.
* Return 1 if there are no more entries.
****************************************************************************/
static int process_entry (FILE *f, int skip_add)
{ static const size_t N_MATCHES = 6;
char line[LINE_BUF_SIZE];
regmatch_t match[N_MATCHES];
cmos_entry_t cmos_entry;
int result;
result = 1;
for (; ; line_num++)
{ if (get_layout_file_line(f, line, LINE_BUF_SIZE))
{ fprintf(stderr,
"%s: Unexpected end of CMOS layout file reached while "
"reading \"entries\" section.\n", prog_name);
exit(1);
}
if (!regexec(&blank_or_comment_expr, line, 0, NULL, 0))
continue;
if (regexec(&entries_line_expr, line, N_MATCHES, match, 0))
{ if (regexec(&start_enums_expr, line, 0, NULL, 0))
{ fprintf(stderr, "%s: Syntax error on line %d of CMOS layout "
"file.\n", prog_name, line_num);
exit(1);
}
break; /* start of enumerations reached: no more entries */
}
result = 0; /* next layout entry found */
if (skip_add)
break;
line[match[1].rm_eo] = '\0';
line[match[2].rm_eo] = '\0';
line[match[3].rm_eo] = '\0';
line[match[4].rm_eo] = '\0';
line[match[5].rm_eo] = '\0';
create_entry(&cmos_entry, &line[match[1].rm_so], &line[match[2].rm_so],
&line[match[3].rm_so], &line[match[4].rm_so],
&line[match[5].rm_so]);
try_add_layout_file_entry(&cmos_entry);
break;
}
line_num++;
return result;
}
/****************************************************************************
* process_enum
*
* Get an enuneration from "enumerations" section of file and add it to our
* repository of layout information. Return 0 if an enumeration was found
* and processed. Return 1 if there are no more enumerations.
****************************************************************************/
static int process_enum (FILE *f, int skip_add)
{ static const size_t N_MATCHES = 4;
char line[LINE_BUF_SIZE];
regmatch_t match[N_MATCHES];
cmos_enum_t cmos_enum;
int result;
result = 1;
for (; ; line_num++)
{ if (get_layout_file_line(f, line, LINE_BUF_SIZE))
{ fprintf(stderr,
"%s: Unexpected end of CMOS layout file reached while "
"reading \"enumerations\" section.\n", prog_name);
exit(1);
}
if (!regexec(&blank_or_comment_expr, line, 0, NULL, 0))
continue;
if (regexec(&enums_line_expr, line, N_MATCHES, match, 0))
{ if (regexec(&start_checksums_expr, line, 0, NULL, 0))
{ fprintf(stderr, "%s: Syntax error on line %d of CMOS layout "
"file.\n", prog_name, line_num);
exit(1);
}
break; /* start of checksums reached: no more enumerations */
}
result = 0; /* next layout enumeration found */
if (skip_add)
break;
line[match[1].rm_eo] = '\0';
line[match[2].rm_eo] = '\0';
line[match[3].rm_eo] = '\0';
create_enum(&cmos_enum, &line[match[1].rm_so], &line[match[2].rm_so],
&line[match[3].rm_so]);
try_add_cmos_enum(&cmos_enum);
break;
}
line_num++;
return result;
}
/****************************************************************************
* process_checksum_info
*
* Get line conatining CMOS checksum information.
****************************************************************************/
static void process_checksum_info (FILE *f)
{ static const size_t N_MATCHES = 4;
char line[LINE_BUF_SIZE];
regmatch_t match[N_MATCHES];
for (; ; line_num++)
{ if (get_layout_file_line(f, line, LINE_BUF_SIZE))
{ fprintf(stderr,
"%s: Unexpected end of CMOS layout file reached while "
"reading \"checksums\" section.\n", prog_name);
exit(1);
}
if (!regexec(&blank_or_comment_expr, line, 0, NULL, 0))
continue;
if (regexec(&checksum_line_expr, line, N_MATCHES, match, 0))
{ fprintf(stderr, "%s: Syntax error on line %d of CMOS layout "
"file. \"checksum\" line expected.\n", prog_name,
line_num);
exit(1);
}
/* checksum line found */
line[match[1].rm_eo] = '\0';
line[match[2].rm_eo] = '\0';
line[match[3].rm_eo] = '\0';
set_checksum_info(&line[match[1].rm_so], &line[match[2].rm_so],
&line[match[3].rm_so]);
break;
}
}
/****************************************************************************
* skip_remaining_lines
*
* Get any remaining lines of unprocessed input. Complain if we find a line
* that contains anything other than comments and whitespace.
****************************************************************************/
static void skip_remaining_lines (FILE *f)
{ char line[LINE_BUF_SIZE];
for (line_num++;
get_layout_file_line(f, line, LINE_BUF_SIZE) == OK;
line_num++)
{ if (regexec(&blank_or_comment_expr, line, 0, NULL, 0))
{ fprintf(stderr, "%s: Syntax error on line %d of CMOS layout file: "
"Only comments and/or whitespace allowed after "
"\"checksum\" line.\n", prog_name, line_num);
exit(1);
}
}
}
/****************************************************************************
* create_entry
*
* Create a CMOS entry structure representing the given information. Perform
* sanity checking on input parameters.
****************************************************************************/
static void create_entry (cmos_entry_t *cmos_entry,
const char start_bit_str[], const char length_str[],
const char config_str[], const char config_id_str[],
const char name_str[])
{ cmos_entry->bit = string_to_unsigned(start_bit_str, "start-bit");
cmos_entry->length = string_to_unsigned(length_str, "length");
if (config_str[1] != '\0')
goto bad_config_str;
switch (config_str[0])
{ case 'e':
cmos_entry->config = CMOS_ENTRY_ENUM;
break;
case 'h':
cmos_entry->config = CMOS_ENTRY_HEX;
break;
case 'r':
cmos_entry->config = CMOS_ENTRY_RESERVED;
break;
default:
goto bad_config_str;
}
cmos_entry->config_id = string_to_unsigned(config_id_str, "config-ID");
if (strlen(name_str) >= CMOS_MAX_NAME_LENGTH)
{ fprintf(stderr, "%s: Error on line %d of CMOS layout file: name too "
"long (max length is %d).\n", prog_name, line_num,
CMOS_MAX_NAME_LENGTH - 1);
exit(1);
}
strcpy(cmos_entry->name, name_str);
return;
bad_config_str:
fprintf(stderr, "%s: Error on line %d of CMOS layout file: 'e', 'h', or "
"'r' expected for config value.\n", prog_name, line_num);
exit(1);
}
/****************************************************************************
* try_add_layout_file_entry
*
* Attempt to add the given CMOS entry to our internal repository. Exit with
* an error message on failure.
****************************************************************************/
static void try_add_layout_file_entry (const cmos_entry_t *cmos_entry)
{ const cmos_entry_t *conflict;
switch (add_cmos_entry(cmos_entry, &conflict))
{ case OK:
return;
case CMOS_AREA_OUT_OF_RANGE:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. Area "
"covered by entry %s is out of range.\n", prog_name,
line_num, cmos_entry->name);
break;
case CMOS_AREA_TOO_WIDE:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. Area "
"covered by entry %s is too wide.\n", prog_name, line_num,
cmos_entry->name);
break;
case LAYOUT_ENTRY_OVERLAP:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. Layouts "
"overlap for entries %s and %s.\n", prog_name, line_num,
cmos_entry->name, conflict->name);
break;
case LAYOUT_ENTRY_BAD_LENGTH:
/* Silently ignore entries with zero length. Although this should
* never happen in practice, we should handle the case in a
* reasonable manner just to be safe.
*/
return;
default:
BUG();
}
exit(1);
}
/****************************************************************************
* create_enum
*
* Create a CMOS enumeration structure representing the given information.
* Perform sanity checking on input parameters.
****************************************************************************/
static void create_enum (cmos_enum_t *cmos_enum, const char id_str[],
const char value_str[], const char text_str[])
{ cmos_enum->config_id = string_to_unsigned(id_str, "ID");
cmos_enum->value = string_to_unsigned_long(value_str, "value");
if (strlen(text_str) >= CMOS_MAX_TEXT_LENGTH)
{ fprintf(stderr, "%s: Error on line %d of CMOS layout file: text too "
"long (max length is %d).\n", prog_name, line_num,
CMOS_MAX_TEXT_LENGTH - 1);
exit(1);
}
strcpy(cmos_enum->text, text_str);
}
/****************************************************************************
* try_add_cmos_enum
*
* Attempt to add the given CMOS enum to our internal repository. Exit with
* an error message on failure.
****************************************************************************/
static void try_add_cmos_enum (const cmos_enum_t *cmos_enum)
{ switch (add_cmos_enum(cmos_enum))
{ case OK:
return;
case LAYOUT_DUPLICATE_ENUM:
fprintf(stderr, "%s: Error on line %d of CMOS layout file: "
"Enumeration found with duplicate ID/value combination.\n",
prog_name, line_num);
break;
default:
BUG();
}
exit(1);
}
/****************************************************************************
* set_checksum_info
*
* Set CMOS checksum information according to input parameters and perform
* sanity checking on input parameters.
****************************************************************************/
static void set_checksum_info (const char start_str[], const char end_str[],
const char index_str[])
{ cmos_checksum_layout_t layout;
/* These are bit positions that we want to convert to byte positions. */
layout.summed_area_start =
string_to_unsigned(start_str, "CMOS checksummed area start");
layout.summed_area_end =
string_to_unsigned(end_str, "CMOS checksummed area end");
layout.checksum_at =
string_to_unsigned(index_str, "CMOS checksum location");
switch (checksum_layout_to_bytes(&layout))
{ case OK:
break;
case LAYOUT_SUMMED_AREA_START_NOT_ALIGNED:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. CMOS "
"checksummed area start is not byte-aligned.\n", prog_name,
line_num);
goto fail;
case LAYOUT_SUMMED_AREA_END_NOT_ALIGNED:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. CMOS "
"checksummed area end is not byte-aligned.\n", prog_name,
line_num);
goto fail;
case LAYOUT_CHECKSUM_LOCATION_NOT_ALIGNED:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. CMOS "
"checksum location is not byte-aligned.\n", prog_name,
line_num);
goto fail;
case LAYOUT_INVALID_SUMMED_AREA:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. CMOS "
"checksummed area end must be greater than CMOS checksummed "
"area start.\n", prog_name, line_num);
goto fail;
case LAYOUT_CHECKSUM_OVERLAPS_SUMMED_AREA:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. CMOS "
"checksum overlaps checksummed area.\n", prog_name,
line_num);
goto fail;
case LAYOUT_SUMMED_AREA_OUT_OF_RANGE:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. CMOS "
"checksummed area out of range.\n", prog_name, line_num);
goto fail;
case LAYOUT_CHECKSUM_LOCATION_OUT_OF_RANGE:
fprintf(stderr, "%s: Error on line %d of CMOS layout file. CMOS "
"checksum location out of range.\n", prog_name, line_num);
goto fail;
default:
BUG();
}
cmos_checksum_start = layout.summed_area_start;
cmos_checksum_end = layout.summed_area_end;
cmos_checksum_index = layout.checksum_at;
return;
fail:
exit(1);
}
/****************************************************************************
* cmos_entry_char_value
*
* Return the character representation of 'config'.
****************************************************************************/
static char cmos_entry_char_value (cmos_entry_config_t config)
{ switch (config)
{ case CMOS_ENTRY_ENUM:
return 'e';
case CMOS_ENTRY_HEX:
return 'h';
case CMOS_ENTRY_RESERVED:
return 'r';
default:
BUG();
}
return 0; /* not reached */
}
/****************************************************************************
* get_layout_file_line
*
* Get a line of input from file 'f'. Store result in 'line' which is an
* array of 'line_buf_size' bytes. Return OK on success or an error code on
* failure.
****************************************************************************/
static int get_layout_file_line (FILE *f, char line[], int line_buf_size)
{ switch (get_line_from_file(f, line, line_buf_size))
{ case OK:
return OK;
case LINE_EOF:
return LINE_EOF;
case LINE_TOO_LONG:
fprintf(stderr, "%s: Error on line %d of CMOS layout file: Maximum "
"line length exceeded. Max is %d characters.\n", prog_name,
line_num, line_buf_size - 2);
break;
}
exit(1);
return 1; /* keep compiler happy */
}
/****************************************************************************
* string_to_unsigned
*
* Convert the string 'str' to an unsigned and return the result.
****************************************************************************/
static unsigned string_to_unsigned (const char str[], const char str_name[])
{ unsigned long n;
unsigned z;
n = do_string_to_unsigned_long(str, str_name, "");
if ((z = (unsigned) n) != n)
{ /* This could happen on an architecture in which sizeof(unsigned) <
* sizeof(unsigned long).
*/
fprintf(stderr, "%s: Error on line %d of CMOS layout file: %s value is "
"out of range.\n", prog_name, line_num, str_name);
exit(1);
}
return z;
}
/****************************************************************************
* string_to_unsigned_long
*
* Convert the string 'str' to an unsigned long and return the result.
****************************************************************************/
static unsigned long string_to_unsigned_long (const char str[],
const char str_name[])
{ return do_string_to_unsigned_long(str, str_name, " long"); }
/****************************************************************************
* do_string_to_unsigned_long
*
* Convert the string 'str' to an unsigned long and return the result. Exit
* with an appropriate error message on failure.
****************************************************************************/
static unsigned long do_string_to_unsigned_long (const char str[],
const char str_name[],
const char blurb[])
{ unsigned long n;
char *p;
n = strtoul(str, &p, 0);
if (*p != '\0')
{ fprintf(stderr, "%s: Error on line %d of CMOS layout file: %s is not a "
"valid unsigned%s integer.\n", prog_name,
line_num, str_name, blurb);
exit(1);
}
return n;
}
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