Contributors: 24
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds (pre-git) |
252 |
28.87% |
14 |
33.33% |
| Rusty Russell |
158 |
18.10% |
3 |
7.14% |
| Derek Fults |
107 |
12.26% |
1 |
2.38% |
| Andy Shevchenko |
79 |
9.05% |
4 |
9.52% |
| Andrew Morton |
55 |
6.30% |
1 |
2.38% |
| Dave Young |
44 |
5.04% |
1 |
2.38% |
| Gui Hecheng |
31 |
3.55% |
1 |
2.38% |
| Randy Dunlap |
30 |
3.44% |
1 |
2.38% |
| Matt Fleming |
30 |
3.44% |
1 |
2.38% |
| Robert P. J. Day |
18 |
2.06% |
1 |
2.38% |
| Baoquan He |
12 |
1.37% |
1 |
2.38% |
| Nick Desaulniers |
10 |
1.15% |
1 |
2.38% |
| Ilya V. Matveychikov |
9 |
1.03% |
1 |
2.38% |
| Borislav Petkov |
8 |
0.92% |
1 |
2.38% |
| Peter Oberparleiter |
7 |
0.80% |
1 |
2.38% |
| Steven Rostedt |
5 |
0.57% |
1 |
2.38% |
| Neel Natu |
4 |
0.46% |
1 |
2.38% |
| Linus Torvalds |
3 |
0.34% |
1 |
2.38% |
| Masahiro Yamada |
3 |
0.34% |
1 |
2.38% |
| Thomas Gleixner |
2 |
0.23% |
1 |
2.38% |
| Gustavo A. R. Silva |
2 |
0.23% |
1 |
2.38% |
| André Goddard Rosa |
2 |
0.23% |
1 |
2.38% |
| Jeremy Fitzhardinge |
1 |
0.11% |
1 |
2.38% |
| Paul Gortmaker |
1 |
0.11% |
1 |
2.38% |
| Total |
873 |
|
42 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/lib/cmdline.c
* Helper functions generally used for parsing kernel command line
* and module options.
*
* Code and copyrights come from init/main.c and arch/i386/kernel/setup.c.
*
* GNU Indent formatting options for this file: -kr -i8 -npsl -pcs
*/
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/ctype.h>
/*
* If a hyphen was found in get_option, this will handle the
* range of numbers, M-N. This will expand the range and insert
* the values[M, M+1, ..., N] into the ints array in get_options.
*/
static int get_range(char **str, int *pint, int n)
{
int x, inc_counter, upper_range;
(*str)++;
upper_range = simple_strtol((*str), NULL, 0);
inc_counter = upper_range - *pint;
for (x = *pint; n && x < upper_range; x++, n--)
*pint++ = x;
return inc_counter;
}
/**
* get_option - Parse integer from an option string
* @str: option string
* @pint: (optional output) integer value parsed from @str
*
* Read an int from an option string; if available accept a subsequent
* comma as well.
*
* When @pint is NULL the function can be used as a validator of
* the current option in the string.
*
* Return values:
* 0 - no int in string
* 1 - int found, no subsequent comma
* 2 - int found including a subsequent comma
* 3 - hyphen found to denote a range
*
* Leading hyphen without integer is no integer case, but we consume it
* for the sake of simplification.
*/
int get_option(char **str, int *pint)
{
char *cur = *str;
int value;
if (!cur || !(*cur))
return 0;
if (*cur == '-')
value = -simple_strtoull(++cur, str, 0);
else
value = simple_strtoull(cur, str, 0);
if (pint)
*pint = value;
if (cur == *str)
return 0;
if (**str == ',') {
(*str)++;
return 2;
}
if (**str == '-')
return 3;
return 1;
}
EXPORT_SYMBOL(get_option);
/**
* get_options - Parse a string into a list of integers
* @str: String to be parsed
* @nints: size of integer array
* @ints: integer array (must have room for at least one element)
*
* This function parses a string containing a comma-separated
* list of integers, a hyphen-separated range of _positive_ integers,
* or a combination of both. The parse halts when the array is
* full, or when no more numbers can be retrieved from the
* string.
*
* When @nints is 0, the function just validates the given @str and
* returns the amount of parseable integers as described below.
*
* Returns:
*
* The first element is filled by the number of collected integers
* in the range. The rest is what was parsed from the @str.
*
* Return value is the character in the string which caused
* the parse to end (typically a null terminator, if @str is
* completely parseable).
*/
char *get_options(const char *str, int nints, int *ints)
{
bool validate = (nints == 0);
int res, i = 1;
while (i < nints || validate) {
int *pint = validate ? ints : ints + i;
res = get_option((char **)&str, pint);
if (res == 0)
break;
if (res == 3) {
int n = validate ? 0 : nints - i;
int range_nums;
range_nums = get_range((char **)&str, pint, n);
if (range_nums < 0)
break;
/*
* Decrement the result by one to leave out the
* last number in the range. The next iteration
* will handle the upper number in the range
*/
i += (range_nums - 1);
}
i++;
if (res == 1)
break;
}
ints[0] = i - 1;
return (char *)str;
}
EXPORT_SYMBOL(get_options);
/**
* memparse - parse a string with mem suffixes into a number
* @ptr: Where parse begins
* @retptr: (output) Optional pointer to next char after parse completes
*
* Parses a string into a number. The number stored at @ptr is
* potentially suffixed with K, M, G, T, P, E.
*/
unsigned long long memparse(const char *ptr, char **retptr)
{
char *endptr; /* local pointer to end of parsed string */
unsigned long long ret = simple_strtoull(ptr, &endptr, 0);
switch (*endptr) {
case 'E':
case 'e':
ret <<= 10;
fallthrough;
case 'P':
case 'p':
ret <<= 10;
fallthrough;
case 'T':
case 't':
ret <<= 10;
fallthrough;
case 'G':
case 'g':
ret <<= 10;
fallthrough;
case 'M':
case 'm':
ret <<= 10;
fallthrough;
case 'K':
case 'k':
ret <<= 10;
endptr++;
fallthrough;
default:
break;
}
if (retptr)
*retptr = endptr;
return ret;
}
EXPORT_SYMBOL(memparse);
/**
* parse_option_str - Parse a string and check an option is set or not
* @str: String to be parsed
* @option: option name
*
* This function parses a string containing a comma-separated list of
* strings like a=b,c.
*
* Return true if there's such option in the string, or return false.
*/
bool parse_option_str(const char *str, const char *option)
{
while (*str) {
if (!strncmp(str, option, strlen(option))) {
str += strlen(option);
if (!*str || *str == ',')
return true;
}
while (*str && *str != ',')
str++;
if (*str == ',')
str++;
}
return false;
}
/*
* Parse a string to get a param value pair.
* You can use " around spaces, but can't escape ".
* Hyphens and underscores equivalent in parameter names.
*/
char *next_arg(char *args, char **param, char **val)
{
unsigned int i, equals = 0;
int in_quote = 0, quoted = 0;
if (*args == '"') {
args++;
in_quote = 1;
quoted = 1;
}
for (i = 0; args[i]; i++) {
if (isspace(args[i]) && !in_quote)
break;
if (equals == 0) {
if (args[i] == '=')
equals = i;
}
if (args[i] == '"')
in_quote = !in_quote;
}
*param = args;
if (!equals)
*val = NULL;
else {
args[equals] = '\0';
*val = args + equals + 1;
/* Don't include quotes in value. */
if (**val == '"') {
(*val)++;
if (args[i-1] == '"')
args[i-1] = '\0';
}
}
if (quoted && i > 0 && args[i-1] == '"')
args[i-1] = '\0';
if (args[i]) {
args[i] = '\0';
args += i + 1;
} else
args += i;
/* Chew up trailing spaces. */
return skip_spaces(args);
}
EXPORT_SYMBOL(next_arg);