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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <ctype.h>
#include <stdlib.h>
#include <strings.h>
#define HIDE_EC_STDLIB
#include "common.h"
#include "util.h"
/* Int and Long are same size, just forward to existing Long implementation */
int strtoi(const char *nptr, char **endptr, int base)
{
return strtol(nptr, endptr, base);
}
BUILD_ASSERT(sizeof(int) == sizeof(long));
int strcasecmp(const char *s1, const char *s2)
{
int diff;
do {
diff = tolower(*s1) - tolower(*s2);
if (diff)
return diff;
} while (*(s1++) && *(s2++));
return 0;
}
int parse_bool(const char *s, int *dest)
{
/* off, disable, false, no */
if (!strcasecmp(s, "off") || !strncasecmp(s, "dis", 3) ||
tolower(*s) == 'f' || tolower(*s) == 'n') {
*dest = 0;
return 1;
}
/* on, enable, true, yes */
if (!strcasecmp(s, "on") || !strncasecmp(s, "ena", 3) ||
tolower(*s) == 't' || tolower(*s) == 'y') {
*dest = 1;
return 1;
}
/* dunno */
return 0;
}
static int find_base(int base, int *c, const char **nptr)
{
if ((base == 0 || base == 16) && *c == '0' &&
(**nptr == 'x' || **nptr == 'X')) {
*c = (*nptr)[1];
(*nptr) += 2;
base = 16;
} else if (base == 0) {
base = *c == '0' ? 8 : 10;
}
return base;
}
unsigned long long int strtoull(const char *nptr, char **endptr, int base)
{
uint64_t result = 0;
int c = '\0';
while ((c = *nptr++) && isspace(c))
;
if (c == '+') {
c = *nptr++;
} else if (c == '-') {
if (endptr)
*endptr = (char *)nptr - 1;
return result;
}
base = find_base(base, &c, &nptr);
while (c) {
if (c >= '0' && c < '0' + MIN(base, 10))
result = result * base + (c - '0');
else if (c >= 'A' && c < 'A' + base - 10)
result = result * base + (c - 'A' + 10);
else if (c >= 'a' && c < 'a' + base - 10)
result = result * base + (c - 'a' + 10);
else
break;
c = *nptr++;
}
if (endptr)
*endptr = (char *)nptr - 1;
return result;
}
BUILD_ASSERT(sizeof(unsigned long long int) == sizeof(uint64_t));
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