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https://github.com/brain-hackers/u-boot-brain
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b87b0d8d79
While 1kB or 1kiB will be parsed correctly, 1k will return the right amount, but the metric suffix will not be escaped once the char pointer updated. Fix this situation by simplifying the move of the endp pointer. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Stefan Roese <sr@denx.de>
166 lines
3.0 KiB
C
166 lines
3.0 KiB
C
/*
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* linux/lib/vsprintf.c
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*
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* Copyright (C) 1991, 1992 Linus Torvalds
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*/
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/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
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/*
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* Wirzenius wrote this portably, Torvalds fucked it up :-)
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*/
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#include <common.h>
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#include <errno.h>
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#include <linux/ctype.h>
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/* from lib/kstrtox.c */
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static const char *_parse_integer_fixup_radix(const char *s, unsigned int *base)
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{
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if (*base == 0) {
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if (s[0] == '0') {
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if (tolower(s[1]) == 'x' && isxdigit(s[2]))
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*base = 16;
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else
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*base = 8;
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} else
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*base = 10;
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}
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if (*base == 16 && s[0] == '0' && tolower(s[1]) == 'x')
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s += 2;
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return s;
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}
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unsigned long simple_strtoul(const char *cp, char **endp,
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unsigned int base)
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{
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unsigned long result = 0;
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unsigned long value;
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cp = _parse_integer_fixup_radix(cp, &base);
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while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
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? toupper(*cp) : *cp)-'A'+10) < base) {
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result = result*base + value;
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cp++;
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}
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if (endp)
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*endp = (char *)cp;
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return result;
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}
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int strict_strtoul(const char *cp, unsigned int base, unsigned long *res)
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{
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char *tail;
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unsigned long val;
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size_t len;
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*res = 0;
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len = strlen(cp);
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if (len == 0)
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return -EINVAL;
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val = simple_strtoul(cp, &tail, base);
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if (tail == cp)
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return -EINVAL;
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if ((*tail == '\0') ||
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((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) {
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*res = val;
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return 0;
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}
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return -EINVAL;
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}
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long simple_strtol(const char *cp, char **endp, unsigned int base)
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{
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if (*cp == '-')
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return -simple_strtoul(cp + 1, endp, base);
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return simple_strtoul(cp, endp, base);
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}
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unsigned long ustrtoul(const char *cp, char **endp, unsigned int base)
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{
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unsigned long result = simple_strtoul(cp, endp, base);
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switch (tolower(**endp)) {
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case 'g':
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result *= 1024;
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/* fall through */
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case 'm':
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result *= 1024;
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/* fall through */
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case 'k':
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result *= 1024;
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(*endp)++;
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if (**endp == 'i')
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(*endp)++;
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if (**endp == 'B')
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(*endp)++;
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}
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return result;
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}
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unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base)
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{
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unsigned long long result = simple_strtoull(cp, endp, base);
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switch (tolower(**endp)) {
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case 'g':
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result *= 1024;
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/* fall through */
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case 'm':
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result *= 1024;
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/* fall through */
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case 'k':
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result *= 1024;
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(*endp)++;
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if (**endp == 'i')
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(*endp)++;
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if (**endp == 'B')
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(*endp)++;
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}
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return result;
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}
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unsigned long long simple_strtoull(const char *cp, char **endp,
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unsigned int base)
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{
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unsigned long long result = 0, value;
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cp = _parse_integer_fixup_radix(cp, &base);
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while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp - '0'
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: (islower(*cp) ? toupper(*cp) : *cp) - 'A' + 10) < base) {
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result = result * base + value;
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cp++;
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}
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if (endp)
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*endp = (char *) cp;
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return result;
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}
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long trailing_strtoln(const char *str, const char *end)
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{
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const char *p;
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if (!end)
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end = str + strlen(str);
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if (isdigit(end[-1])) {
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for (p = end - 1; p > str; p--) {
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if (!isdigit(*p))
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return simple_strtoul(p + 1, NULL, 10);
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}
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}
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return -1;
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}
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long trailing_strtol(const char *str)
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{
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return trailing_strtoln(str, NULL);
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}
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