diff options
Diffstat (limited to 'lib/strtox.c')
| -rw-r--r-- | lib/strtox.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/strtox.c b/lib/strtox.c new file mode 100644 index 0000000000..882865b45d --- /dev/null +++ b/lib/strtox.c @@ -0,0 +1,68 @@ +#include <common.h> +#include <linux/ctype.h> + +unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base) +{ + unsigned long result = 0,value; + + if (*cp == '0') { + cp++; + if ((*cp == 'x') && isxdigit(cp[1])) { + base = 16; + cp++; + } + if (!base) { + base = 8; + } + } + if (!base) { + base = 10; + } + while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp) + ? toupper(*cp) : *cp)-'A'+10) < base) { + result = result*base + value; + cp++; + } + if (endp) + *endp = (char *)cp; + return result; +} +EXPORT_SYMBOL(simple_strtoul); + +long simple_strtol(const char *cp,char **endp,unsigned int base) +{ + if(*cp=='-') + return -simple_strtoul(cp+1,endp,base); + return simple_strtoul(cp,endp,base); +} +EXPORT_SYMBOL(simple_strtol); + +unsigned long long simple_strtoull (const char *cp, char **endp, unsigned int base) +{ + unsigned long long result = 0, value; + + if (*cp == '0') { + cp++; + if ((*cp == 'x') && isxdigit (cp[1])) { + base = 16; + cp++; + } + if (!base) { + base = 8; + } + } + if (!base) { + base = 10; + } + while (isxdigit (*cp) && (value = isdigit (*cp) + ? *cp - '0' + : (islower (*cp) ? toupper (*cp) : *cp) - 'A' + 10) < base) { + result = result * base + value; + cp++; + } + if (endp) + *endp = (char *) cp; + return result; +} +EXPORT_SYMBOL(simple_strtoull); + |