diff options
Diffstat (limited to 'uts/strtol_wrap.c')
| -rw-r--r-- | uts/strtol_wrap.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/uts/strtol_wrap.c b/uts/strtol_wrap.c deleted file mode 100644 index 24bb05542f..0000000000 --- a/uts/strtol_wrap.c +++ /dev/null @@ -1,174 +0,0 @@ -/* A wrapper around strtol() and strtoul() to correct some - * "out of bounds" cases that don't work well on at least UTS. - * If a value is Larger than the max, strto[u]l should return - * the max value, and set errno to ERANGE - * The same if a value is smaller than the min value (only - * relevant for strtol(); not strtoul()), except the minimum - * value is returned (and errno == ERANGE). - */ - -#include <ctype.h> -#include <string.h> -#include <sys/errno.h> -#include <stdlib.h> - -extern int errno; - -#undef I32 -#undef U32 - -#define I32 int -#define U32 unsigned int - -struct base_info { - char *ValidChars; - - char *Ulong_max_str; - char *Long_max_str; - char *Long_min_str; /* Absolute value */ - - int Ulong_max_str_len; - int Long_max_str_len; - int Long_min_str_len; /* Absolute value */ - - U32 Ulong_max; - I32 Long_max; - I32 Long_min; /* NOT Absolute value */ -}; -static struct base_info Base_info[37]; - -static struct base_info Base_info_16 = { - "0123456789abcdefABCDEF", - "4294967295", "2147483648" /* <== ABS VAL */ , "2147483647", - 10, 10, 10, - 4294967295, 2147483647, - 2147483648, -}; - -static struct base_info Base_info_10 = { - "0123456789", - "4294967295", "2147483648" /* <== ABS VAL */ , "2147483647", - 10, 10, 10, - 4294967295, 2147483647, - 2147483648, -}; - - /* Used eventually (if this is fully developed) to hold info - * for processing bases 2-36. So that we can just plug the - * base in as a selector for its info, we sacrifice - * Base_info[0] and Base_info[1] (unless they are used - * at some point for special information). - */ - -/* This may be replaced later by something more universal */ -static void -init_Base_info() -{ - if(Base_info[10].ValidChars) return; - Base_info[10] = Base_info_10; - Base_info[16] = Base_info_16; -} - -unsigned int -strtoul_wrap32(char *s, char **pEnd, int base) -{ - int Len; - int isNegated = 0; - char *sOrig = s; - - init_Base_info(); - - while(*s && isspace(*s)) ++s; - - if(*s == '-') { - ++isNegated; - ++s; - while(*s && isspace(*s)) ++s; - } - if(base == 0) { - if(*s == '0') { - if(s[1] == 'x' || s[1] == 'X') { - s += 2; - base = 16; - } else { - ++s; - base = 8; - } - } else if(isdigit(*s)) { - base = 10; - } - } - if(base != 10) { - return strtoul(sOrig, pEnd, base); - } - - Len = strspn(s, Base_info[base].ValidChars); - - if(Len > Base_info[base].Ulong_max_str_len - || - (Len == Base_info[base].Ulong_max_str_len - && - strncmp(Base_info[base].Ulong_max_str, s, Len) < 0) - ) { - /* In case isNegated is set - what to do?? */ - /* Mightn't we say a negative number is ERANGE for strtoul? */ - errno = ERANGE; - return Base_info[base].Ulong_max; - } - - return strtoul(sOrig, pEnd, base); -} - -int -strtol_wrap32(char *s, char **pEnd, int base) -{ - int Len; - int isNegated = 0; - char *sOrig = s; - - init_Base_info(); - - while(*s && isspace(*s)) ++s; - - if(*s == '-') { - ++isNegated; - ++s; - while(*s && isspace(*s)) ++s; - } - if(base == 0) { - if(*s == '0') { - if(s[1] == 'x' || s[1] == 'X') { - s += 2; - base = 16; - } else { - ++s; - base = 8; - } - } else if(isdigit(*s)) { - base = 10; - } - } - if(base != 10) { - return strtol(sOrig, pEnd, base); - } - - Len = strspn(s, Base_info[base].ValidChars); - - if(Len > Base_info[base].Long_max_str_len - || - (!isNegated && Len == Base_info[base].Long_max_str_len - && - strncmp(Base_info[base].Long_max_str, s, Len) < 0) - || - (isNegated && Len == Base_info[base].Long_min_str_len - && - strncmp(Base_info[base].Long_min_str, s, Len) < 0) - ) { - /* In case isNegated is set - what to do?? */ - /* Mightn't we say a negative number is ERANGE for strtol? */ - errno = ERANGE; - return(isNegated ? Base_info[base].Long_min - : - Base_info[base].Long_min); - } - - return strtol(sOrig, pEnd, base); -} |