diff options
Diffstat (limited to 'compat/strtoull.c')
| -rw-r--r-- | compat/strtoull.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/compat/strtoull.c b/compat/strtoull.c index 8658eb0..af508d0 100644 --- a/compat/strtoull.c +++ b/compat/strtoull.c @@ -9,7 +9,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: strtoull.c,v 1.2 2002/02/15 14:28:47 dkf Exp $ + * RCS: @(#) $Id: strtoull.c,v 1.3 2002/02/15 23:42:12 kennykb Exp $ */ #include "tcl.h" @@ -149,6 +149,9 @@ strtoull(string, endPtr, base) goto overflow; } result = shifted + digit; + if ( result < shifted ) { + goto overflow; + } anyDigits = 1; } } else if (base == 10) { @@ -162,6 +165,9 @@ strtoull(string, endPtr, base) goto overflow; } result = shifted + digit; + if ( result < shifted ) { + goto overflow; + } anyDigits = 1; } } else if (base == 16) { @@ -179,16 +185,19 @@ strtoull(string, endPtr, base) goto overflow; } result = shifted + digit; + if ( result < shifted ) { + goto overflow; + } anyDigits = 1; } - } else { + } else if ( base >= 2 && base <= 36 ) { for ( ; ; p += 1) { digit = *p - '0'; if (digit > ('z' - '0')) { break; } digit = cvtIn[digit]; - if (digit >= base) { + if (digit >= (unsigned) base) { break; } shifted = result * base; @@ -196,6 +205,9 @@ strtoull(string, endPtr, base) goto overflow; } result = shifted + digit; + if ( result < shifted ) { + goto overflow; + } anyDigits = 1; } } @@ -235,7 +247,7 @@ strtoull(string, endPtr, base) break; } digit = cvtIn[digit]; - if (digit >= base) { + if (digit >= (unsigned) base) { break; } } |