diff options
Diffstat (limited to 'src/lib/libc/stdlib/strtouq.c')
| -rw-r--r-- | src/lib/libc/stdlib/strtouq.c | 30 | 
1 files changed, 15 insertions, 15 deletions
diff --git a/src/lib/libc/stdlib/strtouq.c b/src/lib/libc/stdlib/strtouq.c index cc647d8d28..3ab2c232dd 100644 --- a/src/lib/libc/stdlib/strtouq.c +++ b/src/lib/libc/stdlib/strtouq.c  | |||
| @@ -37,9 +37,9 @@ static char sccsid[] = "@(#)strtouq.c 5.1 (Berkeley) 6/26/92"; | |||
| 37 | 37 | ||
| 38 | #include <sys/types.h> | 38 | #include <sys/types.h> | 
| 39 | 39 | ||
| 40 | #include <limits.h> | ||
| 41 | #include <errno.h> | ||
| 42 | #include <ctype.h> | 40 | #include <ctype.h> | 
| 41 | #include <errno.h> | ||
| 42 | #include <limits.h> | ||
| 43 | #include <stdlib.h> | 43 | #include <stdlib.h> | 
| 44 | 44 | ||
| 45 | /* | 45 | /* | 
| @@ -54,10 +54,9 @@ strtouq(nptr, endptr, base) | |||
| 54 | char **endptr; | 54 | char **endptr; | 
| 55 | register int base; | 55 | register int base; | 
| 56 | { | 56 | { | 
| 57 | register const char *s = nptr; | 57 | register const char *s; | 
| 58 | register u_quad_t acc; | 58 | register u_quad_t acc, cutoff; | 
| 59 | register int c; | 59 | register int c; | 
| 60 | register u_quad_t qbase, cutoff; | ||
| 61 | register int neg, any, cutlim; | 60 | register int neg, any, cutlim; | 
| 62 | 61 | ||
| 63 | /* | 62 | /* | 
| @@ -83,9 +82,9 @@ strtouq(nptr, endptr, base) | |||
| 83 | } | 82 | } | 
| 84 | if (base == 0) | 83 | if (base == 0) | 
| 85 | base = c == '0' ? 8 : 10; | 84 | base = c == '0' ? 8 : 10; | 
| 86 | qbase = (unsigned)base; | 85 | |
| 87 | cutoff = (u_quad_t)UQUAD_MAX / qbase; | 86 | cutoff = UQUAD_MAX / (u_quad_t)base; | 
| 88 | cutlim = (u_quad_t)UQUAD_MAX % qbase; | 87 | cutlim = UQUAD_MAX % (u_quad_t)base; | 
| 89 | for (acc = 0, any = 0;; c = *s++) { | 88 | for (acc = 0, any = 0;; c = *s++) { | 
| 90 | if (isdigit(c)) | 89 | if (isdigit(c)) | 
| 91 | c -= '0'; | 90 | c -= '0'; | 
| @@ -95,18 +94,19 @@ strtouq(nptr, endptr, base) | |||
| 95 | break; | 94 | break; | 
| 96 | if (c >= base) | 95 | if (c >= base) | 
| 97 | break; | 96 | break; | 
| 98 | if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim) | 97 | if (any < 0) | 
| 98 | continue; | ||
| 99 | if (acc > cutoff || acc == cutoff && c > cutlim) { | ||
| 99 | any = -1; | 100 | any = -1; | 
| 100 | else { | 101 | acc = UQUAD_MAX; | 
| 102 | errno = ERANGE; | ||
| 103 | } else { | ||
| 101 | any = 1; | 104 | any = 1; | 
| 102 | acc *= qbase; | 105 | acc *= (u_quad_t)base; | 
| 103 | acc += c; | 106 | acc += c; | 
| 104 | } | 107 | } | 
| 105 | } | 108 | } | 
| 106 | if (any < 0) { | 109 | if (neg && any > 0) | 
| 107 | acc = UQUAD_MAX; | ||
| 108 | errno = ERANGE; | ||
| 109 | } else if (neg) | ||
| 110 | acc = -acc; | 110 | acc = -acc; | 
| 111 | if (endptr != 0) | 111 | if (endptr != 0) | 
| 112 | *endptr = (char *) (any ? s - 1 : nptr); | 112 | *endptr = (char *) (any ? s - 1 : nptr); | 
