diff options
Diffstat (limited to 'src/lib/libc/stdlib/strtouq.c')
-rw-r--r-- | src/lib/libc/stdlib/strtouq.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/src/lib/libc/stdlib/strtouq.c b/src/lib/libc/stdlib/strtouq.c index cc647d8d28..1f29a22f33 100644 --- a/src/lib/libc/stdlib/strtouq.c +++ b/src/lib/libc/stdlib/strtouq.c | |||
@@ -32,14 +32,14 @@ | |||
32 | */ | 32 | */ |
33 | 33 | ||
34 | #if defined(LIBC_SCCS) && !defined(lint) | 34 | #if defined(LIBC_SCCS) && !defined(lint) |
35 | static char sccsid[] = "@(#)strtouq.c 5.1 (Berkeley) 6/26/92"; | 35 | static char rcsid[] = "$OpenBSD: strtouq.c,v 1.4 1996/08/19 08:33:53 tholo Exp $"; |
36 | #endif /* LIBC_SCCS and not lint */ | 36 | #endif /* LIBC_SCCS and not lint */ |
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 | /* |
@@ -65,7 +64,7 @@ strtouq(nptr, endptr, base) | |||
65 | */ | 64 | */ |
66 | s = nptr; | 65 | s = nptr; |
67 | do { | 66 | do { |
68 | c = *s++; | 67 | c = (unsigned char) *s++; |
69 | } while (isspace(c)); | 68 | } while (isspace(c)); |
70 | if (c == '-') { | 69 | if (c == '-') { |
71 | neg = 1; | 70 | neg = 1; |
@@ -83,10 +82,10 @@ 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 = (unsigned char) *s++) { |
90 | if (isdigit(c)) | 89 | if (isdigit(c)) |
91 | c -= '0'; | 90 | c -= '0'; |
92 | else if (isalpha(c)) | 91 | else if (isalpha(c)) |
@@ -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); |