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roken: Fix UB

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This commit is contained in:
Nicolas Williams
2022-10-26 01:54:19 -05:00
parent 3e1befe633
commit 07abfdb1a9
1 changed files with 6 additions and 3 deletions
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9
lib/roken/snprintf.c
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@@ -449,13 +449,16 @@ xyzprintf (struct snprintf_state *state, const char *char_format, va_list ap)
break; break;
case 'd' : case 'd' :
case 'i' : { case 'i' : {
longest arg; int64_t arg;
u_longest num; uint64_t num;
int minusp = 0; int minusp = 0;
PARSE_INT_FORMAT(arg, ap, signed); PARSE_INT_FORMAT(arg, ap, signed);
if (arg < 0) { if (arg == INT64_MIN) {
minusp = 1;
num = (uint64_t)INT64_MAX + 1;
} else if (arg < 0) {
minusp = 1; minusp = 1;
num = -arg; num = -arg;
} else } else