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snprints for safety

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R=r
OCL=15311
CL=15311
This commit is contained in:
Ken Thompson 2008-09-13 14:37:56 -07:00
parent c1ad0509ee
commit bb3269fba0
1 changed files with 15 additions and 15 deletions
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30
src/cmd/6g/list.c
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@ -73,7 +73,7 @@ Pconv(Fmt *fp)
int
Dconv(Fmt *fp)
{
char str[40], s[20];
char str[100], s[100];
Addr *a;
int i;
uint32 d1, d2;
@ -82,18 +82,18 @@ Dconv(Fmt *fp)
i = a->type;
if(i >= D_INDIR) {
if(a->offset)
sprint(str, "%lld(%R)", a->offset, i-D_INDIR);
snprint(str, sizeof(str), "%lld(%R)", a->offset, i-D_INDIR);
else
sprint(str, "(%R)", i-D_INDIR);
snprint(str, sizeof(str), "(%R)", i-D_INDIR);
goto brk;
}
switch(i) {
default:
if(a->offset)
sprint(str, "$%lld,%R", a->offset, i);
snprint(str, sizeof(str), "$%lld,%R", a->offset, i);
else
sprint(str, "%R", i);
snprint(str, sizeof(str), "%R", i);
break;
case D_NONE:
@ -105,50 +105,50 @@ Dconv(Fmt *fp)
break;
case D_EXTERN:
sprint(str, "%S+%lld(SB)", a->sym, a->offset);
snprint(str, sizeof(str), "%S+%lld(SB)", a->sym, a->offset);
break;
case D_STATIC:
sprint(str, "%S<>+%lld(SB)", a->sym, a->offset);
snprint(str, sizeof(str), "%S<>+%lld(SB)", a->sym, a->offset);
break;
case D_AUTO:
sprint(str, "%S+%lld(SP)", a->sym, a->offset);
snprint(str, sizeof(str), "%S+%lld(SP)", a->sym, a->offset);
break;
case D_PARAM:
sprint(str, "%S+%lld(FP)", a->sym, a->offset);
snprint(str, sizeof(str), "%S+%lld(FP)", a->sym, a->offset);
break;
case D_CONST:
if(fp->flags & FmtLong) {
d1 = a->offset & 0xffffffffLL;
d2 = (a->offset>>32) & 0xffffffffLL;
sprint(str, "$%lud-%lud", d1, d2);
snprint(str, sizeof(str), "$%lud-%lud", d1, d2);
break;
}
sprint(str, "$%lld", a->offset);
snprint(str, sizeof(str), "$%lld", a->offset);
break;
case D_FCONST:
sprint(str, "$(%.17e)", a->dval);
snprint(str, sizeof(str), "$(%.17e)", a->dval);
break;
case D_SCONST:
sprint(str, "$\"%Y\"", a->sval);
snprint(str, sizeof(str), "$\"%Y\"", a->sval);
break;
case D_ADDR:
a->type = a->index;
a->index = D_NONE;
sprint(str, "$%D", a);
snprint(str, sizeof(str), "$%D", a);
a->index = a->type;
a->type = D_ADDR;
goto conv;
}
brk:
if(a->index != D_NONE) {
sprint(s, "(%R*%d)", (int)a->index, (int)a->scale);
snprint(s, sizeof(s), "(%R*%d)", (int)a->index, (int)a->scale);
strcat(str, s);
}
conv: