73 lines
1.3 KiB
C
73 lines
1.3 KiB
C
/* Copyright (C) Charles Forsyth
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* See /doc/license/NOTICE.Plan9-9k.txt for details about the licensing.
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*/
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/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
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* See /doc/license/gpl-2.0.txt for details about the licensing.
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*/
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#include "u.h"
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#include "../port/lib.h"
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#include "mem.h"
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#include "dat.h"
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#include "fns.h"
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/*
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* Print functions for system call tracing.
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*/
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void
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fmtrwdata(Fmt* f, char* a, int n)
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{
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int i;
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char *t;
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if(a == nil){
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jehanne_fmtprint(f, " 0x0/\"\"");
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return;
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}
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a = validaddr(a, n, 0);
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t = smalloc(n+1);
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for(i = 0; i < n; i++){
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if(a[i] > 0x20 && a[i] < 0x7f)
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t[i] = a[i];
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else
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t[i] = '.';
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}
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t[n] = 0;
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jehanne_fmtprint(f, " %#p/\"%s\"", a, t);
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jehanne_free(t);
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}
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void
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fmtuserstring(Fmt* f, const char* a)
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{
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int n;
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char *t;
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if(a == nil){
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jehanne_fmtprint(f, " 0/\"\"");
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return;
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}
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a = validaddr((void*)a, 1, 0);
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n = ((char*)vmemchr((char*)a, 0, 0x7fffffff) - a) + 1;
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t = smalloc(n+1);
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jehanne_memmove(t, (char*)a, n);
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t[n] = 0;
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jehanne_fmtprint(f, " %#p/\"%s\"", a, t);
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jehanne_free(t);
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}
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void
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fmtuserstringlist(Fmt* fmt, const char** argv)
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{
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char* a;
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evenaddr(PTR2UINT(argv));
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for(;;){
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a = *(char**)validaddr((char**)argv, sizeof(char**), 0);
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if(a == nil)
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break;
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jehanne_fmtprint(fmt, " ");
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fmtuserstring(fmt, a);
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argv++;
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}
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}
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