c86561f625
from the unicode-db patch readme: command() receives a char* that is assigned to lp, which is a Rune*, and lp is incremented later in readchar(), so each read consumed 4 bytes. The only time command() is called is in runpcs() with bkpt->comm, which is a char* built in subpcs through a char*, so the string stored in bkpt->comm was not a Rune string. A way to test the bug is: db program main:b argv/X :r
111 lines
1.7 KiB
C
111 lines
1.7 KiB
C
/*
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* adb - common definitions
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* something of a grab-bag
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*/
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#include <u.h>
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#include <libc.h>
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#include <bio.h>
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#include <ctype.h>
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#include <mach.h>
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typedef ulong WORD;
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typedef uvlong ADDR;
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#define HUGEINT 0x7fffffff /* enormous WORD */
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#define MAXOFF 0x1000000
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#define INCDIR "/usr/lib/adb"
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#define DBNAME "db\n"
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#define CMD_VERBS "?/=>!$: \t"
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typedef int BOOL;
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#define MAXPOS 80
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#define MAXLIN 128
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#define ARB 512
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#define MAXCOM 64
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#define MAXARG 32
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#define LINSIZ 4096
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#define MAXSYM 255
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#define EOR '\n'
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#define SPC ' '
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#define TB '\t'
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#define STDIN 0
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#define STDOUT 1
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#define TRUE (-1)
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#define FALSE 0
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/*
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* run modes
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*/
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#define SINGLE 1
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#define CONTIN 2
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/*
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* breakpoints
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*/
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#define BKPTCLR 0 /* not a real breakpoint */
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#define BKPTSET 1 /* real, ready to trap */
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#define BKPTSKIP 2 /* real, skip over it next time */
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#define BKPTTMP 3 /* temporary; clear when it happens */
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typedef struct bkpt BKPT;
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struct bkpt {
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ADDR loc;
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uchar save[4];
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int count;
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int initcnt;
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int flag;
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Rune comm[MAXCOM];
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BKPT *nxtbkpt;
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};
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#define BADREG (-1)
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/*
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* common globals
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*/
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extern WORD adrval;
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extern uvlong expv;
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extern int adrflg;
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extern WORD cntval;
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extern int cntflg;
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extern WORD loopcnt;
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extern ADDR maxoff;
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extern ADDR localval;
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extern ADDR maxfile;
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extern ADDR maxstor;
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extern ADDR dot;
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extern int dotinc;
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extern int xargc;
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extern BOOL wtflag;
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extern char *corfil, *symfil;
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extern int fcor, fsym;
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extern BOOL mkfault;
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extern BOOL regdirty;
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extern int pid;
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extern int pcsactive;
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#define NNOTE 10
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extern int nnote;
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extern char note[NNOTE][ERRMAX];
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extern int ending;
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extern Map *cormap, *symmap, *dotmap;
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extern BKPT *bkpthead;
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extern int kflag;
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extern int lastc, peekc;
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