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Up to [Research Unix] / researchv10no / cmd / ccom / vax / tests|
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researchv10 Norman
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned int u_int;
typedef unsigned long u_long;
typedef struct _physadr { int r[1]; } *physadr;
typedef int daddr_t;
typedef char * caddr_t;
typedef u_short ino_t;
typedef int swblk_t;
typedef int size_t;
typedef int time_t;
typedef int label_t[14];
typedef short dev_t;
typedef int off_t;
typedef long portid_t;
typedef struct fd_set { int fds_bits[1]; } fd_set;
struct ar_hdr {
char ar_name[16];
char ar_date[12];
char ar_uid[6];
char ar_gid[6];
char ar_mode[8];
char ar_size[10];
char ar_fmag[2];
};
extern struct _iobuf {
int _cnt;
char *_ptr;
char *_base;
short _flag;
char _file;
} _iob[20];
struct _iobuf *fopen();
struct _iobuf *fdopen();
struct _iobuf *freopen();
long ftell();
char *fgets();
extern char _ctype[];
struct exec {
long a_magic;
unsigned long a_text;
unsigned long a_data;
unsigned long a_bss;
unsigned long a_syms;
unsigned long a_entry;
unsigned long a_trsize;
unsigned long a_drsize;
};
struct relocation_info {
int r_address;
unsigned int r_symbolnum:24,
r_pcrel:1,
r_length:2,
r_extern:1,
:4;
};
struct nlist {
union {
char *n_name;
long n_strx;
} n_un;
unsigned char n_type;
char n_other;
short n_desc;
unsigned long n_value;
};
struct stat
{
dev_t st_dev;
ino_t st_ino;
unsigned short st_mode;
short st_nlink;
short st_uid;
short st_gid;
dev_t st_rdev;
off_t st_size;
time_t st_atime;
time_t st_mtime;
time_t st_ctime;
};
int aflg, gflg, nflg, oflg, pflg, uflg;
int rflg = 1;
char **xargv;
int archive;
struct ar_hdr archdr;
union {
char mag_armag[8+1];
struct exec mag_exp;
} mag_un;
struct _iobuf *fi;
off_t off;
off_t ftell();
char *malloc();
char *realloc();
char *strp;
char *stab();
off_t strsiz;
int compare();
int narg;
int errs;
main(argc, argv)
char **argv;
{
if (--argc>0 && argv[1][0]=='-' && argv[1][1]!=0) {
argv++;
while (*++*argv) switch (**argv) {
case 'n':
nflg++;
continue;
case 'g':
gflg++;
continue;
case 'u':
uflg++;
continue;
case 'r':
rflg = -1;
continue;
case 'p':
pflg++;
continue;
case 'o':
oflg++;
continue;
case 'a':
aflg++;
continue;
default:
fprintf((&_iob[2]), "nm: invalid argument -%c\n",
*argv[0]);
exit(2);
}
argc--;
}
if (argc == 0) {
argc = 1;
argv[1] = "a.out";
}
narg = argc;
xargv = argv;
while (argc--) {
++xargv;
namelist();
}
exit(errs);
}
namelist()
{
register int j;
archive = 0;
fi = fopen(*xargv, "r");
if (fi == 0) {
error(0, "cannot open");
return;
}
off = 8;
fread((char *)&mag_un, 1, sizeof(mag_un), fi);
if (mag_un.mag_exp.a_magic == 0177545) {
error(0, "old archive");
return;
}
if (strncmp(mag_un.mag_armag, "!<arch>\n", 8)==0)
archive++;
else if ( (((mag_un.mag_exp).a_magic)!=0407 && ((mag_un.mag_exp).a_magic)!=0410 && ((mag_un.mag_exp).a_magic)!=0413 )) {
error(0, "bad format");
return;
}
fseek(fi, 0L, 0);
if (archive) {
nextel(fi);
if (narg > 1)
printf("\n%s:\n", *xargv);
}
do {
off_t o;
register i, n;
struct nlist *symp = 0;
struct nlist sym;
struct stat stb;
fread((char *)&mag_un.mag_exp, 1, sizeof(struct exec), fi);
if ( (((mag_un.mag_exp).a_magic)!=0407 && ((mag_un.mag_exp).a_magic)!=0410 && ((mag_un.mag_exp).a_magic)!=0413 ))
continue;
if (archive == 0)
fstat( ((fi)->_file), &stb);
o = ( ((mag_un.mag_exp).a_magic==0413 ? 1024 : sizeof (struct exec)) + (mag_un.mag_exp).a_text+(mag_un.mag_exp).a_data + (mag_un.mag_exp).a_trsize+(mag_un.mag_exp).a_drsize) - sizeof (struct exec);
fseek(fi, o, 1);
n = mag_un.mag_exp.a_syms / sizeof(struct nlist);
if (n == 0) {
error(0, "no name list");
continue;
}
if ( ( ( ((mag_un.mag_exp).a_magic==0413 ? 1024 : sizeof (struct exec)) + (mag_un.mag_exp).a_text+(mag_un.mag_exp).a_data + (mag_un.mag_exp).a_trsize+(mag_un.mag_exp).a_drsize) + (mag_un.mag_exp).a_syms) + sizeof (off_t) >
(archive ? off : stb.st_size))
error(1, "old format .o (no string table) or truncated file");
i = 0;
if (strp)
free(strp), strp = 0;
while (--n >= 0) {
fread((char *)&sym, 1, sizeof(sym), fi);
if (gflg && (sym.n_type&01 )==0)
continue;
if ((sym.n_type&0xe0 ) && (!aflg||gflg||uflg))
continue;
if (symp==0)
symp = (struct nlist *)
malloc(sizeof(struct nlist));
else
symp = (struct nlist *)
realloc(symp,
(i+1)*sizeof(struct nlist));
if (symp == 0)
error(1, "out of memory");
symp[i++] = sym;
}
if (archive && ftell(fi)+sizeof(off_t) >= off) {
error(0, "no string table (old format .o?)");
continue;
}
if (fread((char *)&strsiz,sizeof(strsiz),1,fi) != 1) {
error(0, "no string table (old format .o?)");
goto out;
}
strp = (char *)malloc(strsiz);
if (strp == 0)
error(1, "ran out of memory");
if (fread(strp+sizeof(strsiz),strsiz-sizeof(strsiz),1,fi) != 1)
error(1, "error reading string table");
for (j = 0; j < i; j++)
if (symp[j].n_un.n_strx)
symp[j].n_un.n_name =
symp[j].n_un.n_strx + strp;
else
symp[j].n_un.n_name = "";
if (pflg==0)
qsort(symp, i, sizeof(struct nlist), compare);
if ((archive || narg>1) && oflg==0)
printf("\n%s:\n", archive ? archdr.ar_name : *xargv);
psyms(symp, i);
if (symp)
free((char *)symp), symp = 0;
if (strp)
free((char *)strp), strp = 0;
} while(archive && nextel(fi));
out:
fclose(fi);
}
psyms(symp, nsyms)
register struct nlist *symp;
int nsyms;
{
register int n, c;
for (n=0; n<nsyms; n++) {
c = symp[n].n_type;
if (c & 0xe0 ) {
if (oflg) {
if (archive)
printf("%s:", *xargv);
printf("%s:", archive ? archdr.ar_name : *xargv);
}
printf("%08x - %02x %04x %5.5s %s\n",
symp[n].n_value,
symp[n].n_other & 0xff, symp[n].n_desc & 0xffff,
stab(symp[n].n_type & 0xff),
symp[n].n_un.n_name);
continue;
}
switch (c&0x1e ) {
case 0x0 :
c = 'u';
if (symp[n].n_value)
c = 'c';
break;
case 0x2 :
c = 'a';
break;
case 0x4 :
c = 't';
break;
case 0x6 :
c = 'd';
break;
case 0x8 :
c = 'b';
break;
case 0x1f :
c = 'f';
break;
}
if (uflg && c!='u')
continue;
if (oflg) {
if (archive)
printf("%s:", *xargv);
printf("%s:", archive ? archdr.ar_name : *xargv);
}
if (symp[n].n_type&01 )
c = toupper(c);
if (!uflg) {
if (c=='u' || c=='U')
printf(" ");
else
printf("%08x", symp[n].n_value);
printf(" %c ", c);
}
printf("%s\n", symp[n].n_un.n_name);
l1: ;
}
}
compare(p1, p2)
struct nlist *p1, *p2;
{
if (nflg) {
if (p1->n_value > p2->n_value)
return(rflg);
if (p1->n_value < p2->n_value)
return(-rflg);
}
return (rflg * strcmp(p1->n_un.n_name, p2->n_un.n_name));
}
nextel(af)
struct _iobuf *af;
{
register char *cp;
register r;
long arsize;
fseek(af, off, 0);
r = fread((char *)&archdr, 1, sizeof(struct ar_hdr), af);
if (r != sizeof(struct ar_hdr))
return(0);
for (cp = archdr.ar_name; cp < &archdr.ar_name[sizeof(archdr.ar_name)]; cp++)
if (*cp == ' ')
*cp = '\0';
arsize = atol(archdr.ar_size);
if (arsize & 1)
++arsize;
off = ftell(af) + arsize;
return(1);
}
error(n, s)
char *s;
{
fprintf((&_iob[2]), "nm: %s:", *xargv);
if (archive) {
fprintf((&_iob[2]), "(%s)", archdr.ar_name);
fprintf((&_iob[2]), ": ");
} else
fprintf((&_iob[2]), " ");
fprintf((&_iob[2]), "%s\n", s);
if (n)
exit(2);
errs = 1;
}
struct stabnames {
int st_value;
char *st_name;
} stabnames[] ={
0x20 , "GSYM",
0x22 , "FNAME",
0x24 , "FUN",
0x26 , "STSYM",
0x28 , "LCSYM",
0x40 , "RSYM",
0x44 , "SLINE",
0x60 , "SSYM",
0x64 , "SO",
0x80 , "LSYM",
0x84 , "SOL",
0xa0 , "PSYM",
0xa4 , "ENTRY",
0xc0 , "LBRAC",
0xe0 , "RBRAC",
0xe2 , "BCOMM",
0xe4 , "ECOMM",
0xe8 , "ECOML",
0xfe , "LENG",
0x30 , "PC",
0, 0
};
char *
stab(val)
{
register struct stabnames *sp;
static char prbuf[32];
for (sp = stabnames; sp->st_name; sp++)
if (sp->st_value == val)
return (sp->st_name);
sprintf(prbuf, "%02x", val);
return (prbuf);
}
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.