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ragnarok.c
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/*
fenris - program execution path analysis tool
---------------------------------------------
Copyright (C) 2001, 2002 by Bindview Corporation
Portions copyright (C) 2001, 2002 by their respective contributors
Developed and maintained by Michal Zalewski <lcamtuf@coredump.cx>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
This file can be probably made two times shorter by separating
appropriate functions from the code. But I coded it to handle
single case, and later realized I have to handle two other, similar,
so copy-and-paste was faster ;)
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <assert.h>
#include <time.h>
#include <getopt.h>
#include <sys/stat.h>
#include <ctype.h>
#include <sys/types.h>
#include <errno.h>
#include <string.h>
// removed initially, possibly restore later
// #include "asmstring.h"
#include <fcntl.h>
#include <malloc.h>
#include <sys/mman.h>
#include "config.h"
#include "html.h"
#define outf(x...) fprintf(outfile,x)
// FIXME:NIX this one is weird, references cline often when not set yet, replace
//with FATALEXIT?
#define fatal(x) { STDERRMSG("FATAL (line %d): %s\n",cline,x); exit(1); }
char T_verb, T_domem;
#define MAXADDR 60000
#define MAXFNCT 3000
#define ST_FREE 0 // Free slot.
#define ST_CUR 1 // Currently present buffer.
#define ST_PAST 2 // Slot occupied by a discarded buffer.
#define BFL_ASSUMED 1 // Assumed buffer.
int nro_phase;
#define NRO doNRO()
char *doNRO(void)
{
nro_phase++;
if (nro_phase % 2)
return NRO_1;
else
return NRO_2;
}
int topfd;
struct bufdesc {
unsigned int iaddr; // Initial parameters
unsigned int isize; // ...
unsigned int addr; // Address
unsigned int size; // Size
unsigned char st;
unsigned char yet;
unsigned char fl;
unsigned int num;
unsigned int t;
};
int cline;
struct bufdesc b[MAXADDR];
int bynum[MAXADDR];
int btop = -1, breally = 0;
int forcepid;
char staticwarn;
char progname[1026];
FILE *outfile;
int bnum;
char *my_file, *my_ptr, *my_end;
void my_open(const char *name)
{
struct stat st;
int i;
if (my_file)
fatal("myfile already open");
i = open(name, O_RDONLY);
if (i < 0)
PERROREXIT(name);
if (fstat(i, &st))
PERROREXIT("fstat on input");
if (!(st.st_mode & S_IFREG))
fatal("input is not a regular file");
if (st.st_size <= 0)
fatal("zero size input");
my_file = mmap(0, st.st_size, PROT_READ, MAP_SHARED, i, 0);
if (my_file == MAP_FAILED)
PERROREXIT("mmap on input");
my_end = my_file + st.st_size - 1;
my_ptr = my_file;
close(i);
}
void my_seek(unsigned int off)
{
if (my_file + off > my_end)
my_ptr = my_end;
else
my_ptr = my_file + off;
}
char *ofip;
char gnbuf[5000];
char *getname(char *what, int x)
{
sprintf(gnbuf, "%s:%s.rag:%d:%04d", ofip, what, getpid(), x);
return gnbuf;
}
char getsbuf[1026];
char *my_gets(void)
{
char *x, *r = my_ptr;
int add;
if (my_ptr >= my_end - 1)
return 0;
if ((x = strchr(my_ptr, '\n'))) {
// Overflow. Lala.
strncpy(getsbuf, my_ptr, add = (x - my_ptr));
getsbuf[add] = 0;
my_ptr = x + 1;
}
if (my_ptr - r > 1000)
fatal("next line too long");
return getsbuf;
}
void usage(const char *whoami)
{
STDERRMSG("Usage: %s trace_file output_file\n", whoami);
exit(1);
}
void test_file(void)
{
char *buf;
char type[10], ver[10];
my_seek(0);
if (!(buf = my_gets()))
fatal("cannot read the header");
if (sscanf(buf, "<<-- fenris [%8[A-Z]] %8[0-9.b]", type, ver) != 2)
fatal("malformed file header");
if (strcmp(type, "STD"))
fatal("this is a non-standard file");
if (strcmp(ver, VERSION))
fatal("version incompatibility");
cline++;
STDERRMSG("[+] Input file checks passed.\n");
}
int find_inrange(unsigned int st, unsigned int end)
{
int i;
// if (st >= end) fatal("st >= end in find_inrange");
for (i = 0; i < breally; i++)
if (b[i].st == ST_CUR) {
if (b[i].addr >= st) // Starts in the range
if (b[i].addr <= end)
return i;
if (b[i].addr + b[i].size >= st)
if (b[i].addr + b[i].size <= end)
return i; // Ends in the range.
}
return -1;
}
int find_addr(unsigned int st)
{
int i;
// for (i=0;i<breally;i++)
// STDERRMSG("buf %d: %x:%d fl %d\n",i,b[i].addr,b[i].size,b[i].fl);
for (i = 0; i < breally; i++)
if (b[i].st == ST_CUR) {
if (b[i].addr <= st)
if ((b[i].addr + b[i].size) > st) {
// STDERRMSG("Find addr %x returning %d (%x to %x)\n",st,i,b[i].addr,b[i].addr+b[i].size);
return i;
}
}
return -1;
}
int findbynum(int n)
{
return bynum[n];
}
int bufno = 0;
void get_buffers(void)
{
char *x, *y;
unsigned int addr;
int len;
int q, i, left, over;
int problems = 0;
int exitcond = 0;
char pidnotice = 0;
char hadstar = 0;
STDERRMSG("*** PHASE 1: Preliminary analysis and buffer layout...\n");
while ((x = my_gets())) {
cline++;
{
char *spa, *naw, *dwu;
// Skip EIP!
if ((spa = strchr(x, ' ')))
if ((naw = strchr(x, ']')))
if ((dwu = strchr(x, ':')))
if ((spa > naw) && (naw < dwu) && (spa < dwu))
x = spa + 1;
}
if (!strncmp(x, "+++ Executing '", 15)) {
char *w;
int tracepid;
x += 15;
if (!(w = strrchr(x, '\'')))
fatal("malformed exec");
*w = 0;
sscanf(w + 1, " (pid %d", &tracepid);
STDERRMSG("[+] Target locked: pid %d, command '%s'\n", tracepid, x);
forcepid = tracepid;
strncpy(progname, x, 1024);
if (strstr(w + 1, "static")) {
STDERRMSG("[!] Warning: this is a static application, I'm not too good at it!\n");
staticwarn = 1;
}
} else {
if (!strncmp(x, "+++ Process ", 11) && strstr(x, "image replaced")) {
int miau;
sscanf(x + 11, "%d", &miau);
if (miau == forcepid) {
STDERRMSG("[!] Will not trace pid %d after execve, bailing out.\n", miau);
goto bailout;
}
continue;
}
}
{
int miau;
if (sscanf(x, "%d:", &miau) == 1) {
if (forcepid != miau) {
if (!pidnotice)
STDERRMSG("[!] Only first process analyzed (%d but not %d or others).\n", forcepid, miau);
pidnotice = 1;
continue;
}
}
}
if (!(cline % 941)) {
STDERRMSG("[+] Collecting data... %0.02f%% (%d lines) done\r",
((float)(my_ptr - my_file)) * 100.0 / ((float)(my_end - my_file)), cline);
}
if (x[0] == '>') {
if (strstr(x, "more processes")) {
exitcond = 1;
} else {
problems++;
STDERRMSG("[!] line %d: trace error: %s\n", cline, x + 2);
}
}
if (x[0] == '*') {
if (!T_domem) {
if (strstr(x, "strange")) {
continue;
}
}
if (!hadstar) {
problems++;
}
if (x[1] == '*') {
hadstar = !hadstar;
}
STDERRMSG("[!] line %d: %s\n", cline, x);
continue;
} else {
hadstar = 0;
}
if (btop < 0) {
int i;
bufno++;
for (i = 0; i < breally; i++)
if (b[i].st == ST_FREE)
break;
if (i == breally) {
breally++;
if (breally >= MAXADDR)
fatal("MAXADDR exceeded");
}
btop = i;
}
if (!(y = strchr(x, ' ')))
continue;
x = y;
while (*x == ' ')
x++;
// STDERRMSG("# btop=%d br=%d Parsing line: %s\n",btop,breally,x);
if (!strncmp(x, "\\ UNEXPECTED", 12)) {
STDERRMSG("[!] line %d: unexpected %s\n", cline, x + 13);
x += 11;
*x = '\\';
problems++;
}
if (!strncmp(x, "\\ new", 5)) {
// Check for collisions, add new buffer.
// \ new [authoritative] buffer candidate: %x:%d (%s)
if (!strstr(x, "buffer candidate:"))
continue;
if (!(x = strchr(x, ':')))
fatal("malformed \\ new line");
x += 1;
if (sscanf(x, " %x:%d", &addr, &len) != 2)
fatal("malformed \\ new data");
if (len < 0)
fatal("\\ new length less than 0");
if ((q = find_addr(addr)) >= 0) {
if (!(b[q].fl & BFL_ASSUMED)) {
STDERRMSG("[!] line %d: new buffer %x:%d already exists as %x:%d.\n", cline, addr, len, b[q].addr,
b[q].size);
problems++;
}
continue;
}
b[btop].iaddr = b[btop].addr = addr;
b[btop].isize = b[btop].size = len;
b[btop].st = ST_CUR;
b[btop].t = bufno;
if (T_verb)
STDERRMSG("+ New #%d: %x:%d\n", btop, addr, len);
btop = -1;
continue;
}
else if (!strncmp(x, "\\ discard: mem", 14)) {
// Check for presence. Remove buffer.
// \ discard: mem %x
if (sscanf(x, "\\ discard: mem %x:%d", &addr, &len) != 2)
fatal("malformed \\ discard");
if (len < 0)
fatal("\\ discard len less than 0");
if ((q = find_inrange(addr, addr + len)) < 0) {
STDERRMSG("[!] line %d: discard of non-existing %x:%d\n", cline, addr, len);
problems++;
continue;
}
if (T_verb)
STDERRMSG("- Discard #%d: %x:%d (%x:%d)\n", q, addr, len, b[q].addr, b[q].size);
b[q].addr = addr;
b[q].size = len;
b[q].st = ST_PAST;
if (strstr(x, "[is within")) {
q = find_addr(addr);
if (q <= 0)
continue;
b[q].st = ST_FREE;
}
btop = -1;
continue;
}
else if (!strncmp(x, "\\ remap", 7)) {
unsigned int a1, a2;
x += 9;
if (sscanf(x, "%x:%d -> %x:%d", &a1, &a2, &addr, &len) != 4)
fatal("malformed \\ merge");
if ((q = find_inrange(a1, a1 + a2)) < 0) {
problems++;
STDERRMSG("[!] line %d: remap of non-existing a1 %x:%d\n", cline, a1, a2);
q = btop;
b[q].iaddr = addr;
b[q].isize = len;
b[q].t = bufno;
btop = -1;
}
b[q].addr = addr;
b[q].size = len;
b[q].st = ST_CUR;
if (T_verb)
STDERRMSG("= Merged into #%d: %x | %x = %x:%d\n", q, a1, a2, addr, len);
continue;
}
else if (!strncmp(x, "\\ merge", 7)) {
unsigned int a1, a2, l1, l2, any = 0;
// Eliminate all buffers within this one. Create new.
// \ merge [??]: bffff770:50 bffff740:64 (first seen in S main:fstat) -> bffff740:98
x += 14;
if (sscanf(x, "%x:%d %x:%d (%*[^)]) -> %x:%d", &a1, &l1, &a2, &l2, &addr, &len) < 6)
fatal("malformed \\ merge");
while ((q = find_inrange(addr, addr + len)) >= 0) {
if (T_verb)
STDERRMSG("- Discard: %x [#%d] in merge with %x:%d %x:%d\n", b[q].addr, q, a1, l1, a2, l2);
b[q].st = ST_FREE;
if (b[q].addr == a1)
any++;
else if (b[q].addr == a2)
any++;
}
b[btop].iaddr = b[btop].addr = addr;
b[btop].isize = b[btop].size = len;
b[btop].st = ST_CUR;
b[btop].t = bufno;
if (!any)
STDERRMSG("[!] line %d: merge of non-existing buffers [%x | %x -> %x]\n", cline, a1, a2, addr);
if (T_verb)
STDERRMSG("= Merged into #%d: %x | %x = %x:%d\n", btop, a1, a2, addr, len);
btop = -1;
continue;
}
else if (!strncmp(x, "- remap: non-existing", 21)) {
if (!(x = strchr(x, '>')))
fatal("malformed - remap line");
x += 1;
if (sscanf(x, " %x:%d", &addr, &len) < 2)
fatal("malformed \\ new data");
if (len < 0)
fatal("- remap less than 0");
b[btop].iaddr = b[btop].addr = addr;
b[btop].isize = b[btop].size = len;
b[btop].st = ST_CUR;
b[btop].t = bufno;
problems++;
STDERRMSG("[!] line %d: remap of non-existing buffer\n", cline);
if (T_verb)
STDERRMSG("+ Strange new #%d: %x:%d \n", btop, addr, len);
btop = -1;
continue;
}
else if (!strncmp(x, "- ", 2)) {
problems++;
STDERRMSG("[!] line %d: %s\n", cline, x + 2);
}
else if (!strncmp(x, "+ ", 2)) {
// Check for presence. Not found? Add.
// + 40018000 = 40018000:4096 <off 0> (first seen in S main:read)
if (sscanf(x, "+ fd %d: ", &q) == 1) {
if (topfd < q)
topfd = q;
continue;
}
if (sscanf(x, "+ %x = %x:%d <off %d>", &q, &addr, &len, &q) != 4)
continue;
if (len < 0)
fatal("assumed new length < 0");
if ((q = find_inrange(addr, addr + len)) >= 0) {
while (q >= 0) {
if ((b[q].addr == addr) && (b[q].size == (unsigned int)len))
goto getmeout;
if (T_verb)
STDERRMSG("= Adjust #%d into #%d: %x:%d -> %x:%d\n", q, btop, b[q].addr, b[q].size, addr, len);
b[q].st = ST_FREE;
q = find_inrange(addr, addr + len);
}
} else {
if (T_verb)
STDERRMSG("+ Assumed new #%d: %x:%d\n", btop, addr, len);
}
b[btop].fl = BFL_ASSUMED;
b[btop].iaddr = b[btop].addr = addr;
b[btop].isize = b[btop].size = len;
b[btop].st = ST_CUR;
b[btop].t = bufno;
btop = -1;
continue;
} else {
if (!strncmp(x, "@ ", 2)) {
char *w = strstr(x + 2, " fd ");
int i;
if ((!w) || (sscanf(w + 4, "%d", &i) != 1))
fatal("malformed @ line.");
if (topfd < i)
topfd = i;
}
}
getmeout:
;
}
bailout:
left = 0;
over = 0;
for (i = 0; i < breally; i++) {
if (b[i].st == ST_CUR)
left++;
if (b[i].st != ST_FREE) {
b[i].num = bnum++;
over++;
}
}
if (!exitcond)
STDERRMSG("[!] Warning: file truncated!\n");
STDERRMSG("[+] Found %d buffers (%d slots, %d static), %d problems.\n", over, bufno, left, problems);
STDERRMSG("[+] Highest fd found: %d\n", topfd);
{
struct bufdesc x[MAXADDR];
bzero(x, sizeof(x));
for (i = 0; i < bufno; i++) {
int j;
if (!(i % 123))
STDERRMSG("[+] Sorting buffers... %0.02f%% done\r", ((float)i * 100.0) / ((float)bufno));
for (j = 0; j < breally; j++) {
if ((b[j].t == (unsigned int)i) && b[j].st) {
b[j].st = ST_CUR;
memcpy(&x[j], &b[j], sizeof(struct bufdesc));
bynum[b[j].num] = j;
break;
}
}
}
memcpy(b, x, sizeof(x));
}
STDERRMSG("[+] Buffers successfully sorted using bogosort algorithm.\n");
if (T_verb) {
STDERRMSG("[+] BUFFERS: ");
for (i = 0; i < breally; i++)
STDERRMSG("%d [%d] %x:%d ", i, b[i].num, b[i].addr, b[i].size);
STDERRMSG("\n");
}
}
#define MOD_ACC 1
#define MOD_CLOSE 2
#define MOD_OPEN 3
#define MOD_DUP 4
#define B_READ 1
#define B_WRITE 2
int nest;
char fname[MAXNEST][MAXNAME + 1];
char a[MAXNEST][MAXADDR];
FILE *fnfile[MAXNEST];
int fnum;
char *modtable;
void parse_functions(void)
{
int i;
time_t ti;
char *x, *ox;
char obuf[1024];
char hadconditional = 0;
char bounceback = 0;
// gcc prior to 2.96 bug workaround.
modtable = malloc(topfd + 1);
bzero(modtable, topfd + 1);
my_seek(0);
cline = 0;
ti = time(0);
STDERRMSG("*** PHASE 2: Parsing functions, logging buffer activity...\n");
strcpy(fname[0], "main");
if (!(fnfile[0] = fopen(getname("F", 0), "w")))
fatal("cannot open fnfile");
// negative
// Tuesday, December 18, 2001
// <!--- header.txt --->
outf("<!--- header.txt --->\n"
"<html>\n"
"<head>\n"
"<title> fenris: %s, %s </title>\n"
"<style type=\"text/css\">\n"
" A.ttip { text-decoration: none; color: none; }\n"
"</style>\n"
"</head>\n\n"
"<!-- Automatically generated by 'ragnarok', a part of project Fenris -->\n"
"<!-- Brought to you by Michal Zalewski (lcamtuf@coredump.cx) -->\n"
"<!-- http://lcamtuf.coredump.cx/fenris/ -->\n\n", progname, ctime(&ti));
// Fixed header
outf(header);
// Lame script
outf(ascript);
outf("<table border=1><tr bgcolor=#efffff><td><font face=helvetica,arial>"
"Program: <b>%s</td><tr bgcolor=#ffefff><td><font "
"face=helvetica,arial>Date: <b>%s</td></table>\n\n", progname, ctime(&ti));
// negative
// Tuesday, December 18, 2001
// <!--- index.txt --->
outf("<!--- index.txt --->\n<p><a name=A1><font size=+0><b>Buffer / function interaction:</b></font><br>\n\n" NAVI);
// outf("<p><a name=A1><font size=+0><b>Buffer / function interaction:</b></font><br>\n\n" NAVI);
outf(hinttable);
outf("\n<table border=0>%s\n", NRO);
outf("<b>line</b>" NFI "<b>function</b>" NFI "<b>buffers</b>" NFI "<b>descriptors</b>%s\n", NRO);
outf(" " NFI ".- <b><a href=\"#f0\">main</a></b>" NFI " " NFI " %s\n", NRO);
while ((x = my_gets())) {
int pid;
cline++;
ox = x;
STDERRMSG("[+] Found %d function calls, %0.02f%% done...\r", fnum,
((float)(my_ptr - my_file)) * 100.0 / ((float)(my_end - my_file)));
reanalyze:
if (!strncmp(x, "+++ Process ", 11) && strstr(x, "image replaced")) {
sscanf(x + 11, "%d", &pid);
if (pid == forcepid)
goto bailout_parse;
continue;
}
{
char *spa, *naw, *dwu;
// Skip EIP!
if ((spa = strchr(x, ' ')))
if ((naw = strchr(x, ']')))
if ((dwu = strchr(x, ':')))
if ((spa > naw) && (naw < dwu) && (spa < dwu))
x = spa + 1;
}
if (sscanf(x, "%d:", &pid) != 1)
continue;
if (pid != forcepid)
continue;
x = strchr(x, ' ');
while (*x == ' ')
x++;
if (!strncmp(x, "[L] ", 4))
x += 4;
if (!strncmp(x, "...return", 9) || !strncmp(x, "...left", 7) || !strncmp(x, "...function", 11)) {
char ttip[1000];
strcpy(ttip, x);
{
unsigned int i;
for (i = 0; i < strlen(ttip); i++) {
if (ttip[i] == '<')
ttip[i] = '(';
else if (ttip[i] == '>')
ttip[i] = ')';
else if (ttip[i] == '"')
ttip[i] = '`';
else if (ttip[i] == '\'')
ttip[i] = '`';
}
}
if (nest - 1 >= 0)
fprintf(fnfile[nest - 1], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <b>%s</b>\n", cline, cline, ox);
ox = x = my_gets();
cline++;
reprocess:
if (!x)
break; // Doh.
x = strchr(x, ' ');
if (!x)
break; // Doh^2.
{
char *spa, *naw, *dwu;
// Skip EIP!
if ((spa = strchr(x, ' ')))
if ((naw = strchr(x, ']')))
if ((dwu = strchr(x, ':')))
if ((spa > naw) && (naw < dwu) && (spa < dwu))
x = spa + 1;
}
while (*x == ' ')
x++;
if (!strncmp(x, "[L] ", 4))
x += 4;
if (!strncmp(x, "// function has", 15)) {
ox = x = my_gets();
cline++;
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
goto reprocess;
}
// Add other objects! Buffer is not enough
else if (!strncmp(x, "* READ buffer", 13)) {
int add, f;
if (sscanf(x, "* READ buffer %x", &add) != 1)
fatal("malformed read");
f = find_addr(add);
if (f < 0)
STDERRMSG("[!] line %d: READ on non-existing buffer %x.\n", cline, add);
else {
a[nest][b[f].num] |= B_READ;
{
FILE *qq;
qq = fopen(getname("B", b[f].num), "a");
if (!qq)
fatal("fopen");
fprintf(qq, "<a href=\"#l%d\">%07d</a> in %s:<br>\n", cline, cline, fname[nest]);
fprintf(qq, "<a href=\"#l%d\">%07d</a> <i>%s</i><p>\n", cline, cline, ox);
// fprintf(qq,"%s:\n%s\n",fname[nest],x);
fclose(qq);
}
}
// Skip +es
x = ox = my_gets();
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
cline++;
if (!strstr(ox, " + "))
STDERRMSG("[!] line %d: no '+'\n", cline);
// Get next line, whatever it is.
x = ox = my_gets();
cline++;
// Skip last input if necessary.
if (strstr(ox, "last input")) {
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
x = ox = my_gets();
cline++;
}
goto reprocess;
}
// Add other objects! Buffer is not enough
else if (!strncmp(x, "* READ local", 11)) {
int add, f;
if (sscanf(x, "* READ local object %*s (%x)", &add) < 1)
fatal("malformed read");
f = find_addr(add);
if (f < 0)
STDERRMSG("[!] line %d: READ on non-existing buffer %x.\n", cline, add);
else {
a[nest][b[f].num] |= B_READ;
{
FILE *qq;
qq = fopen(getname("B", b[f].num), "a");
if (!qq)
fatal("fopen");
fprintf(qq, "<a href=\"#l%d\">%07d</a> in %s:<br>\n", cline, cline, fname[nest]);
fprintf(qq, "<a href=\"#l%d\">%07d</a> <i>%s</i><p>\n", cline, cline, ox);
// fprintf(qq,"%s:\n%s\n",fname[nest],x);
fclose(qq);
}
}
// Skip +es
x = ox = my_gets();
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
cline++;
if (!strstr(ox, " + "))
STDERRMSG("[!] line %d: no '+'\n", cline);
// Get next line, whatever it is.
x = ox = my_gets();
cline++;
// Skip last input if necessary.
if (strstr(ox, "last input")) {
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
x = ox = my_gets();
cline++;
}
goto reprocess;
}
// Add other objects! Buffer is not enough
else if (!strncmp(x, "* READ share", 11)) {
int add, f;
if (sscanf(x, "* READ shared object %*s (%x)", &add) < 1)
fatal("malformed read");
f = find_addr(add);
if (f < 0)
STDERRMSG("[!] line %d: READ on non-existing buffer %x.\n", cline, add);
else {
a[nest][b[f].num] |= B_READ;
{
FILE *qq;
qq = fopen(getname("B", b[f].num), "a");
if (!qq)
fatal("fopen");
fprintf(qq, "<a href=\"#l%d\">%07d</a> in %s:<br>\n", cline, cline, fname[nest]);
fprintf(qq, "<a href=\"#l%d\">%07d</a> <i>%s</i><p>\n", cline, cline, ox);
// fprintf(qq,"%s:\n%s\n",fname[nest],x);
fclose(qq);
}
}
// Skip +es
x = ox = my_gets();
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
cline++;
if (!strstr(ox, " + "))
STDERRMSG("[!] line %d: no '+'\n", cline);
// Get next line, whatever it is.
x = ox = my_gets();
cline++;
// Skip last input if necessary.
if (strstr(ox, "last input")) {
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
x = ox = my_gets();
cline++;
}
goto reprocess;
}
else if (!strncmp(x, "* WRITE buffer", 14)) {
int add, f;
if (sscanf(x, "* WRITE buffer %x", &add) != 1)
fatal("malformed write");
f = find_addr(add);
if (f < 0)
STDERRMSG("[!] line %d: WRITE on non-existing buffer %x.\n", cline, add);
else {
a[nest][b[f].num] |= B_WRITE;
{
FILE *qq;
qq = fopen(getname("B", b[f].num), "a");
if (!qq)
fatal("fopen");
fprintf(qq, "<a href=\"#l%d\">%07d</a> in %s:<br>\n", cline, cline, fname[nest]);
fprintf(qq, "<a href=\"#l%d\">%07d</a> <i>%s</i><p>\n", cline, cline, ox);
// fprintf(qq,"%s:\n%s\n",fname[nest],x);
fclose(qq);
}
}
// Skip +es
ox = my_gets();
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
cline++;
if (!strstr(ox, " + "))
STDERRMSG("[!] line %d: no '+'\n", cline);
// Get next line.
x = ox = my_gets();
cline++;
// Check for last input.
if (strstr(ox, "last input")) {
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
x = ox = my_gets();
cline++;
}
goto reprocess;
}
else if (!strncmp(x, "* WRITE local ", 14)) {
int add, f;
if (sscanf(x, "* WRITE local object %*s (%x)", &add) < 1)
fatal("malformed write");
f = find_addr(add);
if (f < 0)
STDERRMSG("[!] line %d: WRITE on non-existing buffer %x.\n", cline, add);
else {
a[nest][b[f].num] |= B_WRITE;
{
FILE *qq;
qq = fopen(getname("B", b[f].num), "a");
if (!qq)
fatal("fopen");
fprintf(qq, "<a href=\"#l%d\">%07d</a> in %s:<br>\n", cline, cline, fname[nest]);
fprintf(qq, "<a href=\"#l%d\">%07d</a> <i>%s</i><p>\n", cline, cline, ox);
// fprintf(qq,"%s:\n%s\n",fname[nest],x);
fclose(qq);
}
}
// Skip +es
ox = my_gets();
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
cline++;
if (!strstr(ox, " + "))
STDERRMSG("[!] line %d: no '+'\n", cline);
// Get next line.
x = ox = my_gets();
cline++;
// Check for last input.
if (strstr(ox, "last input")) {
fprintf(fnfile[nest], "<b><a href=\"#l%d\">%07d</a></b> <i>%s</i>\n", cline, cline, ox);
x = ox = my_gets();
cline++;
}
goto reprocess;
}
else if (!strncmp(x, "* WRITE shared", 14)) {
int add, f;
if (sscanf(x, "* WRITE shared object %*s (%x)", &add) < 1)
fatal("malformed write");
f = find_addr(add);
if (f < 0)
STDERRMSG("[!] line %d: WRITE on non-existing buffer %x.\n", cline, add);