int parse_section()
{
match_line(SECTION_HEADER);
match_line(SECTION_NAME);
match_line(SECTION_NUMBER);
parse_item();
output("};\n");
flush_cache(CACHE1);
return 0;
}
int parse_item_item_item()
{
match_line(ITEM_ITEM_ITEM_HEADER);
match_line(ITEM_ITEM_ITEM_FIELD);
while(1) {
switch (looknext) {
case ITEM_ITEM_ITEM_FIELD:
match_line(ITEM_ITEM_ITEM_FIELD);
break;
default:
goto _end;
}
}
_end:
return 0;
}
static int find_mtd(char *label, char *dev, size_t len)
{
int found;
FILE *fp;
char line[64];
fp = fopen("/proc/mtd", "r");
if (!fp)
return 0;
found = match_line(label, line, sizeof(line), fp);
fclose(fp);
if (found) {
char *ptr;
ptr = strchr(line, ':');
if (!ptr) {
found = 0;
} else {
*ptr = 0;
snprintf(dev, len, "/dev/%s", line);
}
}
return found;
}
/** match_stdin
* Reads up to the maximum number of lines from standard input
*
* Return Value:
* int - the number of matches found or the number of lines without matches
* if the -r flag was used
* struct Globals *gl - the "global" variables for this search
*/
int
match_stdin(struct counters *counter, struct Globals *gl){
char *input_line;
int count = 0;
int status;
int matches = 0;
unsigned int my_flags;
unsigned int num_chars;
int max_lines;
my_flags = gl->my_flags;
num_chars = gl->num_chars;
max_lines = gl->max_lines;
input_line = calloc(sizeof(char), num_chars);
counter->files_read++;
while(matches != max_lines && fgets(input_line, num_chars, stdin) != NULL){
count++;
trim_line(input_line);
status = match_line(input_line, &counter, gl);
if(status == MATCH && (my_flags&REVERSE_SELECTION) != REVERSE_SELECTION){
/* Increments the match counter if a match was found and
the reverse flag was not chosen */
if((my_flags&SUMMARY) != SUMMARY){
/* Prints out the line if the summary flag was not chosen */
pthread_mutex_lock(&mu);
/* Since the server does not read from standard in, no check
needs to be done here. */
fprintf(stdout, "%d: %s\n", count, input_line);
pthread_mutex_unlock(&mu);
}
matches++;
}else if(status == NO_MATCH
&& (my_flags&REVERSE_SELECTION) == REVERSE_SELECTION){
/* Increments the match counter if a match was not found
and the reverse flag was chosen */
if((my_flags&SUMMARY) != SUMMARY){
/* Prints out the line if the summary flag was not chosen */
pthread_mutex_lock(&mu);
/* Since the server does not read from standard in, no check
needs to be done here. */
fprintf(stdout, "%d: %s\n", count, input_line);
pthread_mutex_unlock(&mu);
}
matches++;
}
}
counter->lines_read += count;
counter->lines_matched += matches;
counter->bytes_read += ftell(stdin);
return matches;
/*match_stdin*/
}
int parse_item_item()
{
match_line(ITEM_ITEM_HEADER);
match_line(ITEM_ITEM_FIELD);
while(1) {
switch (looknext) {
case ITEM_ITEM_FIELD:
match_line(ITEM_ITEM_FIELD);
break;
case ITEM_ITEM_ITEM_HEADER:
parse_item_item_item();
default:
goto _end;
}
}
_end:
output_cache(CACHE2, "\t\t};\n", 5);
flush_cache(CACHE3);
return 0;
}
static int is_mounted(char *label)
{
FILE *fp;
int match;
char line[64];
fp = fopen("/proc/mounts", "r");
if (!fp)
return 1;
match = match_line(label, line, sizeof(line), fp);
fclose(fp);
return match;
}
/**
* XXX: we don't actually do floyd
*/
int tga2msx_scr2_tiles()
{
uint16_t x, y, j;
uint16_t yy, qe;
struct scr2 *dst = image_out_scr2;
for (y = 0; y < (tga.height + 7) >> 3; y++) {
for (x = 0; x < (tga.width + 7 ) >> 3; x++) {
/* process 8x8 pixel block */
for (j = 0; j < 8; j++) {
yy = ((y << 3) | j);
*dst++ = match_line(x, yy);
}
}
}
return 0;
}
/** match_file
* Reads up to the maximum number of lines from standard input
*
* Parameters:
* FILE *fptr - the file pointer
* struct Filename *file - the names associated with the file
* struct Globals *gl - the "global" variables for this search
* Return Value:
* int - the number of matches found or the number of lines without matches
* if the -r flag was used
*/
int match_file(FILE *fptr, struct Filename *file, struct Globals *gl){
char *input_line;
int count = 0;
int status;
int matches = 0;
unsigned int my_flags;
unsigned int num_chars;
int max_lines;
my_flags = gl->my_flags;
num_chars = gl->num_chars;
max_lines = gl->max_lines;
input_line = calloc(sizeof(char), num_chars);
file->counters->files_read++;
while(matches != max_lines && fgets(input_line, num_chars, fptr) != NULL){
count++;
trim_line(input_line);
status = match_line(input_line, &(file->counters), gl);
if(status == MATCH && (my_flags&REVERSE_SELECTION) != REVERSE_SELECTION){
/* Increments the match counter if a match was found and
the reverse flag was not chosen */
if((my_flags&SUMMARY) != SUMMARY){
/* Prints out the line if the summary flag was not chosen */
pthread_mutex_lock(&mu);
if(gl->is_network){
char *output;
output = calloc(sizeof(char), gl->path_max);
sprintf(output, "%s,%d: %s\n", file->realptr, count, input_line);
write_output_line(output, gl);
free(output);
}
else{
fprintf(stdout, "%s,%d: %s\n", file->realptr, count, input_line);
}
pthread_mutex_unlock(&mu);
}
matches++;
}else if(status == NO_MATCH
&& (my_flags&REVERSE_SELECTION) == REVERSE_SELECTION){
/* Increments the match counter if a match was not found
and the reverse flag was chosen */
if((my_flags&SUMMARY) != SUMMARY){
/* Prints out the line if the summary flag was not chosen */
pthread_mutex_lock(&mu);
if(gl->is_network){
char *output;
output = calloc(sizeof(char), gl->path_max);
sprintf(output, "%s,%d: %s\n", file->realptr, count, input_line);
write_output_line(output, gl);
free(output);
}
else{
fprintf(stdout, "%s,%d: %s\n", file->realptr, count, input_line);
}
pthread_mutex_unlock(&mu);
}
matches++;
}
}
file->counters->lines_read += count;
file->counters->lines_matched += matches;
file->counters->bytes_read += ftell(fptr);
return matches;
/*match_file*/
}
static int grep_buffer_1(struct grep_opt *opt, const char *name,
char *buf, unsigned long size, int collect_hits)
{
char *bol = buf;
unsigned long left = size;
unsigned lno = 1;
unsigned last_hit = 0;
int binary_match_only = 0;
unsigned count = 0;
int try_lookahead = 0;
enum grep_context ctx = GREP_CONTEXT_HEAD;
xdemitconf_t xecfg;
opt->last_shown = 0;
if (!opt->output)
opt->output = std_output;
if (buffer_is_binary(buf, size)) {
switch (opt->binary) {
case GREP_BINARY_DEFAULT:
binary_match_only = 1;
break;
case GREP_BINARY_NOMATCH:
return 0; /* Assume unmatch */
break;
default:
break;
}
}
memset(&xecfg, 0, sizeof(xecfg));
if (opt->funcname && !opt->unmatch_name_only && !opt->status_only &&
!opt->name_only && !binary_match_only && !collect_hits) {
struct userdiff_driver *drv = userdiff_find_by_path(name);
if (drv && drv->funcname.pattern) {
const struct userdiff_funcname *pe = &drv->funcname;
xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags);
opt->priv = &xecfg;
}
}
try_lookahead = should_lookahead(opt);
while (left) {
char *eol, ch;
int hit;
/*
* look_ahead() skips quicly to the line that possibly
* has the next hit; don't call it if we need to do
* something more than just skipping the current line
* in response to an unmatch for the current line. E.g.
* inside a post-context window, we will show the current
* line as a context around the previous hit when it
* doesn't hit.
*/
if (try_lookahead
&& !(last_hit
&& lno <= last_hit + opt->post_context)
&& look_ahead(opt, &left, &lno, &bol))
break;
eol = end_of_line(bol, &left);
ch = *eol;
*eol = 0;
if ((ctx == GREP_CONTEXT_HEAD) && (eol == bol))
ctx = GREP_CONTEXT_BODY;
hit = match_line(opt, bol, eol, ctx, collect_hits);
*eol = ch;
if (collect_hits)
goto next_line;
/* "grep -v -e foo -e bla" should list lines
* that do not have either, so inversion should
* be done outside.
*/
if (opt->invert)
hit = !hit;
if (opt->unmatch_name_only) {
if (hit)
return 0;
goto next_line;
}
if (hit) {
count++;
if (opt->status_only)
return 1;
if (binary_match_only) {
opt->output(opt, "Binary file ", 12);
output_color(opt, name, strlen(name),
opt->color_filename);
opt->output(opt, " matches\n", 9);
return 1;
}
if (opt->name_only) {
show_name(opt, name);
return 1;
}
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
* When asked to do "count", this still show
* the context which is nonsense, but the user
* deserves to get that ;-).
*/
if (opt->pre_context)
show_pre_context(opt, name, buf, bol, lno);
else if (opt->funcname)
show_funcname_line(opt, name, buf, bol, lno);
if (!opt->count)
show_line(opt, bol, eol, name, lno, ':');
last_hit = lno;
}
else if (last_hit &&
lno <= last_hit + opt->post_context) {
/* If the last hit is within the post context,
* we need to show this line.
*/
show_line(opt, bol, eol, name, lno, '-');
}
next_line:
bol = eol + 1;
if (!left)
break;
left--;
lno++;
}
if (collect_hits)
return 0;
if (opt->status_only)
return 0;
if (opt->unmatch_name_only) {
/* We did not see any hit, so we want to show this */
show_name(opt, name);
return 1;
}
xdiff_clear_find_func(&xecfg);
opt->priv = NULL;
/* NEEDSWORK:
* The real "grep -c foo *.c" gives many "bar.c:0" lines,
* which feels mostly useless but sometimes useful. Maybe
* make it another option? For now suppress them.
*/
if (opt->count && count) {
char buf[32];
output_color(opt, name, strlen(name), opt->color_filename);
output_sep(opt, ':');
snprintf(buf, sizeof(buf), "%u\n", count);
opt->output(opt, buf, strlen(buf));
}
return !!last_hit;
}
static int grep_source_1(struct grep_opt *opt, struct grep_source *gs, int collect_hits)
{
char *bol;
unsigned long left;
unsigned lno = 1;
unsigned last_hit = 0;
int binary_match_only = 0;
unsigned count = 0;
int try_lookahead = 0;
int show_function = 0;
struct userdiff_driver *textconv = NULL;
enum grep_context ctx = GREP_CONTEXT_HEAD;
xdemitconf_t xecfg;
if (!opt->output)
opt->output = std_output;
if (opt->pre_context || opt->post_context || opt->file_break ||
opt->funcbody) {
/* Show hunk marks, except for the first file. */
if (opt->last_shown)
opt->show_hunk_mark = 1;
/*
* If we're using threads then we can't easily identify
* the first file. Always put hunk marks in that case
* and skip the very first one later in work_done().
*/
if (opt->output != std_output)
opt->show_hunk_mark = 1;
}
opt->last_shown = 0;
if (opt->allow_textconv) {
grep_source_load_driver(gs);
/*
* We might set up the shared textconv cache data here, which
* is not thread-safe.
*/
grep_attr_lock();
textconv = userdiff_get_textconv(gs->driver);
grep_attr_unlock();
}
/*
* We know the result of a textconv is text, so we only have to care
* about binary handling if we are not using it.
*/
if (!textconv) {
switch (opt->binary) {
case GREP_BINARY_DEFAULT:
if (grep_source_is_binary(gs))
binary_match_only = 1;
break;
case GREP_BINARY_NOMATCH:
if (grep_source_is_binary(gs))
return 0; /* Assume unmatch */
break;
case GREP_BINARY_TEXT:
break;
default:
die("bug: unknown binary handling mode");
}
}
memset(&xecfg, 0, sizeof(xecfg));
opt->priv = &xecfg;
try_lookahead = should_lookahead(opt);
if (fill_textconv_grep(textconv, gs) < 0)
return 0;
bol = gs->buf;
left = gs->size;
while (left) {
char *eol, ch;
int hit;
/*
* look_ahead() skips quickly to the line that possibly
* has the next hit; don't call it if we need to do
* something more than just skipping the current line
* in response to an unmatch for the current line. E.g.
* inside a post-context window, we will show the current
* line as a context around the previous hit when it
* doesn't hit.
*/
if (try_lookahead
&& !(last_hit
&& (show_function ||
lno <= last_hit + opt->post_context))
&& look_ahead(opt, &left, &lno, &bol))
break;
eol = end_of_line(bol, &left);
ch = *eol;
*eol = 0;
if ((ctx == GREP_CONTEXT_HEAD) && (eol == bol))
ctx = GREP_CONTEXT_BODY;
hit = match_line(opt, bol, eol, ctx, collect_hits);
*eol = ch;
if (collect_hits)
goto next_line;
/* "grep -v -e foo -e bla" should list lines
* that do not have either, so inversion should
* be done outside.
*/
if (opt->invert)
hit = !hit;
if (opt->unmatch_name_only) {
if (hit)
return 0;
goto next_line;
}
if (hit) {
count++;
if (opt->status_only)
return 1;
if (opt->name_only) {
show_name(opt, gs->name);
return 1;
}
if (opt->count)
goto next_line;
if (binary_match_only) {
opt->output(opt, "Binary file ", 12);
output_color(opt, gs->name, strlen(gs->name),
opt->color_filename);
opt->output(opt, " matches\n", 9);
return 1;
}
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
*/
if (opt->pre_context || opt->funcbody)
show_pre_context(opt, gs, bol, eol, lno);
else if (opt->funcname)
show_funcname_line(opt, gs, bol, lno);
show_line(opt, bol, eol, gs->name, lno, ':');
last_hit = lno;
if (opt->funcbody)
show_function = 1;
goto next_line;
}
if (show_function && match_funcname(opt, gs, bol, eol))
show_function = 0;
if (show_function ||
(last_hit && lno <= last_hit + opt->post_context)) {
/* If the last hit is within the post context,
* we need to show this line.
*/
show_line(opt, bol, eol, gs->name, lno, '-');
}
next_line:
bol = eol + 1;
if (!left)
break;
left--;
lno++;
}
if (collect_hits)
return 0;
if (opt->status_only)
return 0;
if (opt->unmatch_name_only) {
/* We did not see any hit, so we want to show this */
show_name(opt, gs->name);
return 1;
}
xdiff_clear_find_func(&xecfg);
opt->priv = NULL;
/* NEEDSWORK:
* The real "grep -c foo *.c" gives many "bar.c:0" lines,
* which feels mostly useless but sometimes useful. Maybe
* make it another option? For now suppress them.
*/
if (opt->count && count) {
char buf[32];
if (opt->pathname) {
output_color(opt, gs->name, strlen(gs->name),
opt->color_filename);
output_sep(opt, ':');
}
snprintf(buf, sizeof(buf), "%u\n", count);
opt->output(opt, buf, strlen(buf));
return 1;
}
return !!last_hit;
}
static int grep_buffer_1(struct grep_opt *opt, const char *name,
char *buf, unsigned long size, int collect_hits)
{
char *bol = buf;
unsigned long left = size;
unsigned lno = 1;
unsigned last_hit = 0;
int binary_match_only = 0;
unsigned count = 0;
enum grep_context ctx = GREP_CONTEXT_HEAD;
xdemitconf_t xecfg;
opt->last_shown = 0;
if (buffer_is_binary(buf, size)) {
switch (opt->binary) {
case GREP_BINARY_DEFAULT:
binary_match_only = 1;
break;
case GREP_BINARY_NOMATCH:
return 0; /* Assume unmatch */
break;
default:
break;
}
}
memset(&xecfg, 0, sizeof(xecfg));
if (opt->funcname && !opt->unmatch_name_only && !opt->status_only &&
!opt->name_only && !binary_match_only && !collect_hits) {
struct userdiff_driver *drv = userdiff_find_by_path(name);
if (drv && drv->funcname.pattern) {
const struct userdiff_funcname *pe = &drv->funcname;
xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags);
opt->priv = &xecfg;
}
}
while (left) {
char *eol, ch;
int hit;
eol = end_of_line(bol, &left);
ch = *eol;
*eol = 0;
if ((ctx == GREP_CONTEXT_HEAD) && (eol == bol))
ctx = GREP_CONTEXT_BODY;
hit = match_line(opt, bol, eol, ctx, collect_hits);
*eol = ch;
if (collect_hits)
goto next_line;
/* "grep -v -e foo -e bla" should list lines
* that do not have either, so inversion should
* be done outside.
*/
if (opt->invert)
hit = !hit;
if (opt->unmatch_name_only) {
if (hit)
return 0;
goto next_line;
}
if (hit) {
count++;
if (opt->status_only)
return 1;
if (binary_match_only) {
printf("Binary file %s matches\n", name);
return 1;
}
if (opt->name_only) {
show_name(opt, name);
return 1;
}
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
* When asked to do "count", this still show
* the context which is nonsense, but the user
* deserves to get that ;-).
*/
if (opt->pre_context)
show_pre_context(opt, name, buf, bol, lno);
else if (opt->funcname)
show_funcname_line(opt, name, buf, bol, lno);
if (!opt->count)
show_line(opt, bol, eol, name, lno, ':');
last_hit = lno;
}
else if (last_hit &&
lno <= last_hit + opt->post_context) {
/* If the last hit is within the post context,
* we need to show this line.
*/
show_line(opt, bol, eol, name, lno, '-');
}
next_line:
bol = eol + 1;
if (!left)
break;
left--;
lno++;
}
if (collect_hits)
return 0;
if (opt->status_only)
return 0;
if (opt->unmatch_name_only) {
/* We did not see any hit, so we want to show this */
show_name(opt, name);
return 1;
}
xdiff_clear_find_func(&xecfg);
opt->priv = NULL;
/* NEEDSWORK:
* The real "grep -c foo *.c" gives many "bar.c:0" lines,
* which feels mostly useless but sometimes useful. Maybe
* make it another option? For now suppress them.
*/
if (opt->count && count)
printf("%s%c%u\n", name,
opt->null_following_name ? '\0' : ':', count);
return !!last_hit;
}
static nx_logdata_t *xm_multiline_input_func(nx_module_input_t *input,
void *data)
{
volatile int i;
nx_logdata_t * volatile retval = NULL;
boolean foundcr = FALSE;
nx_xm_multiline_ctx_t *ctx;
nx_xm_multiline_conf_t *modconf;
nx_module_t *module;
boolean appendline;
boolean gotline;
volatile boolean done = FALSE;
ASSERT(input != NULL);
ASSERT(input->buflen >= 0);
ASSERT(data != NULL);
if ( input->buflen == 0 )
{
return ( NULL );
}
if ( input->ctx == NULL )
{
input->ctx = apr_pcalloc(input->pool, sizeof(nx_xm_multiline_ctx_t));
}
ctx = input->ctx;
module = (nx_module_t *) data;
modconf = (nx_xm_multiline_conf_t *) module->config;
do
{
foundcr = FALSE;
appendline = TRUE;
gotline = FALSE;
for ( i = 0; (i < input->buflen) && (gotline == FALSE) ; i++ )
{
switch ( input->buf[input->bufstart + i] )
{
case APR_ASCII_CR:
if ( foundcr == TRUE )
{
gotline = TRUE;
i--;
}
else
{
foundcr = TRUE;
}
break;
case APR_ASCII_LF:
if ( foundcr == TRUE )
{
gotline = TRUE;
i--;
}
else
{
foundcr = TRUE;
}
break;
default:
if ( foundcr == TRUE )
{
gotline = TRUE;
i--;
}
break;
}
}
if ( ctx->tmpline == NULL )
{
ctx->tmpline = nx_logdata_new_logline(input->buf + input->bufstart, i);
}
else
{
nx_logdata_append_logline(ctx->tmpline, input->buf + input->bufstart, i);
}
//log_info("tmpline: [%s]", ctx->tmpline->raw_event->buf);
if ( foundcr == TRUE )
{ // got a complete line
if ( module->exec != NULL )
{
nx_expr_eval_ctx_t eval_ctx;
nx_exception_t e;
nx_expr_eval_ctx_init(&eval_ctx, ctx->tmpline, module, input);
try
{
nx_expr_statement_list_execute(&eval_ctx, module->exec);
}
catch(e)
{
log_exception(e);
}
if ( eval_ctx.logdata == NULL )
{ // dropped
//log_info("dropped");
appendline = FALSE;
ctx->tmpline = NULL;
}
else
{
// TODO: merge fields
}
nx_expr_eval_ctx_destroy(&eval_ctx);
}
if ( appendline == TRUE )
{ // not dropped
size_t len;
boolean gotheaderline = FALSE;
boolean gotendline = FALSE;
//log_info("appendline");
// ignore trailing new line
for ( len = ctx->tmpline->raw_event->len;
(len > 0) && ((ctx->tmpline->raw_event->buf[len - 1] == APR_ASCII_CR) ||
(ctx->tmpline->raw_event->buf[len - 1] == APR_ASCII_LF)); len--);
// Check headerline
if ( modconf->headerline != NULL )
{
gotheaderline = match_line(modconf->headerline,
ctx->tmpline->raw_event->buf, len);
}
// Check endline
if ( modconf->endline != NULL )
{
gotendline = match_line(modconf->endline,
ctx->tmpline->raw_event->buf, len);
}
// log_debug("gotheader: %d gotend: %d for [%s]", gotheaderline, gotendline,
// ctx->tmpline->raw_event->buf);
if ( (gotendline == TRUE) && (gotheaderline == TRUE) )
{
log_error("HeaderLine and Endline both match");
}
//log_info("gotheaderline: %d string: [%s]", gotheaderline, ctx->tmpline->raw_event->buf);
if ( ctx->logdata == NULL )
{
if ( (modconf->fixedlinecount <= 0) && (gotheaderline == FALSE) )
{ // return if no header is found and there is no fixed linecount
//log_info("return logdata: no header, no fixed linecount");
retval = ctx->tmpline;
ctx->tmpline = NULL;
ctx->linecount = 0;
done = TRUE;
}
else
{
ctx->logdata = ctx->tmpline;
ctx->tmpline = NULL;
(ctx->linecount)++;
}
}
else
{ // there is saved data
if ( gotendline == TRUE )
{
nx_string_append(ctx->logdata->raw_event,
ctx->tmpline->raw_event->buf,
(int) ctx->tmpline->raw_event->len);
nx_logdata_free(ctx->tmpline);
ctx->tmpline = NULL;
retval = ctx->logdata;
ctx->logdata = NULL;
done = TRUE;
}
else if ( gotheaderline == TRUE )
{
//log_info("return logdata %lu: header ok", ctx->logdata);
retval = ctx->logdata;
ctx->logdata = ctx->tmpline;
ctx->tmpline = NULL;
(ctx->linecount)++;
done = TRUE;
}
else
{
nx_string_append(ctx->logdata->raw_event,
ctx->tmpline->raw_event->buf,
(int) ctx->tmpline->raw_event->len);
nx_logdata_free(ctx->tmpline);
ctx->tmpline = NULL;
(ctx->linecount)++;
}
}
// Check FixedLineCount
if ( modconf->fixedlinecount > 0 )
{
if ( ctx->linecount >= modconf->fixedlinecount )
{
//log_info("return logdata: fixed linecount");
retval = ctx->logdata;
ctx->logdata = NULL;
ctx->linecount = 0;
done = TRUE;
}
}
}
}
input->buflen -= i;
input->bufstart += i;
//log_info("buflen: %d, foundcr: %d, i: %d, linecount: %d", input->buflen, foundcr, i, ctx->linecount);
if ( input->buflen <= 0 )
{
done = TRUE;
}
}
while ( done != TRUE );
if ( retval != NULL )
{
nx_string_strip_crlf(retval->raw_event);
}
return ( retval );
}
static int
translate_files(FILE *inFile, FILE *outFile)
{
char *Line = malloc(LINESIZE + 1);
char *path = malloc(LINESIZE + 1);
char *LineOut = malloc(LINESIZE + 1);
int c;
unsigned char ch;
int i = 0;
const char *pc = kdbg_cont;
const char *p = kdbg_prompt;
const char *p_eos = p + sizeof(KDBG_PROMPT) - 1; //end of string pos
if (Line && path && LineOut)
{
memset(Line, '\0', LINESIZE + 1);
if (opt_console)
{
while ((c = fgetc(inFile)) != EOF)
{
if (opt_quit)break;
ch = (unsigned char)c;
if (!opt_raw)
{
switch (ch)
{
case '\n':
if ( strncmp(Line, KDBG_DISCARD, sizeof(KDBG_DISCARD)-1) == 0 )
{
memset(Line, '\0', LINESIZE); // flushed
}
else
{
Line[1] = handle_escape_cmd(outFile, Line, path, LineOut);
if (Line[1] != KDBG_ESC_CHAR)
{
if (p == p_eos)
{
// kdbg prompt, so already echoed char by char
memset(Line, '\0', LINESIZE);
translate_char(c, outFile);
}
else
{
if (match_line(outFile, Line))
{
translate_line(outFile, Line, path, LineOut);
translate_char(c, outFile);
report(outFile);
}
}
}
}
i = 0;
p = kdbg_prompt;
pc = kdbg_cont;
break;
case '<':
i = 0;
Line[i++] = ch;
break;
case '>':
if (ch == *p)
{
p = p_eos;
translate_line(outFile, Line, path, LineOut);
}
if (p != p_eos)
{
if (i < LINESIZE)
{
Line[i++] = ch;
translate_line(outFile, Line, path, LineOut);
}
else
{
translate_line(outFile, Line, path, LineOut);
translate_char(c, outFile);
}
}
else
translate_char(c, outFile);
i = 0;
break;
default:
if (ch == *p)p++;
if (ch == *pc)pc++;
if (i < LINESIZE)
{
Line[i++] = ch;
if (p == p_eos)
{
translate_char(c, outFile);
}
else if (!*pc)
{
translate_line(outFile, Line, path, LineOut);
i = 0;
}
}
else
{
translate_line(outFile, Line, path, LineOut);
translate_char(c, outFile);
i = 0;
}
}
}
else
translate_char(c, outFile);
}
}
else
{ // Line by line, slightly faster but less interactive
while (fgets(Line, LINESIZE, inFile) != NULL)
{
if (opt_quit)break;
if (!opt_raw)
{
translate_line(outFile, Line, path, LineOut);
report(outFile);
}
else
log(outFile, "%s", Line);
}
}
}
if (opt_Revision && (strstr(opt_Revision, "regscan") == opt_Revision))
{
char *s = strchr(opt_Revision, ',');
if (s)
{
*s++ = '\0';
revinfo.range = atoi(s);
}
regscan(outFile);
}
if (opt_stats)
{
stat_print(outFile, &summ);
if (logFile)
stat_print(logFile, &summ);
}
free(LineOut);
free(Line);
free(path);
return 0;
}
static int grep_buffer_1(struct grep_opt *opt, const char *name,
char *buf, unsigned long size, int collect_hits)
{
char *bol = buf;
unsigned long left = size;
unsigned lno = 1;
struct pre_context_line {
char *bol;
char *eol;
} *prev = NULL, *pcl;
unsigned last_hit = 0;
unsigned last_shown = 0;
int binary_match_only = 0;
const char *hunk_mark = "";
unsigned count = 0;
enum grep_context ctx = GREP_CONTEXT_HEAD;
if (buffer_is_binary(buf, size)) {
switch (opt->binary) {
case GREP_BINARY_DEFAULT:
binary_match_only = 1;
break;
case GREP_BINARY_NOMATCH:
return 0; /* Assume unmatch */
break;
default:
break;
}
}
if (opt->pre_context)
prev = xcalloc(opt->pre_context, sizeof(*prev));
if (opt->pre_context || opt->post_context)
hunk_mark = "--\n";
while (left) {
char *eol, ch;
int hit;
eol = end_of_line(bol, &left);
ch = *eol;
*eol = 0;
if ((ctx == GREP_CONTEXT_HEAD) && (eol == bol))
ctx = GREP_CONTEXT_BODY;
hit = match_line(opt, bol, eol, ctx, collect_hits);
*eol = ch;
if (collect_hits)
goto next_line;
/* "grep -v -e foo -e bla" should list lines
* that do not have either, so inversion should
* be done outside.
*/
if (opt->invert)
hit = !hit;
if (opt->unmatch_name_only) {
if (hit)
return 0;
goto next_line;
}
if (hit) {
count++;
if (opt->status_only)
return 1;
if (binary_match_only) {
printf("Binary file %s matches\n", name);
return 1;
}
if (opt->name_only) {
show_name(opt, name);
return 1;
}
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
* When asked to do "count", this still show
* the context which is nonsense, but the user
* deserves to get that ;-).
*/
if (opt->pre_context) {
unsigned from;
if (opt->pre_context < lno)
from = lno - opt->pre_context;
else
from = 1;
if (from <= last_shown)
from = last_shown + 1;
if (last_shown && from != last_shown + 1)
printf(hunk_mark);
while (from < lno) {
pcl = &prev[lno-from-1];
show_line(opt, pcl->bol, pcl->eol,
name, from, '-');
from++;
}
last_shown = lno-1;
}
if (last_shown && lno != last_shown + 1)
printf(hunk_mark);
if (!opt->count)
show_line(opt, bol, eol, name, lno, ':');
last_shown = last_hit = lno;
}
else if (last_hit &&
lno <= last_hit + opt->post_context) {
/* If the last hit is within the post context,
* we need to show this line.
*/
if (last_shown && lno != last_shown + 1)
printf(hunk_mark);
show_line(opt, bol, eol, name, lno, '-');
last_shown = lno;
}
if (opt->pre_context) {
memmove(prev+1, prev,
(opt->pre_context-1) * sizeof(*prev));
prev->bol = bol;
prev->eol = eol;
}
next_line:
bol = eol + 1;
if (!left)
break;
left--;
lno++;
}
free(prev);
if (collect_hits)
return 0;
if (opt->status_only)
return 0;
if (opt->unmatch_name_only) {
/* We did not see any hit, so we want to show this */
show_name(opt, name);
return 1;
}
/* NEEDSWORK:
* The real "grep -c foo *.c" gives many "bar.c:0" lines,
* which feels mostly useless but sometimes useful. Maybe
* make it another option? For now suppress them.
*/
if (opt->count && count)
printf("%s%c%u\n", name,
opt->null_following_name ? '\0' : ':', count);
return !!last_hit;
}