static int
grep_or_recurse(char *filename, BOOL dir_recurse, BOOL show_filenames,
BOOL only_one_at_top)
{
int rc = 1;
int sep;
FILE *in;
/* If the file is a directory and we are recursing, scan each file within it.
The scanning code is localized so it can be made system-specific. */
if ((sep = isdirectory(filename)) != 0 && dir_recurse)
{
char buffer[1024];
char *nextfile;
directory_type *dir = opendirectory(filename);
if (dir == NULL)
{
fprintf(stderr, "pcregrep: Failed to open directory %s: %s\n", filename,
strerror(errno));
return 2;
}
while ((nextfile = readdirectory(dir)) != NULL)
{
int frc;
sprintf(buffer, "%.512s%c%.128s", filename, sep, nextfile);
frc = grep_or_recurse(buffer, dir_recurse, TRUE, FALSE);
if (frc == 0 && rc == 1) rc = 0;
}
closedirectory(dir);
return rc;
}
/* If the file is not a directory, or we are not recursing, scan it. If this is
the first and only argument at top level, we don't show the file name (unless
we are only showing the file name). Otherwise, control is via the
show_filenames variable. */
in = fopen(filename, "r");
if (in == NULL)
{
fprintf(stderr, "pcregrep: Failed to open %s: %s\n", filename, strerror(errno));
return 2;
}
rc = pcregrep(in, (filenames_only || (show_filenames && !only_one_at_top))?
filename : NULL);
fclose(in);
return rc;
}
static int
grep_or_recurse(char *pathname, BOOL dir_recurse, BOOL show_filenames,
BOOL only_one_at_top)
{
int rc = 1;
int sep;
FILE *in;
char *printname;
/* If the file name is "-" we scan stdin */
if (strcmp(pathname, "-") == 0)
{
return pcregrep(stdin,
(filenames_only || filenames_nomatch_only ||
(show_filenames && !only_one_at_top))?
stdin_name : NULL);
}
/* If the file is a directory and we are recursing, scan each file within it,
subject to any include or exclude patterns that were set. The scanning code is
localized so it can be made system-specific. */
if ((sep = isdirectory(pathname)) != 0 && dir_recurse)
{
char buffer[1024];
char *nextfile;
directory_type *dir = opendirectory(pathname);
if (dir == NULL)
{
if (!silent)
fprintf(stderr, "pcregrep: Failed to open directory %s: %s\n", pathname,
strerror(errno));
return 2;
}
while ((nextfile = readdirectory(dir)) != NULL)
{
int frc, blen;
sprintf(buffer, "%.512s%c%.128s", pathname, sep, nextfile);
blen = strlen(buffer);
if (exclude_compiled != NULL &&
pcre_exec(exclude_compiled, NULL, buffer, blen, 0, 0, NULL, 0) >= 0)
continue;
if (include_compiled != NULL &&
pcre_exec(include_compiled, NULL, buffer, blen, 0, 0, NULL, 0) < 0)
continue;
frc = grep_or_recurse(buffer, dir_recurse, TRUE, FALSE);
if (frc > 1) rc = frc;
else if (frc == 0 && rc == 1) rc = 0;
}
closedirectory(dir);
return rc;
}
/* If the file is not a directory, or we are not recursing, scan it. If this is
the first and only argument at top level, we don't show the file name (unless
we are only showing the file name). Otherwise, control is via the
show_filenames variable. */
in = fopen(pathname, "r");
if (in == NULL)
{
if (!silent)
fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pathname,
strerror(errno));
return 2;
}
printname = (filenames_only || filenames_nomatch_only ||
(show_filenames && !only_one_at_top))? pathname : NULL;
rc = pcregrep(in, printname);
fclose(in);
return rc;
}
