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busybox/findutils/find.c
Rob Landley d921b2ecc0 Remove bb_ prefixes from xfuncs.c (and a few other places), consolidate 
things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes...  General cleanup pass.  What I've
been doing for the last couple days.

And it conflicts!  I've removed httpd.c from this checkin due to somebody else
touching that file.  It builds for me.  I have to catch a bus.  (Now you know
why I'm looking forward to Mercurial.)
2006-08-03 15:41:12 +00:00

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/* vi: set sw=4 ts=4: */
/*
* Mini find implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Reworked by David Douthitt <n9ubh@callsign.net> and
* Matt Kraai <kraai@alumni.carnegiemellon.edu>.
*
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
#include "busybox.h"
#include <fnmatch.h>
static char *pattern;
#ifdef CONFIG_FEATURE_FIND_PRINT0
static char printsep = '\n';
#endif
#ifdef CONFIG_FEATURE_FIND_TYPE
static int type_mask = 0;
#endif
#ifdef CONFIG_FEATURE_FIND_PERM
static char perm_char = 0;
static int perm_mask = 0;
#endif
#ifdef CONFIG_FEATURE_FIND_MTIME
static char mtime_char;
static int mtime_days;
#endif
#ifdef CONFIG_FEATURE_FIND_MMIN
static char mmin_char;
static int mmin_mins;
#endif
#ifdef CONFIG_FEATURE_FIND_XDEV
static dev_t *xdev_dev;
static int xdev_count = 0;
#endif
#ifdef CONFIG_FEATURE_FIND_NEWER
static time_t newer_mtime;
#endif
#ifdef CONFIG_FEATURE_FIND_INUM
static ino_t inode_num;
#endif
#ifdef CONFIG_FEATURE_FIND_EXEC
static char **exec_str;
static int num_matches;
static int exec_opt;
#endif
static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
{
#ifdef CONFIG_FEATURE_FIND_XDEV
if (S_ISDIR(statbuf->st_mode) && xdev_count) {
int i;
for (i=0; i<xdev_count; i++) {
if (xdev_dev[i] != statbuf->st_dev)
return SKIP;
}
}
#endif
if (pattern != NULL) {
const char *tmp = strrchr(fileName, '/');
if (tmp == NULL)
tmp = fileName;
else
tmp++;
if (!(fnmatch(pattern, tmp, FNM_PERIOD) == 0))
goto no_match;
}
#ifdef CONFIG_FEATURE_FIND_TYPE
if (type_mask != 0) {
if (!((statbuf->st_mode & S_IFMT) == type_mask))
goto no_match;
}
#endif
#ifdef CONFIG_FEATURE_FIND_PERM
if (perm_mask != 0) {
if (!((isdigit(perm_char) && (statbuf->st_mode & 07777) == perm_mask) ||
(perm_char == '-' && (statbuf->st_mode & perm_mask) == perm_mask) ||
(perm_char == '+' && (statbuf->st_mode & perm_mask) != 0)))
goto no_match;
}
#endif
#ifdef CONFIG_FEATURE_FIND_MTIME
if (mtime_char != 0) {
time_t file_age = time(NULL) - statbuf->st_mtime;
time_t mtime_secs = mtime_days * 24 * 60 * 60;
if (!((isdigit(mtime_char) && file_age >= mtime_secs &&
file_age < mtime_secs + 24 * 60 * 60) ||
(mtime_char == '+' && file_age >= mtime_secs + 24 * 60 * 60) ||
(mtime_char == '-' && file_age < mtime_secs)))
goto no_match;
}
#endif
#ifdef CONFIG_FEATURE_FIND_MMIN
if (mmin_char != 0) {
time_t file_age = time(NULL) - statbuf->st_mtime;
time_t mmin_secs = mmin_mins * 60;
if (!((isdigit(mmin_char) && file_age >= mmin_secs &&
file_age < mmin_secs + 60) ||
(mmin_char == '+' && file_age >= mmin_secs + 60) ||
(mmin_char == '-' && file_age < mmin_secs)))
goto no_match;
}
#endif
#ifdef CONFIG_FEATURE_FIND_NEWER
if (newer_mtime != 0) {
time_t file_age = newer_mtime - statbuf->st_mtime;
if (file_age >= 0)
goto no_match;
}
#endif
#ifdef CONFIG_FEATURE_FIND_INUM
if (inode_num != 0) {
if (!(statbuf->st_ino == inode_num))
goto no_match;
}
#endif
#ifdef CONFIG_FEATURE_FIND_EXEC
if (exec_opt) {
int i;
char *cmd_string = "";
for (i = 0; i < num_matches; i++)
cmd_string = xasprintf("%s%s%s", cmd_string, exec_str[i], fileName);
cmd_string = xasprintf("%s%s", cmd_string, exec_str[num_matches]);
system(cmd_string);
goto no_match;
}
#endif
#ifdef CONFIG_FEATURE_FIND_PRINT0
printf("%s%c", fileName, printsep);
#else
puts(fileName);
#endif
no_match:
return (TRUE);
}
#ifdef CONFIG_FEATURE_FIND_TYPE
static int find_type(char *type)
{
int mask = 0;
switch (type[0]) {
case 'b':
mask = S_IFBLK;
break;
case 'c':
mask = S_IFCHR;
break;
case 'd':
mask = S_IFDIR;
break;
case 'p':
mask = S_IFIFO;
break;
case 'f':
mask = S_IFREG;
break;
case 'l':
mask = S_IFLNK;
break;
case 's':
mask = S_IFSOCK;
break;
}
if (mask == 0 || type[1] != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, type, "-type");
return mask;
}
#endif
int find_main(int argc, char **argv)
{
int dereference = FALSE;
int i, firstopt, status = EXIT_SUCCESS;
for (firstopt = 1; firstopt < argc; firstopt++) {
if (argv[firstopt][0] == '-')
break;
}
/* Parse any options */
for (i = firstopt; i < argc; i++) {
if (strcmp(argv[i], "-follow") == 0)
dereference = TRUE;
else if (strcmp(argv[i], "-print") == 0) {
;
}
#ifdef CONFIG_FEATURE_FIND_PRINT0
else if (strcmp(argv[i], "-print0") == 0)
printsep = '\0';
#endif
else if (strcmp(argv[i], "-name") == 0) {
if (++i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-name");
pattern = argv[i];
#ifdef CONFIG_FEATURE_FIND_TYPE
} else if (strcmp(argv[i], "-type") == 0) {
if (++i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-type");
type_mask = find_type(argv[i]);
#endif
#ifdef CONFIG_FEATURE_FIND_PERM
} else if (strcmp(argv[i], "-perm") == 0) {
char *end;
if (++i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-perm");
perm_mask = strtol(argv[i], &end, 8);
if ((end[0] != '\0') || (perm_mask > 07777))
bb_error_msg_and_die(bb_msg_invalid_arg, argv[i], "-perm");
if ((perm_char = argv[i][0]) == '-')
perm_mask = -perm_mask;
#endif
#ifdef CONFIG_FEATURE_FIND_MTIME
} else if (strcmp(argv[i], "-mtime") == 0) {
char *end;
if (++i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-mtime");
mtime_days = strtol(argv[i], &end, 10);
if (end[0] != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, argv[i], "-mtime");
if ((mtime_char = argv[i][0]) == '-')
mtime_days = -mtime_days;
#endif
#ifdef CONFIG_FEATURE_FIND_MMIN
} else if (strcmp(argv[i], "-mmin") == 0) {
char *end;
if (++i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-mmin");
mmin_mins = strtol(argv[i], &end, 10);
if (end[0] != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, argv[i], "-mmin");
if ((mmin_char = argv[i][0]) == '-')
mmin_mins = -mmin_mins;
#endif
#ifdef CONFIG_FEATURE_FIND_XDEV
} else if (strcmp(argv[i], "-xdev") == 0) {
struct stat stbuf;
xdev_count = ( firstopt - 1 ) ? ( firstopt - 1 ) : 1;
xdev_dev = xmalloc ( xdev_count * sizeof( dev_t ));
if ( firstopt == 1 ) {
xstat ( ".", &stbuf );
xdev_dev [0] = stbuf. st_dev;
}
else {
for (i = 1; i < firstopt; i++) {
xstat ( argv [i], &stbuf );
xdev_dev [i-1] = stbuf. st_dev;
}
}
#endif
#ifdef CONFIG_FEATURE_FIND_NEWER
} else if (strcmp(argv[i], "-newer") == 0) {
struct stat stat_newer;
if (++i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-newer");
xstat (argv[i], &stat_newer);
newer_mtime = stat_newer.st_mtime;
#endif
#ifdef CONFIG_FEATURE_FIND_INUM
} else if (strcmp(argv[i], "-inum") == 0) {
char *end;
if (++i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-inum");
inode_num = strtol(argv[i], &end, 10);
if (end[0] != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, argv[i], "-inum");
#endif
#ifdef CONFIG_FEATURE_FIND_EXEC
} else if (strcmp(argv[i], "-exec") == 0) {
int b_pos;
char *cmd_string = "";
while (i++) {
if (i == argc)
bb_error_msg_and_die(bb_msg_requires_arg, "-exec");
if (*argv[i] == ';')
break;
cmd_string = xasprintf("%s %s", cmd_string, argv[i]);
}
if (*cmd_string == 0)
bb_error_msg_and_die(bb_msg_requires_arg, "-exec");
cmd_string++;
exec_str = xmalloc(sizeof(char *));
while ((b_pos = strstr(cmd_string, "{}") - cmd_string), (b_pos >= 0)) {
num_matches++;
exec_str = xrealloc(exec_str, (num_matches + 1) * sizeof(char *));
exec_str[num_matches - 1] = xstrndup(cmd_string, b_pos);
cmd_string += b_pos + 2;
}
exec_str[num_matches] = xstrdup(cmd_string);
exec_opt = 1;
#endif
} else
bb_show_usage();
}
if (firstopt == 1) {
if (! recursive_action(".", TRUE, dereference, FALSE, fileAction,
fileAction, NULL))
status = EXIT_FAILURE;
} else {
for (i = 1; i < firstopt; i++) {
if (! recursive_action(argv[i], TRUE, dereference, FALSE, fileAction,
fileAction, NULL))
status = EXIT_FAILURE;
}
}
return status;
}
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