Implement -samefile.
Signed-off-by: Aaro Koskinen <aaro.koski...@iki.fi>
---
findutils/find.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/findutils/find.c b/findutils/find.c
index fdc5c152d..87fd5b9bc 100644
--- a/findutils/find.c
+++ b/findutils/find.c
@@ -155,6 +155,13 @@
//config: default y
//config: depends on FIND
//config:
+//config:config FEATURE_FIND_SAMEFILE
+//config: bool "Enable -samefile: reference file matching"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the 'find -samefile' option for searching by a
reference file.
+//config:
//config:config FEATURE_FIND_EXEC
//config: bool "Enable -exec: execute commands"
//config: default y
@@ -350,6 +357,9 @@
//usage: IF_FEATURE_FIND_INUM(
//usage: "\n -inum N File has inode number N"
//usage: )
+//usage: IF_FEATURE_FIND_SAMEFILE(
+//usage: "\n -samefile FILE File is same as FILE"
+//usage: )
//usage: IF_FEATURE_FIND_USER(
//usage: "\n -user NAME/ID File is owned by given user"
//usage: )
@@ -444,6 +454,7 @@ IF_FEATURE_FIND_MTIME( ACTS(mtime, unsigned char
time_type; unsigned char mtime
IF_FEATURE_FIND_MMIN( ACTS(mmin, unsigned char time_type; unsigned char
mmin_char; unsigned mmin_mins;))
IF_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
IF_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
+IF_FEATURE_FIND_SAMEFILE(ACTS(samefile, ino_t inode_num; dev_t device;))
IF_FEATURE_FIND_USER( ACTS(user, uid_t uid;))
IF_FEATURE_FIND_SIZE( ACTS(size, char size_char; off_t size;))
IF_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
@@ -731,6 +742,13 @@ ACTF(inum)
return (statbuf->st_ino == ap->inode_num);
}
#endif
+#if ENABLE_FEATURE_FIND_SAMEFILE
+ACTF(samefile)
+{
+ return statbuf->st_ino == ap->inode_num &&
+ statbuf->st_dev == ap->device;
+}
+#endif
#if ENABLE_FEATURE_FIND_EXEC
static int do_exec(action_exec *ap, const char *fileName)
{
@@ -1125,6 +1143,7 @@ static action*** parse_params(char **argv)
IF_FEATURE_FIND_CMIN( PARM_cmin ,)
IF_FEATURE_FIND_NEWER( PARM_newer ,)
IF_FEATURE_FIND_INUM( PARM_inum ,)
+ IF_FEATURE_FIND_SAMEFILE(PARM_samefile ,)
IF_FEATURE_FIND_USER( PARM_user ,)
IF_FEATURE_FIND_GROUP( PARM_group ,)
IF_FEATURE_FIND_SIZE( PARM_size ,)
@@ -1173,6 +1192,7 @@ static action*** parse_params(char **argv)
IF_FEATURE_FIND_CMIN( "-cmin\0" )
IF_FEATURE_FIND_NEWER( "-newer\0" )
IF_FEATURE_FIND_INUM( "-inum\0" )
+ IF_FEATURE_FIND_SAMEFILE("-samefile\0")
IF_FEATURE_FIND_USER( "-user\0" )
IF_FEATURE_FIND_GROUP( "-group\0" )
IF_FEATURE_FIND_SIZE( "-size\0" )
@@ -1511,6 +1531,21 @@ static action*** parse_params(char **argv)
ap->inode_num = xatoul(arg1);
}
#endif
+#if ENABLE_FEATURE_FIND_SAMEFILE
+ else if (parm == PARM_samefile) {
+ action_samefile *ap;
+ struct stat stbuf;
+ dbg("%d", __LINE__);
+ if (G.recurse_flags & (ACTION_FOLLOWLINKS |
+ ACTION_FOLLOWLINKS_L0))
+ xstat(arg1, &stbuf);
+ else if (lstat(arg1, &stbuf))
+ bb_perror_msg_and_die("can't stat '%s'", arg1);
+ ap = ALLOC_ACTION(samefile);
+ ap->inode_num = stbuf.st_ino;
+ ap->device = stbuf.st_dev;
+ }
+#endif
#if ENABLE_FEATURE_FIND_USER
else if (parm == PARM_user) {
action_user *ap;
--
2.17.0
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