From aaade69ce9faac6c05ab8b800fc9e9d4dee8ed54 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sun, 28 Nov 2021 12:11:48 +0200 Subject: find: implement -samefile function old new delta parse_params 1461 1606 +145 func_samefile - 42 +42 packed_usage 34079 34102 +23 static.params 261 271 +10 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/0 up/down: 220/0) Total: 220 bytes Signed-off-by: Aaro Koskinen Signed-off-by: Denys Vlasenko --- findutils/find.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'findutils') diff --git a/findutils/find.c b/findutils/find.c index fdc5c15..bb6ad31 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; -- cgit v1.1