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LD_PRELOAD: add dup2 support so we can use it with dd

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Ronnie Sahlberg
2011-02-13 07:36:26 +11:00
parent 0c6025b01b
commit 52b7ae3152
2 changed files with 148 additions and 68 deletions
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README
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@@ -94,6 +94,8 @@ Change: 1970-01-01 10:00:00.000000000 +1000
The cat command, which allows you to read/dump a iSCSI LUN to a file :
$ LD_PRELOAD=./bin/ld_iscsi.so cat iscsi://127.0.0.1:3262/iqn.ronnie.test/2 >copy_of_iscsi_lun
Or using dd even :
LD_PRELOAD=./bin/ld_iscsi.so strace -o x -f dd if=iscsi://127.0.0.1:3262/iqn.ronnie.test/2 of=copy_of_LUN bs=10M count=1 bs=1M count=10
The LD_PRELOAD hack is incomplete and needs more functions to be intercepted before becomming fully functional. Patches welcome!