X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=tfc_error.c;h=4d64afde69f5c3be13151e53a4e12ed6e98aecb0;hb=ef3f3a7b878b0be4da7a22a6954f378aa86561e3;hp=01cca1ac5c153247ae02b86cacbd31abec3cd7af;hpb=9ac86c906f37b9b9dce4f018c90d420f947e05a9;p=tfcrypt.git

diff --git a/tfc_error.c b/tfc_error.c
index 01cca1a..4d64afd 100644
--- a/tfc_error.c
+++ b/tfc_error.c
@@ -148,6 +148,7 @@ void usage(void)
 		tfc_say("  -a: shortcut of -O xtime.");
 		tfc_say("  -l length: read only these first bytes of source.");
 		tfc_say("  -O opts: set options (comma separated list):");
+		tfc_say("    ro: open all files only for reading, even those intended for writing,");
 		tfc_say("    sync: request a synchronous I/O for a output,");
 		tfc_say("    fsync: on each write() call a corresponding fsync(fd),");
 		tfc_say("    trunc: open(O_WRONLY) will truncate output file to zero size.");
@@ -163,6 +164,8 @@ void usage(void)
 		tfc_say("    iobs=val: set IO block size value. Must not exceed %u bytes.", TFC_U(TFC_BLKSIZE));
 		tfc_say("    iseek=val: seek source file/device by these val bytes.");
 		tfc_say("    oseek=val: seek destination file/device by these val bytes.");
+		tfc_say("    ioseek=val: seek both source and destination.");
+		tfc_say("    ioseek is equal to iseek and oseek.");
 		tfc_say("    count=val: process only these val bytes, both input and output.");
 		tfc_say("    ftrunc=val: truncate output file to these val bytes before closing it.");
 		tfc_say("    ftrunc=tail: truncate output's tail, leaving only processed data.");
@@ -315,6 +318,7 @@ void usage(void)
 	tfc_say("    Multiple -E specifiers may be given in separate options.");
 	tfc_say("  -o logfile: redirect all messages to logfile instead of stderr.");
 	tfc_say("  -O opts: set options (comma separated list):");
+	tfc_say("    ro: open all files only for reading, even those intended for writing,");
 	tfc_say("    sync: request a synchronous I/O for a output,");
 	tfc_say("    fsync: on each write() call a corresponding fsync(fd),");
 	tfc_say("    trunc: open(O_WRONLY) will truncate output file to zero size.");
@@ -348,6 +352,8 @@ void usage(void)
 	tfc_say("    ixctr=val: Increment initial counter by this val bytes.");
 	tfc_say("    Internally this number is translated into number of %u byte blocks.", TFC_U(TF_BLOCK_SIZE));
 	tfc_say("    oseek=val: seek destination file/device by these val bytes.");
+	tfc_say("    ioseek=val: seek both source and destination.");
+	tfc_say("    ioseek is equal to iseek and oseek.");
 	tfc_say("    count=val: process only these val bytes, both input and output.");
 	tfc_say("    ftrunc=val: truncate output file to these val bytes before closing it.");
 	tfc_say("    ftrunc=tail: truncate output's tail, leaving only processed data.");