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| author | Stephen Warren <swarren@nvidia.com> | 2014-02-03 13:21:03 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-02-19 09:47:33 -0500 |
| commit | 4c80f29edd33cc613d01c5e93dde380b98d3c20c (patch) | |
| tree | d8f9f205d32d1d02d446ad97813aaeb613273d10 | |
| parent | 490ba833d5a7804ca81b13b3f8f2c37aadc40009 (diff) | |
| download | u-boot-imx-4c80f29edd33cc613d01c5e93dde380b98d3c20c.zip u-boot-imx-4c80f29edd33cc613d01c5e93dde380b98d3c20c.tar.gz u-boot-imx-4c80f29edd33cc613d01c5e93dde380b98d3c20c.tar.bz2 | |
cmd_test: check for binary operators before unary
This better mirrors the behaviour of bash, for example:
$ if test -z = -z; then echo yes; else echo no; fi
yes
This is parsed as a string comparison of "-z" and "-z", since the check
for the binary "=" operator occurs first. Without this change, the
command would be parsed as a -z test of "-", followed by a syntax error;
a trailing -z without and operand.
This is a behavioural change, but I believe any commands affected were
previously invalid or bizarely formed.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
| -rw-r--r-- | common/cmd_test.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/common/cmd_test.c b/common/cmd_test.c index 69b1b4c..e65dd53 100644 --- a/common/cmd_test.c +++ b/common/cmd_test.c @@ -39,10 +39,6 @@ const struct { int op; int adv; } op_adv[] = { - {0, "-o", OP_OR, 1}, - {0, "-a", OP_AND, 1}, - {0, "-z", OP_STR_EMPTY, 2}, - {0, "-n", OP_STR_NEMPTY, 2}, {1, "=", OP_STR_EQ, 3}, {1, "!=", OP_STR_NEQ, 3}, {1, "<", OP_STR_LT, 3}, @@ -53,6 +49,10 @@ const struct { {1, "-le", OP_INT_LE, 3}, {1, "-gt", OP_INT_GT, 3}, {1, "-ge", OP_INT_GE, 3}, + {0, "-o", OP_OR, 1}, + {0, "-a", OP_AND, 1}, + {0, "-z", OP_STR_EMPTY, 2}, + {0, "-n", OP_STR_NEMPTY, 2}, }; static int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |