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test: add -L support to test if it's a symbolic link 

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-08-16 21:36:42 +08:00
parent 0e22047a99
commit f26472f2d1
1 changed files with 9 additions and 2 deletions
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11
commands/test.c
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@ -43,6 +43,7 @@ typedef enum {
OPT_DIRECTORY,
OPT_FILE,
OPT_EXISTS,
OPT_SYMBOLIC_LINK,
OPT_MAX,
} test_opts;
@ -62,6 +63,7 @@ static char *test_options[] = {
[OPT_FILE] = "-f",
[OPT_DIRECTORY] = "-d",
[OPT_EXISTS] = "-e",
[OPT_SYMBOLIC_LINK] = "-L",
};
static int parse_opt(const char *opt)
@ -140,9 +142,10 @@ static int do_test(int argc, char *argv[])
case OPT_FILE:
case OPT_DIRECTORY:
case OPT_EXISTS:
case OPT_SYMBOLIC_LINK:
adv = 2;
if (ap[1] && *ap[1] != ']' && strlen(ap[1])) {
expr = stat(ap[1], &statbuf);
expr = (opt == OPT_SYMBOLIC_LINK ? lstat : stat)(ap[1], &statbuf);
if (expr < 0) {
expr = 0;
break;
@ -160,6 +163,10 @@ static int do_test(int argc, char *argv[])
expr = 1;
break;
}
if (opt == OPT_SYMBOLIC_LINK && S_ISLNK(statbuf.st_mode)) {
expr = 1;
break;
}
}
break;
@ -224,7 +231,7 @@ static const char *test_aliases[] = { "[", NULL};
static const __maybe_unused char cmd_test_help[] =
"Usage: test [OPTIONS]\n"
"options: !, =, !=, -eq, -ne, -ge, -gt, -le, -lt, -o, -a, -z, -n, -d, -e, -f\n"
"options: !, =, !=, -eq, -ne, -ge, -gt, -le, -lt, -o, -a, -z, -n, -d, -e, -f, -L\n"
"see 'man test' on your PC for more information.\n";
static const __maybe_unused char cmd_test_usage[] = "minimal test like /bin/sh";