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Move tools_read_mk helper in libcryptsetup_cli.

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This commit is contained in:
Ondrej Kozina
2020-07-30 09:57:46 +02:00
committed by Milan Broz
parent a985c12659
commit 42692418c2
9 changed files with 43 additions and 38 deletions
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33
lib/cli/cli.c
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@@ -34,6 +34,7 @@
#include "nls.h"
#include "utils_loop.h"
#include "utils_io.h"
#include "libcryptsetup.h"
#include "libcryptsetup_cli.h"
#include "cli_internal.h"
@@ -303,6 +304,38 @@ int crypt_cli_get_key(const char *prompt,
return r;
}
int crypt_cli_read_mk(const char *file, char **key, size_t keysize)
{
int fd;
ssize_t ret;
if (!keysize || !key)
return -EINVAL;
*key = crypt_safe_alloc(keysize);
if (!*key)
return -ENOMEM;
fd = open(file, O_RDONLY);
if (fd == -1) {
log_err(_("Cannot read keyfile %s."), file);
goto fail;
}
ret = read_buffer(fd, *key, keysize);
if (ret < 0 || (size_t)ret != keysize) {
log_err(_("Cannot read %d bytes from keyfile %s."), keysize, file);
close(fd);
goto fail;
}
close(fd);
return 0;
fail:
crypt_safe_free(*key);
*key = NULL;
return -EINVAL;
}
static const struct tools_arg *find_arg_in_args(const char *name, const struct tools_arg *args, size_t args_len)
{
size_t i;