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fileio: add new helper write_base64_file_at() which encodes a binary object into base64 and writes it to a file

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This commit is contained in:
Lennart Poettering
2024-06-14 22:50:33 +01:00
committed by Luca Boccassi
parent 73fade298a
commit dc163cd40b
3 changed files with 21 additions and 8 deletions
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src/pcrlock/pcrlock.c
+3 -8
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@@ -4391,15 +4391,10 @@ static int write_boot_policy_file(const char *json_text) {
if (r < 0)
return log_error_errno(r, "Failed to encode policy as credential: %m");
_cleanup_free_ char *base64_buf = NULL;
ssize_t base64_size;
base64_size = base64mem_full(encoded.iov_base, encoded.iov_len, 79, &base64_buf);
if (base64_size < 0)
return base64_size;
r = write_string_file(
r = write_base64_file_at(
AT_FDCWD,
boot_policy_file,
base64_buf,
&encoded,
WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_MKDIR_0755);
if (r < 0)
return log_error_errno(r, "Failed to write boot policy file to '%s': %m", boot_policy_file);