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#include "config.h"
#include "tar.h"
#include "logerr.h"
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdbool.h>
/*
About the ustar format:
- name[100] can only contain 100 bytes, while PATH_MAX's minimum value is 256
for `_POSIX_PATH_MAX`, and 1024 for _XOPEN_PATH_MAX. Wait! Actually there is
a "prefix" field, which is probably what I'm looking for;
- characters are encoded in ISO/IEC 646:1991 [0] instead of UTF-8, even though
it requires the file names to be conformant to the POSIX filename
restrictions;
[0]: https://en.wikipedia.org/wiki/ISO/IEC_646
*/
/*
* Implementation of the "ustar archive tape" (tar) format, conformant to the
* specification [0].
*
* [0]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
*/
static void
logerr(
const char *const s,
const char *const msg,
const int lineno
) {
logerr_file(s, msg, __FILE__, lineno);
}
static void
logerrs(
const char *const pre,
const char *const mid,
const char *const post,
const char *const msg,
const int lineno
) {
logerrs_file(pre, mid, post, msg, __FILE__, lineno);
}
static void
logerrl(
const char *const pre,
const size_t mid,
const char *const post,
const char *const msg,
const int lineno
) {
logerrl_file(pre, mid, post, msg, __FILE__, lineno);
}
struct TarEntry {
// What size the spec says?
unsigned int begin;
};
// static int tar_write(FILE *const fd,
int
tarball_write_from_directory(
const FILE *const fd,
const char *const directory_path
) {
int ret = 0;
struct TarEntry *entry = NULL;
(void)directory_path;
(void)fd;
if (!(entry = malloc(sizeof(struct TarEntry)))) {
logerrl("malloc(", sizeof(struct TarEntry), ")",
strerror(errno), __LINE__);
ret = -1;
goto cleanup;
}
if (false) {
logerrs("", "", "", "", 0);
logerr("", "", 0);
}
cleanup:
free(entry);
return ret;
}
#ifdef TEST
void
unit_tests_tar(void) {}
#endif
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