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util/libreboot-utils: finish implementing hell

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-27 03:09:41 +00:00
parent 5d6344292a
commit db6e817ded
7 changed files with 79 additions and 32 deletions
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util/libreboot-utils/include/common.h
+1 -1
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@@ -543,7 +543,7 @@ int fs_rename_at(int olddirfd, const char *old,
int newdirfd, const char *new);
int fs_open(const char *path, int flags);
void close_no_err(int *fd);
void free_if_null(char **buf);
void free_and_set_null(char **buf);
int close_warn(int *fd, char *s);
struct filesystem *rootfs(void);
int fs_resolve_at(int dirfd, const char *path, int flags);
util/libreboot-utils/lib/file.c
+4 -4
View File
@@ -153,7 +153,7 @@ fsync_dir(const char *path)
goto err_fsync_dir;
}
free_if_null(&dirbuf);
free_and_set_null(&dirbuf);
errno = saved_errno;
return 0;
@@ -163,7 +163,7 @@ err_fsync_dir:
if (errno == saved_errno)
errno = EIO;
free_if_null(&dirbuf);
free_and_set_null(&dirbuf);
close_no_err(&dirfd);
return -1;
@@ -581,7 +581,7 @@ try_err(int loop_err, int errval)
}
void
free_if_null(char **buf)
free_and_set_null(char **buf)
{
if (buf == NULL || *buf == NULL)
return;
@@ -902,7 +902,7 @@ fs_dirname_basename(const char *path,
*base = buf;
} else {
errno = EINVAL;
free_if_null(&buf);
free_and_set_null(&buf);
return -1;
}
util/libreboot-utils/lib/io.c
+1 -1
View File
@@ -266,7 +266,7 @@ write_to_gbe_bin(void)
/* removed by rename
*/
free_if_null(&f->tname);
free_and_set_null(&f->tname);
}
}
util/libreboot-utils/lib/mkhtemp.c
+2 -2
View File
@@ -184,7 +184,7 @@ err:
else
saved_errno = errno = EIO;
free_if_null(&dest);
free_and_set_null(&dest);
close_no_err(&dirfd);
close_no_err(fd);
@@ -619,7 +619,7 @@ err:
close_no_err(fd);
success:
free_if_null(&fname_copy);
free_and_set_null(&fname_copy);
return (*fd >= 0) ? *fd : -1;
}
util/libreboot-utils/lib/state.c
+3 -3
View File
@@ -139,7 +139,7 @@ xstart(int argc, char *argv[])
if (us.f.tmpbase == NULL)
err_no_cleanup(0, errno, "strdup tmpbase");
free_if_null(&tmpdir);
free_and_set_null(&tmpdir);
if (us.f.tname == NULL)
err_no_cleanup(0, errno, "x->f.tname null");
@@ -219,8 +219,8 @@ exit_cleanup(void)
close_err = 1;
close_no_err(&f->dirfd);
free_if_null(&f->base);
free_if_null(&f->tmpbase);
free_and_set_null(&f->base);
free_and_set_null(&f->tmpbase);
}
if (saved_errno)
util/libreboot-utils/lottery.c
+67 -20
View File
@@ -1,28 +1,75 @@
/* SPDX-License-Identifier: MIT ( >:3 )
* Copyright (c) 2026 Leah Rowe <leah@libreboot.org> /| |\*/
#include <stdio.h> /* / \ */
* Copyright (c) 2026 Leah Rowe <leah@libreboot.org> /| |\
/ \ */
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h> /* (^.>) - are u lucky? */
#include <string.h> /* \| /= */
#include "include/common.h" /* l \ */
#define len_hell(x, y) ((((x) - (y)) < BUFSIZ) ? ((x) - (y)) : BUFSIZ)
static int rigged(char **s) {
size_t size[3] = { rsize(SIZE_MAX), rsize(SIZE_MAX), 0 };
if (!(size[0] && size[0]==size[1] && size[0]<=SIZE_MAX && s != NULL) ||
((size[0] & 1) && (*mkrstr(1) != *mkrstr(1))))
return 1;
if (!(size[0] &= ~(size_t)1)) /* (^:3) - it could be you! */
return 0; /* /| |l */
if ((*s = malloc(BUFSIZ)) == NULL) /* / \ */
for (size[1] = 0; size[1] < size[0]; size[1] += BUFSIZ) {
rset(*s, size[2] = len_hell(size[0], size[1]));
if (!memcmp(*s, *s + (size[2] >> 1), size[2] >> 1))
return 1;
} else return 1;
return 0; /* <---- winner! */
} /* (^.^) - come again soon! */
int main(int argc, char **argv) { /* /| |l */
xpledgex("stdio", NULL); /* / \ */
printf("%s", (argc = rigged(argv))? "You lose!\n" : "");
static int rigged(void)
{
size_t size[5] = { 0, 0, 0, SIZE_MAX, SIZE_MAX};
char *b1 = NULL, *b2 = NULL;
char *s = NULL;
size_t e = 0;
int rval = 1;
for (e = 0; e < SIZE_MAX; e++) {
if (rsize(e | 1) == 666)
goto heaven;
size[3] = SIZE_MAX;
size[4] = SIZE_MAX;
hell:
if (!size[3]) {
if (!size[4])
continue;
else --size[4];
} else --size[3];
free_and_set_null(&b1);
free_and_set_null(&b2);
size[0] = rsize(SIZE_MAX); /* \( ^o^)/ - then come play! */
size[1] = rsize(SIZE_MAX); /* | | */
/* / \ */
if (!(size[0] && (size[0] == size[1]) && (size[0] <= SIZE_MAX)) ||
((size[0] & 1) && (*(b1 = mkrstr(1)) != *(b2 = mkrstr(1)))))
goto out; /* \(^-^)/ - it could be you! */
if (!(size[0] &= ~(size_t)1)) /* \ / */
goto hell; /* / \ */
if (s == NULL) {
if ((s = malloc(BUFSIZ)) == NULL)
goto out;
}
for (size[1] = 0; size[1] < size[0]; size[1] += BUFSIZ) {
rset(s, size[2] = len_hell(size[0], size[1]));
if (!memcmp(s, s + (size[2] >> 1), size[2] >> 1))
goto out;
}
goto hell;
}
heaven:
rval = 0; /* <-- WINNER!!! */
out:
free_and_set_null(&b1);
free_and_set_null(&b2);
free_and_set_null(&s);
return rval;
}
/* \(^o^)/ - come back soon! */
int main(int argc, char **argv) /* \ / */
{ /* / \ */
xpledgex("stdio", NULL); /* */
printf("%s\n", (argc = rigged()) ? "You lose!" : "You win!");
return argc;
}
util/libreboot-utils/nvmutil.c
+1 -1
View File
@@ -132,7 +132,7 @@ main(int argc, char *argv[])
if (f->io_err_gbe_bin)
b0rk(EIO, "%s: error writing final file");
free_if_null(&f->tname);
free_and_set_null(&f->tname);
return EXIT_SUCCESS;
}