mirror of
https://codeberg.org/libreboot/lbmk.git
synced 2026-07-11 14:02:52 +02:00
Leah Rowe
55f0e6ac8e
i no longer care about openbsd 5.9. we assume unveil is available, as has been the case for the past 12 years. i use wrappers for unveil and pledge, which means that i call them on every os. on OSes that don't have these, i just return. it's somewhat inelegant, but also means that i see errors more easily, e.g. misnamed variables inside previous ifdef OpenBSD blocks. Signed-off-by: Leah Rowe <leah@libreboot.org>
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/* SPDX-License-Identifier: MIT
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* Copyright (c) 2022-2026 Leah Rowe <leah@libreboot.org>
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*
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* This tool lets you modify Intel GbE NVM (Gigabit Ethernet
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* Non-Volatile Memory) images, e.g. change the MAC address.
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* These images configure your Intel Gigabit Ethernet adapter.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "include/common.h"
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int
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main(int argc, char *argv[])
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{
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struct xstate *x;
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struct commands *cmd;
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struct xfile *f;
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size_t c;
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if (lbgetprogname(argv[0]) == NULL)
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err_no_cleanup(0, errno, "could not set progname");
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xpledgex("stdio flock rpath wpath cpath unveil", NULL);
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xunveilx("/dev/urandom", "r");
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#ifndef S_ISREG
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err_no_cleanup(0, ECANCELED,
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"Can't determine file types (S_ISREG undefined)");
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#endif
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#if ((CHAR_BIT) != 8)
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err_no_cleanup(0, ECANCELED, "Unsupported char size");
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#endif
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if ((x = xstart(argc, argv)) == NULL)
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err_no_cleanup(0, ECANCELED, "NULL state on init");
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/* parse user command */
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/* TODO: CHECK ACCESSES VIA xstatus() */
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set_cmd(argc, argv);
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set_cmd_args(argc, argv);
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cmd = &x->cmd[x->i];
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f = &x->f;
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if ((cmd->flags & O_ACCMODE) == O_RDONLY)
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xunveilx(f->fname, "r");
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else
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xunveilx(f->fname, "rwc");
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xunveilx(f->tname, "rwc");
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xunveilx(NULL, NULL);
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xpledgex("stdio flock rpath wpath cpath", NULL);
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if (cmd->run == NULL)
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b0rk(errno, "Command not set");
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sanitize_command_list();
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open_gbe_file();
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copy_gbe();
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read_checksums();
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cmd->run();
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for (c = 0; c < items(x->cmd); c++)
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x->cmd[c].run = cmd_helper_err;
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if ((cmd->flags & O_ACCMODE) == O_RDWR)
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write_to_gbe_bin();
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if (exit_cleanup() == -1)
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b0rk(EIO, "%s: close", f->fname);
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if (f->io_err_gbe_bin)
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b0rk(EIO, "%s: error writing final file");
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free_and_set_null(&f->tname);
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return EXIT_SUCCESS;
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}
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