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Diffstat (limited to 'usr.sbin/asf/asf_prog.c')
-rw-r--r-- | usr.sbin/asf/asf_prog.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/usr.sbin/asf/asf_prog.c b/usr.sbin/asf/asf_prog.c new file mode 100644 index 0000000..9a13cd6 --- /dev/null +++ b/usr.sbin/asf/asf_prog.c @@ -0,0 +1,73 @@ +/*- + * Copyright (c) 2002, 2003 Greg Lehey + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * This software is provided by the author ``as is'' and any express + * or implied warranties, including, but not limited to, the implied + * warranties of merchantability and fitness for a particular purpose + * are disclaimed. In no event shall the author be liable for any + * direct, indirect, incidental, special, exemplary, or consequential + * damages (including, but not limited to, procurement of substitute + * goods or services; loss of use, data, or profits; or business + * interruption) however caused and on any theory of liability, + * whether in contract, strict liability, or tort (including + * negligence or otherwise) arising in any way out of the use of this + * software, even if advised of the possibility of such damage. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <err.h> +#include <inttypes.h> +#include <limits.h> +#include <stdio.h> +#include <string.h> + +#include "asf.h" + +/* + * Get the linker file list from kldstat(8) output. + * The "run" flag tells if kldstat(8) should run now. + * Of course, kldstat(1) can run in a live system only, but its output + * can be saved beforehand and fed to this function later via stdin. + */ +void +asf_prog(int run) +{ + char buf[LINE_MAX]; + char *token[MAXTOKEN]; + char *endp; + FILE *kldstat; + caddr_t base; + int tokens; + + if (run) { + if ((kldstat = popen("kldstat", "r")) == NULL) + err(2, "can't start kldstat"); + } else + kldstat = stdin; + + while (fgets(buf, sizeof(buf), kldstat)) { + /* Skip header line and main kernel file */ + if (buf[0] == 'I' || strstr(buf, KERNFILE)) + continue; + tokens = tokenize(buf, token, MAXTOKEN); + if (tokens < 4) + continue; + base = (caddr_t)(uintptr_t)strtoumax(token[2], &endp, 16); + if (endp == NULL || *endp != '\0') + continue; + kfile_add(token[4], base); + } +} |