FreeCalypso > hg > freecalypso-reveng
changeset 268:e493fcff28ab
cinitdump program written, compiles
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 19 Jan 2018 06:19:59 +0000 |
parents | ace3136d0601 |
children | d0bb4b083595 |
files | .hgignore miscprog/Makefile miscprog/cinitdump.c |
diffstat | 3 files changed, 60 insertions(+), 2 deletions(-) [+] |
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--- a/.hgignore Fri Jan 19 05:15:50 2018 +0000 +++ b/.hgignore Fri Jan 19 06:19:59 2018 +0000 @@ -28,6 +28,7 @@ ^miscprog/atsc$ ^miscprog/calextract$ +^miscprog/cinitdump$ ^miscprog/factdiff$ ^miscprog/ftmdump$ ^miscprog/grokdsn$
--- a/miscprog/Makefile Fri Jan 19 05:15:50 2018 +0000 +++ b/miscprog/Makefile Fri Jan 19 06:19:59 2018 +0000 @@ -1,7 +1,8 @@ CC= gcc CFLAGS= -O2 -STD= atsc calextract factdiff ftmdump grokdsn memwrite-grep mokosrec2bin \ - osmo2psi pirbattextr pircalextr pircksum pircksum2 rfcap-grep +STD= atsc calextract cinitdump factdiff ftmdump grokdsn memwrite-grep \ + mokosrec2bin osmo2psi pirbattextr pircalextr pircksum pircksum2 \ + rfcap-grep CRYPTO= imeibrute pirimei PROGS= ${STD} ${CRYPTO} @@ -15,6 +16,7 @@ atsc: atsc.c calextract: calextract.c +cinitdump: cinitdump.c factdiff: factdiff.c ftmdump: ftmdump.c grokdsn: grokdsn.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/miscprog/cinitdump.c Fri Jan 19 06:19:59 2018 +0000 @@ -0,0 +1,55 @@ +/* + * This program dumps the cinit section records from a firmware image + * sans symbols, given just the cinit start address and knowing the + * record structure. + */ + +#include <sys/types.h> +#include <stdio.h> +#include <stdlib.h> + +FILE *inf; +u_long offset; + +u_long +get_word() +{ + u_char bytes[4]; + u_long word; + + fread(bytes, 1, 4, inf); + word = bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24); + printf("%8lx:\t%08lx\n", offset, word); + offset += 4; + return word; +} + +main(argc, argv) + char **argv; +{ + u_long len, count; + + if (argc != 3) { + fprintf(stderr, "usage: %s filename start-addr\n", argv[0]); + exit(1); + } + inf = fopen(argv[1], "r"); + if (!inf) { + perror(argv[1]); + exit(1); + } + offset = strtoul(argv[2], 0, 0); + fseek(inf, offset, SEEK_SET); + + for (;;) { + len = get_word(); + if (!len) + break; + len = (len + 3) & ~3; + get_word(); /* bss address */ + for (count = 0; count < len; count += 4) + get_word(); + putchar('\n'); + } + exit(0); +}