On 21/12/17 23:59, Michael Heimpold wrote:
At the moment, the image file operated on is always truncated to 512 bytes. This limits the usage of ptgen somewhat.
O_TRUNC truncates to 0 and not 512 ?! John
This change allows to use ptgen on existing, larger image files. In this case, only the partition table is written/updated while the rest of the image file is left alone. Signed-off-by: Michael Heimpold <m...@heimpold.de> --- tools/firmware-utils/src/ptgen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/firmware-utils/src/ptgen.c b/tools/firmware-utils/src/ptgen.c index 93d66eb..ff97cd5 100644 --- a/tools/firmware-utils/src/ptgen.c +++ b/tools/firmware-utils/src/ptgen.c @@ -166,7 +166,7 @@ static int gen_ptable(uint32_t signature, int nr) printf("%ld\n", (long)len * 512); }- if ((fd = open(filename, O_WRONLY|O_CREAT|O_TRUNC, 0644)) < 0) {+ if ((fd = open(filename, O_WRONLY|O_CREAT, 0644)) < 0) { fprintf(stderr, "Can't open output file '%s'\n",filename); return -1; }
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