Signed-off-by: Michael Heimpold <m...@heimpold.de>
---
tools/firmware-utils/src/ptgen.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/tools/firmware-utils/src/ptgen.c b/tools/firmware-utils/src/ptgen.c
index af14d73..3e1b8ba 100644
--- a/tools/firmware-utils/src/ptgen.c
+++ b/tools/firmware-utils/src/ptgen.c
@@ -30,6 +30,7 @@
#include <ctype.h>
#include <fcntl.h>
#include <stdint.h>
+#include <errno.h>
#if __BYTE_ORDER == __BIG_ENDIAN
#define cpu_to_le32(x) bswap_32(x)
@@ -168,24 +169,24 @@ static int gen_ptable(uint32_t signature, int nr)
}
if ((fd = open(filename, O_WRONLY|O_CREAT, 0644)) < 0) {
- fprintf(stderr, "Can't open output file '%s'\n",filename);
+ fprintf(stderr, "Can't open output file '%s': %s\n", filename,
strerror(errno));
return -1;
}
lseek(fd, 440, SEEK_SET);
if (write(fd, &signature, sizeof(signature)) != sizeof(signature)) {
- fprintf(stderr, "write failed.\n");
+ perror("Writing disk signature failed");
goto fail;
}
lseek(fd, 446, SEEK_SET);
if (write(fd, pte, sizeof(struct pte) * 4) != sizeof(struct pte) * 4) {
- fprintf(stderr, "write failed.\n");
+ perror("Writing partition table failed");
goto fail;
}
lseek(fd, 510, SEEK_SET);
if (write(fd, "\x55\xaa", 2) != 2) {
- fprintf(stderr, "write failed.\n");
+ perror("Writing signature failed");
goto fail;
}
--
2.7.4
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