diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/Makefile | 12 | ||||
| -rw-r--r-- | tools/inca-swap-bytes.c | 38 |
2 files changed, 50 insertions, 0 deletions
diff --git a/tools/Makefile b/tools/Makefile index 41bcc59..35c60b6 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -25,6 +25,11 @@ BINS = img2srec$(SFX) mkimage$(SFX) envcrc$(SFX) gen_eth_addr$(SFX) bmp_logo$(SF OBJS = environment.o img2srec.o mkimage.o crc32.o envcrc.o gen_eth_addr.o bmp_logo.o +ifeq ($(ARCH),mips) +BINS += inca-swap-bytes$(SFX) +OBJS += inca-swap-bytes.o +endif + LOGO_H = $(TOPDIR)/include/bmp_logo.h ifeq ($(LOGO_BMP),) @@ -133,6 +138,10 @@ bmp_logo$(SFX): bmp_logo.o $(CC) $(CFLAGS) $(HOST_LDFLAGS) -o $@ $^ $(STRIP) $@ +inca-swap-bytes$(SFX): inca-swap-bytes.o + $(CC) $(CFLAGS) $(HOST_LDFLAGS) -o $@ $^ + $(STRIP) $@ + envcrc.o: envcrc.c $(CC) -g $(CFLAGS) -c $< @@ -145,6 +154,9 @@ mkimage.o: mkimage.c gen_eth_addr.o: gen_eth_addr.c $(CC) -g $(CFLAGS) -c $< +inca-swap-bytes.o: inca-swap-bytes.c + $(CC) -g $(CFLAGS) -c $< + subdirs: @for dir in $(TOOLSUBDIRS) ; do \ $(MAKE) \ diff --git a/tools/inca-swap-bytes.c b/tools/inca-swap-bytes.c new file mode 100644 index 0000000..3a6d82d --- /dev/null +++ b/tools/inca-swap-bytes.c @@ -0,0 +1,38 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#ifndef BUFSIZ +# define BUFSIZ 4096 +#endif + +#undef BUFSIZ +# define BUFSIZ 64 +int main (void) +{ + short ibuff[BUFSIZ], obuff[BUFSIZ]; + int rc, i, len; + + while ((rc = read (0, ibuff, sizeof (ibuff))) > 0) { + memset (obuff, 0, sizeof (obuff)); + for (i = 0; i < (rc + 1) / 2; i++) { + obuff[i] = ibuff[i ^ 1]; + } + + len = (rc + 1) & ~1; + + if (write (1, obuff, len) != len) { + perror ("read error"); + return (EXIT_FAILURE); + } + + memset (ibuff, 0, sizeof (ibuff)); + } + + if (rc < 0) { + perror ("read error"); + return (EXIT_FAILURE); + } + return (EXIT_SUCCESS); +} |