diff options
Diffstat (limited to 'serialise.c')
| -rw-r--r-- | serialise.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/serialise.c b/serialise.c index f162eeb..944e741 100644 --- a/serialise.c +++ b/serialise.c @@ -13,7 +13,9 @@ */ #include <assert.h> +#include <endian.h> #include <errno.h> +#include <stdint.h> #include <unistd.h> #include "serialise.h" @@ -86,3 +88,36 @@ int write_all_buf(int fd, const void *buf, size_t len) } return 0; } + +/** + * read_uXXX() - Receive a uXXX value from an fd + * @fd: File descriptor to read from + * @valp: Pointer to variable to update with read value + * + * Return: 0 on success, -1 on error + */ +/** + * write_uXXX() - Send a uXXX value to an fd + * @fd: File descriptor to write to + * @val: Value to send + * + * Return: 0 on success, -1 on error + */ +#define SERIALISE_UINT(bits) \ + int read_u##bits(int fd, uint##bits##_t *val) \ + { \ + uint##bits##_t beval; \ + if (read_all_buf(fd, &beval, sizeof(beval)) < 0) \ + return -1; \ + *val = be##bits##toh(beval); \ + return 0; \ + } \ + int write_u##bits(int fd, uint##bits##_t val) \ + { \ + uint##bits##_t beval = htobe##bits(val); \ + return write_all_buf(fd, &beval, sizeof(beval)); \ + } + +SERIALISE_UINT(32) + +#undef SERIALISE_UINT |