Mercurial > archived > louis > perso > liblxcstats
diff tests/read_file.c @ 0:6ce4443e7545
Add the draft of an API to collect statistics on LXC
author | Louis Opter <kalessin@kalessin.fr> |
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date | Wed, 29 Dec 2010 23:28:14 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/read_file.c Wed Dec 29 23:28:14 2010 +0100 @@ -0,0 +1,42 @@ +#include <sys/types.h> + +#include <err.h> +#include <fcntl.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "lxcstats.h" +#include "_lxcstats.h" + +int +main(void) +{ + char reference[1024]; + int rdsize; + char *trial; + size_t size; + int fd; + + fd = open("/etc/hostname", O_RDONLY); + if (fd == -1) + err(EXIT_FAILURE, "can't open /etc/hostname"); + + size = _lxcst_read_file("/etc/hostname", &trial); + if (!trial) + err(EXIT_FAILURE, "can't read /etc/hostname"); + + rdsize = read(fd, reference, sizeof(reference)); + if (rdsize == -1) + err(EXIT_FAILURE, "can't read /etc/hostname"); + + if ((size_t)rdsize != size) + errx(EXIT_FAILURE, "sizes are different"); + + if (memcmp(reference, trial, size)) + errx(EXIT_FAILURE, "buffers are different"); + + free(trial); + + return (EXIT_SUCCESS); +}