torrentd

simple torrent daemon
git clone git@git.2f30.org/torrentd.git
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commit 8375c04910e59654bc4fee4fbe8a820e1d3f839d
parent 31267a8f4d0871b341811b124d2f427c3fd96a48
Author: sin <sin@2f30.org>
Date:   Thu, 17 Dec 2015 11:54:08 +0000

Add readfile()

Diffstat:
Msbtd.h | 1+
Mutil.c | 26++++++++++++++++++++++++++
2 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/sbtd.h b/sbtd.h @@ -43,3 +43,4 @@ uint8_t hex2int(int); uint8_t *hex2bin(const char *, uint8_t *, size_t); char *bin2hex(const uint8_t *, char *, size_t); void sha1sum(uint8_t *, unsigned long, uint8_t *); +int readfile(char *, char **, size_t *); diff --git a/util.c b/util.c @@ -14,10 +14,15 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include <sys/types.h> +#include <sys/stat.h> + #include <ctype.h> #include <err.h> +#include <fcntl.h> #include <stdint.h> #include <stdlib.h> +#include <unistd.h> #include "sbtd.h" #include "sha1.h" @@ -96,3 +101,24 @@ sha1sum(uint8_t *b, unsigned long n, uint8_t *md) sha1_update(&ctx, b, n); sha1_sum(&ctx, md); } + +int +readfile(char *file, char **b, size_t *n) +{ + struct stat sb; + int fd; + + if ((fd = open(file, O_RDONLY)) < 0) + return -1; + if (fstat(fd, &sb) < 0) { + close(fd); + return -1; + } + *b = emalloc(*n = sb.st_size); + if (read(fd, *b, *n) != (ssize_t)*n) { + close(fd); + return -1; + } + close(fd); + return 0; +}