diff options
Diffstat (limited to 'src/libstddjb/openreadnclose.c')
-rw-r--r-- | src/libstddjb/openreadnclose.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/libstddjb/openreadnclose.c b/src/libstddjb/openreadnclose.c new file mode 100644 index 0000000..b0cf5d0 --- /dev/null +++ b/src/libstddjb/openreadnclose.c @@ -0,0 +1,21 @@ +/* ISC license. */ + +#include <errno.h> +#include <skalibs/allreadwrite.h> +#include <skalibs/djbunix.h> + +int openreadnclose (char const *file, char *s, unsigned int n) +{ + register int r ; + int fd = open_readb(file) ; + if (fd == -1) return -1 ; + r = allread(fd, s, n) ; + if (r == -1) + { + fd_close(fd) ; + return -1 ; + } + fd_close(fd) ; + if ((r > 0) && (r < (int)n)) errno = EPIPE ; + return r ; +} |