diff options
Diffstat (limited to 'debian/vendor-h2o/lib/common/file.c')
-rw-r--r-- | debian/vendor-h2o/lib/common/file.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/debian/vendor-h2o/lib/common/file.c b/debian/vendor-h2o/lib/common/file.c new file mode 100644 index 0000000..3cf5ac5 --- /dev/null +++ b/debian/vendor-h2o/lib/common/file.c @@ -0,0 +1,68 @@ +/* + * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ +#include <errno.h> +#include <fcntl.h> +#include <stdint.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/uio.h> +#include <unistd.h> +#include "h2o/file.h" + +h2o_iovec_t h2o_file_read(const char *fn) +{ + int fd; + struct stat st; + h2o_iovec_t ret = {NULL}; + + /* open */ + if ((fd = open(fn, O_RDONLY | O_CLOEXEC)) == -1) + goto Error; + if (fstat(fd, &st)) + goto Error; + /* allocate memory */ + if (st.st_size > SIZE_MAX) { + errno = ENOMEM; + goto Error; + } + if ((ret.base = malloc((size_t)st.st_size)) == NULL) + goto Error; + /* read */ + while (ret.len != (size_t)st.st_size) { + ssize_t r; + while ((r = read(fd, ret.base + ret.len, (size_t)st.st_size - ret.len)) == -1 && errno == EINTR) + ; + if (r <= 0) + goto Error; + ret.len += r; + } + /* close */ + close(fd); + return ret; + +Error: + if (fd != -1) + close(fd); + free(ret.base); + return (h2o_iovec_t){NULL}; +} |