From 19f4f86bfed21c5326ed2acebe1163f3a83e832b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 04:25:50 +0200 Subject: Adding upstream version 241. Signed-off-by: Daniel Baumann --- src/basic/fileio.h | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/basic/fileio.h (limited to 'src/basic/fileio.h') diff --git a/src/basic/fileio.h b/src/basic/fileio.h new file mode 100644 index 0000000..53e3f4e --- /dev/null +++ b/src/basic/fileio.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#pragma once + +#include +#include +#include +#include +#include + +#include "macro.h" +#include "time-util.h" + +#define LONG_LINE_MAX (1U*1024U*1024U) + +typedef enum { + WRITE_STRING_FILE_CREATE = 1 << 0, + WRITE_STRING_FILE_ATOMIC = 1 << 1, + WRITE_STRING_FILE_AVOID_NEWLINE = 1 << 2, + WRITE_STRING_FILE_VERIFY_ON_FAILURE = 1 << 3, + WRITE_STRING_FILE_SYNC = 1 << 4, + WRITE_STRING_FILE_DISABLE_BUFFER = 1 << 5, + WRITE_STRING_FILE_NOFOLLOW = 1 << 6, + + /* And before you wonder, why write_string_file_atomic_label_ts() is a separate function instead of just one + more flag here: it's about linking: we don't want to pull -lselinux into all users of write_string_file() + and friends. */ + +} WriteStringFileFlags; + +int write_string_stream_ts(FILE *f, const char *line, WriteStringFileFlags flags, struct timespec *ts); +static inline int write_string_stream(FILE *f, const char *line, WriteStringFileFlags flags) { + return write_string_stream_ts(f, line, flags, NULL); +} +int write_string_file_ts(const char *fn, const char *line, WriteStringFileFlags flags, struct timespec *ts); +static inline int write_string_file(const char *fn, const char *line, WriteStringFileFlags flags) { + return write_string_file_ts(fn, line, flags, NULL); +} + +int write_string_filef(const char *fn, WriteStringFileFlags flags, const char *format, ...) _printf_(3, 4); + +int read_one_line_file(const char *fn, char **line); +int read_full_file(const char *fn, char **contents, size_t *size); +int read_full_stream(FILE *f, char **contents, size_t *size); + +int verify_file(const char *fn, const char *blob, bool accept_extra_nl); + +int executable_is_script(const char *path, char **interpreter); + +int get_proc_field(const char *filename, const char *pattern, const char *terminator, char **field); + +DIR *xopendirat(int dirfd, const char *name, int flags); + +int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f); +int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f); + +int fflush_and_check(FILE *f); +int fflush_sync_and_check(FILE *f); + +int write_timestamp_file_atomic(const char *fn, usec_t n); +int read_timestamp_file(const char *fn, usec_t *ret); + +int fputs_with_space(FILE *f, const char *s, const char *separator, bool *space); + +typedef enum ReadLineFlags { + READ_LINE_ONLY_NUL = 1 << 0, +} ReadLineFlags; + +int read_line_full(FILE *f, size_t limit, ReadLineFlags flags, char **ret); + +static inline int read_line(FILE *f, size_t limit, char **ret) { + return read_line_full(f, limit, 0, ret); +} + +static inline int read_nul_string(FILE *f, size_t limit, char **ret) { + return read_line_full(f, limit, READ_LINE_ONLY_NUL, ret); +} + +int safe_fgetc(FILE *f, char *ret); -- cgit v1.2.3