1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 Copyright 2010 Lennart Poettering
12 #include <sys/types.h>
15 #include "time-util.h"
18 WRITE_STRING_FILE_CREATE
= 1 << 0,
19 WRITE_STRING_FILE_ATOMIC
= 1 << 1,
20 WRITE_STRING_FILE_AVOID_NEWLINE
= 1 << 2,
21 WRITE_STRING_FILE_VERIFY_ON_FAILURE
= 1 << 3,
22 WRITE_STRING_FILE_SYNC
= 1 << 4,
23 WRITE_STRING_FILE_DISABLE_BUFFER
= 1 << 5,
25 /* And before you wonder, why write_string_file_atomic_label_ts() is a separate function instead of just one
26 more flag here: it's about linking: we don't want to pull -lselinux into all users of write_string_file()
29 } WriteStringFileFlags
;
31 int write_string_stream_ts(FILE *f
, const char *line
, WriteStringFileFlags flags
, struct timespec
*ts
);
32 static inline int write_string_stream(FILE *f
, const char *line
, WriteStringFileFlags flags
) {
33 return write_string_stream_ts(f
, line
, flags
, NULL
);
35 int write_string_file_ts(const char *fn
, const char *line
, WriteStringFileFlags flags
, struct timespec
*ts
);
36 static inline int write_string_file(const char *fn
, const char *line
, WriteStringFileFlags flags
) {
37 return write_string_file_ts(fn
, line
, flags
, NULL
);
40 int write_string_filef(const char *fn
, WriteStringFileFlags flags
, const char *format
, ...) _printf_(3, 4);
42 int read_one_line_file(const char *fn
, char **line
);
43 int read_full_file(const char *fn
, char **contents
, size_t *size
);
44 int read_full_stream(FILE *f
, char **contents
, size_t *size
);
46 int verify_file(const char *fn
, const char *blob
, bool accept_extra_nl
);
48 int parse_env_filev(FILE *f
, const char *fname
, const char *separator
, va_list ap
);
49 int parse_env_file(FILE *f
, const char *fname
, const char *separator
, ...) _sentinel_
;
50 int load_env_file(FILE *f
, const char *fname
, const char *separator
, char ***l
);
51 int load_env_file_pairs(FILE *f
, const char *fname
, const char *separator
, char ***l
);
53 int merge_env_file(char ***env
, FILE *f
, const char *fname
);
55 int write_env_file(const char *fname
, char **l
);
57 int executable_is_script(const char *path
, char **interpreter
);
59 int get_proc_field(const char *filename
, const char *pattern
, const char *terminator
, char **field
);
61 DIR *xopendirat(int dirfd
, const char *name
, int flags
);
63 int search_and_fopen(const char *path
, const char *mode
, const char *root
, const char **search
, FILE **_f
);
64 int search_and_fopen_nulstr(const char *path
, const char *mode
, const char *root
, const char *search
, FILE **_f
);
66 #define FOREACH_LINE(line, f, on_error) \
68 if (!fgets(line, sizeof(line), f)) { \
75 int fflush_and_check(FILE *f
);
76 int fflush_sync_and_check(FILE *f
);
78 int fopen_temporary(const char *path
, FILE **_f
, char **_temp_path
);
79 int mkostemp_safe(char *pattern
);
81 int tempfn_xxxxxx(const char *p
, const char *extra
, char **ret
);
82 int tempfn_random(const char *p
, const char *extra
, char **ret
);
83 int tempfn_random_child(const char *p
, const char *extra
, char **ret
);
85 int write_timestamp_file_atomic(const char *fn
, usec_t n
);
86 int read_timestamp_file(const char *fn
, usec_t
*ret
);
88 int fputs_with_space(FILE *f
, const char *s
, const char *separator
, bool *space
);
90 int open_tmpfile_unlinkable(const char *directory
, int flags
);
91 int open_tmpfile_linkable(const char *target
, int flags
, char **ret_path
);
92 int open_serialization_fd(const char *ident
);
94 int link_tmpfile(int fd
, const char *path
, const char *target
);
96 int read_nul_string(FILE *f
, char **ret
);
98 int mkdtemp_malloc(const char *template, char **ret
);
100 int read_line(FILE *f
, size_t limit
, char **ret
);