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Diffstat (limited to 'src/libbasic/fileio.h')
-rw-r--r-- | src/libbasic/fileio.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/libbasic/fileio.h b/src/libbasic/fileio.h new file mode 100644 index 0000000000..8084895ff3 --- /dev/null +++ b/src/libbasic/fileio.h @@ -0,0 +1,84 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <dirent.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <sys/types.h> + +#include "macro.h" +#include "time-util.h" + +typedef enum { + WRITE_STRING_FILE_CREATE = 1, + WRITE_STRING_FILE_ATOMIC = 2, + WRITE_STRING_FILE_AVOID_NEWLINE = 4, + WRITE_STRING_FILE_VERIFY_ON_FAILURE = 8, +} WriteStringFileFlags; + +int write_string_stream(FILE *f, const char *line, bool enforce_newline); +int write_string_file(const char *fn, const char *line, WriteStringFileFlags flags); + +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 parse_env_file(const char *fname, const char *separator, ...) _sentinel_; +int load_env_file(FILE *f, const char *fname, const char *separator, char ***l); +int load_env_file_pairs(FILE *f, const char *fname, const char *separator, char ***l); + +int write_env_file(const char *fname, char **l); + +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); + +#define FOREACH_LINE(line, f, on_error) \ + for (;;) \ + if (!fgets(line, sizeof(line), f)) { \ + if (ferror(f)) { \ + on_error; \ + } \ + break; \ + } else + +int fflush_and_check(FILE *f); + +int fopen_temporary(const char *path, FILE **_f, char **_temp_path); +int mkostemp_safe(char *pattern, int flags); +int open_tmpfile(const char *path, int flags); + +int tempfn_xxxxxx(const char *p, const char *extra, char **ret); +int tempfn_random(const char *p, const char *extra, char **ret); +int tempfn_random_child(const char *p, const char *extra, char **ret); + +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); |