Systemd/src/basic/fileio.h
Aaro Koskinen c4cd1d4d93 fileio: make get_status_field() more generic
All users of get_status_field() expect the field pattern to occur in
the beginning of a line, and the delimiter is ':'.

Hardcode this into the function, and also skip any whitespace before ':'
to support fields in files like /proc/cpuinfo. Add support for returning
the full field value (currently stops on first whitespace).

Rename the function so it's easier to ensure all callers switch to new
semantics.
2015-09-30 15:57:55 +03:00

52 lines
1.8 KiB
C

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#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 <stddef.h>
#include <stdio.h>
#include "macro.h"
typedef enum {
WRITE_STRING_FILE_CREATE = 1,
WRITE_STRING_FILE_ATOMIC = 2,
WRITE_STRING_FILE_AVOID_NEWLINE = 4,
} 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_one_line_file(const char *fn, const char *line);
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);