Add open_memstream_unlocked() wrapper

[thirdparty/systemd.git] / src / basic / fileio.h

diff --git a/src/basic/fileio.h b/src/basic/fileio.h
index 8ca717f309891c9e0da661df7e826428ee29ea8b..fe5c8277de62bdadce9c5cf5af2132562df84df7 100644 (file)
--- a/src/basic/fileio.h
+++ b/src/basic/fileio.h
@@ -5,6 +5,7 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdio.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 
 #include "macro.h"
@@ -27,6 +28,15 @@ typedef enum {
 
 } WriteStringFileFlags;
 
+typedef enum {
+        READ_FULL_FILE_SECURE   = 1 << 0,
+        READ_FULL_FILE_UNBASE64 = 1 << 1,
+} ReadFullFileFlags;
+
+int fopen_unlocked(const char *path, const char *options, FILE **ret);
+int fdopen_unlocked(int fd, const char *options, FILE **ret);
+FILE* open_memstream_unlocked(char **ptr, size_t *sizeloc);
+
 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);
@@ -38,22 +48,18 @@ static inline int write_string_file(const char *fn, const char *line, WriteStrin
 
 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 read_one_line_file(const char *filename, char **line);
+int read_full_file_full(const char *filename, ReadFullFileFlags flags, char **contents, size_t *size);
+static inline int read_full_file(const char *filename, char **contents, size_t *size) {
+        return read_full_file_full(filename, 0, contents, size);
+}
+int read_full_stream_full(FILE *f, const char *filename, ReadFullFileFlags flags, char **contents, size_t *size);
+static inline int read_full_stream(FILE *f, char **contents, size_t *size) {
+        return read_full_stream_full(f, NULL, 0, contents, size);
+}
 
 int verify_file(const char *fn, const char *blob, bool accept_extra_nl);
 
-int parse_env_filev(FILE *f, const char *fname, va_list ap);
-int parse_env_file_sentinel(FILE *f, const char *fname, ...) _sentinel_;
-#define parse_env_file(f, fname, ...) parse_env_file_sentinel(f, fname, __VA_ARGS__, NULL)
-int load_env_file(FILE *f, const char *fname, char ***l);
-int load_env_file_pairs(FILE *f, const char *fname, char ***l);
-
-int merge_env_file(char ***env, FILE *f, const char *fname);
-
-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);
@@ -71,8 +77,20 @@ int read_timestamp_file(const char *fn, usec_t *ret);
 
 int fputs_with_space(FILE *f, const char *s, const char *separator, bool *space);
 
-int open_serialization_fd(const char *ident);
+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 read_nul_string(FILE *f, char **ret);
+int safe_fgetc(FILE *f, char *ret);
 
-int read_line(FILE *f, size_t limit, char **ret);
+int warn_file_is_world_accessible(const char *filename, struct stat *st, const char *unit, unsigned line);