diff options
| -rw-r--r-- | src/basic/fileio.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/basic/fileio.c b/src/basic/fileio.c index 5e7b63dbf..c79a70466 100644 --- a/src/basic/fileio.c +++ b/src/basic/fileio.c @@ -762,6 +762,39 @@ int load_env_file_pairs(FILE *f, const char *fname, const char *newline, char ** return 0; } +static int merge_env_file_push( + const char *filename, unsigned line, + const char *key, char *value, + void *userdata, + int *n_pushed) { + + char ***env = userdata; + char *expanded_value; + + assert(env); + + expanded_value = replace_env(value, *env, + REPLACE_ENV_USE_ENVIRONMENT|REPLACE_ENV_ALLOW_BRACELESS); + if (!expanded_value) + return -ENOMEM; + + free_and_replace(value, expanded_value); + + return load_env_file_push(filename, line, key, value, env, n_pushed); +} + +int merge_env_file( + char ***env, + FILE *f, + const char *fname) { + + /* NOTE: this function supports braceful and braceless variable expansions, + * unlike other exported parsing functions. + */ + + return parse_env_file_internal(f, fname, NEWLINE, merge_env_file_push, env, NULL); +} + static void write_env_var(FILE *f, const char *v) { const char *p; @@ -1341,6 +1374,25 @@ int open_tmpfile_linkable(const char *target, int flags, char **ret_path) { return fd; } +int open_serialization_fd(const char *ident) { + int fd = -1; + + fd = memfd_create(ident, MFD_CLOEXEC); + if (fd < 0) { + const char *path; + + path = getpid() == 1 ? "/run/systemd" : "/tmp"; + fd = open_tmpfile_unlinkable(path, O_RDWR|O_CLOEXEC); + if (fd < 0) + return fd; + + log_debug("Serializing %s to %s.", ident, path); + } else + log_debug("Serializing %s to memfd.", ident); + + return fd; +} + int link_tmpfile(int fd, const char *path, const char *target) { assert(fd >= 0); |