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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:00:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:00:47 +0000 |
commit | 2cb7e0aaedad73b076ea18c6900b0e86c5760d79 (patch) | |
tree | da68ca54bb79f4080079bf0828acda937593a4e1 /src/basic/env-util.h | |
parent | Initial commit. (diff) | |
download | systemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.tar.xz systemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.zip |
Adding upstream version 247.3.upstream/247.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/basic/env-util.h')
-rw-r--r-- | src/basic/env-util.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/basic/env-util.h b/src/basic/env-util.h new file mode 100644 index 0000000..6684b33 --- /dev/null +++ b/src/basic/env-util.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <unistd.h> + +#include "macro.h" +#include "string.h" + +static inline size_t sc_arg_max(void) { + long l = sysconf(_SC_ARG_MAX); + assert(l > 0); + return (size_t) l; +} + +bool env_name_is_valid(const char *e); +bool env_value_is_valid(const char *e); +bool env_assignment_is_valid(const char *e); + +enum { + REPLACE_ENV_USE_ENVIRONMENT = 1 << 0, + REPLACE_ENV_ALLOW_BRACELESS = 1 << 1, + REPLACE_ENV_ALLOW_EXTENDED = 1 << 2, +}; + +char *replace_env_n(const char *format, size_t n, char **env, unsigned flags); +char **replace_env_argv(char **argv, char **env); + +static inline char *replace_env(const char *format, char **env, unsigned flags) { + return replace_env_n(format, strlen(format), env, flags); +} + +bool strv_env_is_valid(char **e); +#define strv_env_clean(l) strv_env_clean_with_callback(l, NULL, NULL) +char **strv_env_clean_with_callback(char **l, void (*invalid_callback)(const char *p, void *userdata), void *userdata); + +bool strv_env_name_is_valid(char **l); +bool strv_env_name_or_assignment_is_valid(char **l); + +char **strv_env_merge(size_t n_lists, ...); +char **strv_env_delete(char **x, size_t n_lists, ...); /* New copy */ + +char **strv_env_set(char **x, const char *p); /* New copy ... */ +char **strv_env_unset(char **l, const char *p); /* In place ... */ +char **strv_env_unset_many(char **l, ...) _sentinel_; +int strv_env_replace(char ***l, char *p); /* In place ... */ + +char *strv_env_get_n(char **l, const char *name, size_t k, unsigned flags) _pure_; +char *strv_env_get(char **x, const char *n) _pure_; + +int getenv_bool(const char *p); +int getenv_bool_secure(const char *p); + +/* Like setenv, but calls unsetenv if value == NULL. */ +int set_unset_env(const char *name, const char *value, bool overwrite); |