execute: support minimal environment variable replacement when executing processes

1 files changed, 4 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index ff79583d80..b29f890b5f 100644
--- a/src/util.h
+++ b/src/util.h
@@ -183,6 +183,10 @@ int write_one_line_file(const char *fn, const char *line);
 int read_one_line_file(const char *fn, char **line);
 
 char *strappend(const char *s, const char *suffix);
+char *strnappend(const char *s, const char *suffix, size_t length);
+
+char *replace_env(const char *format, char **env);
+char **replace_env_argv(char **argv, char **env);
 
 int readlink_malloc(const char *p, char **r);
 int readlink_and_make_absolute(const char *p, char **r);