diff options
Diffstat (limited to 'winsup/cygwin/environ.cc')
| -rw-r--r-- | winsup/cygwin/environ.cc | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/winsup/cygwin/environ.cc b/winsup/cygwin/environ.cc index 99f61e7d6..edefb8c40 100644 --- a/winsup/cygwin/environ.cc +++ b/winsup/cygwin/environ.cc @@ -224,6 +224,41 @@ my_findenv (const char *name, int *offset) } /* + * getearly -- + * Primitive getenv before the environment is built. + */ + +static char * __stdcall +getearly (const char * name, int *offset __attribute__ ((unused))) +{ + int s = strlen (name); + char * rawenv; + char ** ptr; + child_info *get_cygwin_startup_info (); + child_info_spawn *ci = (child_info_spawn *) get_cygwin_startup_info (); + + if (ci && (ptr = ci->moreinfo->envp)) + { + for (; *ptr; ptr++) + if (strncasematch (name, *ptr, s) + && (*(*ptr + s) == '=')) + return *ptr + s + 1; + } + else if ((rawenv = GetEnvironmentStrings ())) + { + while (*rawenv) + if (strncasematch (name, rawenv, s) + && (*(rawenv + s) == '=')) + return rawenv + s + 1; + else + rawenv = strchr (rawenv, 0) + 1; + } + return NULL; +} + +static char * (*findenv_func)(const char *, int *) = (char * (*)(const char *, int *)) getearly; + +/* * getenv -- * Returns ptr to value associated with name, if any, else NULL. */ @@ -232,8 +267,7 @@ extern "C" char * getenv (const char *name) { int offset; - - return my_findenv (name, &offset); + return findenv_func (name, &offset); } static int __stdcall @@ -808,6 +842,7 @@ environ_init (char **envp, int envc) FreeEnvironmentStrings (rawenv); out: + findenv_func = (char * (*)(const char*, int*)) my_findenv; __cygwin_environ = envp; update_envptrs (); if (envp_passed_in) |