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newlib-cygwin
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* environ.cc (rawenv): Make this variable a file-scope static. 

(getearly): Rename 's' variable to 'len' since 's' is used fairly consistently
throughout cygwin as a string variable.  Remove rawenv declaration.  Perform
other minor cleanups.
(environ_init): Remove rawenv declaration.  Only set rawenv to
GetEnvironmentStrings() if it has not already been set.  Properly free rawenv
in all cases.
This commit is contained in:
Christopher Faylor 2006-04-21 19:19:31 +00:00
parent f09acf77de
commit 16dc3c95fb
2 changed files with 43 additions and 38 deletions
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10
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,13 @@
2006-04-21 Christopher Faylor <cgf@timesys.com>
* environ.cc (rawenv): Make this variable a file-scope static.
(getearly): Rename 's' variable to 'len' since 's' is used fairly
consistently throughout cygwin as a string variable. Remove rawenv
declaration. Perform other minor cleanups.
(environ_init): Remove rawenv declaration. Only set rawenv to
GetEnvironmentStrings() if it has not already been set. Properly free
rawenv in all cases.
2006-04-21 Christopher Faylor <cgf@timesys.com>
* tty.h (tty::hwnd): Move to tty_min.

63
winsup/cygwin/environ.cc
View File

@ -223,45 +223,32 @@ my_findenv (const char *name, int *offset)
return NULL;
}
/*
* getearly --
* Primitive getenv before the environment is built.
*/
static NO_COPY char *rawenv;
static char * __stdcall
/* 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 ();
char *p;
char **ptr;
int len = strlen (name);
if (ci && (ptr = ci->moreinfo->envp))
{
if (spawn_info && (ptr = spawn_info->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;
}
if (strncasematch (name, *ptr, len) && *ptr[len] == '=')
return *ptr + len + 1;
else if (rawenv || (rawenv = GetEnvironmentStrings ()))
for (p = rawenv; *p; p = strchr (p, '\0') + 1)
if (strncasematch (name, p, len) && p[len] == '=')
return p + len + 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.
*/
/* Returns ptr to value associated with name, if any, else NULL. */
extern "C" char *
getenv (const char *name)
@ -362,7 +349,7 @@ _addenv (const char *name, const char *value, int overwrite)
return 0;
}
/* putenv Sets an environment variable */
/* Set an environment variable */
extern "C" int
putenv (char *str)
{
@ -381,7 +368,7 @@ putenv (char *str)
return 0;
}
/* setenv -- Set the value of the environment variable "name" to be
/* Set the value of the environment variable "name" to be
"value". If overwrite is set, replace any current value. */
extern "C" int
setenv (const char *name, const char *value, int overwrite)
@ -396,7 +383,7 @@ setenv (const char *name, const char *value, int overwrite)
return _addenv (name, value, !!overwrite);
}
/* unsetenv(name) -- Delete environment variable "name". */
/* Delete environment variable "name". */
extern "C" int
unsetenv (const char *name)
{
@ -749,7 +736,6 @@ regopt (const char *name)
void
environ_init (char **envp, int envc)
{
char *rawenv;
int i;
char *p;
char *newp;
@ -798,19 +784,27 @@ environ_init (char **envp, int envc)
cfree (p);
}
envp_passed_in = 1;
if (rawenv)
{
FreeEnvironmentStrings (rawenv);
rawenv = NULL;
}
goto out;
}
/* Allocate space for environment + trailing NULL + CYGWIN env. */
lastenviron = envp = (char **) malloc ((4 + (envc = 100)) * sizeof (char *));
if (!rawenv)
{
rawenv = GetEnvironmentStrings ();
if (!rawenv)
{
system_printf ("GetEnvironmentStrings returned NULL, %E");
return;
}
debug_printf ("GetEnvironmentStrings returned %p - \"%s\"", rawenv, rawenv);
}
debug_printf ("rawenv %p - \"%s\"", rawenv, rawenv);
/* Current directory information is recorded as variables of the
form "=X:=X:\foo\bar; these must be changed into something legal
@ -840,6 +834,7 @@ environ_init (char **envp, int envc)
envp[i++] = strdup (cygterm);
envp[i] = NULL;
FreeEnvironmentStrings (rawenv);
rawenv = NULL;
out:
findenv_func = (char * (*)(const char*, int*)) my_findenv;