libs/newlib-cygwin
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Changes suggested by Pierre Humblet.

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* environ.cc (NL): New macro.
(conv_envvars): Use NL macro to fill in name and namelen.
(spenv::namelen): New field.
(spenvs): Use NL to fill in name and namelen.
(spenv::retrieve): Eliminate length argument.  Instead, use namelen throughout.
(build_env): Don't calculate length of initial FOO= part of environment.
Accommodate spenv::retrive argument change.
This commit is contained in:
Christopher Faylor 2002-06-16 05:45:37 +00:00
parent 5f25e1d11a
commit a05a9e0123
2 changed files with 37 additions and 26 deletions
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12
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,15 @@
2002-06-16 Christopher Faylor <cgf@redhat.com>
Changes suggested by Pierre Humblet.
* environ.cc (NL): New macro.
(conv_envvars): Use NL macro to fill in name and namelen.
(spenv::namelen): New field.
(spenvs): Use NL to fill in name and namelen.
(spenv::retrieve): Eliminate length argument. Instead, use namelen
throughout.
(build_env): Don't calculate length of initial FOO= part of
environment. Accommodate spenv::retrive argument change.
2002-06-16 Christopher Faylor <cgf@redhat.com> 2002-06-16 Christopher Faylor <cgf@redhat.com>
* cygheap.h (cygheap_user::winname): New field. * cygheap.h (cygheap_user::winname): New field.

51
winsup/cygwin/environ.cc
View File

@ -44,6 +44,7 @@ static char **lastenviron;
(CYGWIN_VERSION_DLL_MAKE_COMBINED (user_data->api_major, user_data->api_minor) \ (CYGWIN_VERSION_DLL_MAKE_COMBINED (user_data->api_major, user_data->api_minor) \
<= CYGWIN_VERSION_DLL_MALLOC_ENV) <= CYGWIN_VERSION_DLL_MALLOC_ENV)
#define NL(x) x, (sizeof (x) - 1)
/* List of names which are converted from dos to unix /* List of names which are converted from dos to unix
on the way in and back again on the way out. on the way in and back again on the way out.
@ -53,19 +54,19 @@ static char **lastenviron;
static int return_MAX_PATH (const char *) {return MAX_PATH;} static int return_MAX_PATH (const char *) {return MAX_PATH;}
static NO_COPY win_env conv_envvars[] = static NO_COPY win_env conv_envvars[] =
{ {
{"PATH=", 5, NULL, NULL, cygwin_win32_to_posix_path_list, {NL ("PATH="), NULL, NULL, cygwin_win32_to_posix_path_list,
cygwin_posix_to_win32_path_list, cygwin_posix_to_win32_path_list,
cygwin_win32_to_posix_path_list_buf_size, cygwin_win32_to_posix_path_list_buf_size,
cygwin_posix_to_win32_path_list_buf_size}, cygwin_posix_to_win32_path_list_buf_size},
{"HOME=", 5, NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path, {NL ("HOME="), NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path,
return_MAX_PATH, return_MAX_PATH}, return_MAX_PATH, return_MAX_PATH},
{"LD_LIBRARY_PATH=", 16, NULL, NULL, cygwin_conv_to_full_posix_path, {NL ("LD_LIBRARY_PATH="), NULL, NULL, cygwin_conv_to_full_posix_path,
cygwin_conv_to_full_win32_path, return_MAX_PATH, return_MAX_PATH}, cygwin_conv_to_full_win32_path, return_MAX_PATH, return_MAX_PATH},
{"TMPDIR=", 7, NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path, {NL ("TMPDIR="), NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path,
return_MAX_PATH, return_MAX_PATH}, return_MAX_PATH, return_MAX_PATH},
{"TMP=", 4, NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path, {NL ("TMP="), NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path,
return_MAX_PATH, return_MAX_PATH}, return_MAX_PATH, return_MAX_PATH},
{"TEMP=", 5, NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path, {NL ("TEMP="), NULL, NULL, cygwin_conv_to_full_posix_path, cygwin_conv_to_full_win32_path,
return_MAX_PATH, return_MAX_PATH}, return_MAX_PATH, return_MAX_PATH},
{NULL, 0, NULL, NULL, NULL, NULL, 0, 0} {NULL, 0, NULL, NULL, NULL, NULL, 0, 0}
}; };
@ -753,33 +754,34 @@ env_sort (const void *a, const void *b)
struct spenv struct spenv
{ {
const char *name; const char *name;
size_t namelen;
const char * (cygheap_user::*from_cygheap) (); const char * (cygheap_user::*from_cygheap) ();
char *retrieve (bool, const char * const = NULL, int = 0) char *retrieve (bool, const char * const = NULL)
__attribute__ ((regparm (3))); __attribute__ ((regparm (3)));
}; };
/* Keep this list in upper case and sorted */ /* Keep this list in upper case and sorted */
static NO_COPY spenv spenvs[] = static NO_COPY spenv spenvs[] =
{ {
{"HOMEPATH=", &cygheap_user::env_homepath}, {NL ("HOMEPATH="), &cygheap_user::env_homepath},
{"HOMEDRIVE=", &cygheap_user::env_homedrive}, {NL ("HOMEDRIVE="), &cygheap_user::env_homedrive},
{"LOGONSERVER=", &cygheap_user::env_logsrv}, {NL ("LOGONSERVER="), &cygheap_user::env_logsrv},
{"SYSTEMDRIVE=", NULL}, {NL ("SYSTEMDRIVE="), NULL},
{"SYSTEMROOT=", NULL}, {NL ("SYSTEMROOT="), NULL},
{"USERDOMAIN=", &cygheap_user::env_domain}, {NL ("USERDOMAIN="), &cygheap_user::env_domain},
{"USERNAME=", &cygheap_user::env_name}, {NL ("USERNAME="), &cygheap_user::env_name},
{"USERPROFILE=", &cygheap_user::env_userprofile}, {NL ("USERPROFILE="), &cygheap_user::env_userprofile},
}; };
char * char *
spenv::retrieve (bool no_envblock, const char *const envname, int len) spenv::retrieve (bool no_envblock, const char *const envname)
{ {
if (len && !strncasematch (envname, name, len)) if (envname && !strncasematch (envname, name, namelen))
return NULL; return NULL;
if (from_cygheap) if (from_cygheap)
{ {
const char *p; const char *p;
if (!len) if (!envname)
return NULL; /* No need to force these into the return NULL; /* No need to force these into the
environment */ environment */
@ -791,21 +793,19 @@ spenv::retrieve (bool no_envblock, const char *const envname, int len)
method. */ method. */
if (!(p = (cygheap->user.*from_cygheap) ())) if (!(p = (cygheap->user.*from_cygheap) ()))
return NULL; return NULL;
int namelen = strlen (name);
char *s = (char *) cmalloc (HEAP_1_STR, namelen + strlen (p) + 1); char *s = (char *) cmalloc (HEAP_1_STR, namelen + strlen (p) + 1);
strcpy (s, name); strcpy (s, name);
(void) strcpy (s + namelen, p); (void) strcpy (s + namelen, p);
return s; return s;
} }
if (len) if (envname)
return cstrdup1 (envname); return cstrdup1 (envname);
char dum[1]; char dum[1];
int vallen = GetEnvironmentVariable (name, dum, 0); int vallen = GetEnvironmentVariable (name, dum, 0);
if (vallen > 0) if (vallen > 0)
{ {
int namelen = strlen (name);
char *p = (char *) cmalloc (HEAP_1_STR, namelen + ++vallen); char *p = (char *) cmalloc (HEAP_1_STR, namelen + ++vallen);
strcpy (p, name); strcpy (p, name);
if (GetEnvironmentVariable (name, p + namelen, vallen)) if (GetEnvironmentVariable (name, p + namelen, vallen))
@ -848,20 +848,19 @@ build_env (const char * const *envp, char *&envblock, int &envc,
"special" entries, if necessary. */ "special" entries, if necessary. */
for (srcp = envp, dstp = newenv; *srcp; srcp++, dstp++) for (srcp = envp, dstp = newenv; *srcp; srcp++, dstp++)
{ {
len = strcspn (*srcp, "=") + 1;
/* Look for entries that require special attention */ /* Look for entries that require special attention */
for (unsigned i = 0; i < SPENVS_SIZE; i++) for (unsigned i = 0; i < SPENVS_SIZE; i++)
if (!saw_spenv[i] if (!saw_spenv[i] && (*dstp = spenvs[i].retrieve (no_envblock, *srcp)))
&& (*dstp = spenvs[i].retrieve (no_envblock, *srcp, len)))
{ {
saw_spenv[i] = 1; saw_spenv[i] = 1;
goto next; goto next;
} }
/* Add entry to new environment */
*dstp = cstrdup1 (*srcp); *dstp = cstrdup1 (*srcp);
next: next:
/* If necessary, calculate rough running total for envblock size */
if (!no_envblock) if (!no_envblock)
tl += strlen (*dstp) + 1; tl += strlen (*dstp) + 1;
} }
@ -879,7 +878,7 @@ build_env (const char * const *envp, char *&envblock, int &envc,
} }
} }
envc = dstp - newenv; envc = dstp - newenv; /* Number of entries in newenv */
*dstp = NULL; /* Terminate */ *dstp = NULL; /* Terminate */
if (no_envblock) if (no_envblock)