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env.c (getenv, [...]): Remove trailing white space.

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2004-09-15  Steven G. Kargl  <kargls@comcast.net>
	Paul Brook  <paul@codesourcery.com>

	* intrinsics/env.c (getenv, get_environmental_variable): Remove
	trailing white space.  Uase alloca.  Honour trim_name.

Co-Authored-By: Paul Brook <paul@codesourcery.com>

From-SVN: r87547
This commit is contained in:
Steven G. Kargl 2004-09-15 12:59:22 +00:00 committed by Paul Brook
parent c36992ffc8
commit 3869a92c04
2 changed files with 30 additions and 13 deletions
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6
libgfortran/ChangeLog
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@ -1,3 +1,9 @@
2004-09-15 Steven G. Kargl <kargls@comcast.net>
Paul Brook <paul@codesourcery.com>
* intrinsics/env.c (getenv, get_environmental_variable): Remove
trailing white space. Uase alloca. Honour trim_name.
2004-09-13 Bud Davis <bdavis9659@comcast.net>
PR fortran/17090

37
libgfortran/intrinsics/env.c
View File

@ -24,6 +24,7 @@ Boston, MA 02111-1307, USA. */
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <alloca.h>
#include "libgfortran.h"
@ -37,13 +38,7 @@ prefix(getenv) (char * name,
gfc_charlen_type name_len,
gfc_charlen_type value_len)
{
/* Make a null-terminated copy of the name string so that c library
functions work correctly. This is a C99 VLA, which ought to be
faster than malloc and free. */
char name_nt[name_len+1];
char *name_nt;
char *res = NULL;
int res_len;
@ -55,8 +50,14 @@ prefix(getenv) (char * name,
else
memset (value, ' ', value_len); /* Blank the string. */
/* Trim trailing spaces from name. */
while (name_len > 0 && name[name_len - 1] == ' ')
name_len--;
/* Make a null terminated copy of the string. */
name_nt = alloca (name_len + 1);
memcpy (name_nt, name, name_len);
memset (&name_nt[name_len], '\0', 1);
name_nt[name_len] = '\0';
res = getenv(name_nt);
@ -74,9 +75,7 @@ prefix(getenv) (char * name,
/* GET_ENVIRONMENT_VARIABLE (name, [value, length, status, trim_name])
is a F2003 intrinsic for getting an environment variable. Note that as
Un*x doesn't consider trailing blanks in environment variables to be
significant, the trim_name argument has no meaning. */
is a F2003 intrinsic for getting an environment variable. */
/* Status codes specifyed by the standard. */
#define GFC_SUCCESS 0
@ -103,7 +102,8 @@ prefix(get_environment_variable_i4)
gfc_charlen_type value_len)
{
int stat = GFC_SUCCESS, res_len = 0;
char name_nt[name_len+1], *res;
char *name_nt;
char *res;
if (name == NULL)
runtime_error ("Name is required for get_environment_variable.");
@ -124,8 +124,16 @@ prefix(get_environment_variable_i4)
memset (value, ' ', value_len); /* Blank the string. */
}
if ((!trim_name) || *trim_name)
{
/* Trim trailing spaces from name. */
while (name_len > 0 && name[name_len - 1] == ' ')
name_len--;
}
/* Make a null terminated copy of the name. */
name_nt = alloca (name_len + 1);
memcpy (name_nt, name, name_len);
memset (&name_nt[name_len], '\0', 1);
name_nt[name_len] = '\0';
res = getenv(name_nt);
@ -170,6 +178,9 @@ prefix(get_environment_variable_i8)
GFC_INTEGER_4 length4, status4;
GFC_LOGICAL_4 trim_name4;
if (trim_name)
trim_name4 = *trim_name;
prefix (get_environment_variable_i4) (name, value, &length4, &status4,
&trim_name4, name_len, value_len);