gdb/

[deliverable/binutils-gdb.git] / gdb / environ.c

diff --git a/gdb/environ.c b/gdb/environ.c
index 53e63e099dcb68de4ff062e478e49628486890ea..33426eb90bcb6535d874cdbbc69b9af2725a1339 100644 (file)
--- a/gdb/environ.c
+++ b/gdb/environ.c
@@ -1,9 +1,11 @@
 /* environ.c -- library for manipulating environments for GNU.
-   Copyright (C) 1986, 1989 Free Software Foundation, Inc.
+
+   Copyright (C) 1986, 1989-1995, 2000, 2003, 2005, 2007-2012 Free
+   Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -12,9 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define min(a, b) ((a) < (b) ? (a) : (b))
 #define max(a, b) ((a) > (b) ? (a) : (b))
@@ -22,17 +22,16 @@
 #include "defs.h"
 #include "environ.h"
 #include "gdb_string.h"
-#include "gdbcore.h"
 \f
 
 /* Return a new environment object.  */
 
-struct environ *
+struct gdb_environ *
 make_environ (void)
 {
-  register struct environ *e;
+  struct gdb_environ *e;
 
-  e = (struct environ *) xmalloc (sizeof (struct environ));
+  e = (struct gdb_environ *) xmalloc (sizeof (struct gdb_environ));
 
   e->allocated = 10;
   e->vector = (char **) xmalloc ((e->allocated + 1) * sizeof (char *));
@@ -43,14 +42,15 @@ make_environ (void)
 /* Free an environment and all the strings in it.  */
 
 void
-free_environ (register struct environ *e)
+free_environ (struct gdb_environ *e)
 {
-  register char **vector = e->vector;
+  char **vector = e->vector;
 
   while (*vector)
-    free (*vector++);
+    xfree (*vector++);
 
-  free (e);
+  xfree (e->vector);
+  xfree (e);
 }
 
 /* Copy the environment given to this process into E.
@@ -58,10 +58,10 @@ free_environ (register struct environ *e)
    that all strings in these environments are safe to free.  */
 
 void
-init_environ (register struct environ *e)
+init_environ (struct gdb_environ *e)
 {
   extern char **environ;
-  register int i;
+  int i;
 
   if (environ == NULL)
     return;
@@ -79,8 +79,9 @@ init_environ (register struct environ *e)
 
   while (--i >= 0)
     {
-      register int len = strlen (e->vector[i]);
-      register char *new = (char *) xmalloc (len + 1);
+      int len = strlen (e->vector[i]);
+      char *new = (char *) xmalloc (len + 1);
+
       memcpy (new, e->vector[i], len + 1);
       e->vector[i] = new;
     }
@@ -90,7 +91,7 @@ init_environ (register struct environ *e)
    This is used to get something to pass to execve.  */
 
 char **
-environ_vector (struct environ *e)
+environ_vector (struct gdb_environ *e)
 {
   return e->vector;
 }
@@ -98,14 +99,14 @@ environ_vector (struct environ *e)
 /* Return the value in environment E of variable VAR.  */
 
 char *
-get_in_environ (const struct environ *e, const char *var)
+get_in_environ (const struct gdb_environ *e, const char *var)
 {
-  register int len = strlen (var);
-  register char **vector = e->vector;
-  register char *s;
+  int len = strlen (var);
+  char **vector = e->vector;
+  char *s;
 
   for (; (s = *vector) != NULL; vector++)
-    if (STREQN (s, var, len) && s[len] == '=')
+    if (strncmp (s, var, len) == 0 && s[len] == '=')
       return &s[len + 1];
 
   return 0;
@@ -114,15 +115,15 @@ get_in_environ (const struct environ *e, const char *var)
 /* Store the value in E of VAR as VALUE.  */
 
 void
-set_in_environ (struct environ *e, const char *var, const char *value)
+set_in_environ (struct gdb_environ *e, const char *var, const char *value)
 {
-  register int i;
-  register int len = strlen (var);
-  register char **vector = e->vector;
-  register char *s;
+  int i;
+  int len = strlen (var);
+  char **vector = e->vector;
+  char *s;
 
   for (i = 0; (s = vector[i]) != NULL; i++)
-    if (STREQN (s, var, len) && s[len] == '=')
+    if (strncmp (s, var, len) == 0 && s[len] == '=')
       break;
 
   if (s == 0)
@@ -137,7 +138,7 @@ set_in_environ (struct environ *e, const char *var, const char *value)
       vector[i + 1] = 0;
     }
   else
-    free (s);
+    xfree (s);
 
   s = (char *) xmalloc (len + strlen (value) + 2);
   strcpy (s, var);
@@ -161,20 +162,20 @@ set_in_environ (struct environ *e, const char *var, const char *value)
 /* Remove the setting for variable VAR from environment E.  */
 
 void
-unset_in_environ (struct environ *e, char *var)
+unset_in_environ (struct gdb_environ *e, char *var)
 {
-  register int len = strlen (var);
-  register char **vector = e->vector;
-  register char *s;
+  int len = strlen (var);
+  char **vector = e->vector;
+  char *s;
 
   for (; (s = *vector) != NULL; vector++)
     {
-      if (STREQN (s, var, len) && s[len] == '=')
+      if (strncmp (s, var, len) == 0 && s[len] == '=')
        {
-         free (s);
+         xfree (s);
          /* Walk through the vector, shuffling args down by one, including
             the NULL terminator.  Can't use memcpy() here since the regions
-            overlap, and memmove() might not be available. */
+            overlap, and memmove() might not be available.  */
          while ((vector[0] = vector[1]) != NULL)
            {
              vector++;