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Sync OpenBSD patchset 530:

Browse Source 
Rewrite a confusing loop when freeing the arg array on exit and move the check
for argv being NULL, prompted by parfait via deraadt.

Also fix some definite brokenness when assigning multiple environment variables
in arguments (such as "X=1 Y=2").
This commit is contained in:
Tiago Cunha
2009-11-13 16:55:10 +00:00
parent 2ec5aca064
commit ba832ff2c3
1 changed files with 10 additions and 11 deletions
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21
cmd-string.c
View File

@@ -1,4 +1,4 @@
/* $Id: cmd-string.c,v 1.24 2009-10-28 23:12:38 tcunha Exp $ */
/* $Id: cmd-string.c,v 1.25 2009-11-13 16:55:10 tcunha Exp $ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -134,17 +134,15 @@ cmd_string_parse(const char *s, struct cmd_list **cmdlist, char **cause)
if (ch != EOF)
break;
if (argc == 0)
goto out;
for (i = 0; i < argc; i++) {
equals = strchr(argv[i], '=');
whitespace = argv[i] + strcspn(argv[i], " \t");
while (argc != 0) {
equals = strchr(argv[0], '=');
whitespace = argv[0] + strcspn(argv[0], " \t");
if (equals == NULL || equals > whitespace)
break;
environ_put(&global_environ, argv[i]);
memmove(&argv[i], &argv[i + 1], argc - i - 1);
environ_put(&global_environ, argv[0]);
argc--;
memmove(argv, argv + 1, argc * (sizeof *argv));
}
if (argc == 0)
goto out;
@@ -189,10 +187,11 @@ out:
if (buf != NULL)
xfree(buf);
while (--argc >= 0)
xfree(argv[argc]);
if (argv != NULL)
if (argv != NULL) {
for (i = 0; i < argc; i++)
xfree(argv[argc]);
xfree(argv);
}
return (rval);
}