diff options
| author |   nicm <nicm@openbsd.org> | 2009-11-11 18:56:07 +0000 |
|---|---|---|
| committer | nicm <nicm@openbsd.org> | 2009-11-11 18:56:07 +0000 |
| commit | ffa9154148283f2a71615929f80386df3157ea6a (patch) | |
| tree | e3ba8099112c0f7b5fc47c17dad82681e8f438da | |
| parent | Add an explicit zero-length check for UTF-8 input data, prompted by a report (diff) | |
| download | wireguard-openbsd-ffa9154148283f2a71615929f80386df3157ea6a.tar.xz wireguard-openbsd-ffa9154148283f2a71615929f80386df3157ea6a.zip | |
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").
| -rw-r--r-- | usr.bin/tmux/cmd-string.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/usr.bin/tmux/cmd-string.c b/usr.bin/tmux/cmd-string.c index 19f43e1d2ef..a2f4e01bdaa 100644 --- a/usr.bin/tmux/cmd-string.c +++ b/usr.bin/tmux/cmd-string.c @@ -1,4 +1,4 @@ -/* $OpenBSD: cmd-string.c,v 1.7 2009/10/26 21:42:04 deraadt Exp $ */ +/* $OpenBSD: cmd-string.c,v 1.8 2009/11/11 18:56:07 nicm 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); } |