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We now send argv to the server after parsing it in the client to get the

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command, so the client should not modify it. Instead, take a copy. Fixes
parsing command lists, reported by mcbride@.
This commit is contained in:
Nicholas Marriott
2010-10-29 20:11:57 +00:00
parent 5de84eca3d
commit 34d05ea7cd
3 changed files with 29 additions and 8 deletions
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20
cmd-list.c
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@ -29,7 +29,9 @@ cmd_list_parse(int argc, char **argv, char **cause)
struct cmd *cmd;
int i, lastsplit;
size_t arglen, new_argc;
char **new_argv;
char **copy_argv, **new_argv;
copy_argv = cmd_copy_argv(argc, argv);
cmdlist = xmalloc(sizeof *cmdlist);
cmdlist->references = 1;
@ -37,18 +39,18 @@ cmd_list_parse(int argc, char **argv, char **cause)
lastsplit = 0;
for (i = 0; i < argc; i++) {
arglen = strlen(argv[i]);
if (arglen == 0 || argv[i][arglen - 1] != ';')
arglen = strlen(copy_argv[i]);
if (arglen == 0 || copy_argv[i][arglen - 1] != ';')
continue;
argv[i][arglen - 1] = '\0';
copy_argv[i][arglen - 1] = '\0';
if (arglen > 1 && argv[i][arglen - 2] == '\\') {
argv[i][arglen - 2] = ';';
if (arglen > 1 && copy_argv[i][arglen - 2] == '\\') {
copy_argv[i][arglen - 2] = ';';
continue;
}
new_argc = i - lastsplit;
new_argv = argv + lastsplit;
new_argv = copy_argv + lastsplit;
if (arglen != 1)
new_argc++;
@ -61,16 +63,18 @@ cmd_list_parse(int argc, char **argv, char **cause)
}
if (lastsplit != argc) {
cmd = cmd_parse(argc - lastsplit, argv + lastsplit, cause);
cmd = cmd_parse(argc - lastsplit, copy_argv + lastsplit, cause);
if (cmd == NULL)
goto bad;
TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
}
cmd_free_argv(argc, copy_argv);
return (cmdlist);
bad:
cmd_list_free(cmdlist);
cmd_free_argv(argc, copy_argv);
return (NULL);
}