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Goal: Concatenate the non-su arguments and provide them to the shell with
the -c option
Fixes: #317264
see also #276419
Status wrt upstream: This is a Debian specific patch.
Note: the fix of the man page is still missing.
(to be taken from the trunk)
--- a/src/su.c
+++ b/src/su.c
@@ -1150,6 +1150,35 @@
argv[0] = "-c";
argv[1] = command;
}
+ /* On Debian, the arguments are concatenated and the
+ * resulting string is always given to the shell with its
+ * -c option.
+ */
+ {
+ char **parg;
+ unsigned int cmd_len = 0;
+ char *cmd = NULL;
+ if (strcmp(argv[0], "-c") != 0) {
+ argv--;
+ argv[0] = "-c";
+ }
+ /* Now argv[0] is always -c, and other arguments
+ * can be concatenated
+ */
+ cmd_len = 1; /* finale '\0' */
+ for (parg = &argv[1]; *parg; parg++) {
+ cmd_len += strlen (*parg) + 1;
+ }
+ cmd = (char *) xmalloc (sizeof (char) * cmd_len);
+ cmd[0] = '\0';
+ for (parg = &argv[1]; *parg; parg++) {
+ strcat (cmd, " ");
+ strcat (cmd, *parg);
+ }
+ cmd[cmd_len - 1] = '\0';
+ argv[1] = &cmd[1]; /* do not take first space */
+ argv[2] = NULL;
+ }
/*
* Use the shell and create an argv
* with the rest of the command line included.
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