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load-fragment: add support for overriding argv[0] in parsed command lines
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commit
6c666e26c5
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@ -386,49 +386,73 @@ static int config_parse_exec(
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char *w;
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unsigned k;
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size_t l;
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char *state;
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char *state, *path = NULL;
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bool honour_argv0, write_to_path;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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/* We accept an absolute path as first argument, or
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* alternatively an absolute prefixed with @ to allow
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* overriding of argv[0]. */
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honour_argv0 = rvalue[0] == '@';
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if (rvalue[honour_argv0 ? 1 : 0] != '/') {
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log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue);
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return -EINVAL;
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}
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k = 0;
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FOREACH_WORD_QUOTED(w, l, rvalue, state)
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k++;
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if (!(n = new(char*, k+1)))
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if (!(n = new(char*, k + (honour_argv0 ? 0 : 1))))
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return -ENOMEM;
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k = 0;
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FOREACH_WORD_QUOTED(w, l, rvalue, state)
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write_to_path = honour_argv0;
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FOREACH_WORD_QUOTED(w, l, rvalue, state) {
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if (write_to_path) {
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if (!(path = strndup(w+1, l-1)))
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goto fail;
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write_to_path = false;
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} else {
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if (!(n[k++] = strndup(w, l)))
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goto fail;
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}
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}
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n[k] = NULL;
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if (!n[0] || !path_is_absolute(n[0])) {
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log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue);
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if (!n[0]) {
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log_error("[%s:%u] Invalid command line: %s", filename, line, rvalue);
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strv_free(n);
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return -EINVAL;
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}
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if (!path)
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if (!(path = strdup(n[0])))
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goto fail;
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assert(path_is_absolute(path));
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if (!(nce = new0(ExecCommand, 1)))
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goto fail;
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nce->argv = n;
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if (!(nce->path = strdup(n[0])))
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goto fail;
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nce->path = path;
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exec_command_append_list(e, nce);
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return 0;
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fail:
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for (; k > 0; k--)
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free(n[k-1]);
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free(n);
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n[k] = NULL;
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strv_free(n);
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free(path);
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free(nce);
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return -ENOMEM;
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@ -24,4 +24,4 @@ After=shutdown.target killall.service
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Type=finish
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ValidNoProcess=yes
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Environment=RUNLEVEL=6
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ExecStart=/etc/init.d/reboot start
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ExecStart=@/etc/init.d/halt reboot start
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