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https://codeberg.org/dnkl/foot.git
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client: send overrides for everything that is publicly visible in the conf
Send a generic “overrides” list to the server, containing options in text, on the format “section.key=value”. This reduces the size of the base client/server protocol packet, as well as opens up for a generic -o,--override command line option (not yet implemented).
This commit is contained in:
Daniel Eklöf
parent
fa5cde6ce1
commit
136d60606a
4 changed files with 109 additions and 141 deletions
140
client.c
140
client.c
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@ -12,6 +12,8 @@
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#include <sys/un.h>
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#include <sys/stat.h>
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#include <tllist.h>
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#define LOG_MODULE "foot-client"
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#define LOG_ENABLE_DBG 0
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#include "log.h"
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@ -96,22 +98,22 @@ main(int argc, char *const *argv)
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{NULL, no_argument, NULL, 0},
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};
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const char *term = "";
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const char *title = "";
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const char *app_id = "";
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tll(char *) overrides = tll_init();
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const char *custom_cwd = NULL;
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unsigned size_type = 0; // enum conf_size_type (without pulling in tllist/fcft via config.h)
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unsigned width = 0;
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unsigned height = 0;
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const char *server_socket_path = NULL;
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enum log_class log_level = LOG_CLASS_INFO;
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enum log_colorize log_colorize = LOG_COLORIZE_AUTO;
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bool login_shell = false;
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bool maximized = false;
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bool fullscreen = false;
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bool hold = false;
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bool no_wait = false;
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char buf[1024];
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/* malloc:ed and needs to be in scope of all goto's */
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char *_cwd = NULL;
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struct client_string *coverrides = NULL;
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struct client_string *cargv = NULL;
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while (true) {
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int c = getopt_long(argc, argv, "+t:T:a:w:W:mFLD:s:HNd:l::vh", longopts, NULL);
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if (c == -1)
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@ -119,55 +121,62 @@ main(int argc, char *const *argv)
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switch (c) {
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case 't':
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term = optarg;
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snprintf(buf, sizeof(buf), "term=%s", optarg);
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tll_push_back(overrides, xstrdup(buf));
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break;
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case 'T':
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title = optarg;
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snprintf(buf, sizeof(buf), "title=%s", optarg);
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tll_push_back(overrides, xstrdup(buf));
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break;
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case 'a':
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app_id = optarg;
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snprintf(buf, sizeof(buf), "app-id=%s", optarg);
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tll_push_back(overrides, xstrdup(buf));
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break;
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case 'L':
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login_shell = true;
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tll_push_back(overrides, xstrdup("login-shell=yes"));
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break;
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case 'D': {
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struct stat st;
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if (stat(optarg, &st) < 0 || !(st.st_mode & S_IFDIR)) {
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fprintf(stderr, "error: %s: not a directory\n", optarg);
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return ret;
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goto err;
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}
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custom_cwd = optarg;
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break;
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}
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case 'w':
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case 'w': {
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unsigned width, height;
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if (sscanf(optarg, "%ux%u", &width, &height) != 2 || width == 0 || height == 0) {
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fprintf(stderr, "error: invalid window-size-pixels: %s\n", optarg);
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return ret;
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}
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size_type = 0; // CONF_SIZE_PX
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snprintf(buf, sizeof(buf), "initial-window-size-pixels=%ux%u", width, height);
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tll_push_back(overrides, xstrdup(buf));
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break;
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}
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case 'W':
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case 'W': {
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unsigned width, height;
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if (sscanf(optarg, "%ux%u", &width, &height) != 2 || width == 0 || height == 0) {
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fprintf(stderr, "error: invalid window-size-chars: %s\n", optarg);
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return ret;
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goto err;
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}
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size_type = 1; // CONF_SIZE_CELLS
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snprintf(buf, sizeof(buf), "initial-window-size-chars=%ux%u", width, height);
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tll_push_back(overrides, xstrdup(buf));
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break;
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}
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case 'm':
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maximized = true;
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fullscreen = false;
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tll_push_back(overrides, xstrdup("initial-window-mode=maximized"));
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break;
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case 'F':
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fullscreen = true;
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maximized = false;
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tll_push_back(overrides, xstrdup("initial-window-mode=fullscreen"));
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break;
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case 's':
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@ -190,7 +199,7 @@ main(int argc, char *const *argv)
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"-d,--log-level: %s: argument must be one of %s\n",
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optarg,
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log_level_string_hint());
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return ret;
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goto err;
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}
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log_level = lvl;
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break;
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@ -205,20 +214,22 @@ main(int argc, char *const *argv)
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log_colorize = LOG_COLORIZE_ALWAYS;
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else {
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fprintf(stderr, "%s: argument must be one of 'never', 'always' or 'auto'\n", optarg);
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return ret;
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goto err;
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}
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break;
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case 'v':
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printf("footclient %s\n", version_and_features());
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return EXIT_SUCCESS;
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ret = EXIT_SUCCESS;
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goto err;
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case 'h':
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print_usage(prog_name);
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return EXIT_SUCCESS;
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ret = EXIT_SUCCESS;
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goto err;
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case '?':
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return ret;
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goto err;
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}
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}
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@ -227,10 +238,6 @@ main(int argc, char *const *argv)
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log_init(log_colorize, false, LOG_FACILITY_USER, log_level);
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/* malloc:ed and needs to be in scope of all goto's */
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char *_cwd = NULL;
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struct client_argv *cargv = NULL;
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int fd = socket(AF_UNIX, SOCK_STREAM, 0);
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if (fd == -1) {
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LOG_ERRNO("failed to create socket");
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@ -290,33 +297,36 @@ main(int argc, char *const *argv)
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/* String lengths, including NULL terminator */
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const size_t cwd_len = strlen(cwd) + 1;
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const size_t term_len = strlen(term) + 1;
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const size_t title_len = strlen(title) + 1;
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const size_t app_id_len = strlen(app_id) + 1;
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const size_t override_count = tll_length(overrides);
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const struct client_data data = {
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.width = width,
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.height = height,
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.size_type = size_type,
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.maximized = maximized,
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.fullscreen = fullscreen,
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.hold = hold,
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.login_shell = login_shell,
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.no_wait = no_wait,
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.cwd_len = cwd_len,
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.term_len = term_len,
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.title_len = title_len,
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.app_id_len = app_id_len,
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.override_count = override_count,
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.argc = argc,
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};
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/* Total packet length, not (yet) including argv[] */
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uint64_t total_len = (
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sizeof(data) +
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cwd_len +
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term_len +
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title_len +
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app_id_len);
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/* Total packet length, not (yet) including overrides or argv[] */
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uint64_t total_len = sizeof(data) + cwd_len;
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/* Add overrides to total packet length */
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coverrides = xmalloc(override_count * sizeof(coverrides[0]));
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{
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size_t i = 0;
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tll_foreach(overrides, it) {
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const size_t len = strlen(it->item) + 1;
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if (len >= 1 << (8 * sizeof(coverrides[i].len))) {
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LOG_ERR("override length overflow");
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goto err;
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}
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coverrides[i].len = len;
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total_len += sizeof(coverrides[i]) + coverrides[i].len;
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i++;
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}
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}
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cargv = xmalloc(argc * sizeof(cargv[0]));
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@ -336,9 +346,7 @@ main(int argc, char *const *argv)
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/* Check for size overflows */
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if (total_len >= 1llu << (8 * sizeof(uint32_t)) ||
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cwd_len >= 1 << (8 * sizeof(data.cwd_len)) ||
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term_len >= 1 << (8 * sizeof(data.term_len)) ||
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title_len >= 1 << (8 * sizeof(data.title_len)) ||
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app_id_len >= 1 << (8 * sizeof(data.app_id_len)) ||
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override_count > (size_t)(unsigned int)data.override_count ||
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argc > (int)(unsigned int)data.argc)
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{
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LOG_ERR("size overflow");
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@ -348,21 +356,33 @@ main(int argc, char *const *argv)
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/* Send everything except argv[] */
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if (send(fd, &(uint32_t){total_len}, sizeof(uint32_t), 0) != sizeof(uint32_t) ||
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send(fd, &data, sizeof(data), 0) != sizeof(data) ||
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send(fd, cwd, cwd_len, 0) != cwd_len ||
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send(fd, term, term_len, 0) != term_len ||
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send(fd, title, title_len, 0) != title_len ||
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send(fd, app_id, app_id_len, 0) != app_id_len)
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send(fd, cwd, cwd_len, 0) != cwd_len)
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{
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LOG_ERRNO("failed to send setup packet to server");
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goto err;
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}
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/* Send overrides */
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{
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size_t i = 0;
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tll_foreach(overrides, it) {
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if (send(fd, &coverrides[i], sizeof(coverrides[i]), 0) != sizeof(coverrides[i]) ||
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send(fd, it->item, coverrides[i].len, 0) != coverrides[i].len)
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{
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LOG_ERRNO("failed to send setup packet (overrides) to server");
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goto err;
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}
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i++;
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}
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}
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/* Send argv[] */
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for (size_t i = 0; i < argc; i++) {
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if (send(fd, &cargv[i], sizeof(cargv[i]), 0) != sizeof(cargv[i]) ||
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send(fd, argv[i], cargv[i].len, 0) != cargv[i].len)
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{
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LOG_ERRNO("failed to send setup packet to server");
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LOG_ERRNO("failed to send setup packet (argv) to server");
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goto err;
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}
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}
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@ -386,7 +406,9 @@ main(int argc, char *const *argv)
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ret = exit_code;
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err:
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tll_free_and_free(overrides, free);
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free(cargv);
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free(coverrides);
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free(_cwd);
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if (fd != -1)
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close(fd);
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