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#define _XOPEN_SOURCE 500
#include <libgen.h>
#include <strings.h>
#include <unistd.h>
#include <wordexp.h>
#include <errno.h>
#include "sway/commands.h"
#include "sway/config.h"
#include "log.h"
#include "stringop.h"
static const char *bg_options[] = {
"stretch",
"center",
"fill",
"fit",
"tile",
};
struct cmd_results *output_cmd_background(int argc, char **argv) {
if (!config->handler_context.output_config) {
return cmd_results_new(CMD_FAILURE, "output", "Missing output config");
}
if (!argc) {
return cmd_results_new(CMD_INVALID, "output",
"Missing background file or color specification.");
}
if (argc < 2) {
return cmd_results_new(CMD_INVALID, "output",
"Missing background scaling mode or `solid_color`.");
}
struct output_config *output = config->handler_context.output_config;
if (strcasecmp(argv[1], "solid_color") == 0) {
output->background = calloc(1, strlen(argv[0]) + 3);
snprintf(output->background, strlen(argv[0]) + 3, "\"%s\"", argv[0]);
output->background_option = strdup("solid_color");
argc -= 2; argv += 2;
} else {
bool valid = false;
char *mode;
size_t j;
for (j = 0; j < (size_t)argc; ++j) {
mode = argv[j];
size_t n = sizeof(bg_options) / sizeof(char *);
for (size_t k = 0; k < n; ++k) {
if (strcasecmp(mode, bg_options[k]) == 0) {
valid = true;
break;
}
}
if (valid) {
break;
}
}
if (!valid) {
return cmd_results_new(CMD_INVALID, "output",
"Missing background scaling mode.");
}
wordexp_t p;
char *src = join_args(argv, j);
if (wordexp(src, &p, 0) != 0 || p.we_wordv[0] == NULL) {
return cmd_results_new(CMD_INVALID, "output",
"Invalid syntax (%s).", src);
}
free(src);
src = p.we_wordv[0];
if (config->reading && *src != '/') {
char *conf = strdup(config->current_config);
if (conf) {
char *conf_path = dirname(conf);
src = malloc(strlen(conf_path) + strlen(src) + 2);
if (!src) {
free(conf);
wordfree(&p);
wlr_log(L_ERROR,
"Unable to allocate resource: Not enough memory");
return cmd_results_new(CMD_FAILURE, "output",
"Unable to allocate resources");
}
sprintf(src, "%s/%s", conf_path, p.we_wordv[0]);
free(conf);
} else {
wlr_log(L_ERROR, "Unable to allocate background source");
}
}
if (access(src, F_OK) == -1) {
struct cmd_results *cmd_res = cmd_results_new(CMD_FAILURE, "output",
"Unable to access background file '%s': %s", src, strerror(errno));
free(src);
wordfree(&p);
return cmd_res;
}
output->background = strdup(src);
output->background_option = strdup(mode);
if (src != p.we_wordv[0]) {
free(src);
}
wordfree(&p);
argc -= j + 1; argv += j + 1;
}
config->handler_context.leftovers.argc = argc;
config->handler_context.leftovers.argv = argv;
return NULL;
}
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