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wizard: check if the config file does not already exist and if we can create it

This commit is contained in:
Michael Stapelberg 2011-05-01 12:50:18 +02:00
parent 2491a155ee
commit 9101f4cce2
1 changed files with 19 additions and 0 deletions
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19
i3-config-wizard/main.c
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@ -23,6 +23,8 @@
#include <stdint.h>
#include <getopt.h>
#include <limits.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
@ -45,6 +47,7 @@ while (0)
enum { STEP_WELCOME, STEP_GENERATE } current_step = STEP_WELCOME;
enum { MOD_ALT, MOD_SUPER } modifier = MOD_SUPER;
static char *config_path = "/tmp/wizout/i3.config";
static xcb_connection_t *conn;
static uint32_t font_id;
static uint32_t font_bold_id;
@ -271,6 +274,22 @@ int main(int argc, char *argv[]) {
}
}
/* Check if the destination config file does not exist but the path is
* writable. If not, exit now, this program is not useful in that case. */
struct stat stbuf;
if (stat(config_path, &stbuf) == 0) {
printf("The config file \"%s\" already exists. Exiting.\n", config_path);
return 0;
}
int fd;
if ((fd = open(config_path, O_CREAT | O_RDWR, 0644)) == -1) {
printf("Cannot open file \"%s\" for writing: %s. Exiting.\n", config_path, strerror(errno));
return 0;
}
close(fd);
unlink(config_path);
if (socket_path == NULL)
socket_path = socket_path_from_x11();