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hkd
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die() is now a function

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xkbcommon
Alessandro Mauri 5 years ago
parent 4a4eaf93e6
commit 6bad3614d7
1 changed files with 63 additions and 54 deletions
  1. 117
      hkd.c

117
hkd.c
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@ -17,6 +17,7 @@
#include <wordexp.h>
#include <ctype.h>
#include <sys/stat.h>
#include <stdarg.h>
/* Value defines */
#define FILE_NAME_MAX_LENGTH 255
@ -37,7 +38,6 @@
#define green(str) (ANSI_COLOR_GREEN str ANSI_COLOR_RESET)
#define red(str) (ANSI_COLOR_RED str ANSI_COLOR_RESET)
#define test_bit(yalv, abs_b) ((((char *)abs_b)[yalv/8] & (1<<yalv%8)) > 0)
#define die(str) {perror(ANSI_COLOR_RED str); fputs(ANSI_COLOR_RESET, stderr); exit(errno);}
#define array_size(val) (val ? sizeof(val)/sizeof(val[0]) : 0)
#define array_size_const(val) ((int)(sizeof(val)/sizeof(val[0])))
@ -226,6 +226,7 @@ void exec_command (char *);
void parse_config_file (void);
void update_descriptors_list (int **, int *);
void remove_lock (void);
void die (const char *, ...);
int prepare_epoll (int *, int, int);
unsigned short key_to_code (char *);
/* hotkey list operations */
@ -249,7 +250,7 @@ int main (int argc, char *argv[])
/* Check if hkd is already running */
lock_file_descriptor = open(LOCK_FILE, O_RDWR | O_CREAT, 0600);
if (lock_file_descriptor < 0)
die("can't open lock file");
die("Can't open lock file:");
fl.l_start = 0;
fl.l_len = 0;
fl.l_type = F_WRLCK;
@ -273,7 +274,7 @@ int main (int argc, char *argv[])
case 'c':
ext_config_file = malloc(strlen(optarg) + 1);
if (!ext_config_file)
die("malloc in main()");
die("malloc in main():");
strcpy(ext_config_file, optarg);
break;
}
@ -287,9 +288,9 @@ int main (int argc, char *argv[])
/* Prepare directory update watcher */
if (event_watcher < 0)
die("could not call inotify_init");
die("Could not call inotify_init:");
if (inotify_add_watch(event_watcher, EVDEV_ROOT_DIR, IN_CREATE | IN_DELETE) < 0)
die("could not add /dev/input to the watch list");
die("Could not add /dev/input to the watch list:");
/* Prepare epoll list */
ev_fd = prepare_epoll(fds, fd_num, event_watcher);
@ -314,7 +315,7 @@ int main (int argc, char *argv[])
sleep(1); // wait for devices to settle
update_descriptors_list(&fds, &fd_num);
if (close(ev_fd) < 0)
die("could not close event filedescriptors list (ev_fd)");
die("Could not close event filedescriptors list (ev_fd):");
ev_fd = prepare_epoll(fds, fd_num, event_watcher);
goto mainloop_begin;
}
@ -386,7 +387,7 @@ int main (int argc, char *argv[])
close(event_watcher);
for (int i = 0; i < fd_num; i++)
if (close(fds[i]) == -1)
die("close file descriptors");
die("Error closing file descriptors:");
return 0;
}
@ -433,10 +434,8 @@ void int_handler (int signum)
{
switch (signum) {
case SIGINT:
if (dead) {
fprintf(stderr, red("an error occured, exiting\n"));
exit(EXIT_FAILURE);
}
if (dead)
die("An error occured, exiting");
if (vflag)
printf(yellow("Received interrupt signal, exiting gracefully...\n"));
dead = 1;
@ -473,8 +472,7 @@ void exec_command (char *command)
case 0:
/* This is the child process, execute the command */
execvp(result.we_wordv[0], result.we_wordv);
fprintf(stderr, red("%s : %s\n"), command, strerror(errno));
exit(errno);
die("%s:", command);
break;
default:
while (waitpid(cpid, NULL, WNOHANG) == -1) {}
@ -493,7 +491,7 @@ void update_descriptors_list (int **fds, int *fd_num)
/* Open the event directory */
DIR *ev_dir = opendir(EVDEV_ROOT_DIR);
if (!ev_dir)
die("could not open /dev/input");
die("Could not open /dev/input:");
(*fd_num) = 0;
@ -534,7 +532,7 @@ void update_descriptors_list (int **fds, int *fd_num)
tmp_p = realloc((*fds), sizeof(int) * ((*fd_num) + 1));
if (!tmp_p)
die("realloc file descriptors");
die("realloc file descriptors:");
(*fds) = (int *) tmp_p;
(*fds)[(*fd_num)] = tmp_fd;
@ -545,8 +543,7 @@ void update_descriptors_list (int **fds, int *fd_num)
if (vflag)
printf(green("Monitoring %d devices\n"), *fd_num);
} else {
fprintf(stderr, red("Could not open any devices, exiting\n"));
exit(EXIT_FAILURE);
die("Could not open any devices, exiting");
}
}
@ -556,12 +553,12 @@ int prepare_epoll (int *fds, int fd_num, int event_watcher)
static struct epoll_event epoll_read_ev;
epoll_read_ev.events = EPOLLIN;
if (ev_fd < 0)
die("failed epoll_create");
die("epoll_create failed in prepare_epoll:");
if (epoll_ctl(ev_fd, EPOLL_CTL_ADD, event_watcher, &epoll_read_ev) < 0)
die("could not add file descriptor to the epoll list");
die("Could not add file descriptor to the epoll list:");
for (int i = 0; i < fd_num; i++)
if (epoll_ctl(ev_fd, EPOLL_CTL_ADD, fds[i], &epoll_read_ev) < 0)
die("could not add file descriptor to the epoll list");
die("Could not add file descriptor to the epoll list:");
return ev_fd;
}
@ -611,9 +608,9 @@ void hotkey_list_add (struct hotkey_list_e *head, struct key_buffer *kb, char *c
if (!(size = strlen(cmd)))
return;
if (!(tmp = malloc(sizeof(struct hotkey_list_e))))
die("memory allocation failed in hotkey_list_add()");
die("Memory allocation failed in hotkey_list_add():");
if (!(tmp->command = malloc(size + 1)))
die("memory allocation failed in hotkey_list_add()");
die("Memory allocation failed in hotkey_list_add():");
strcpy(tmp->command, cmd);
tmp->kb = *kb;
tmp->fuzzy = f;
@ -653,16 +650,15 @@ void parse_config_file (void)
/* If the error was WRDE_NOSPACE,
* then perhaps part of the result was allocated */
wordfree (&result);
die("not enough space")
die("Not enough space:");
default:
/* Some other error */
die("path not valid");
die("Path not valid:");
}
fd = fopen(result.we_wordv[0], "r");
wordfree(&result);
if (!fd)
die("error opening config file");
die("Error opening config file:");
free(ext_config_file);
ext_config_file = NULL;
} else {
@ -674,10 +670,9 @@ void parse_config_file (void)
/* If the error was WRDE_NOSPACE,
* then perhaps part of the result was allocated */
wordfree (&result);
die("not enough space")
die("Not enough space:");
default:
/* Some other error */
die("path not valid");
die("Path not valid:");
}
fd = fopen(result.we_wordv[0], "r");
@ -688,7 +683,7 @@ void parse_config_file (void)
printf(yellow("config file not found at %s\n"), config_paths[i]);
}
if (!fd)
die("could not open any config files, check the log for more details");
die("Could not open any config files, check the log for more details");
}
while (!done) {
memset(block, 0, BLOCK_SIZE);
@ -739,10 +734,9 @@ void parse_config_file (void)
fuzzy = 1;
break;
default:
fprintf(stderr, red("Error at line %d: "
"hotkey definition must start with '-' or '*'\n"),
die("Error at line %d: "
"hotkey definition must start with '-' or '*'",
linenum);
exit(-1);
break;
}
bb++, remaining--;
@ -752,12 +746,12 @@ void parse_config_file (void)
case 3:
if (!keys) {
if (!(keys = malloc(alloc_size = (sizeof(char) * 64))))
die("malloc for keys in parse_config_file()");
die("malloc for keys in parse_config_file():");
memset(keys, 0, alloc_size);
alloc_tmp = 0;
} else if (alloc_tmp >= alloc_size) {
if (!(keys = realloc(keys, alloc_size *= 2)))
die("realloc for keys in parse_config_file()");
die("realloc for keys in parse_config_file():");
memset(&keys[alloc_size / 2], 0, alloc_size / 2);
}
@ -777,22 +771,21 @@ void parse_config_file (void)
state = 4;
break;
} else {
fprintf(stderr, red("Error at line %d: "
"no command specified, missing ':' after keys\n"),
die("Error at line %d: "
"no command specified, missing ':' after keys",
linenum);
exit(-1);
}
break;
// Get command
case 4:
if (!cmd) {
if (!(cmd = malloc(alloc_size = (sizeof(char) * 128))))
die("malloc for cmd in parse_config_file()");
die("malloc for cmd in parse_config_file():");
memset(cmd, 0, alloc_size);
alloc_tmp = 0;
} else if (alloc_tmp >= alloc_size) {
if (!(cmd = realloc(cmd, alloc_size *= 2)))
die("realloc for cmd in parse_config_file()");
die("realloc for cmd in parse_config_file():");
memset(&cmd[alloc_size / 2], 0, alloc_size / 2);
}
@ -824,17 +817,15 @@ void parse_config_file (void)
}
}
cp_tmp = strtok(keys, ",");
if(!cp_tmp) {
fprintf(stderr, red("Error at line %d: "
"keys not present\n"), linenum - 1);
exit(-1);
}
if(!cp_tmp)
die("Error at line %d: "
"keys not present", linenum - 1);
do {
if (!(us_tmp = key_to_code(cp_tmp))) {
fprintf(stderr, red("Error at line %d: "
"%s is not a valid key\n"),
die("Error at line %d: "
"%s is not a valid key",
linenum - 1, cp_tmp);
exit(-1);
}
if (key_buffer_add(&kb, us_tmp))
die("Too many keys");
@ -843,11 +834,9 @@ void parse_config_file (void)
cp_tmp = cmd;
while (isblank(*cp_tmp))
cp_tmp++;
if (*cp_tmp == '\0') {
fprintf(stderr, red("Error at line %d: "
"command not present\n"), linenum - 1);
exit(-1);
}
if (*cp_tmp == '\0')
die("Error at line %d: "
"command not present", linenum - 1);
hotkey_list_add(hotkey_list, &kb, cp_tmp, fuzzy);
hotkey_size_mask |= 1 << (kb.size - 1);
@ -860,7 +849,7 @@ void parse_config_file (void)
i_tmp = state = 0;
break;
default:
die("unknown state in parse_config_file");
die("Unknown state in parse_config_file");
break;
}
@ -881,3 +870,23 @@ void remove_lock (void)
{
unlink(LOCK_FILE);
}
void die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
fputs(ANSI_COLOR_RED, stderr);
vfprintf(stderr, fmt, ap);
if (fmt[0] && fmt[strlen(fmt) - 1] == ':') {
fputc(' ', stderr);
perror(NULL);
} else {
fputc('\n', stderr);
}
fputs(ANSI_COLOR_RESET, stderr);
va_end(ap);
exit(errno ? errno : 1);
}

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