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/*
misc.c : irssi
Copyright (C) 1999 Timo Sirainen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "module.h"
#include "misc.h"
#include "pidwait.h"
#include <errno.h>
#include <regex.h>
typedef struct {
GInputCondition condition;
GInputFunction function;
gpointer data;
} IRSSI_INPUT_REC;
static gboolean irssi_io_invoke(GIOChannel *source, GIOCondition condition, gpointer data)
{
IRSSI_INPUT_REC *rec = data;
GInputCondition icond = 0;
if (condition & (G_IO_IN | G_IO_PRI))
icond |= G_INPUT_READ;
if (condition & G_IO_OUT)
icond |= G_INPUT_WRITE;
if (condition & (G_IO_ERR | G_IO_HUP | G_IO_NVAL))
icond |= G_INPUT_EXCEPTION;
if (rec->condition & icond)
rec->function(rec->data, g_io_channel_unix_get_fd(source), icond);
return TRUE;
}
int g_input_add(int source, GInputCondition condition,
GInputFunction function, gpointer data)
{
IRSSI_INPUT_REC *rec;
unsigned int result;
GIOChannel *channel;
GIOCondition cond = 0;
rec = g_new(IRSSI_INPUT_REC, 1);
rec->condition = condition;
rec->function = function;
rec->data = data;
if (condition & G_INPUT_READ)
cond |= (G_IO_IN | G_IO_PRI);
if (condition & G_INPUT_WRITE)
cond |= G_IO_OUT;
if (condition & G_INPUT_EXCEPTION)
cond |= G_IO_ERR|G_IO_HUP|G_IO_NVAL;
channel = g_io_channel_unix_new (source);
result = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, cond,
irssi_io_invoke, rec, g_free);
g_io_channel_unref(channel);
return result;
}
long get_timeval_diff(const GTimeVal *tv1, const GTimeVal *tv2)
{
long secs, usecs;
secs = tv1->tv_sec - tv2->tv_sec;
usecs = tv1->tv_usec - tv2->tv_usec;
if (usecs < 0) {
usecs += 1000000;
secs--;
}
usecs = usecs/1000 + secs * 1000;
return usecs;
}
int find_substr(const char *list, const char *item)
{
const char *ptr;
g_return_val_if_fail(list != NULL, FALSE);
g_return_val_if_fail(item != NULL, FALSE);
if (*item == '\0')
return FALSE;
for (;;) {
while (isspace((gint) *list)) list++;
if (*list == '\0') break;
ptr = strchr(list, ' ');
if (ptr == NULL) ptr = list+strlen(list);
if (g_strncasecmp(list, item, ptr-list) == 0 && item[ptr-list] == '\0')
return TRUE;
list = ptr;
}
return FALSE;
}
int strarray_length(char **array)
{
int len;
g_return_val_if_fail(array != NULL, 0);
len = 0;
while (*array) {
len++;
array++;
}
return len;
}
int strarray_find(char **array, const char *item)
{
char **tmp;
int index;
g_return_val_if_fail(array != NULL, 0);
g_return_val_if_fail(item != NULL, 0);
index = 0;
for (tmp = array; *tmp != NULL; tmp++, index++) {
if (g_strcasecmp(*tmp, item) == 0)
return index;
}
return -1;
}
int copyfile(const char *src, const char *dest)
{
FILE *fs, *fd;
int ret;
g_return_val_if_fail(src != NULL, FALSE);
g_return_val_if_fail(dest != NULL, FALSE);
fs = fopen(src, "rb");
if (fs == NULL) return FALSE;
ret = FALSE;
remove(dest); /* just to be sure there's no link already in dest */
fd = fopen(dest, "w+");
if (fd != NULL) {
int len;
char buf[1024];
while ((len = fread(buf, 1, sizeof(buf), fs)) > 0)
if (fwrite(buf, 1, len, fd) != len) break;
fclose(fd);
ret = TRUE;
}
fclose(fs);
return ret;
}
int execute(const char *cmd)
{
char **args;
char *prev, *dupcmd;
int pid, max, cnt;
g_return_val_if_fail(cmd != NULL, -1);
pid = fork();
if (pid == -1) return FALSE;
if (pid != 0) {
pidwait_add(pid);
return pid;
}
dupcmd = g_strdup(cmd);
max = 5; cnt = 0;
args = g_malloc(sizeof(char *)*max);
for (prev = dupcmd; ; dupcmd++) {
if (*dupcmd == '\0' || *dupcmd == ' ') {
args[cnt++] = prev;
if (cnt == max) {
max += 5;
args = g_realloc(args, sizeof(char *)*max);
}
if (*dupcmd == '\0') break;
*dupcmd++ = '\0';
prev = dupcmd;
}
}
args[cnt] = NULL;
execvp(args[0], args);
g_free(dupcmd);
_exit(99);
return -1;
}
GSList *gslist_find_string(GSList *list, const char *key)
{
for (list = list; list != NULL; list = list->next)
if (strcmp(list->data, key) == 0) return list;
return NULL;
}
GSList *gslist_find_icase_string(GSList *list, const char *key)
{
for (list = list; list != NULL; list = list->next)
if (g_strcasecmp(list->data, key) == 0) return list;
return NULL;
}
void *gslist_foreach_find(GSList *list, FOREACH_FIND_FUNC func, void *data)
{
void *ret;
while (list != NULL) {
ret = func(list->data, data);
if (ret != NULL) return ret;
list = list->next;
}
return NULL;
}
char *gslist_to_string(GSList *list, int offset, const char *delimiter)
{
GString *str;
char **data, *ret;
str = g_string_new(NULL);
while (list != NULL) {
data = G_STRUCT_MEMBER_P(list->data, offset);
if (str->len != 0) g_string_append(str, delimiter);
g_string_append(str, *data);
list = list->next;
}
ret = str->str;
g_string_free(str, FALSE);
return ret;
}
GList *glist_find_string(GList *list, const char *key)
{
for (list = list; list != NULL; list = list->next)
if (strcmp(list->data, key) == 0) return list;
return NULL;
}
GList *glist_find_icase_string(GList *list, const char *key)
{
for (list = list; list != NULL; list = list->next)
if (g_strcasecmp(list->data, key) == 0) return list;
return NULL;
}
char *stristr(const char *data, const char *key)
{
const char *pos, *max;
int keylen, datalen;
keylen = strlen(key);
datalen = strlen(data);
if (keylen > datalen)
return NULL;
max = data+datalen-keylen;
for (pos = data; pos <= max; pos++)
if (g_strncasecmp(pos, key, keylen) == 0) return (char *) pos;
return NULL;
}
#define isbound(c) \
((unsigned char) (c) < 128 && \
(isspace((int) (c)) || ispunct((int) (c))))
char *stristr_full(const char *data, const char *key)
{
const char *pos, *max;
int keylen, datalen;
keylen = strlen(key);
datalen = strlen(data);
if (keylen > datalen)
return NULL;
max = data+datalen-keylen;
for (pos = data; pos <= max; pos++) {
if (pos > data && !isbound(pos[-1])) continue;
if (g_strncasecmp(pos, key, keylen) == 0 &&
(pos[keylen] == '\0' || isbound(pos[keylen])))
return (char *) pos;
}
return NULL;
}
int regexp_match(const char *str, const char *regexp)
{
regex_t preg;
int ret;
if (regcomp(&preg, regexp, REG_EXTENDED|REG_ICASE|REG_NOSUB) != 0)
return 0;
ret = regexec(&preg, str, 0, NULL, 0);
regfree(&preg);
return ret == 0;
}
char *convert_home(const char *path)
{
return *path == '~' && (*(path+1) == '/' || *(path+1) == '\0') ?
g_strconcat(g_get_home_dir(), path+1, NULL) :
g_strdup(path);
}
int g_istr_equal(gconstpointer v, gconstpointer v2)
{
return g_strcasecmp((const char *) v, (const char *) v2) == 0;
}
int g_istr_cmp(gconstpointer v, gconstpointer v2)
{
return g_strcasecmp((const char *) v, (const char *) v2);
}
/* a char* hash function from ASU */
unsigned int g_istr_hash(gconstpointer v)
{
const char *s = (char *) v;
unsigned int h = 0, g;
while (*s != '\0') {
h = (h << 4) + toupper(*s);
if ((g = h & 0xf0000000)) {
h = h ^ (g >> 24);
h = h ^ g;
}
s++;
}
return h /* % M */;
}
/* Find `mask' from `data', you can use * and ? wildcards. */
int match_wildcards(const char *cmask, const char *data)
{
char *mask, *newmask, *p1, *p2;
int ret;
newmask = mask = g_strdup(cmask);
for (; *mask != '\0' && *data != '\0'; mask++) {
if (*mask != '*') {
if (*mask != '?' && toupper(*mask) != toupper(*data))
break;
data++;
continue;
}
while (*mask == '?' || *mask == '*') mask++;
if (*mask == '\0') {
data += strlen(data);
break;
}
p1 = strchr(mask, '*');
p2 = strchr(mask, '?');
if (p1 == NULL || (p2 < p1 && p2 != NULL)) p1 = p2;
if (p1 != NULL) *p1 = '\0';
data = stristr(data, mask);
if (data == NULL) break;
data += strlen(mask);
mask += strlen(mask)-1;
if (p1 != NULL) *p1 = p1 == p2 ? '?' : '*';
}
ret = data != NULL && *data == '\0' && *mask == '\0';
g_free(newmask);
return ret;
}
/* Return TRUE if all characters in `str' are numbers.
Stop when `end_char' is found from string. */
int is_numeric(const char *str, char end_char)
{
g_return_val_if_fail(str != NULL, FALSE);
while (*str != '\0' && *str != end_char) {
if (!isdigit(*str)) return FALSE;
str++;
}
return TRUE;
}
/* replace all `from' chars in string to `to' chars. returns `str' */
char *replace_chars(char *str, char from, char to)
{
char *p;
for (p = str; *p != '\0'; p++) {
if (*p == from) *p = to;
}
return str;
}
int octal2dec(int octal)
{
int dec, n;
dec = 0; n = 1;
while (octal != 0) {
dec += n*(octal%10);
octal /= 10; n *= 8;
}
return dec;
}
int dec2octal(int decimal)
{
int octal, pos;
octal = 0; pos = 0;
while (decimal > 0) {
octal += (decimal & 7)*(pos == 0 ? 1 : pos);
decimal /= 8;
pos += 10;
}
return octal;
}
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