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#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "runes.h"
static void runes_vwarn(const char *fmt, va_list ap);
void runes_warn(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
runes_vwarn(fmt, ap);
va_end(ap);
}
void runes_die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
runes_vwarn(fmt, ap);
va_end(ap);
exit(1);
}
char *runes_get_daemon_socket_name()
{
char *home, *runtime_dir, *socket_dir, *socket_file;
home = getenv("HOME");
runtime_dir = getenv("XDG_RUNTIME_DIR");
if (runtime_dir) {
runes_sprintf_dup(&socket_dir, "%s/"RUNES_PROGRAM_NAME, runtime_dir);
}
else {
runes_sprintf_dup(&socket_dir, "%s/."RUNES_PROGRAM_NAME, home);
}
runes_sprintf_dup(&socket_file, "%s/"RUNES_PROGRAM_NAME"d", socket_dir);
free(socket_dir);
return socket_file;
}
int runes_sprintf_dup(char **out, const char *fmt, ...)
{
int outlen = 0;
va_list ap;
va_start(ap, fmt);
outlen = vsnprintf(*out, outlen, fmt, ap);
va_end(ap);
*out = malloc(outlen + 1);
va_start(ap, fmt);
outlen = vsnprintf(*out, outlen + 1, fmt, ap);
va_end(ap);
return outlen;
}
void runes_mkdir_p(char *dir)
{
char *path_component, *save_ptr, *tok_str, *partial_path;
struct stat st;
dir = strdup(dir);
partial_path = strdup("/");
tok_str = dir;
while ((path_component = strtok_r(tok_str, "/", &save_ptr))) {
char *new_path;
runes_sprintf_dup(&new_path, "%s%s/", partial_path, path_component);
if (mkdir(new_path, 0755)) {
if (errno != EEXIST) {
runes_die("couldn't create directory %s: %s",
new_path, strerror(errno));
}
}
free(partial_path);
partial_path = new_path;
tok_str = NULL;
}
if (stat(partial_path, &st)) {
runes_die("couldn't stat %s: %s", partial_path, strerror(errno));
}
if (!S_ISDIR(st.st_mode)) {
runes_die("couldn't create directory %s: %s",
partial_path, strerror(EEXIST));
}
free(partial_path);
free(dir);
}
char *runes_getcwd(void)
{
char buf[4096];
if (getcwd(buf, 4096)) {
return strdup(buf);
}
else {
runes_die("getcwd: %s", strerror(errno));
return NULL;
}
}
static void runes_vwarn(const char *fmt, va_list ap)
{
size_t fmt_len;
char *fmt_with_nl;
fmt_len = strlen(fmt);
fmt_with_nl = malloc(fmt_len + 2);
strcpy(fmt_with_nl, fmt);
fmt_with_nl[fmt_len] = '\n';
fmt_with_nl[fmt_len + 1] = '\0';
/* XXX make this do something else on windows */
vfprintf(stderr, fmt_with_nl, ap);
}
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