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/*
* Guillaume Cottenceau (gc@mandrakesoft.com)
*
* Copyright 2000 Mandrakesoft
*
* This software may be freely redistributed under the terms of the GNU
* public license.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <ctype.h>
#include <dirent.h>
#include <sys/utsname.h>
#include "utils.h"
#include "log.h"
// warning, many things rely on the fact that:
// - when failing it returns 0
// - it stops on first non-digit char
int charstar_to_int(const char * s)
{
int number = 0;
while (*s && isdigit(*s)) {
number = (number * 10) + (*s - '0');
s++;
}
return number;
}
off_t file_size(const char * path)
{
struct stat statr;
if (stat(path, &statr))
return -1;
else
return statr.st_size;
}
char * cat_file(const char * file, struct stat * s) {
char * buf;
int fd = open(file, O_RDONLY);
if (fd == -1) {
log_perror(file);
return NULL;
}
fstat(fd, s);
buf = malloc(s->st_size + 1);
if (read(fd, buf, s->st_size) != (ssize_t)s->st_size) {
close(fd);
free(buf);
log_perror(file);
return NULL;
}
buf[s->st_size] = '\0';
close(fd);
return buf;
}
int line_counts(const char * buf) {
const char * ptr = buf;
int line = 0;
while (ptr) {
line++;
ptr = strchr(ptr + 1, '\n');
}
return line;
}
int total_memory(void)
{
int value;
/* drakx powered: use /proc/kcore and rounds every 4 Mbytes */
value = 4 * ((int)((float)file_size("/proc/kcore") / 1024 / 1024 / 4 + 0.5));
log_message("Total Memory: %d Mbytes", value);
return value;
}
/* pixel's */
void * memdup(void *src, size_t size)
{
void * r;
r = malloc(size);
memcpy(r, src, size);
return r;
}
void add_to_env(char * name, char * value)
{
FILE* fakeenv = fopen("/tmp/env", "a");
if (fakeenv) {
char* e = asprintf_("%s=%s\n", name, value);
fwrite(e, 1, strlen(e), fakeenv);
free(e);
fclose(fakeenv);
} else
log_message("couldn't fopen to fake env");
}
char ** list_directory(char * direct)
{
char * tmp[50000]; /* in /dev there can be many many files.. */
int i = 0;
struct dirent *ep;
DIR *dp = opendir(direct);
while (dp && (ep = readdir(dp))) {
if (strcmp(ep->d_name, ".") && strcmp(ep->d_name, "..")) {
tmp[i] = strdup(ep->d_name);
i++;
}
}
if (dp)
closedir(dp);
tmp[i] = NULL;
return memdup(tmp, sizeof(char*) * (i+1));
}
int string_array_length(char ** a)
{
int i = 0;
if (!a)
return -1;
while (a && *a) {
a++;
i++;
}
return i;
}
int kernel_version(void)
{
struct utsname val;
if (uname(&val)) {
log_perror("uname failed");
return -1;
}
return charstar_to_int(val.release + 2);
}
char * asprintf_(const char *msg, ...)
{
int n;
char * s;
char dummy;
va_list arg_ptr;
va_start(arg_ptr, msg);
n = vsnprintf(&dummy, sizeof(dummy), msg, arg_ptr);
va_start(arg_ptr, msg);
if ((s = malloc(n + 1))) {
vsnprintf(s, n + 1, msg, arg_ptr);
va_end(arg_ptr);
return s;
}
va_end(arg_ptr);
return strdup("");
}
int scall_(int retval, char * msg, char * file, int line)
{
char tmp[5000];
sprintf(tmp, "%s(%s:%d) failed", msg, file, line);
if (retval)
log_perror(tmp);
return retval;
}
void lowercase(char *s)
{
int i = 0;
while (s[i]) {
s[i] = tolower(s[i]);
i++;
}
}
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