#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
#include <dirent.h>
#include <mntent.h>
#include <sys/stat.h>
}
else if(pid>0)
{
- char buf[256];
+ char *buf;
+ int bufsize;
int pos = 0;
int eof = 0;
Property *props = NULL;
close(pipe_fd[1]);
+ bufsize = 256;
+ buf = (char *)malloc(bufsize);
+
while(1)
{
int newline;
{
int len;
- len = read(pipe_fd[0], buf+pos, sizeof(buf)-pos);
+ len = read(pipe_fd[0], buf+pos, bufsize-pos);
if(len==0)
eof = 1;
else if(len==-1)
newline = i;
if(newline<0)
- break;
+ {
+ if(eof)
+ break;
+ bufsize *= 2;
+ buf = (char *)realloc(buf, bufsize);
+ continue;
+ }
if(parse_property(buf, newline, &prop)==0)
{
break;
}
+ free(buf);
+
if(props)
{
props[n_props].name = NULL;
free(mounted);
}
+int is_removable(char *devpath)
+{
+ char fnbuf[256];
+ int len;
+ char *ptr;
+ int fd;
+
+ len = snprintf(fnbuf, sizeof(fnbuf), "/sys%s", devpath);
+ if(len+10>=(int)sizeof(fnbuf))
+ return 0;
+
+ for(ptr=fnbuf+len; (ptr>fnbuf && *ptr!='/'); --ptr) ;
+ strcpy(ptr, "/removable");
+ fd = open(fnbuf, O_RDONLY);
+ if(fd!=-1)
+ {
+ char c;
+ read(fd, &c, 1);
+ close(fd);
+ if(c=='1')
+ {
+ if(verbosity>=2)
+ printf(" Removable\n");
+ return 1;
+ }
+ if(verbosity>=2)
+ printf(" Not removable\n");
+ }
+
+ return 0;
+}
+
+int check_buses(char *devpath, char **buses)
+{
+ char fnbuf[256];
+ char *ptr;
+ int len;
+
+ len = snprintf(fnbuf, sizeof(fnbuf), "/sys%s", devpath);
+ if(len+10>=(int)sizeof(fnbuf))
+ return 0;
+
+ for(ptr=fnbuf+len; ptr>fnbuf+12; --ptr)
+ if(*ptr=='/')
+ {
+ char linkbuf[256];
+ strcpy(ptr, "/subsystem");
+ len = readlink(fnbuf, linkbuf, sizeof(linkbuf)-1);
+ *ptr = 0;
+
+ if(len!=-1)
+ {
+ int i;
+ linkbuf[len] = 0;
+ for(; (len>0 && linkbuf[len-1]!='/'); --len) ;
+ if(verbosity>=2)
+ printf(" Subsystem of %s is %s\n", fnbuf, linkbuf+len);
+ for(i=0; buses[i]; ++i)
+ if(strcmp(linkbuf+len, buses[i])==0)
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+int can_mount(Property *props)
+{
+ static char *removable_buses[] = { "usb", "firewire", 0 };
+ char *devpath;
+ int i;
+
+ if(!match_property_value(props, "DEVTYPE", "partition"))
+ return 0;
+
+ devpath = get_property_value(props, "DEVPATH");
+ if(is_removable(devpath))
+ return 1;
+
+ for(i=0; removable_buses[i]; ++i)
+ if(match_property_value(props, "ID_BUS", removable_buses[i]))
+ return 1;
+
+ return check_buses(devpath, removable_buses);
+}
+
char **get_device_nodes(char *dirname)
{
DIR *dir;
printf(" %s = %s\n", props[j].name, props[j].value);
}
- if(match_property_value(props, "ID_BUS", "usb") && match_property_value(props, "DEVTYPE", "partition"))
+ if(can_mount(props))
{
char *devname;
char *label;
{
free(devices[i].node);
free(devices[i].label);
+ free(devices[i].description);
}
free(devices);
}