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implement device probe in C

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It's an attempt to build auto-completion for the dive-computers
based on unpublished code inside libdivecomputer[1]

[1] -
http://git.libdivecomputer.org/?p=libdivecomputer.git;a=commitdiff;h=d44053a99435fb9fc1f408fb3f1629a54c938afc

Signed-off-by: Danilo Cesar Lemes de Paula <danilo.eu@gmail.com>
This commit is contained in:
Danilo Cesar Lemes de Paula 2013-09-16 18:04:42 -03:00
parent f5b33dede3
commit a8d33f80b0
7 changed files with 171 additions and 5 deletions
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46
linux.c
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@ -7,6 +7,9 @@
#endif
#include <gconf/gconf-client.h>
#include <string.h>
#include <sys/types.h>
#include <dirent.h>
#include <fnmatch.h>
const char system_divelist_default_font[] = "Sans 8";
@ -211,3 +214,46 @@ gboolean subsurface_launch_for_uri(const char* uri)
return TRUE;
}
#endif /* USE_GTK_UI */
int enumerate_devices (device_callback_t callback, void *userdata)
{
int index = -1;
DIR *dp = NULL;
struct dirent *ep = NULL;
size_t i;
const char *dirname = "/dev";
const char *patterns[] = {
"ttyUSB*",
"ttyS*",
"ttyACM*",
"rfcomm*",
NULL
};
dp = opendir (dirname);
if (dp == NULL) {
return -1;
}
while ((ep = readdir (dp)) != NULL) {
for (i = 0; patterns[i] != NULL; ++i) {
if (fnmatch (patterns[i], ep->d_name, 0) == 0) {
char filename[1024];
int n = snprintf (filename, sizeof (filename), "%s/%s", dirname, ep->d_name);
if (n >= sizeof (filename)) {
closedir (dp);
return -1;
}
callback (filename, userdata);
if (is_default_dive_computer_device(filename))
index = i;
break;
}
}
}
// TODO: list UEMIS mount point from /proc/mounts
closedir (dp);
return index;
}