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90dddeb4cc
If you use the standard naming convention and end your subsurface filename in ".xml", we will now save away any previous xml file as a "bak" file before writing a new one. This can be useful for: - recovering from mistakes that deleted old dives - seeing what changed (ie you can do things like "diff -u xyz.bak xyz.xml") after doing some operation and saving the result. However, this does only a single level of backups - if you save twice, you will obviously have lost the original. I'd strongly encourage some external backup system in addition to this very simplistic backup. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
132 lines
2.5 KiB
C
132 lines
2.5 KiB
C
/* linux.c */
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/* implements Linux specific functions */
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#include "dive.h"
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#include "display.h"
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#include <string.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <fnmatch.h>
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#include <stdio.h>
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#include <fcntl.h>
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const char system_divelist_default_font[] = "Sans 8";
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const char *system_default_filename(void)
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{
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const char *home, *user;
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char *buffer;
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int len;
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home = getenv("HOME");
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user = getenv("LOGNAME");
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len = strlen(home) + strlen(user) + 17;
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buffer = malloc(len);
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snprintf(buffer, len, "%s/subsurface/%s.xml", home, user);
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return buffer;
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}
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int enumerate_devices (device_callback_t callback, void *userdata)
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{
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int index = -1;
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DIR *dp = NULL;
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struct dirent *ep = NULL;
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size_t i;
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const char *dirname = "/dev";
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const char *patterns[] = {
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"ttyUSB*",
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"ttyS*",
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"ttyACM*",
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"rfcomm*",
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NULL
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};
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FILE *file;
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char *line = NULL;
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char *fname;
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size_t len;
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dp = opendir (dirname);
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if (dp == NULL) {
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return -1;
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}
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while ((ep = readdir (dp)) != NULL) {
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for (i = 0; patterns[i] != NULL; ++i) {
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if (fnmatch (patterns[i], ep->d_name, 0) == 0) {
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char filename[1024];
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int n = snprintf (filename, sizeof (filename), "%s/%s", dirname, ep->d_name);
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if (n >= sizeof (filename)) {
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closedir (dp);
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return -1;
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}
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callback (filename, userdata);
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if (is_default_dive_computer_device(filename))
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index = i;
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break;
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}
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}
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}
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closedir (dp);
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file = fopen("/proc/mounts", "r");
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if (file == NULL)
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return index;
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while ((getline(&line, &len, file)) != -1) {
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char *ptr = strstr(line, "UEMISSDA");
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if (ptr) {
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char *end = ptr, *start = ptr;
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while (start > line && *start != ' ')
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start--;
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if (*start == ' ')
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start++;
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while (*end != ' ' && *end != '\0')
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end++;
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*end = '\0';
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fname = strdup(start);
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callback(fname, userdata);
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if (is_default_dive_computer_device(fname))
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index = i;
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i++;
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free((void *)fname);
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}
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}
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free(line);
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fclose(file);
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return index;
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}
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/* NOP wrappers to comform with windows.c */
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int subsurface_rename(const char *path, const char *newpath)
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{
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return rename(path, newpath);
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}
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int subsurface_open(const char *path, int oflags, mode_t mode)
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{
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return open(path, oflags, mode);
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}
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FILE *subsurface_fopen(const char *path, const char *mode)
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{
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return fopen(path, mode);
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}
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void *subsurface_opendir(const char *path)
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{
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return (void *)opendir(path);
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}
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struct zip *subsurface_zip_open_readonly(const char *path, int flags, int *errorp)
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{
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return zip_open(path, flags, errorp);
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}
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int subsurface_zip_close(struct zip *zip)
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{
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return zip_close(zip);
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}
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