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calibre-mount-helper: Refuse to mount anythin under /usr, /bin or /sbin

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Kovid Goyal 2011-11-02 18:12:34 +05:30
parent 4393d91aef
commit 8b21b4a4ad
1 changed files with 6 additions and 0 deletions
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6
src/calibre/devices/linux_mount_helper.c
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@ -44,6 +44,12 @@ int do_mount(const char *dev, const char *mp) {
fprintf(stderr, "Specified device node does not exist\n"); fprintf(stderr, "Specified device node does not exist\n");
return EXIT_FAILURE; return EXIT_FAILURE;
} }
if (strncmp("/usr", mp, 4) == 0 || strncmp("/bin", mp, 4) == 0 || strncmp("/sbin", mp, 5) == 0) {
fprintf(stderr, "Trying to mount to a mount point under /usr, /bin, /sbin is not allowed\n");
return EXIT_FAILURE;
}
if (!exists(mp)) { if (!exists(mp)) {
if (mkdir(mp, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) { if (mkdir(mp, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) {
errsv = errno; errsv = errno;