X-Git-Url: https://git.danieliu.xyz/?p=slock.git;a=blobdiff_plain;f=slock.c;h=3188ff7cd16dc9e87359b7aa257f016c30a2f173;hp=cf495551326acd9b63aa2feac5656f70a4f1a5ff;hb=3abbffa4934a62146e995ee7c2cf3ba50991b4ad;hpb=6a52a85a1ac87b29048863d599a8b0f0ee712482 diff --git a/slock.c b/slock.c index cf49555..3188ff7 100644 --- a/slock.c +++ b/slock.c @@ -60,28 +60,20 @@ die(const char *errstr, ...) #ifdef __linux__ #include -#include static void dontkillme(void) { int fd; - int length; - char value[64]; fd = open("/proc/self/oom_score_adj", O_WRONLY); - if (fd < 0 && errno == ENOENT) + if (fd < 0 && errno == ENOENT) { return; - - /* convert OOM_SCORE_ADJ_MIN to string for writing */ - length = snprintf(value, sizeof(value), "%d\n", OOM_SCORE_ADJ_MIN); - - /* bail on truncation */ - if (length >= sizeof(value)) - die("buffer too small\n"); - - if (fd < 0 || write(fd, value, length) != length || close(fd) != 0) - die("cannot disable the out-of-memory killer for this process (make sure to suid or sgid slock)\n"); + } + if (fd < 0 || write(fd, "-1000\n", (sizeof("-1000\n") - 1)) != + (sizeof("-1000\n") - 1) || close(fd) != 0) { + die("can't tame the oom-killer. is suid or sgid set?\n"); + } } #endif