diff options
Diffstat (limited to 'kexec/fs2dt.c')
| -rw-r--r-- | kexec/fs2dt.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/kexec/fs2dt.c b/kexec/fs2dt.c index 07a5e2f..1a43058 100644 --- a/kexec/fs2dt.c +++ b/kexec/fs2dt.c @@ -568,7 +568,7 @@ static void putnode(void) struct dirent **namelist; int numlist, i; struct stat statbuf; - int plen; + int plen, ret; numlist = scandir(pathname, &namelist, 0, comparefunc); if (numlist < 0) @@ -670,10 +670,20 @@ static void putnode(void) * code can print 'I'm in purgatory' message. Currently only * pseries/hvcterminal is supported. */ - snprintf(filename, MAXPATH, "%sstdout-path", pathname); + ret = snprintf(filename, MAXPATH, "%sstdout-path", pathname); + if (ret < 0 || ret >= MAXPATH) { + fprintf(stderr, "snprintf failed: %s\n", strerror(errno)); + goto no_debug; + } + fd = open(filename, O_RDONLY); if (fd == -1) { - snprintf(filename, MAXPATH, "%slinux,stdout-path", pathname); + ret = snprintf(filename, MAXPATH, "%slinux,stdout-path", pathname); + if (ret < 0 || ret >= MAXPATH) { + fprintf(stderr, "snprintf failed: %s\n", strerror(errno)); + goto no_debug; + } + fd = open(filename, O_RDONLY); if (fd == -1) { printf("Unable to find %s[linux,]stdout-path, printing from purgatory is disabled\n", |