diff options
Diffstat (limited to 'support/nfs')
| -rw-r--r-- | support/nfs/nfs_mntent.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/support/nfs/nfs_mntent.c b/support/nfs/nfs_mntent.c index a5216fc..a2118a2 100644 --- a/support/nfs/nfs_mntent.c +++ b/support/nfs/nfs_mntent.c @@ -12,6 +12,7 @@ #include <string.h> /* for index */ #include <ctype.h> /* for isdigit */ #include <sys/stat.h> /* for umask */ +#include <unistd.h> /* for ftruncate */ #include "nfs_mntent.h" #include "nls.h" @@ -127,9 +128,11 @@ int nfs_addmntent (mntFILE *mfp, struct mntent *mnt) { char *m1, *m2, *m3, *m4; int res; + off_t length; if (fseek (mfp->mntent_fp, 0, SEEK_END)) return 1; /* failure */ + length = ftell(mfp->mntent_fp); m1 = mangle(mnt->mnt_fsname); m2 = mangle(mnt->mnt_dir); @@ -143,6 +146,12 @@ nfs_addmntent (mntFILE *mfp, struct mntent *mnt) { free(m2); free(m3); free(m4); + if (res >= 0) { + res = fflush(mfp->mntent_fp); + if (res < 0) + /* Avoid leaving a corrupt mtab file */ + ftruncate(fileno(mfp->mntent_fp), length); + } return (res < 0) ? 1 : 0; } |