diff options
Diffstat (limited to 'libutil/gr_util.c')
| -rw-r--r-- | libutil/gr_util.c | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/libutil/gr_util.c b/libutil/gr_util.c index 465efd9..93b3eb2 100644 --- a/libutil/gr_util.c +++ b/libutil/gr_util.c @@ -141,7 +141,7 @@ gr_tmp(int mfd) errno = ENAMETOOLONG; return (-1); } - if ((tfd = mkstemp(tempname)) == -1) + if ((tfd = mkostemp(tempname, O_SYNC)) == -1) return (-1); if (mfd != -1) { while ((nr = read(mfd, buf, sizeof(buf))) > 0) @@ -318,10 +318,28 @@ gr_copy(int ffd, int tfd, const struct group *gr, struct group *old_gr) int gr_mkdb(void) { + int fd; + if (chmod(tempname, 0644) != 0) return (-1); - return (rename(tempname, group_file)); + if (rename(tempname, group_file) != 0) + return (-1); + + /* + * Make sure new group file is safe on disk. To improve performance we + * will call fsync() to the directory where file lies + */ + if ((fd = open(group_dir, O_RDONLY|O_DIRECTORY)) == -1) + return (-1); + + if (fsync(fd) != 0) { + close(fd); + return (-1); + } + + close(fd); + return(0); } /* @@ -351,8 +369,6 @@ gr_fini(void) int gr_equal(const struct group *gr1, const struct group *gr2) { - int gr1_ndx; - int gr2_ndx; /* Check that the non-member information is the same. */ if (gr1->gr_name == NULL || gr2->gr_name == NULL) { @@ -368,7 +384,8 @@ gr_equal(const struct group *gr1, const struct group *gr2) if (gr1->gr_gid != gr2->gr_gid) return (false); - /* Check all members in both groups. + /* + * Check all members in both groups. * getgrnam can return gr_mem with a pointer to NULL. * gr_dup and gr_add strip out this superfluous NULL, setting * gr_mem to NULL for no members. @@ -376,22 +393,18 @@ gr_equal(const struct group *gr1, const struct group *gr2) if (gr1->gr_mem != NULL && gr2->gr_mem != NULL) { int i; - for (i = 0; gr1->gr_mem[i] != NULL; i++) { + for (i = 0; + gr1->gr_mem[i] != NULL && gr2->gr_mem[i] != NULL; i++) { if (strcmp(gr1->gr_mem[i], gr2->gr_mem[i]) != 0) return (false); } - } - /* Count number of members in both structs */ - gr2_ndx = 0; - if (gr2->gr_mem != NULL) - for(; gr2->gr_mem[gr2_ndx] != NULL; gr2_ndx++) - /* empty */; - gr1_ndx = 0; - if (gr1->gr_mem != NULL) - for(; gr1->gr_mem[gr1_ndx] != NULL; gr1_ndx++) - /* empty */; - if (gr1_ndx != gr2_ndx) + if (gr1->gr_mem[i] != NULL || gr2->gr_mem[i] != NULL) + return (false); + } else if (gr1->gr_mem != NULL && gr1->gr_mem[0] != NULL) { + return (false); + } else if (gr2->gr_mem != NULL && gr2->gr_mem[0] != NULL) { return (false); + } return (true); } |