diff options
Diffstat (limited to 'term-utils/wall.c')
| -rw-r--r-- | term-utils/wall.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/term-utils/wall.c b/term-utils/wall.c index 588d3a9..125fde4 100644 --- a/term-utils/wall.c +++ b/term-utils/wall.c @@ -136,10 +136,17 @@ static gid_t get_group_gid(const char *group) static struct group_workspace *init_group_workspace(const char *group) { - struct group_workspace *buf = xmalloc(sizeof(struct group_workspace)); + struct group_workspace *buf; + long n; + + n = sysconf(_SC_NGROUPS_MAX); + if (n < 0 || n > INT_MAX - 1) + return NULL; + + buf = xmalloc(sizeof(struct group_workspace)); + buf->ngroups = n + 1; /* room for the primary gid */ buf->requested_group = get_group_gid(group); - buf->ngroups = sysconf(_SC_NGROUPS_MAX) + 1; /* room for the primary gid */ buf->groups = xcalloc(buf->ngroups, sizeof(*buf->groups)); return buf; @@ -324,10 +331,10 @@ static char *makemsg(char *fname, char **mvec, int mvecsz, if (print_banner == TRUE) { char *hostname = xgethostname(); - char *whom, *where, date[CTIME_BUFSIZ]; + char *whombuf, *whom, *where, date[CTIME_BUFSIZ]; time_t now; - whom = xgetlogin(); + whombuf = whom = xgetlogin(); if (!whom) { whom = "<someone>"; warn(_("cannot get passwd uid")); @@ -358,6 +365,7 @@ static char *makemsg(char *fname, char **mvec, int mvecsz, whom, hostname, where, date); fprintf(fs, "%-*.*s\007\007\r\n", TERM_WIDTH, TERM_WIDTH, lbuf); free(hostname); + free(whombuf); } fprintf(fs, "%*s\r\n", TERM_WIDTH, " "); |