make regex_old.c, ruserpass.c use __uc_malloc,

replace "buf = malloc(BUFSIZ); if (!buf) abort();" by __uc_malloc
elsewhere.

With last 7 patches together uclibc has 3k of static data total
with fairly big .config and with 2k being used for 2 x BUFSIZ stdio buffer:
   text    data     bss     dec     hex filename
    114     132    2048    2294     8f6 _stdio.o (ex lib/libc.a)
total data 593
total bss  3062

3 files changed, 10 insertions, 9 deletions

diff --git a/libc/misc/mntent/mntent.c b/libc/misc/mntent/mntent.c
index a5db799dc..a9024be88 100644
--- a/libc/misc/mntent/mntent.c
+++ b/libc/misc/mntent/mntent.c
@@ -7,6 +7,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <malloc.h>
 #include <mntent.h>
 #include <bits/uClibc_mutex.h>
 
@@ -84,9 +85,7 @@ struct mntent *getmntent(FILE * filep)
     __UCLIBC_MUTEX_LOCK(mylock);
     
     if (!buff) {
-            buff = malloc(BUFSIZ);
-		if (!buff)
-		    abort();
+            buff = __uc_malloc(BUFSIZ);
     }
     
     tmp = getmntent_r(filep, &mnt, buff, BUFSIZ);
diff --git a/libc/misc/regex/regex_old.c b/libc/misc/regex/regex_old.c
index cf5843ec5..997ee6f8b 100644
--- a/libc/misc/regex/regex_old.c
+++ b/libc/misc/regex/regex_old.c
@@ -35,6 +35,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <string.h>
+#include <malloc.h>
 #include <stdio.h>
 
 libc_hidden_proto(memset)
@@ -306,7 +307,7 @@ extern char *re_syntax_table;
 
 #  else /* not SYNTAX_TABLE */
 
-static char re_syntax_table[CHAR_SET_SIZE];
+static char *re_syntax_table; /* [CHAR_SET_SIZE] */
 
 static void init_syntax_once PARAMS ((void));
 
@@ -314,11 +315,13 @@ static void
 init_syntax_once ()
 {
    register int c;
-   static int done = 0;
+   static char done;
 
    if (done)
      return;
-   bzero (re_syntax_table, sizeof re_syntax_table);
+
+   re_syntax_table = __uc_malloc(CHAR_SET_SIZE);
+   bzero (re_syntax_table, CHAR_SET_SIZE);
 
    for (c = 0; c < CHAR_SET_SIZE; ++c)
      if (ISALNUM (c))
diff --git a/libc/misc/ttyent/getttyent.c b/libc/misc/ttyent/getttyent.c
index c9c68f1cc..e68eb8aa0 100644
--- a/libc/misc/ttyent/getttyent.c
+++ b/libc/misc/ttyent/getttyent.c
@@ -34,6 +34,7 @@
 #include <ctype.h>
 #include <string.h>
 #include <stdlib.h>
+#include <malloc.h>
 #ifdef __UCLIBC_HAS_THREADS__
 #include <pthread.h>
 #endif
@@ -132,9 +133,7 @@ struct ttyent * getttyent(void)
 	return (NULL);
 
     if (!line) {
-            line = malloc(BUFSIZ);
-		if (!line)
-		    abort();
+            line = __uc_malloc(BUFSIZ);
     }
 
 	__STDIO_ALWAYS_THREADLOCK(tf);