From 1cab5444231a4a1fab9c3abb107d22af4eb09327 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 31 Oct 1997 22:55:02 +0000 Subject: Update. 1997-10-31 23:16 Ulrich Drepper * posix/glob.c (glob): If calling glob_in_dir for a list which was generated by a glob call disable GLOB_ERR since there might be non-directories in the list (PR203). * posix/glob.h (GLOB_ONLYDIR): New flag. (__GLOB_FLAGS): Add GLOB_ONLYDIR. * posix/glob.c: Define HAVE_D_TYPE if _DIRENT_HAVE_D_TYPE is defined. (glob): Add GLOB_ONLYDIR to recursive call to match dirname. (glob_in_dir) [HAVE_D_TYPE]: While reading directory entries test whether they are directories if GLOB_ONLYDIR flag is given. * manual/pattern.texi: Document GLOB_ONLYDIR. * misc/Makefile (tests): Add tst-fdset. * sysdeps/i386/bits/select.h: Rewrite asm macros to be cleaner. * sysdeps/unix/sysv/linux/Dist: Add xstatconv.c. * sysdeps/unix/sysv/linux/alpha/Dist: Likewise. * time/strptime.c (strptime_internal): In %y format, regard years >= 69 as of twentieth century, all other as of twenty-first. * time/tzset.c: Correct typo and little optimization. 1997-10-31 16:01 Ulrich Drepper * inet/getnetgrent.c: Allocate buffer dynamically if needed. Suggested by Joe Keane . 1997-10-31 Andreas Jaeger * io/ftw.h: Declare __ftw64_func_t and __nftw64_func_t only when __USE_FILE_OFFSET64 || __USE_LARGEFILE64 is true. 1997-10-30 05:47 Ulrich Drepper * misc/mntent.c: Don't use statically allocated buffer. Allocate it dynamically if necessary. * misc/efgcvt.c: Likewise. Patch by Joe Keane . * misc/mntent.c: Allow freeing of allocated buffer in __libc_subfreeres. * misc/efgcvt.c: Likewise. * misc/efgcvt.c: Call correct reentrant functions. Use better values for MAXDIG. * misc/qefgcvt.c: Use better values for MAXDIG. 1997-10-29 18:48 Richard Henderson * sysdeps/unix/sysv/linux/Makefile [io]: Add xstatconv. * sysdeps/unix/sysv/linux/alpha/xstatconv.c: New file. Convert between kernel_stat and the userland version indicated. * sysdeps/unix/sysv/linux/xstatconv.c: Likewise. * sysdeps/unix/sysv/linux/bits/stat.h: Define _STAT_VER_KERNEL. * sysdeps/unix/sysv/linux/fxstat.c: Defer to __xstat_conv. Alias to __*xstat64 if requested. * sysdeps/unix/sysv/linux/lxstat.c: Likewise. * sysdeps/unix/sysv/linux/xstat.c: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/stat.h: Add struct stat64. Increment _STAT_VER, and make struct stat the same. * sysdeps/unix/sysv/linux/alpha/bits/types.h: Add __ino64_t, and __off64_t. Reorganize. * sysdeps/unix/sysv/linux/alpha/kernel_stat.h: Add struct glibc2_stat for backward compatibility. Define XSTAT_IS_XSTAT64. * sysdeps/unix/sysv/linux/alpha/fxstat64.c: Empty file. * sysdeps/unix/sysv/linux/alpha/lxstat64.c: Likewise. * sysdeps/unix/sysv/linux/alpha/xstat64.c: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/dirent.h (struct dirent): For consistency, force d_ino to use ino_t and supply padding. 1997-10-29 18:47 Richard Henderson * libio/iofopen.c: Correct weak_alias. --- misc/mntent.c | 42 ++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 40 insertions(+), 2 deletions(-) (limited to 'misc/mntent.c') diff --git a/misc/mntent.c b/misc/mntent.c index 95f745ec78..b21f24e731 100644 --- a/misc/mntent.c +++ b/misc/mntent.c @@ -18,12 +18,50 @@ Boston, MA 02111-1307, USA. */ #include +#include +#include + +/* We don't want to allocate the static buffer all the time since it + is not always used (in fact, rather infrequently). Accept the + extra cost of a `malloc'. */ +static char *getmntent_buffer; + +/* This is the size of the buffer. This is really big. */ +#define BUFFER_SIZE 4096 + + +static void +allocate (void) +{ + getmntent_buffer = (char *) malloc (BUFFER_SIZE); +} + struct mntent * getmntent (FILE *stream) { - static char buf[8192]; static struct mntent m; + __libc_once_define (static, once); + __libc_once (once, allocate); - return __getmntent_r (stream, &m, buf, sizeof buf); + if (getmntent_buffer == NULL) + /* If no core is available we don't have a chance to run the + program successfully and so returning NULL is an acceptable + result. */ + return NULL; + + return __getmntent_r (stream, &m, getmntent_buffer, BUFFER_SIZE); +} + + +/* Make sure the memory is freed if the programs ends while in + memory-debugging mode and something actually was allocated. */ +static void +__attribute__ ((unused)) +free_mem (void) +{ + if (getmntent_buffer != NULL) + free (getmntent_buffer); } + +text_set_element (__libc_subfreeres, free_mem); -- cgit v1.2.3