Initial revision0_29alpha2

1 files changed, 103 insertions, 0 deletions

diff --git a/coreutils/df.c b/coreutils/df.c
new file mode 100644
index 000000000..a0692afc5
--- /dev/null
+++ b/coreutils/df.c
@@ -0,0 +1,103 @@
+#include "internal.h"
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/stat.h>
+#include <sys/vfs.h>
+
+const char      df_usage[] = "df [filesystem ...]\n"
+"\n"
+"\tPrint the filesystem space used and space available.\n";
+
+
+static int
+df(const char * device, const char * mountPoint)
+{
+        struct statfs   s;
+        long            blocks_used;
+        long            blocks_percent_used;
+
+        if ( statfs(mountPoint, &s) != 0 ) {
+                name_and_error(mountPoint);
+                return 1;
+        }
+        
+        if ( s.f_blocks > 0 ) {
+                blocks_used = s.f_blocks - s.f_bfree;
+                blocks_percent_used = (long)
+                 (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5);
+
+/*
+                printf(
+                 "%-20s %7ld %7ld  %7ld  %5ld%%   %s\n"
+                ,device
+                ,s.f_blocks
+                ,s.f_blocks - s.f_bfree
+                ,s.f_bavail
+                ,blocks_percent_used
+                ,mountPoint);
+*/
+
+                printf(
+                       "%-20s %7.0f %7.0f  %7.0f  %5ld%%   %s\n"
+                       ,device
+                       ,s.f_blocks * (s.f_bsize / 1024.0)
+                       ,(s.f_blocks - s.f_bfree)  * (s.f_bsize / 1024.0)
+                       ,s.f_bavail * (s.f_bsize / 1024.0)
+                       ,blocks_percent_used
+                       ,mountPoint);
+
+        }
+
+        return 0;
+}
+
+extern int
+df_main(struct FileInfo * i, int argc, char * * argv)
+{
+        static const char header[] =
+         "Filesystem         1024-blocks  Used Available Capacity Mounted on\n";
+        printf(header);
+
+        if ( argc > 1 ) {
+                struct mntent * mountEntry;
+                int                             status;
+
+                while ( argc > 1 ) {
+                        if ( (mountEntry = findMountPoint(argv[1], "/etc/mtab")) == 0
+                         && (mountEntry = findMountPoint(argv[1], "/proc/mounts")) == 0 )
+                        {
+                                fprintf(stderr, "%s: can't find mount point.\n"
+                                ,argv[1]);
+                                return 1;
+                        }
+                        status = df(mountEntry->mnt_fsname, mountEntry->mnt_dir);
+                        if ( status != 0 )
+                                return status;
+                        argc--;
+                        argv++;
+                }
+                return 0;
+        }
+        else {
+                FILE *          mountTable;
+                struct mntent * mountEntry;
+
+                if ( (mountTable = setmntent("/etc/mtab", "r")) == 0
+                 && (mountTable = setmntent("/proc/mounts", "r")) == 0
+                ) {
+                        name_and_error("/etc/mtab");
+                        return 1;
+                }
+
+                while ( (mountEntry = getmntent(mountTable)) != 0 ) {
+                        int status = df(
+                         mountEntry->mnt_fsname
+                        ,mountEntry->mnt_dir);
+                        if ( status != 0 )
+                                return status;
+                }
+                endmntent(mountTable);
+        }
+        
+        return 0;
+}