From: ewt <devnull@localhost>
Date: Fri, 30 May 1997 21:57:31 +0000 (+0000)
Subject: *** empty log message ***
X-Git-Tag: rpm-4.4-release~4061
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c5dcacd20144babd52181ea9bb34aa82f895b828;p=platform%2Fupstream%2Frpm.git

*** empty log message ***

CVS patchset: 1674
CVS date: 1997/05/30 21:57:31
---

diff --git a/lib/fs.c b/lib/fs.c
new file mode 100644
index 0000000..d660917
--- /dev/null
+++ b/lib/fs.c
@@ -0,0 +1,172 @@
+#include "miscfn.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "header.h"
+#include "intl.h"
+#include "rpmlib.h"
+
+struct fsinfo {
+    char * mntPoint;
+    dev_t dev;
+};
+
+static struct fsinfo * filesystems;
+static char ** fsnames;
+static int numFilesystems;
+
+static int getFilesystemList(void);
+
+static int getFilesystemList(void) {
+    our_mntent item, * itemptr;
+    FILE * mtab;
+    int numAlloced = 10;
+    int num = 0;
+    struct stat sb;
+    int i;
+
+    mtab = fopen(MOUNTED, "r");
+    if (!mtab) {
+	rpmError(RPMERR_MTAB, _("failed to open %s: %s"), MOUNTED, 
+		 strerror(errno));
+	return 1;
+    }
+
+    filesystems = malloc(sizeof(*filesystems) * (numAlloced + 1));
+
+    while (1) {
+	#if GETMNTENT_ONE
+	    /* this is Linux */
+	    itemptr = getmntent(mtab);
+	    if (!itemptr) break;
+	    item = *itemptr;
+	#elif GETMNTENT_TWO
+	    /* Solaris, maybe others */
+	    if (getmntent(mtab, &item)) break;
+	#endif
+
+	if (stat(item.our_mntdir, &sb)) {
+	    rpmError(RPMERR_STAT, "failed to stat %s: %s", item.our_mntdir,
+			strerror(errno));
+
+	    for (i = 0; i < num; i++)
+		free(filesystems[i].mntPoint);
+	    free(filesystems);
+
+	    filesystems = NULL;
+	}
+
+	if (num == numAlloced) {
+	    numAlloced += 10;
+	    filesystems = realloc(filesystems, 
+				  sizeof(*filesystems) * (numAlloced + 1));
+	}
+
+	filesystems[num].dev = sb.st_dev;
+	filesystems[num++].mntPoint = strdup(item.our_mntdir);
+    }
+
+    fclose(mtab);
+    filesystems[num].mntPoint = NULL;
+
+    fsnames = malloc(sizeof(*fsnames) * (num + 1));
+    for (i = 0; i < num; i++)
+	fsnames[i] = filesystems[i].mntPoint;
+    fsnames[num] = NULL;
+
+    numFilesystems = num;
+
+    return 0; 
+}
+
+int rpmGetFilesystemList(char *** listptr) {
+    if (!fsnames) 
+	if (getFilesystemList())
+	    return 1;
+
+    *listptr = fsnames;
+    return 0;
+}
+
+int rpmGetFilesystemUsage(char ** fileList, int_32 * fssizes, int numFiles,
+			  uint_32 ** usagesPtr, int flags) {
+    int_32 * usages;
+    int i, len, j;
+    char * buf, * dirName;
+    char * chptr;
+    int maxLen;
+    char * lastDir;
+    int lastfs = 0;
+    int lastDev = -1;		/* I hope nobody uses -1 for a st_dev */
+    struct stat sb;
+
+    if (!fsnames) 
+	if (getFilesystemList())
+	    return 1;
+
+    usages = calloc(numFilesystems, sizeof(usages));
+
+    maxLen = 0;
+    for (i = 0; i < numFiles; i++) {
+	len = strlen(fileList[i]);
+	if (maxLen < len) maxLen = len;
+    }
+    
+    buf = alloca(maxLen + 1);
+    lastDir = alloca(maxLen + 1);
+    dirName = alloca(maxLen + 1);
+    *lastDir = '\0';
+
+    for (i = 0; i < numFiles; i++) {
+	strcpy(buf, fileList[i]);
+	chptr = buf + strlen(buf) - 1;
+	while (*chptr != '/') chptr--;
+	if (chptr == buf)
+	    buf[1] = '\0';
+	else
+	    *chptr-- = '\0';
+
+	if (strcmp(lastDir, buf)) {
+	    strcpy(dirName, buf);
+	    chptr = dirName + strlen(dirName) - 1;
+	    while (stat(dirName, &sb)) {
+		if (errno != ENOENT) {
+		    rpmError(RPMERR_STAT, "failed to stat %s: %s", buf,
+				strerror(errno));
+		    free(usages);
+		    return 1;
+		}
+
+		while (*chptr != '/') chptr--;
+		*chptr-- = '\0';
+	    }
+
+	    if (lastDev != sb.st_dev) {
+		for (j = 0; j < numFilesystems; j++)
+		    if (filesystems[j].dev == sb.st_dev) break;
+
+		if (j == numFilesystems) {
+		    rpmError(RPMERR_BADDEV, 
+				"file %s is on an unknown device", buf);
+		    free(usages);
+		    return 1;
+		}
+
+		lastfs = j;
+		lastDev = sb.st_dev;
+	    }
+	}
+
+	strcpy(lastDir, buf);
+	usages[lastfs] += fssizes[i];
+    }
+
+    *usagesPtr = usages;
+
+    return 0;
+}