From 8adbd2914ccd44e0b1766690b514bda213b88740 Mon Sep 17 00:00:00 2001
From: John Snow <jsnow@redhat.com>
Date: Mon, 23 Nov 2015 17:38:39 +0100
Subject: [PATCH 20/27] qemu-io: Correct error messages
RH-Author: John Snow <jsnow@redhat.com>
Message-id: <1448300320-7772-21-git-send-email-jsnow@redhat.com>
Patchwork-id: 68446
O-Subject: [RHEL-7.3 qemu-kvm PATCH v2 20/21] qemu-io: Correct error messages
Bugzilla: 1272523
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit a9ecfa004f2dd83df612daac4a87dfc3a0feba28)
Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Conflicts:
qemu-io-cmds.c:
- Fixes to sigraise are not backported.
Signed-off-by: John Snow <jsnow@redhat.com>
---
qemu-io-cmds.c | 51 +++++++++++++++++++++++++++++++++------------------
1 file changed, 33 insertions(+), 18 deletions(-)
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 6ea027d..b41d6ee 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -134,6 +134,21 @@ static int64_t cvtnum(const char *s)
return ret;
}
+static void print_cvtnum_err(int64_t rc, const char *arg)
+{
+ switch (rc) {
+ case -EINVAL:
+ printf("Parsing error: non-numeric argument,"
+ " or extraneous/unrecognized suffix -- %s\n", arg);
+ break;
+ case -ERANGE:
+ printf("Parsing error: argument too large -- %s\n", arg);
+ break;
+ default:
+ printf("Parsing error: %s\n", arg);
+ }
+}
+
#define EXABYTES(x) ((long long)(x) << 60)
#define PETABYTES(x) ((long long)(x) << 50)
#define TERABYTES(x) ((long long)(x) << 40)
@@ -355,13 +370,13 @@ create_iovec(BlockDriverState *bs, QEMUIOVector *qiov, char **argv, int nr_iov,
len = cvtnum(arg);
if (len < 0) {
- printf("non-numeric length argument -- %s\n", arg);
+ print_cvtnum_err(len, arg);
goto fail;
}
/* should be SIZE_T_MAX, but that doesn't exist */
if (len > INT_MAX) {
- printf("too large length argument -- %s\n", arg);
+ printf("Argument '%s' exceeds maximum size %d\n", arg, INT_MAX);
goto fail;
}
@@ -688,7 +703,7 @@ static int read_f(BlockDriverState *bs, int argc, char **argv)
lflag = 1;
pattern_count = cvtnum(optarg);
if (pattern_count < 0) {
- printf("non-numeric length argument -- %s\n", optarg);
+ print_cvtnum_err(pattern_count, optarg);
return 0;
}
break;
@@ -709,7 +724,7 @@ static int read_f(BlockDriverState *bs, int argc, char **argv)
sflag = 1;
pattern_offset = cvtnum(optarg);
if (pattern_offset < 0) {
- printf("non-numeric length argument -- %s\n", optarg);
+ print_cvtnum_err(pattern_offset, optarg);
return 0;
}
break;
@@ -732,14 +747,14 @@ static int read_f(BlockDriverState *bs, int argc, char **argv)
offset = cvtnum(argv[optind]);
if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(offset, argv[optind]);
return 0;
}
optind++;
count = cvtnum(argv[optind]);
if (count < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(count, argv[optind]);
return 0;
} else if (count > SIZE_MAX) {
printf("length cannot exceed %" PRIu64 ", given %s\n",
@@ -894,7 +909,7 @@ static int readv_f(BlockDriverState *bs, int argc, char **argv)
offset = cvtnum(argv[optind]);
if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(offset, argv[optind]);
return 0;
}
optind++;
@@ -1043,14 +1058,14 @@ static int write_f(BlockDriverState *bs, int argc, char **argv)
offset = cvtnum(argv[optind]);
if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(offset, argv[optind]);
return 0;
}
optind++;
count = cvtnum(argv[optind]);
if (count < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(count, argv[optind]);
return 0;
} else if (count > SIZE_MAX) {
printf("length cannot exceed %" PRIu64 ", given %s\n",
@@ -1179,7 +1194,7 @@ static int writev_f(BlockDriverState *bs, int argc, char **argv)
offset = cvtnum(argv[optind]);
if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(offset, argv[optind]);
return 0;
}
optind++;
@@ -1306,7 +1321,7 @@ static int multiwrite_f(BlockDriverState *bs, int argc, char **argv)
/* Read the offset of the request */
offset = cvtnum(argv[optind]);
if (offset < 0) {
- printf("non-numeric offset argument -- %s\n", argv[optind]);
+ print_cvtnum_err(offset, argv[optind]);
goto out;
}
optind++;
@@ -1526,7 +1541,7 @@ static int aio_read_f(BlockDriverState *bs, int argc, char **argv)
ctx->offset = cvtnum(argv[optind]);
if (ctx->offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(ctx->offset, argv[optind]);
g_free(ctx);
return 0;
}
@@ -1618,7 +1633,7 @@ static int aio_write_f(BlockDriverState *bs, int argc, char **argv)
ctx->offset = cvtnum(argv[optind]);
if (ctx->offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(ctx->offset, argv[optind]);
g_free(ctx);
return 0;
}
@@ -1676,7 +1691,7 @@ static int truncate_f(BlockDriverState *bs, int argc, char **argv)
offset = cvtnum(argv[1]);
if (offset < 0) {
- printf("non-numeric truncate argument -- %s\n", argv[1]);
+ print_cvtnum_err(offset, argv[1]);
return 0;
}
@@ -1822,14 +1837,14 @@ static int discard_f(BlockDriverState *bs, int argc, char **argv)
offset = cvtnum(argv[optind]);
if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(offset, argv[optind]);
return 0;
}
optind++;
count = cvtnum(argv[optind]);
if (count < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
+ print_cvtnum_err(count, argv[optind]);
return 0;
} else if (count >> BDRV_SECTOR_BITS > INT_MAX) {
printf("length cannot exceed %"PRIu64", given %s\n",
@@ -1867,7 +1882,7 @@ static int alloc_f(BlockDriverState *bs, int argc, char **argv)
offset = cvtnum(argv[1]);
if (offset < 0) {
- printf("non-numeric offset argument -- %s\n", argv[1]);
+ print_cvtnum_err(offset, argv[1]);
return 0;
} else if (offset & 0x1ff) {
printf("offset %" PRId64 " is not sector aligned\n",
@@ -1878,7 +1893,7 @@ static int alloc_f(BlockDriverState *bs, int argc, char **argv)
if (argc == 3) {
nb_sectors = cvtnum(argv[2]);
if (nb_sectors < 0) {
- printf("non-numeric length argument -- %s\n", argv[2]);
+ print_cvtnum_err(nb_sectors, argv[2]);
return 0;
} else if (nb_sectors > INT_MAX) {
printf("length argument cannot exceed %d, given %s\n",
--
1.8.3.1