From: John Snow <jsnow@redhat.com>
To: qemu-block@nongnu.org
Cc: kwolf@redhat.com, John Snow <jsnow@redhat.com>,
qemu-devel@nongnu.org, mreitz@redhat.com
Subject: [Qemu-devel] [PATCH v4 3/3] qemu-io: Correct error messages
Date: Thu, 5 Nov 2015 18:53:04 -0500 [thread overview]
Message-ID: <1446767584-13132-4-git-send-email-jsnow@redhat.com> (raw)
In-Reply-To: <1446767584-13132-1-git-send-email-jsnow@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>
---
qemu-io-cmds.c | 53 ++++++++++++++++++++++++++++++++++-------------------
1 file changed, 34 insertions(+), 19 deletions(-)
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 238b1da..3dddae8 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -146,6 +146,21 @@ 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)
@@ -367,13 +382,13 @@ create_iovec(BlockBackend *blk, 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;
}
@@ -700,7 +715,7 @@ static int read_f(BlockBackend *blk, 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;
@@ -721,7 +736,7 @@ static int read_f(BlockBackend *blk, 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;
@@ -744,14 +759,14 @@ static int read_f(BlockBackend *blk, 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 %zu, given %s\n", SIZE_MAX, argv[optind]);
@@ -905,7 +920,7 @@ static int readv_f(BlockBackend *blk, 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++;
@@ -1054,14 +1069,14 @@ static int write_f(BlockBackend *blk, 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 %zu, given %s\n", SIZE_MAX, argv[optind]);
@@ -1189,7 +1204,7 @@ static int writev_f(BlockBackend *blk, 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++;
@@ -1316,7 +1331,7 @@ static int multiwrite_f(BlockBackend *blk, 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++;
@@ -1543,7 +1558,7 @@ static int aio_read_f(BlockBackend *blk, 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;
}
@@ -1638,7 +1653,7 @@ static int aio_write_f(BlockBackend *blk, 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;
}
@@ -1698,7 +1713,7 @@ static int truncate_f(BlockBackend *blk, 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;
}
@@ -1845,14 +1860,14 @@ static int discard_f(BlockBackend *blk, 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",
@@ -1891,7 +1906,7 @@ static int alloc_f(BlockBackend *blk, 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",
@@ -1902,7 +1917,7 @@ static int alloc_f(BlockBackend *blk, 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",
@@ -2247,7 +2262,7 @@ static int sigraise_f(BlockBackend *blk, int argc, char **argv)
{
int64_t sig = cvtnum(argv[1]);
if (sig < 0) {
- printf("non-numeric signal number argument -- %s\n", argv[1]);
+ print_cvtnum_err(sig, argv[1]);
return 0;
} else if (sig > NSIG) {
printf("signal argument '%s' is too large to be a valid signal\n",
--
2.4.3
next prev parent reply other threads:[~2015-11-05 23:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-05 23:53 [Qemu-devel] [PATCH v4 0/3] qemu-io: clean up cvtnum usage John Snow
2015-11-05 23:53 ` [Qemu-devel] [PATCH v4 1/3] qemu-io: fix cvtnum lval types John Snow
2015-11-05 23:53 ` [Qemu-devel] [PATCH v4 2/3] qemu-io: Check for trailing chars John Snow
2015-11-05 23:53 ` John Snow [this message]
2015-11-06 9:46 ` [Qemu-devel] [PATCH v4 0/3] qemu-io: clean up cvtnum usage Kevin Wolf
2015-11-06 19:01 ` John Snow
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