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GET /api/patches/94094/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 94094,
    "url": "https://patches.dpdk.org/api/patches/94094/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20210612230519.21614-1-xuemingl@nvidia.com/",
    "project": {
        "id": 1,
        "url": "https://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<20210612230519.21614-1-xuemingl@nvidia.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20210612230519.21614-1-xuemingl@nvidia.com",
    "date": "2021-06-12T23:05:19",
    "name": "[v1] eal: save error in string copy",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "3ca4248e6ba4eb3e4821a2fa6df29aa9c105d430",
    "submitter": {
        "id": 1904,
        "url": "https://patches.dpdk.org/api/people/1904/?format=api",
        "name": "Xueming Li",
        "email": "xuemingl@nvidia.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20210612230519.21614-1-xuemingl@nvidia.com/mbox/",
    "series": [
        {
            "id": 17304,
            "url": "https://patches.dpdk.org/api/series/17304/?format=api",
            "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=17304",
            "date": "2021-06-12T23:05:19",
            "name": "[v1] eal: save error in string copy",
            "version": 1,
            "mbox": "https://patches.dpdk.org/series/17304/mbox/"
        }
    ],
    "comments": "https://patches.dpdk.org/api/patches/94094/comments/",
    "check": "fail",
    "checks": "https://patches.dpdk.org/api/patches/94094/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
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        "From": "Xueming Li <xuemingl@nvidia.com>",
        "To": "",
        "CC": "Thomas Monjalon <thomas@monjalon.net>, <dev@dpdk.org>,\n <xuemingl@nvidia.com>, Jerin Jacob <jerinj@marvell.com>, Sunil Kumar Kori\n <skori@marvell.com>, Kiran Kumar K <kirankumark@marvell.com>, \"Nithin\n Dabilpuram\" <ndabilpuram@marvell.com>",
        "Date": "Sun, 13 Jun 2021 07:05:19 +0800",
        "Message-ID": "<20210612230519.21614-1-xuemingl@nvidia.com>",
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        "Subject": "[dpdk-dev] [v1] eal: save error in string copy",
        "X-BeenThere": "dev@dpdk.org",
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        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "From: Thomas Monjalon <thomas@monjalon.net>\n\nThe string copy api rte_strscpy() doesn't set rte_errno during failures,\ninstead it just return negative error number.\n\nSets rte_errrno if the destination buffer is too small.\n\nSigned-off-by: Thomas Monjalon <thomas@monjalon.net>\nSigned-off-by: Xueming Li <xuemingl@nvidia.com>\n---\n lib/eal/common/eal_common_string_fns.c |  4 +++-\n lib/eal/common/eal_common_trace.c      |  1 -\n lib/eal/include/rte_string_fns.h       |  5 ++---\n lib/graph/node.c                       | 12 +++---------\n 4 files changed, 8 insertions(+), 14 deletions(-)",
    "diff": "diff --git a/lib/eal/common/eal_common_string_fns.c b/lib/eal/common/eal_common_string_fns.c\nindex 60c5dd66f9..ddd1891656 100644\n--- a/lib/eal/common/eal_common_string_fns.c\n+++ b/lib/eal/common/eal_common_string_fns.c\n@@ -8,6 +8,7 @@\n #include <errno.h>\n \n #include <rte_string_fns.h>\n+#include <rte_errno.h>\n \n /* split string into tokens */\n int\n@@ -62,5 +63,6 @@ rte_strscpy(char *dst, const char *src, size_t dsize)\n \t/* Not enough room in dst, set NUL and return error. */\n \tif (res != 0)\n \t\tdst[res - 1] = '\\0';\n-\treturn -E2BIG;\n+\trte_errno = E2BIG;\n+\treturn -rte_errno;\n }\ndiff --git a/lib/eal/common/eal_common_trace.c b/lib/eal/common/eal_common_trace.c\nindex 24e27387b1..7bff1cd2ce 100644\n--- a/lib/eal/common/eal_common_trace.c\n+++ b/lib/eal/common/eal_common_trace.c\n@@ -500,7 +500,6 @@ __rte_trace_point_register(rte_trace_point_t *handle, const char *name,\n \t/* Initialize the trace point */\n \tif (rte_strscpy(tp->name, name, TRACE_POINT_NAME_SIZE) < 0) {\n \t\ttrace_err(\"name is too long\");\n-\t\trte_errno = E2BIG;\n \t\tgoto free;\n \t}\n \ndiff --git a/lib/eal/include/rte_string_fns.h b/lib/eal/include/rte_string_fns.h\nindex 8bac8243c9..bb43b2cba3 100644\n--- a/lib/eal/include/rte_string_fns.h\n+++ b/lib/eal/include/rte_string_fns.h\n@@ -97,8 +97,6 @@ rte_strlcat(char *dst, const char *src, size_t size)\n  * Copy string src to buffer dst of size dsize.\n  * At most dsize-1 chars will be copied.\n  * Always NUL-terminates, unless (dsize == 0).\n- * Returns number of bytes copied (terminating NUL-byte excluded) on success ;\n- * negative errno on error.\n  *\n  * @param dst\n  *   The destination string.\n@@ -110,8 +108,9 @@ rte_strlcat(char *dst, const char *src, size_t size)\n  *   Length in bytes of the destination buffer.\n  *\n  * @return\n- *   The number of bytes copied on success\n+ *   The number of bytes copied (terminating NUL-byte excluded) on success.\n  *   -E2BIG if the destination buffer is too small.\n+ *   rte_errno is set.\n  */\n ssize_t\n rte_strscpy(char *dst, const char *src, size_t dsize);\ndiff --git a/lib/graph/node.c b/lib/graph/node.c\nindex 873c9ab16d..86ec4316f9 100644\n--- a/lib/graph/node.c\n+++ b/lib/graph/node.c\n@@ -86,10 +86,8 @@ __rte_node_register(const struct rte_node_register *reg)\n \t}\n \n \t/* Initialize the node */\n-\tif (rte_strscpy(node->name, reg->name, RTE_NODE_NAMESIZE) < 0) {\n-\t\trte_errno = E2BIG;\n+\tif (rte_strscpy(node->name, reg->name, RTE_NODE_NAMESIZE) < 0)\n \t\tgoto free;\n-\t}\n \tnode->flags = reg->flags;\n \tnode->process = reg->process;\n \tnode->init = reg->init;\n@@ -98,10 +96,8 @@ __rte_node_register(const struct rte_node_register *reg)\n \tnode->parent_id = reg->parent_id;\n \tfor (i = 0; i < reg->nb_edges; i++) {\n \t\tif (rte_strscpy(node->next_nodes[i], reg->next_nodes[i],\n-\t\t\t\tRTE_NODE_NAMESIZE) < 0) {\n-\t\t\trte_errno = E2BIG;\n+\t\t\t\tRTE_NODE_NAMESIZE) < 0)\n \t\t\tgoto free;\n-\t\t}\n \t}\n \n \tnode->id = node_id++;\n@@ -278,10 +274,8 @@ edge_update(struct node *node, struct node *prev, rte_edge_t from,\n \t/* Update the new nodes name */\n \tfor (i = from; i < max_edges; i++, count++) {\n \t\tif (rte_strscpy(node->next_nodes[i], next_nodes[count],\n-\t\t\t\tRTE_NODE_NAMESIZE) < 0) {\n-\t\t\trte_errno = E2BIG;\n+\t\t\t\tRTE_NODE_NAMESIZE) < 0)\n \t\t\tgoto restore;\n-\t\t}\n \t}\n restore:\n \t/* Update the linked list to point new node address in prev node */\n",
    "prefixes": [
        "v1"
    ]
}