5c0faaf4f5
Help detecting Valgrind OOB reads and other issues. Conditional jump or move depends on uninitialised value(s) at 0x5452886: blobmsg_parse (blobmsg.c:203) by 0x400A8E: test_blobmsg (tests/test-blobmsg-parse.c:66) by 0x400A8E: main (tests/test-blobmsg-parse.c:82) Conditional jump or move depends on uninitialised value(s) at 0x545247F: blobmsg_check_name (blobmsg.c:39) by 0x545247F: blobmsg_check_attr_len (blobmsg.c:79) by 0x5452710: blobmsg_parse_array (blobmsg.c:159) by 0x400AB8: test_blobmsg (tests/test-blobmsg-parse.c:69) by 0x400AB8: main (tests/test-blobmsg-parse.c:82) Conditional jump or move depends on uninitialised value(s) at 0x54524A0: blobmsg_check_name (blobmsg.c:42) by 0x54524A0: blobmsg_check_attr_len (blobmsg.c:79) by 0x5452710: blobmsg_parse_array (blobmsg.c:159) by 0x400AB8: test_blobmsg (tests/test-blobmsg-parse.c:69) by 0x400AB8: main (tests/test-blobmsg-parse.c:82) Ref: http://lists.infradead.org/pipermail/openwrt-devel/2020-January/021204.html Signed-off-by: Petr Štetiar <ynezz@true.cz>
80 lines
1.5 KiB
C
80 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <libgen.h>
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#include "blobmsg.h"
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enum {
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FOO_MESSAGE,
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FOO_LIST,
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FOO_TESTDATA,
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__FOO_MAX
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};
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static const struct blobmsg_policy foo_policy[] = {
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[FOO_MESSAGE] = {
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.name = "message",
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.type = BLOBMSG_TYPE_STRING,
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},
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[FOO_LIST] = {
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.name = "list",
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.type = BLOBMSG_TYPE_ARRAY,
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},
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[FOO_TESTDATA] = {
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.name = "testdata",
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.type = BLOBMSG_TYPE_TABLE,
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},
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};
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static void dump_result(const char *fn, int r, const char *filename, struct blob_attr **tb)
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{
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fprintf(stdout, "%s: %s: %c%c%c (%d)\n", basename((char *) filename), fn,
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tb[FOO_MESSAGE] ? 'M' : '.',
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tb[FOO_LIST] ? 'L' : '.',
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tb[FOO_TESTDATA] ? 'T' : '.',
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r);
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}
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static void test_blobmsg(const char *filename)
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{
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#define BUF_LEN 256
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int r = 0;
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size_t len = 0;
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FILE *fd = NULL;
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char *buf = NULL;
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struct blob_attr *tb[__FOO_MAX];
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fd = fopen(filename, "r");
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if (!fd) {
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fprintf(stderr, "unable to open %s\n", filename);
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return;
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}
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buf = malloc(BUF_LEN+1);
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if (!buf)
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return;
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len = fread(buf, 1, BUF_LEN, fd);
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fclose(fd);
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r = blobmsg_parse(foo_policy, ARRAY_SIZE(foo_policy), tb, buf, len);
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dump_result("blobmsg_parse", r, filename, tb);
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r = blobmsg_parse_array(foo_policy, ARRAY_SIZE(foo_policy), tb, buf, len);
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dump_result("blobmsg_parse_array", r, filename, tb);
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free(buf);
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}
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int main(int argc, char *argv[])
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{
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <blobmsg.bin>\n", argv[0]);
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return 3;
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}
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test_blobmsg(argv[1]);
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return 0;
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}
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