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4db4393e69
strlcat provides better protection against buffer overflows. Code is taken from the FreeBSD project source code. Specifically: https://github.com/freebsd/freebsd/blob/master/lib/libc/string/strlcat.c License appears to be acceptable, but needs to be checked by e.g. Debian. Step 1: 1. Add to netcdf-c/include/ncconfigure.h to use our version if not already available as determined by HAVE_STRLCAT in config.h. 2. Add the strlcat code to libdispatch/dstring.c 3. Turns out that strlcat was already defined in several places. So remove it from: ncgen3/genlib.c ncdump/dumplib.c 3. Define strlcat extern definition in ncconfigure.h. 4. Modify following directories to use strlcat: libdap2 libdap4 ncdap_test dap4_test Will do others in subsequent steps.
52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "netcdf.h"
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#include "t_srcdir.h"
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#define VAR "i32"
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#define ERRCODE 2
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#define ERR(e) {printf("Error: %s\n", nc_strerror(e)); exit(ERRCODE);}
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#undef DEBUG
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int
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main()
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{
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int ncid, varid;
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int retval;
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int i32[100];
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size_t start[1];
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size_t count[1];
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int ok = 1;
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const char* topsrcdir;
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char url[4096];
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topsrcdir = gettopsrcdir();
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strncpy(url,"file://",sizeof(url));
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strlcat(url,topsrcdir,sizeof(url));
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strlcat(url,"/ncdap_test/testdata3/test.02",sizeof(url));
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if ((retval = nc_open(url, 0, &ncid)))
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ERR(retval);
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if ((retval = nc_inq_varid(ncid, VAR, &varid)))
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ERR(retval);
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start[0] = 0;
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count[0] = 26;
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if ((retval = nc_get_vara_int(ncid, varid, start, count, i32)))
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if(retval != NC_EINVALCOORDS) {
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printf("nc_get_vara_int did not return NC_EINVALCOORDS");
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ok = 0;
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}
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nc_close(ncid);
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printf(ok?"*** PASS\n":"*** FAIL\n");
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return 0;
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}
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