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C code bug fixes

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- fix to buildin.c to prevent compiler from optimizing it out
- fix to realpath.c to handle case where 'path' is NULL

- fix to emacs.c (I think from dgk)

- fix to file.c (I think from gsf)
- fix to tail.c (I think from gsf)

- fix to code setting the malloc init hook (for vmalloc)

- changed memcpy to memmove in several places in sfio because src and dst
  might overlap

- fixes to macros like FILE_defined to fix header file issues
- fixes to expr.h to handle macro definition issue
This commit is contained in:
Lefteris Koutsofios 2020-02-12 13:09:47 -05:00
parent 0b36868c8c
commit e8b3274a65
17 changed files with 62 additions and 36 deletions
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10
src/lib/libcmd/tail.c
View file

@ -28,7 +28,7 @@
*/
static const char usage[] =
"+[-?\n@(#)$Id: tail (AT&T Research) 2012-06-19 $\n]"
"+[-?\n@(#)$Id: tail (AT&T Research) 2012-10-10 $\n]"
USAGE_LICENSE
"[+NAME?tail - output trailing portion of one or more files ]"
"[+DESCRIPTION?\btail\b copies one or more input files to standard output "
@ -424,7 +424,7 @@ b_tail(int argc, char** argv, Shbltin_t* context)
Tail_t* files;
Tv_t tv;
cmdinit(argc, argv, context, ERROR_CATALOG, 0);
cmdinit(argc, argv, context, ERROR_CATALOG, ERROR_NOTIFY);
for (;;)
{
switch (n = optget(argv, usage))
@ -639,7 +639,7 @@ b_tail(int argc, char** argv, Shbltin_t* context)
{
if (n)
n = 0;
else if (sh_checksig(context) || tvsleep(&tv, NiL))
else if (sh_checksig(context) || tvsleep(&tv, NiL) && sh_checksig(context))
{
error_info.errors++;
break;
@ -686,11 +686,13 @@ b_tail(int argc, char** argv, Shbltin_t* context)
{
i = 3;
while (--i && stat(fp->name, &st))
if (sh_checksig(context) || tvsleep(&tv, NiL))
if (sh_checksig(context))
{
error_info.errors++;
goto done;
}
else
tvsleep(&tv, NiL);
if (i && (fp->dev != st.st_dev || fp->ino != st.st_ino) && !init(fp, 0, 0, flags, &format))
{
if (!(flags & SILENT))