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author | delphij <delphij@FreeBSD.org> | 2015-07-15 19:21:26 +0000 |
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committer | delphij <delphij@FreeBSD.org> | 2015-07-15 19:21:26 +0000 |
commit | 2a25cee78ab1d37e7d2bc40ae675646974d99f56 (patch) | |
tree | b0302ac4be59e104f4e1e54014561a1389397192 /contrib/ntp/ntpd/rc_cmdlength.c | |
parent | a0741a75537b2e0514472ac3b28afc55a7846c30 (diff) | |
download | FreeBSD-src-2a25cee78ab1d37e7d2bc40ae675646974d99f56.zip FreeBSD-src-2a25cee78ab1d37e7d2bc40ae675646974d99f56.tar.gz |
MFC r280849,280915-280916,281015-281016,282097,282408,282415,283542,
284864,285169-285170,285435:
ntp 4.2.8p3.
Relnotes: yes
Approved by: re (?)
Diffstat (limited to 'contrib/ntp/ntpd/rc_cmdlength.c')
-rw-r--r-- | contrib/ntp/ntpd/rc_cmdlength.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/contrib/ntp/ntpd/rc_cmdlength.c b/contrib/ntp/ntpd/rc_cmdlength.c new file mode 100644 index 0000000..2807d2a --- /dev/null +++ b/contrib/ntp/ntpd/rc_cmdlength.c @@ -0,0 +1,35 @@ +#include <config.h> + +#if HAVE_UNISTD_H +# include <unistd.h> +#endif + + +/* Bug 2853 */ +/* evaluate the length of the command sequence. This breaks at the first + * char that is not >= SPACE and <= 127 after trimming from the right. + */ +size_t +remoteconfig_cmdlength( + const char *src_buf, + const char *src_end + ) +{ + const char *scan; + unsigned char ch; + + /* trim whitespace & garbage from the right */ + while (src_end != src_buf) { + ch = src_end[-1]; + if (ch > ' ' && ch < 128) + break; + --src_end; + } + /* now do a forward scan */ + for (scan = src_buf; scan != src_end; ++scan) { + ch = scan[0]; + if ((ch < ' ' || ch >= 128) && ch != '\t') + break; + } + return (size_t)(scan - src_buf); +} |