diff options
Diffstat (limited to 'contrib/ntp/tests/libntp/g_msyslog.cpp')
| -rw-r--r-- | contrib/ntp/tests/libntp/g_msyslog.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/contrib/ntp/tests/libntp/g_msyslog.cpp b/contrib/ntp/tests/libntp/g_msyslog.cpp new file mode 100644 index 0000000..273600d --- /dev/null +++ b/contrib/ntp/tests/libntp/g_msyslog.cpp @@ -0,0 +1,137 @@ +#include "g_libntptest.h" + +extern "C" { +#include <stdio.h> +#include <string.h> +#include <errno.h> +#ifndef VSNPRINTF_PERCENT_M +// format_errmsg() is normally private to msyslog.c +void format_errmsg (char *, size_t, const char *, int); +#endif +}; + +class msyslogTest : public libntptest { +}; + +// msnprintf() +TEST_F(msyslogTest, msnprintf) +{ +#define FMT_PREFIX "msyslog.cpp ENOENT: " + char exp_buf[512]; + char act_buf[512]; + int exp_cnt; + int act_cnt; + + exp_cnt = snprintf(exp_buf, sizeof(exp_buf), FMT_PREFIX "%s", + strerror(ENOENT)); + errno = ENOENT; + act_cnt = msnprintf(act_buf, sizeof(act_buf), FMT_PREFIX "%m"); + EXPECT_EQ(exp_cnt, act_cnt); + EXPECT_STREQ(exp_buf, act_buf); +} + +TEST_F(msyslogTest, msnprintfLiteralPercentm) +{ + char exp_buf[32]; + char act_buf[32]; + int exp_cnt; + int act_cnt; + + exp_cnt = snprintf(exp_buf, sizeof(exp_buf), "%%m"); + errno = ENOENT; + act_cnt = msnprintf(act_buf, sizeof(act_buf), "%%m"); + EXPECT_EQ(exp_cnt, act_cnt); + EXPECT_STREQ(exp_buf, act_buf); +} + +TEST_F(msyslogTest, msnprintfBackslashLiteralPercentm) +{ + char exp_buf[32]; + char act_buf[32]; + int exp_cnt; + int act_cnt; + + exp_cnt = snprintf(exp_buf, sizeof(exp_buf), "\%%m"); + errno = ENOENT; + act_cnt = msnprintf(act_buf, sizeof(act_buf), "\%%m"); + EXPECT_EQ(exp_cnt, act_cnt); + EXPECT_STREQ(exp_buf, act_buf); +} + +TEST_F(msyslogTest, msnprintfBackslashPercent) +{ + char exp_buf[32]; + char act_buf[32]; + int exp_cnt; + int act_cnt; + + exp_cnt = snprintf(exp_buf, sizeof(exp_buf), "\%s", + strerror(ENOENT)); + errno = ENOENT; + act_cnt = msnprintf(act_buf, sizeof(act_buf), "\%m"); + EXPECT_EQ(exp_cnt, act_cnt); + EXPECT_STREQ(exp_buf, act_buf); +} + +TEST_F(msyslogTest, msnprintfHangingPercent) +{ + static char fmt[] = "percent then nul term then non-nul %\0oops!"; + char exp_buf[64]; + char act_buf[64]; + int exp_cnt; + int act_cnt; + + ZERO(exp_buf); + ZERO(act_buf); + exp_cnt = snprintf(exp_buf, sizeof(exp_buf), fmt); + act_cnt = msnprintf(act_buf, sizeof(act_buf), fmt); + EXPECT_EQ(exp_cnt, act_cnt); + EXPECT_STREQ(exp_buf, act_buf); + EXPECT_STREQ("", act_buf + 1 + strlen(act_buf)); +} + +#ifndef VSNPRINTF_PERCENT_M +TEST_F(msyslogTest, format_errmsgHangingPercent) +{ + static char fmt[] = "percent then nul term then non-nul %\0oops!"; + char act_buf[64]; + + ZERO(act_buf); + format_errmsg(act_buf, sizeof(act_buf), fmt, ENOENT); + EXPECT_STREQ(fmt, act_buf); + EXPECT_STREQ("", act_buf + 1 + strlen(act_buf)); +} +#endif + +TEST_F(msyslogTest, msnprintfNullTarget) +{ + int exp_cnt; + int act_cnt; + + exp_cnt = snprintf(NULL, 0, "%d", 123); + errno = ENOENT; + act_cnt = msnprintf(NULL, 0, "%d", 123); + EXPECT_EQ(exp_cnt, act_cnt); +} + +TEST_F(msyslogTest, msnprintfTruncate) +{ + char undist[] = "undisturbed"; + char exp_buf[512]; + char act_buf[512]; + int exp_cnt; + int act_cnt; + + memcpy(exp_buf + 3, undist, sizeof(undist)); + memcpy(act_buf + 3, undist, sizeof(undist)); + exp_cnt = snprintf(exp_buf, 3, "%s", strerror(ENOENT)); + errno = ENOENT; + act_cnt = msnprintf(act_buf, 3, "%m"); + EXPECT_EQ('\0', exp_buf[2]); + EXPECT_EQ('\0', act_buf[2]); + EXPECT_TRUE(act_cnt > 0); + EXPECT_EQ(exp_cnt, act_cnt); + EXPECT_STREQ(exp_buf, act_buf); + EXPECT_STREQ(exp_buf + 3, undist); + EXPECT_STREQ(act_buf + 3, undist); +} |
