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Replace realpath with readlink

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* Appears to be more modern and Debian Stretch requires it.
This commit is contained in:
Howard Hinnant
2017-11-30 17:17:28 -05:00
parent a3e8f399c4
commit c2e139ef53
1 changed files with 9 additions and 9 deletions
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18
src/tz.cpp
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@@ -337,11 +337,11 @@ discover_tz_dir()
if (!(lstat(timezone, &sb) == 0 && S_ISLNK(sb.st_mode) && sb.st_size > 0))
throw runtime_error("discover_tz_dir failed\n");
string result;
char rp[PATH_MAX];
if (realpath(timezone, rp))
char rp[PATH_MAX+1] = {};
if (readlink(timezone, rp, sizeof(rp)-1) > 0)
result = string(rp);
else
throw system_error(errno, system_category(), "realpath() failed");
throw system_error(errno, system_category(), "readlink() failed");
auto i = result.find("zoneinfo");
if (i == string::npos)
throw runtime_error("discover_tz_dir failed to find zoneinfo\n");
@@ -3652,11 +3652,11 @@ tzdb::current_zone() const
if (lstat(timezone, &sb) == 0 && S_ISLNK(sb.st_mode) && sb.st_size > 0) {
using namespace std;
string result;
char rp[PATH_MAX];
if (realpath(timezone, rp))
char rp[PATH_MAX+1] = {};
if (readlink(timezone, rp, sizeof(rp)-1) > 0)
result = string(rp);
else
throw system_error(errno, system_category(), "realpath() failed");
throw system_error(errno, system_category(), "readlink() failed");
const size_t pos = result.find(tz_dir);
if (pos != result.npos)
@@ -3680,11 +3680,11 @@ tzdb::current_zone() const
if (lstat(timezone, &sb) == 0 && S_ISLNK(sb.st_mode) && sb.st_size > 0) {
using namespace std;
string result;
char rp[PATH_MAX];
if (realpath(timezone, rp))
char rp[PATH_MAX+1] = {};
if (readlink(timezone, rp, sizeof(rp)-1) > 0)
result = string(rp);
else
throw system_error(errno, system_category(), "realpath() failed");
throw system_error(errno, system_category(), "readlink() failed");
const size_t pos = result.find(tz_dir);
if (pos != result.npos)