diff options
| -rw-r--r-- | ruby-runner.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ruby-runner.c b/ruby-runner.c index bbc2b78fa0..5731ea5287 100644 --- a/ruby-runner.c +++ b/ruby-runner.c @@ -25,12 +25,24 @@ insert_env_path(const char *envname, const char *paths, size_t size, int prepend char *e = malloc(size+n+1); size_t pos = 0; if (prepend) { + if (size == n || (size < n && env[size] == PATH_SEP)) { + if (strncmp(paths, env, size) == 0) { + free(e); + return; + } + } memcpy(e, paths, pos = size-1); e[pos++] = PATH_SEP; } memcpy(e+pos, env, n); pos += n; if (!prepend) { + if (size == n || (size < n && env[n-size-1] == PATH_SEP)) { + if (strncmp(paths, &env[n-size], size) == 0) { + free(e); + return; + } + } e[pos++] = PATH_SEP; memcpy(e+pos, paths, size-1); pos += size-1; |