diff --git a/src/utils/os.c b/src/utils/os.c
index e3f1fe2d42bb61d072940949a7ddee345836d4f6..2b6a51460a67f89122dbee5ec7d75d70e2b3fe82 100644 (file)
--- a/src/utils/os.c
+++ b/src/utils/os.c
#include <errno.h>
#include <sys/types.h>
#include <errno.h>
#include <sys/types.h>
+#include <sys/socket.h>
#include <sys/stat.h>
#include <dirent.h>
#include <sys/stat.h>
#include <dirent.h>
#include <unistd.h>
#include <libgen.h>
#include <unistd.h>
#include <libgen.h>
+#include <netdb.h>
#include <pwd.h>
/*
* public API
*/
#include <pwd.h>
/*
* public API
*/
+char *
+sdb_get_homedir(void)
+{
+ char *username = sdb_get_current_user();
+
+ struct passwd pw_entry;
+ struct passwd *result = NULL;
+
+ char buf[4096];
+
+ int status;
+
+ if (username) {
+ memset(&pw_entry, 0, sizeof(pw_entry));
+ status = getpwnam_r(username, &pw_entry, buf, sizeof(buf), &result);
+ }
+ else
+ status = -1;
+
+ if (status || (! result)) {
+ char errbuf[1024];
+ sdb_log(SDB_LOG_WARNING, "os: Failed to determine home directory "
+ "for user %s: %s", username,
+ sdb_strerror(errno, errbuf, sizeof(errbuf)));
+ free(username);
+ return NULL;
+ }
+ free(username);
+ return strdup(result->pw_dir);
+} /* sdb_get_homedir */
+
+char *
+sdb_realpath(const char *path)
+{
+ if (! path)
+ return NULL;
+
+ if ((strlen(path) >= 2) && (path[0] == '~') && (path[1] == '/')) {
+ char *homedir = sdb_get_homedir();
+ char tmp[(homedir ? strlen(homedir) : 0) + strlen(path)];
+ char *ret;
+
+ if (! homedir)
+ return NULL;
+
+ snprintf(tmp, sizeof(tmp), "%s/%s", homedir, path + 2);
+ ret = realpath(tmp, NULL);
+ free(homedir);
+ return ret;
+ }
+
+ return realpath(path, NULL);
+} /* sdb_realpath */
+
int
sdb_mkdir_all(const char *pathname, mode_t mode)
{
int
sdb_mkdir_all(const char *pathname, mode_t mode)
{
uid_t uid;
uid_t uid;
- char buf[1024];
+ char buf[4096];
int status;
uid = geteuid();
int status;
uid = geteuid();
return strdup(result->pw_name);
} /* sdb_get_current_user */
return strdup(result->pw_name);
} /* sdb_get_current_user */
+int
+sdb_select(int fd, int type)
+{
+ fd_set fds;
+ fd_set *readfds = NULL;
+ fd_set *writefds = NULL;
+ fd_set *exceptfds = NULL;
+
+ if (fd < 0) {
+ errno = EBADF;
+ return -1;
+ }
+
+ FD_ZERO(&fds);
+
+ switch (type) {
+ case SDB_SELECTIN:
+ readfds = &fds;
+ break;
+ case SDB_SELECTOUT:
+ writefds = &fds;
+ break;
+ case SDB_SELECTERR:
+ exceptfds = &fds;
+ break;
+ default:
+ errno = EINVAL;
+ return -1;
+ }
+
+ FD_SET(fd, &fds);
+
+ while (42) {
+ int n;
+ errno = 0;
+ n = select(fd + 1, readfds, writefds, exceptfds, NULL);
+
+ if ((n < 0) && (errno != EINTR))
+ return n;
+ if (n > 0)
+ break;
+ }
+ return 0;
+} /* sdb_select */
+
+ssize_t
+sdb_write(int fd, size_t msg_len, const void *msg)
+{
+ const char *buf;
+ size_t len;
+
+ if ((fd < 0) || (msg_len && (! msg)))
+ return -1;
+ if (! msg_len)
+ return 0;
+
+ buf = msg;
+ len = msg_len;
+ while (len > 0) {
+ ssize_t status;
+
+ if (sdb_select(fd, SDB_SELECTOUT))
+ return -1;
+
+ errno = 0;
+ status = write(fd, buf, len);
+ if (status < 0) {
+ if ((errno == EAGAIN) || (errno == EWOULDBLOCK))
+ continue;
+ if (errno == EINTR)
+ continue;
+
+ return status;
+ }
+
+ len -= (size_t)status;
+ buf += status;
+ }
+
+ return (ssize_t)msg_len;
+} /* sdb_write */
+
+int
+sdb_resolve(int network, const char *address, struct addrinfo **res)
+{
+ struct addrinfo ai_hints;
+ const char *host;
+ char *port;
+ int status;
+
+ if (! res) {
+ errno = EINVAL;
+ return EAI_SYSTEM;
+ }
+
+ if (address) {
+ host = address;
+ port = strrchr(host, ':');
+ if (port) {
+ *port = '\0';
+ ++port;
+ }
+ if (! *host)
+ host = NULL;
+ }
+ else {
+ host = NULL;
+ port = NULL;
+ }
+
+ memset(&ai_hints, 0, sizeof(ai_hints));
+ ai_hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
+ if (network & SDB_NET_V4)
+ ai_hints.ai_family = AF_INET;
+ else if (network & SDB_NET_V6)
+ ai_hints.ai_family = AF_INET6;
+ else
+ ai_hints.ai_family = AF_UNSPEC;
+
+ if ((network & SDB_NET_IP) == SDB_NET_IP) {
+ ai_hints.ai_socktype = 0;
+ ai_hints.ai_protocol = 0;
+ }
+ else if (network & SDB_NET_TCP) {
+ ai_hints.ai_socktype = SOCK_STREAM;
+ ai_hints.ai_protocol = IPPROTO_TCP;
+ }
+ else if (network & SDB_NET_UDP) {
+ ai_hints.ai_socktype = SOCK_DGRAM;
+ ai_hints.ai_protocol = IPPROTO_UDP;
+ }
+
+ status = getaddrinfo(host, port, &ai_hints, res);
+ if (port) {
+ --port;
+ *port = ':';
+ }
+ return status;
+} /* sdb_resolve */
+
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */