libreplace: added replacements for dprintf() and vdprintf()

[abartlet/samba.git/.git] / lib / replace / replace.c

diff --git a/lib/replace/replace.c b/lib/replace/replace.c
index 4aa84b886d1ccd0c335b3b3666ff8e006543c00a..6f0851da7cb371bca650b907017da0545c32ab56 100644 (file)
--- a/lib/replace/replace.c
+++ b/lib/replace/replace.c
@@ -2,6 +2,7 @@
    Unix SMB/CIFS implementation.
    replacement routines for broken systems
    Copyright (C) Andrew Tridgell 1992-1998
+   Copyright (C) Jelmer Vernooij 2005-2008
 
      ** NOTE! The following LGPL license applies to the replace
      ** library. This does NOT imply that all of Samba is released
@@ -30,6 +31,10 @@
 #include "system/locale.h"
 #include "system/wait.h"
 
+#ifdef _WIN32
+#define mkdir(d,m) _mkdir(d)
+#endif
+
 void replace_dummy(void);
 void replace_dummy(void) {}
 
@@ -354,7 +359,7 @@ char *rep_strndup(const char *s, size_t n)
 }
 #endif
 
-#ifndef HAVE_WAITPID
+#if !defined(HAVE_WAITPID) && defined(HAVE_WAIT4)
 int rep_waitpid(pid_t pid,int *status,int options)
 {
   return wait4(pid, status, options, NULL);
@@ -367,7 +372,8 @@ int rep_seteuid(uid_t euid)
 #ifdef HAVE_SETRESUID
        return setresuid(-1, euid, -1);
 #else
-#  error "You need a seteuid function"
+       errno = ENOSYS;
+       return -1;
 #endif
 }
 #endif
@@ -378,7 +384,8 @@ int rep_setegid(gid_t egid)
 #ifdef HAVE_SETRESGID
        return setresgid(-1, egid, -1);
 #else
-#  error "You need a setegid function"
+       errno = ENOSYS;
+       return -1;
 #endif
 }
 #endif
@@ -623,3 +630,108 @@ int rep_dup2(int oldfd, int newfd)
 }
 #endif
 
+#ifndef HAVE_CHOWN
+/**
+chown isn't used much but OS/2 doesn't have it
+**/
+int rep_chown(const char *fname, uid_t uid, gid_t gid)
+{
+       errno = ENOSYS;
+       return -1;
+}
+#endif
+
+#ifndef HAVE_LINK
+int rep_link(const char *oldpath, const char *newpath)
+{
+       errno = ENOSYS;
+       return -1;
+}
+#endif
+
+#ifndef HAVE_READLINK
+int rep_readlink(const char *path, char *buf, size_t bufsiz)
+{
+       errno = ENOSYS;
+       return -1;
+}
+#endif
+
+#ifndef HAVE_SYMLINK
+int rep_symlink(const char *oldpath, const char *newpath)
+{
+       errno = ENOSYS;
+       return -1;
+}
+#endif
+
+#ifndef HAVE_LCHOWN
+int rep_lchown(const char *fname,uid_t uid,gid_t gid)
+{
+       errno = ENOSYS;
+       return -1;
+}
+#endif
+
+#ifndef HAVE_REALPATH
+char *rep_realpath(const char *path, char *resolved_path)
+{
+       /* As realpath is not a system call we can't return ENOSYS. */
+       errno = EINVAL;
+       return NULL;
+}
+#endif
+
+
+#ifndef HAVE_MEMMEM
+void *rep_memmem(const void *haystack, size_t haystacklen,
+                const void *needle, size_t needlelen)
+{
+       if (needlelen == 0) {
+               return discard_const(haystack);
+       }
+       while (haystacklen >= needlelen) {
+               char *p = (char *)memchr(haystack, *(const char *)needle,
+                                        haystacklen-(needlelen-1));
+               if (!p) return NULL;
+               if (memcmp(p, needle, needlelen) == 0) {
+                       return p;
+               }
+               haystack = p+1;
+               haystacklen -= (p - (const char *)haystack) + 1;
+       }
+       return NULL;
+}
+#endif
+
+#ifndef HAVE_VDPRINTF
+int vdprintf(int fd, const char *format, va_list ap)
+{
+       char *s = NULL;
+       int ret;
+
+       vasprintf(&s, format, ap);
+       if (s == NULL) {
+               errno = ENOMEM;
+               return -1;
+       }
+       ret = write(fd, s, strlen(s));
+       free(s);
+       return ret;
+}
+#endif
+
+#ifndef HAVE_DPRINTF
+int dprintf(int fd, const char *format, ...)
+{
+       int ret;
+       va_list ap;
+
+       va_start(ap, format);
+       ret = vdprintf(fd, format, ap);
+       va_end(ap);
+
+       return ret;
+}
+#endif
+