1 files changed, 52 insertions, 0 deletions
diff --git a/libpam/include/pam_inline.h b/libpam/include/pam_inline.h
index cc302248..39803191 100644
--- a/libpam/include/pam_inline.h
+++ b/libpam/include/pam_inline.h
@@ -9,6 +9,7 @@
 #define PAM_INLINE_H
 
 #include "pam_cc_compat.h"
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
@@ -209,4 +210,55 @@ pam_consttime_streq(const char *userinput, const char *secret) {
 	return ret == 0;
 }
 
+
+static inline char *xreadlink(const char *restrict path) {
+	char *buffer;
+	size_t allocated = 128;
+	ssize_t len;
+ 
+	while (1) {
+		buffer = (char*) malloc(allocated);
+		if (!buffer) { return NULL; }
+		len = readlink(path, buffer, allocated);
+		if (len < (ssize_t) allocated) { return buffer; }
+		free(buffer);
+		if (len >= (ssize_t) allocated) { allocated *= 2; continue; }
+		return NULL;
+	}
+ }
+ 
+
+static inline char *xgethostname() {
+	long max_host_name;
+	char *buffer;
+
+	max_host_name = sysconf(_SC_HOST_NAME_MAX);
+	buffer = malloc(max_host_name + 1);
+
+	if (gethostname(buffer, max_host_name + 1)) {
+		free(buffer);
+		return NULL;
+	}
+
+	buffer[max_host_name] = '\0';
+	return buffer;
+}
+
+static inline char *xgetcwd() {
+	char *buffer;
+	size_t allocated = 128;
+
+	while (1) {
+		buffer = (char*) malloc(allocated);
+		if (!buffer) { return NULL; }
+		getcwd(buffer, allocated);
+		if (buffer) return buffer;
+		free(buffer);
+		if (errno == ERANGE) { allocated *= 2; continue; }
+		return NULL;
+	}
+}
+
+
+
 #endif /* PAM_INLINE_H */