-#ifndef _CAREFUULPUTC_H
-#define _CAREFUULPUTC_H
+#ifndef UTIL_LINUX_CAREFUULPUTC_H
+#define UTIL_LINUX_CAREFUULPUTC_H
/* putc() for use in write and wall (that sometimes are sgid tty) */
/* Avoid control characters in our locale, and also ASCII control characters.
Note that the locale of the recipient is unknown. */
#include <stdio.h>
#include <ctype.h>
+#include <string.h>
+#include <ctype.h>
#define iso8859x_iscntrl(c) \
(((c) & 0x7f) < 0x20 || (c) == 0x7f)
-static inline int carefulputc(int c, FILE *fp, const char fail) {
+static inline int fputc_careful(int c, FILE *fp, const char fail) {
int ret;
if (c == '\007' || c == '\t' || c == '\r' || c == '\n' ||
return (ret < 0) ? EOF : 0;
}
+
+static inline void fputs_quoted(const char *data, FILE *out)
+{
+ const char *p;
+
+ fputc('"', out);
+ for (p = data; p && *p; p++) {
+ if ((unsigned char) *p == 0x22 || /* " */
+ (unsigned char) *p == 0x5c || /* \ */
+ !isprint((unsigned char) *p) ||
+ iscntrl((unsigned char) *p)) {
+
+ fprintf(out, "\\x%02x", (unsigned char) *p);
+ } else
+ fputc(*p, out);
+ }
+ fputc('"', out);
+}
+
+static inline void fputs_nonblank(const char *data, FILE *out)
+{
+ const char *p;
+
+ for (p = data; p && *p; p++) {
+ if (isblank((unsigned char) *p) ||
+ (unsigned char) *p == 0x5c || /* \ */
+ !isprint((unsigned char) *p) ||
+ iscntrl((unsigned char) *p)) {
+
+ fprintf(out, "\\x%02x", (unsigned char) *p);
+
+ } else
+ fputc(*p, out);
+ }
+}
+
+
#endif /* _CAREFUULPUTC_H */