[hackers] [ubase] strlcpy, strlcat: print program name, use for usage || Hiltjo Posthuma

[git]

commit 7f42fe77c38b4a4b3bf3aed810f51d0bd23f52dd
Author: Hiltjo Posthuma <hil...@codemadness.org>
Date:   Sun May 10 13:49:15 2015 +0200

    strlcpy, strlcat: print program name, use for usage
    
    ... same as sbase libutil/strl{cat,cpy}.c. Fix comment in util.h

diff --git a/libutil/eprintf.c b/libutil/eprintf.c
index 407c502..4d8f726 100644
--- a/libutil/eprintf.c
+++ b/libutil/eprintf.c
@@ -33,9 +33,8 @@ enprintf(int status, const char *fmt, ...)
 void
 venprintf(int status, const char *fmt, va_list ap)
 {
-#ifdef DEBUG
-       fprintf(stderr, "%s: ", argv0);
-#endif
+       if (strncmp(fmt, "usage", strlen("usage")))
+               fprintf(stderr, "%s: ", argv0);
 
        vfprintf(stderr, fmt, ap);
 
@@ -52,9 +51,8 @@ weprintf(const char *fmt, ...)
 {
        va_list ap;
 
-#ifdef DEBUG
-       fprintf(stderr, "%s: ", argv0);
-#endif
+       if (strncmp(fmt, "usage", strlen("usage")))
+               fprintf(stderr, "%s: ", argv0);
 
        va_start(ap, fmt);
        vfprintf(stderr, fmt, ap);
diff --git a/libutil/strlcat.c b/libutil/strlcat.c
index 9e2d251..bf263b8 100644
--- a/libutil/strlcat.c
+++ b/libutil/strlcat.c
@@ -50,3 +50,14 @@ strlcat(char *dst, const char *src, size_t siz)
        *d = '\0';
        return(dlen + (s - src)); /* count does not include NUL */
 }
+
+size_t
+estrlcat(char *dst, const char *src, size_t siz)
+{
+       size_t ret;
+
+       if ((ret = strlcat(dst, src, siz)) >= siz)
+               eprintf("strlcat: input string too long\n");
+
+       return ret;
+}
diff --git a/libutil/strlcpy.c b/libutil/strlcpy.c
index 388b426..44b618a 100644
--- a/libutil/strlcpy.c
+++ b/libutil/strlcpy.c
@@ -46,3 +46,14 @@ strlcpy(char *dst, const char *src, size_t siz)
        }
        return(s - src - 1); /* count does not include NUL */
 }
+
+size_t
+estrlcpy(char *dst, const char *src, size_t siz)
+{
+       size_t ret;
+
+       if ((ret = strlcpy(dst, src, siz)) >= siz)
+               eprintf("strlcpy: input string too long\n");
+
+       return ret;
+}
diff --git a/util.h b/util.h
index d9b5f1a..7b832e7 100644
--- a/util.h
+++ b/util.h
@@ -40,13 +40,15 @@ void putword(const char *);
 /* recurse.c */
 void recurse(const char *, void (*)(const char *));
 
-/* strlcpy.c */
+/* strlcat.c */
 #undef strlcat
 size_t strlcat(char *, const char *, size_t);
+size_t estrlcat(char *, const char *, size_t);
 
-/* strlcat.c */
+/* strlcpy.c */
 #undef strlcpy
 size_t strlcpy(char *, const char *, size_t);
+size_t estrlcpy(char *, const char *, size_t);
 
 /* tty.c */
 void devtotty(int, int *, int *);