[git commit] ash: jobs: Replace some uses of fmtstr with stpcpy/stpncpy

[Denys Vlasenko]

commit: https://git.busybox.net/busybox/commit/?id=2bad3a305b5934d17e817a8fbb9c42ee04dc5a3c
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master

Upstream commit:

    Date: Sat, 19 May 2018 02:39:45 +0800
    jobs: Replace some uses of fmtstr with stpcpy/stpncpy

    Some uses of fmtstr, particularly the ones without a format string,
    can be replaced with stpcpy or stpncpy.  This patch does that so
    we don't have to introduce unnecessary format strings in order to
    silence compiler warnings.

    Signed-off-by: Herbert Xu <herbert at gondor.apana.org.au>

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 shell/ash.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/shell/ash.c b/shell/ash.c
index a006a1c26..75edebd8d 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -4203,12 +4203,11 @@ fg_bgcmd(int argc UNUSED_PARAM, char **argv)
 #endif
 
 static int
-sprint_status48(char *s, int status, int sigonly)
+sprint_status48(char *os, int status, int sigonly)
 {
-	int col;
+	char *s = os;
 	int st;
 
-	col = 0;
 	if (!WIFEXITED(status)) {
 #if JOBS
 		if (WIFSTOPPED(status))
@@ -4226,17 +4225,17 @@ sprint_status48(char *s, int status, int sigonly)
 		}
 		st &= 0x7f;
 //TODO: use bbox's get_signame? strsignal adds ~600 bytes to text+rodata
-		col = fmtstr(s, 32, strsignal(st));
+		//s = stpncpy(s, strsignal(st), 32); //not all libc have stpncpy()
+		s += fmtstr(s, 32, strsignal(st));
 		if (WCOREDUMP(status)) {
-			strcpy(s + col, " (core dumped)");
-			col += sizeof(" (core dumped)")-1;
+			s = stpcpy(s, " (core dumped)");
 		}
 	} else if (!sigonly) {
 		st = WEXITSTATUS(status);
-		col = fmtstr(s, 16, (st ? "Done(%d)" : "Done"), st);
+		s += fmtstr(s, 16, (st ? "Done(%d)" : "Done"), st);
 	}
  out:
-	return col;
+	return s - os;
 }
 
 static int