Date: Wed, 22 Aug 2012 20:07:00 +0000 (UTC) From: "Pedro F. Giffuni" <pfg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r239589 - stable/9/lib/libedit Message-ID: <201208222007.q7MK70v6090038@svn.freebsd.org>
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Author: pfg Date: Wed Aug 22 20:06:59 2012 New Revision: 239589 URL: http://svn.freebsd.org/changeset/base/239589 Log: MFC r238178, 238624, 238810: Re-merge a couple of changes from NetBSD libedit. bin/sh has been taught about el_gets setting the count to -1 on error, so now we can partially revert r238173 to reduce differences with NetBSD's implementation. Also fix some warnings to be more in sync with NetBSD. Obtained from: NetBSD Modified: stable/9/lib/libedit/chared.c stable/9/lib/libedit/chared.h stable/9/lib/libedit/editline.3 stable/9/lib/libedit/el.h stable/9/lib/libedit/makelist stable/9/lib/libedit/read.c stable/9/lib/libedit/sig.c stable/9/lib/libedit/sig.h stable/9/lib/libedit/tokenizer.c Directory Properties: stable/9/lib/libedit/ (props changed) Modified: stable/9/lib/libedit/chared.c ============================================================================== --- stable/9/lib/libedit/chared.c Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/chared.c Wed Aug 22 20:06:59 2012 (r239589) @@ -29,7 +29,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $NetBSD: chared.c,v 1.25 2005/08/08 01:41:30 christos Exp $ + * $NetBSD: chared.c,v 1.27 2009/02/15 21:55:23 christos Exp $ */ #if !defined(lint) && !defined(SCCSID) @@ -59,12 +59,12 @@ cv_undo(EditLine *el) { c_undo_t *vu = &el->el_chared.c_undo; c_redo_t *r = &el->el_chared.c_redo; - unsigned int size; + size_t size; /* Save entire line for undo */ size = el->el_line.lastchar - el->el_line.buffer; vu->len = size; - vu->cursor = el->el_line.cursor - el->el_line.buffer; + vu->cursor = (int)(el->el_line.cursor - el->el_line.buffer); memcpy(vu->buf, el->el_line.buffer, size); /* save command info for redo */ @@ -83,7 +83,7 @@ cv_yank(EditLine *el, const char *ptr, i { c_kill_t *k = &el->el_chared.c_kill; - memcpy(k->buf, ptr, size +0u); + memcpy(k->buf, ptr, (size_t)size); k->last = k->buf + size; } @@ -97,7 +97,7 @@ c_insert(EditLine *el, int num) char *cp; if (el->el_line.lastchar + num >= el->el_line.limit) { - if (!ch_enlargebufs(el, num +0u)) + if (!ch_enlargebufs(el, (size_t)num)) return; /* can't go past end of buffer */ } @@ -118,7 +118,7 @@ c_delafter(EditLine *el, int num) { if (el->el_line.cursor + num > el->el_line.lastchar) - num = el->el_line.lastchar - el->el_line.cursor; + num = (int)(el->el_line.lastchar - el->el_line.cursor); if (el->el_map.current != el->el_map.emacs) { cv_undo(el); @@ -159,7 +159,7 @@ c_delbefore(EditLine *el, int num) { if (el->el_line.cursor - num < el->el_line.buffer) - num = el->el_line.cursor - el->el_line.buffer; + num = (int)(el->el_line.cursor - el->el_line.buffer); if (el->el_map.current != el->el_map.emacs) { cv_undo(el); @@ -375,7 +375,7 @@ cv_delfini(EditLine *el) /* sanity */ return; - size = el->el_line.cursor - el->el_chared.c_vcmd.pos; + size = (int)(el->el_line.cursor - el->el_chared.c_vcmd.pos); if (size == 0) size = 1; el->el_line.cursor = el->el_chared.c_vcmd.pos; @@ -529,8 +529,7 @@ ch_reset(EditLine *el, int mclear) } private void -ch__clearmacro(el) - EditLine *el; +ch__clearmacro(EditLine *el) { c_macro_t *ma = &el->el_chared.c_macro; while (ma->level >= 0) @@ -542,9 +541,7 @@ ch__clearmacro(el) * Returns 1 if successful, 0 if not. */ protected int -ch_enlargebufs(el, addlen) - EditLine *el; - size_t addlen; +ch_enlargebufs(EditLine *el, size_t addlen) { size_t sz, newsz; char *newbuffer, *oldbuf, *oldkbuf; @@ -695,12 +692,12 @@ protected int c_gets(EditLine *el, char *buf, const char *prompt) { char ch; - int len; + ssize_t len; char *cp = el->el_line.buffer; if (prompt) { len = strlen(prompt); - memcpy(cp, prompt, len + 0u); + memcpy(cp, prompt, (size_t)len); cp += len; } len = 0; @@ -721,7 +718,7 @@ c_gets(EditLine *el, char *buf, const ch case '\010': /* Delete and backspace */ case '\177': - if (len <= 0) { + if (len == 0) { len = -1; break; } @@ -749,7 +746,7 @@ c_gets(EditLine *el, char *buf, const ch el->el_line.buffer[0] = '\0'; el->el_line.lastchar = el->el_line.buffer; el->el_line.cursor = el->el_line.buffer; - return len; + return (int)len; } @@ -771,6 +768,6 @@ c_hpos(EditLine *el) ptr >= el->el_line.buffer && *ptr != '\n'; ptr--) continue; - return (el->el_line.cursor - ptr - 1); + return (int)(el->el_line.cursor - ptr - 1); } } Modified: stable/9/lib/libedit/chared.h ============================================================================== --- stable/9/lib/libedit/chared.h Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/chared.h Wed Aug 22 20:06:59 2012 (r239589) @@ -30,7 +30,7 @@ * SUCH DAMAGE. * * @(#)chared.h 8.1 (Berkeley) 6/4/93 - * $NetBSD: chared.h,v 1.17 2006/03/06 21:11:56 christos Exp $ + * $NetBSD: chared.h,v 1.18 2009/02/15 21:55:23 christos Exp $ * $FreeBSD$ */ @@ -70,7 +70,7 @@ typedef struct c_macro_t { * Undo information for vi - no undo in emacs (yet) */ typedef struct c_undo_t { - int len; /* length of saved line */ + ssize_t len; /* length of saved line */ int cursor; /* position of saved cursor */ char *buf; /* full saved text */ } c_undo_t; Modified: stable/9/lib/libedit/editline.3 ============================================================================== --- stable/9/lib/libedit/editline.3 Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/editline.3 Wed Aug 22 20:06:59 2012 (r239589) @@ -162,6 +162,11 @@ is modified to contain the number of cha Returns the line read if successful, or .Dv NULL if no characters were read or if an error occurred. +If an error occurred, +.Fa count +is set to \-1 and +.Dv errno +contains the error code that caused it. The return value may not remain valid across calls to .Fn el_gets and must be copied if the data is to be retained. Modified: stable/9/lib/libedit/el.h ============================================================================== --- stable/9/lib/libedit/el.h Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/el.h Wed Aug 22 20:06:59 2012 (r239589) @@ -115,6 +115,7 @@ struct editline { FILE *el_errfile; /* Stdio stuff */ int el_infd; /* Input file descriptor */ int el_flags; /* Various flags. */ + int el_errno; /* Local copy of errno */ coord_t el_cursor; /* Cursor location */ char **el_display; /* Real screen image = what is there */ char **el_vdisplay; /* Virtual screen image = what we see */ Modified: stable/9/lib/libedit/makelist ============================================================================== --- stable/9/lib/libedit/makelist Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/makelist Wed Aug 22 20:06:59 2012 (r239589) @@ -1,5 +1,5 @@ #!/bin/sh - -# $NetBSD: makelist,v 1.10 2005/08/08 14:04:49 christos Exp $ +# $NetBSD: makelist,v 1.11 2005/10/22 16:45:03 christos Exp $ # $FreeBSD$ # # Copyright (c) 1992, 1993 @@ -141,7 +141,7 @@ case $FLAG in # -fh) cat $FILES | $AWK '/el_action_t/ { print $3 }' | \ - sort | LC_ALL=C tr 'a-z' 'A-Z' | $AWK ' + sort | LC_ALL=C tr '[:lower:]' '[:upper:]' | $AWK ' BEGIN { printf("/* Automatically generated file, do not edit */\n"); printf("#ifndef _h_fcns_c\n#define _h_fcns_c\n"); Modified: stable/9/lib/libedit/read.c ============================================================================== --- stable/9/lib/libedit/read.c Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/read.c Wed Aug 22 20:06:59 2012 (r239589) @@ -235,9 +235,12 @@ read_getcmd(EditLine *el, el_action_t *c el_action_t cmd; int num; + el->el_errno = 0; do { - if ((num = el_getc(el, ch)) != 1) /* if EOF or error */ + if ((num = el_getc(el, ch)) != 1) { /* if EOF or error */ + el->el_errno = num == 0 ? 0 : errno; return (num); + } #ifdef KANJI if ((*ch & 0200)) { @@ -289,14 +292,21 @@ read_char(EditLine *el, char *cp) ssize_t num_read; int tried = 0; - while ((num_read = read(el->el_infd, cp, 1)) == -1) + again: + el->el_signal->sig_no = 0; + while ((num_read = read(el->el_infd, cp, 1)) == -1) { + if (el->el_signal->sig_no == SIGCONT) { + sig_set(el); + el_set(el, EL_REFRESH); + goto again; + } if (!tried && read__fixio(el->el_infd, errno) == 0) tried = 1; else { *cp = '\0'; return (-1); } - + } return (int)num_read; } @@ -403,10 +413,13 @@ el_gets(EditLine *el, int *nread) int num; /* how many chars we have read at NL */ char ch; int crlf = 0; + int nrb; #ifdef FIONREAD c_macro_t *ma = &el->el_chared.c_macro; #endif /* FIONREAD */ + if (nread == NULL) + nread = &nrb; *nread = 0; if (el->el_flags & NO_TTY) { @@ -427,12 +440,13 @@ el_gets(EditLine *el, int *nread) if (cp[-1] == '\r' || cp[-1] == '\n') break; } + if (num == -1) + el->el_errno = errno; el->el_line.cursor = el->el_line.lastchar = cp; *cp = '\0'; - if (nread) - *nread = (int)(el->el_line.cursor - el->el_line.buffer); - return (*nread ? el->el_line.buffer : NULL); + *nread = (int)(el->el_line.cursor - el->el_line.buffer); + goto done; } @@ -443,8 +457,8 @@ el_gets(EditLine *el, int *nread) (void) ioctl(el->el_infd, FIONREAD, (ioctl_t) & chrs); if (chrs == 0) { if (tty_rawmode(el) < 0) { - if (nread) - *nread = 0; + errno = 0; + *nread = 0; return (NULL); } } @@ -457,6 +471,7 @@ el_gets(EditLine *el, int *nread) if (el->el_flags & EDIT_DISABLED) { char *cp; size_t idx; + if ((el->el_flags & UNBUFFERED) == 0) cp = el->el_line.buffer; else @@ -480,11 +495,13 @@ el_gets(EditLine *el, int *nread) break; } + if (num == -1) { + el->el_errno = errno; + } + el->el_line.cursor = el->el_line.lastchar = cp; *cp = '\0'; - if (nread) - *nread = (int)(el->el_line.cursor - el->el_line.buffer); - return (*nread ? el->el_line.buffer : NULL); + goto done; } for (num = OKCMD; num == OKCMD;) { /* while still editing this @@ -617,12 +634,17 @@ el_gets(EditLine *el, int *nread) /* make sure the tty is set up correctly */ if ((el->el_flags & UNBUFFERED) == 0) { read_finish(el); - if (nread) - *nread = num; + *nread = num != -1 ? num : 0; } else { - if (nread) - *nread = - (int)(el->el_line.lastchar - el->el_line.buffer); + *nread = (int)(el->el_line.lastchar - el->el_line.buffer); } - return (num ? el->el_line.buffer : NULL); +done: + if (*nread == 0) { + if (num == -1) { + *nread = -1; + errno = el->el_errno; + } + return NULL; + } else + return el->el_line.buffer; } Modified: stable/9/lib/libedit/sig.c ============================================================================== --- stable/9/lib/libedit/sig.c Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/sig.c Wed Aug 22 20:06:59 2012 (r239589) @@ -29,7 +29,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $NetBSD: sig.c,v 1.14 2009/02/18 15:04:40 christos Exp $ + * $NetBSD: sig.c,v 1.15 2009/02/19 15:20:22 christos Exp $ */ #if !defined(lint) && !defined(SCCSID) @@ -73,6 +73,8 @@ sig_handler(int signo) (void) sigaddset(&nset, signo); (void) sigprocmask(SIG_BLOCK, &nset, &oset); + sel->el_signal->sig_no = signo; + switch (signo) { case SIGCONT: tty_rawmode(sel); @@ -158,12 +160,12 @@ sig_set(EditLine *el) struct sigaction osa, nsa; nsa.sa_handler = sig_handler; + nsa.sa_flags = 0; sigemptyset(&nsa.sa_mask); (void) sigprocmask(SIG_BLOCK, &el->el_signal->sig_set, &oset); for (i = 0; sighdl[i] != -1; i++) { - nsa.sa_flags = SIGINT ? 0 : SA_RESTART; /* This could happen if we get interrupted */ if (sigaction(sighdl[i], &nsa, &osa) != -1 && osa.sa_handler != sig_handler) Modified: stable/9/lib/libedit/sig.h ============================================================================== --- stable/9/lib/libedit/sig.h Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/sig.h Wed Aug 22 20:06:59 2012 (r239589) @@ -30,7 +30,7 @@ * SUCH DAMAGE. * * @(#)sig.h 8.1 (Berkeley) 6/4/93 - * $NetBSD: sig.h,v 1.7 2009/02/15 21:25:01 christos Exp $ + * $NetBSD: sig.h,v 1.8 2009/02/19 15:20:22 christos Exp $ * $FreeBSD$ */ @@ -61,6 +61,7 @@ typedef struct { struct sigaction sig_action[ALLSIGSNO]; sigset_t sig_set; + volatile sig_atomic_t sig_no; } *el_signal_t; protected void sig_end(EditLine*); Modified: stable/9/lib/libedit/tokenizer.c ============================================================================== --- stable/9/lib/libedit/tokenizer.c Wed Aug 22 20:05:34 2012 (r239588) +++ stable/9/lib/libedit/tokenizer.c Wed Aug 22 20:06:59 2012 (r239589) @@ -29,7 +29,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $NetBSD: tokenizer.c,v 1.14 2003/12/05 13:37:48 lukem Exp $ + * $NetBSD: tokenizer.c,v 1.15 2009/02/15 21:55:23 christos Exp $ */ #if !defined(lint) && !defined(SCCSID) @@ -198,7 +198,7 @@ tok_line(Tokenizer *tok, const LineInfo ptr = ""; if (ptr == line->cursor) { cc = tok->argc; - co = tok->wptr - tok->wstart; + co = (int)(tok->wptr - tok->wstart); } switch (*ptr) { case '\'': @@ -417,7 +417,7 @@ tok_line(Tokenizer *tok, const LineInfo tok_line_outok: if (cc == -1 && co == -1) { cc = tok->argc; - co = tok->wptr - tok->wstart; + co = (int)(tok->wptr - tok->wstart); } if (cursorc != NULL) *cursorc = cc;
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