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Fix a new bug introduced by the previous bug fix

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This commit is contained in:
Archie Cobbs 1998-12-08 21:29:22 +00:00
parent 290e3eed11
commit c56690ef7b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=41602
3 changed files with 23 additions and 10 deletions
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13
usr.bin/sed/compile.c
View File

@ -40,7 +40,7 @@
static char sccsid[] = "@(#)compile.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id: compile.c,v 1.10 1998/09/22 18:39:47 brian Exp $";
"$Id: compile.c,v 1.11 1998/12/07 05:35:54 archie Exp $";
#endif /* not lint */
#include <sys/types.h>
@ -160,7 +160,7 @@ compile_stream(link)
stack = 0;
for (;;) {
if ((p = cu_fgets(lbuf, sizeof(lbuf))) == NULL) {
if ((p = cu_fgets(lbuf, sizeof(lbuf), NULL)) == NULL) {
if (stack != 0)
errx(1, "%lu: %s: unexpected EOF (pending }'s)",
linenum, fname);
@ -456,6 +456,7 @@ compile_subst(p, s)
static char lbuf[_POSIX2_LINE_MAX + 1];
int asize, ref, size;
char c, *text, *op, *sp;
int more = 0;
c = *p++; /* Terminator character */
if (c == '\0')
@ -483,8 +484,8 @@ compile_subst(p, s)
} else if (*p == '&' || *p == '\\')
*sp++ = '\\';
} else if (*p == c) {
if (*++p == '\0') {
if (cu_fgets(lbuf, sizeof(lbuf)))
if (*++p == '\0' && more) {
if (cu_fgets(lbuf, sizeof(lbuf), &more))
p = lbuf;
}
*sp++ = '\0';
@ -503,7 +504,7 @@ compile_subst(p, s)
asize *= 2;
text = xrealloc(text, asize);
}
} while (cu_fgets(p = lbuf, sizeof(lbuf)));
} while (cu_fgets(p = lbuf, sizeof(lbuf), &more));
errx(1, "%lu: %s: unterminated substitute in regular expression",
linenum, fname);
/* NOTREACHED */
@ -636,7 +637,7 @@ compile_text()
asize = 2 * _POSIX2_LINE_MAX + 1;
text = xmalloc(asize);
size = 0;
while (cu_fgets(lbuf, sizeof(lbuf))) {
while (cu_fgets(lbuf, sizeof(lbuf), NULL)) {
op = s = text + size;
p = lbuf;
EATSPACE();

2
usr.bin/sed/extern.h
View File

@ -50,7 +50,7 @@ extern char *fname;
void cfclose __P((struct s_command *, struct s_command *));
void compile __P((void));
void cspace __P((SPACE *, char *, size_t, enum e_spflag));
char *cu_fgets __P((char *, int));
char *cu_fgets __P((char *, int, int *));
int mf_fgets __P((SPACE *, enum e_spflag));
void process __P((void));
char *strregerror __P((int, regex_t *));

18
usr.bin/sed/main.c
View File

@ -46,7 +46,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 1/3/94";
#endif
static const char rcsid[] =
"$Id$";
"$Id: main.c,v 1.7 1997/08/11 07:21:03 charnier Exp $";
#endif /* not lint */
#include <sys/types.h>
@ -176,9 +176,10 @@ usage()
* together. Empty strings and files are ignored.
*/
char *
cu_fgets(buf, n)
cu_fgets(buf, n, more)
char *buf;
int n;
int *more;
{
static enum {ST_EOF, ST_FILE, ST_STRING} state = ST_EOF;
static FILE *f; /* Current open file */
@ -189,8 +190,11 @@ cu_fgets(buf, n)
again:
switch (state) {
case ST_EOF:
if (script == NULL)
if (script == NULL) {
if (more != NULL)
*more = 0;
return (NULL);
}
linenum = 0;
switch (script->type) {
case CU_FILE:
@ -215,6 +219,8 @@ cu_fgets(buf, n)
linenum++;
if (linenum == 1 && buf[0] == '#' && buf[1] == 'n')
nflag = 1;
if (more != NULL)
*more = !feof(f);
return (p);
}
script = script->next;
@ -229,6 +235,8 @@ cu_fgets(buf, n)
if (n-- <= 1) {
*p = '\0';
linenum++;
if (more != NULL)
*more = 1;
return (buf);
}
switch (*s) {
@ -241,6 +249,8 @@ cu_fgets(buf, n)
script = script->next;
*p = '\0';
linenum++;
if (more != NULL)
*more = 0;
return (buf);
}
case '\n':
@ -248,6 +258,8 @@ cu_fgets(buf, n)
*p = '\0';
s++;
linenum++;
if (more != NULL)
*more = 0;
return (buf);
default:
*p++ = *s++;