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ed: Use strlcpy() instead of strcpy() and other minor things 

Based on contribution by Ali H. Fardan, thanks!
This commit is contained in:
Laslo Hunhold 2016-12-27 13:07:02 +01:00
parent 370e0ae675
commit e2f886c7e2
1 changed files with 11 additions and 7 deletions
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18
ed.c
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@ -322,7 +322,7 @@ inject(char *s, int j)
}
static void
clearbuf()
clearbuf(void)
{
if (scratch)
close(scratch);
@ -334,7 +334,7 @@ clearbuf()
}
static void
setscratch()
setscratch(void)
{
int r, k;
char *dir;
@ -421,6 +421,7 @@ rematch(int num)
lastmatch += off;
return 1;
}
return 0;
}
@ -547,7 +548,7 @@ invalid:
}
static void
getlst()
getlst(void)
{
int ln, c;
@ -595,7 +596,7 @@ deflines(int def1, int def2)
}
static void
dowrite(char *fname, int trunc)
dowrite(const char *fname, int trunc)
{
FILE *fp;
int i, line;
@ -610,13 +611,14 @@ dowrite(char *fname, int trunc)
curln = line2;
if (fclose(fp))
error("input/output error");
strcpy(savfname, fname);
if (strlcpy(savfname, fname, sizeof(savfname)) >= sizeof(savfname))
error("file name too long");
modflag = 0;
curln = line;
}
static void
doread(char *fname)
doread(const char *fname)
{
size_t cnt;
ssize_t n;
@ -741,9 +743,11 @@ getfname(char comm)
} else {
*bp = '\0';
if (savfname[0] == '\0' || comm == 'e' || comm == 'f')
strcpy(savfname, fname);
if (strlcpy(savfname, fname, sizeof(savfname)) >= sizeof(savfname))
error("file name too long");
return fname;
}
return NULL; /* not reached */
}