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Don't post-increment pointers inside a loop conditional.

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While I'm here:
- Let lm_add() call strdup() on its own behalf.
- Use a temporary pointer when parsing constraints; only set the
  constraint pointer on a totally successful match.

PR:		 bin/52783
Submitted by:	 David P. Reese Jr. <daver@gomerbud.com>
Approved by:	 re (rwatson)
This commit is contained in:
Matthew N. Dodd 2003-05-30 00:49:16 +00:00
parent 84d55c7fad
commit 1340fc1015
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=115400
1 changed files with 11 additions and 11 deletions
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22
libexec/rtld-elf/libmap.c
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@ -31,7 +31,7 @@ struct lmp {
TAILQ_ENTRY(lmp) lmp_link;
};
static void lm_add (char *, char *, char *);
static void lm_add (const char *, const char *, const char *);
static void lm_free (struct lm_list *);
static char * lml_find (struct lm_list *, const char *);
static struct lm_list * lmp_find (const char *);
@ -45,7 +45,7 @@ lm_init (void)
{
FILE *fp;
char *cp;
char *f, *t, *p;
char *f, *t, *p, *c;
char prog[MAXPATHLEN];
char line[MAXPATHLEN + 2];
@ -56,7 +56,7 @@ lm_init (void)
p = NULL;
while ((cp = fgets(line, MAXPATHLEN + 1, fp)) != NULL) {
t = f = NULL;
t = f = c = NULL;
/* Skip over leading space */
while (isspace(*cp)) cp++;
@ -75,7 +75,7 @@ lm_init (void)
if (iseol(*cp) || *cp == ']')
continue;
p = cp++;
c = cp++;
/* Skip to end of word */
while (!isspace(*cp) && !iseol(*cp) && *cp != ']')
cp++;
@ -93,10 +93,10 @@ lm_init (void)
* There should be nothing except whitespace or comment
from this point to the end of the line.
*/
while(isspace(*cp++));
while(isspace(*cp)) *cp++;
if (!iseol(*cp)) continue;
strcpy(prog, p);
strcpy(prog, c);
p = prog;
continue;
}
@ -122,7 +122,7 @@ lm_init (void)
if (!iseol(*cp)) continue;
*cp = '\0';
lm_add(p, xstrdup(f), xstrdup(t));
lm_add(p, f, t);
}
fclose(fp);
return;
@ -159,7 +159,7 @@ lm_fini (void)
}
static void
lm_add (char *p, char *f, char *t)
lm_add (const char *p, const char *f, const char *t)
{
struct lm_list *lml;
struct lm *lm;
@ -171,8 +171,8 @@ lm_add (char *p, char *f, char *t)
lml = lmp_init(xstrdup(p));
lm = xmalloc(sizeof(struct lm));
lm->f = f;
lm->t = t;
lm->f = xstrdup(f);
lm->t = xstrdup(t);
TAILQ_INSERT_HEAD(lml, lm, lm_link);
}
@ -189,7 +189,7 @@ lm_find (const char *p, const char *f)
* Add a global mapping if we have
* a successful constrained match.
*/
lm_add(NULL, xstrdup(f), xstrdup(t));
lm_add(NULL, f, t);
return (t);
}
}