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Use strlcat not strncat in load_cfg and some other trivial tidying from

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Tiago Cunha.
This commit is contained in:
Nicholas Marriott 2012-12-06 13:06:05 +00:00
parent 8378be03d1
commit 8600fe054b
1 changed files with 15 additions and 13 deletions
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28
cfg.c
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@ -79,7 +79,7 @@ load_cfg(const char *path, struct cmd_ctx *ctxin, struct causelist *causes)
FILE *f;
u_int n;
char *buf, *line, *cause;
size_t len;
size_t len, newlen;
struct cmd_list *cmdlist;
struct cmd_ctx ctx;
enum cmd_retval retval;
@ -88,31 +88,35 @@ load_cfg(const char *path, struct cmd_ctx *ctxin, struct causelist *causes)
cfg_add_cause(causes, "%s: %s", path, strerror(errno));
return (CMD_RETURN_ERROR);
}
n = 0;
cfg_references++;
n = 0;
line = NULL;
retval = CMD_RETURN_NORMAL;
while ((buf = fgetln(f, &len))) {
if (buf[len - 1] == '\n')
len--;
if (line != NULL)
line = xrealloc(line, 1, strlen(line) + len + 1);
else {
line = xmalloc(len + 1);
/* Current line is the continuation of the previous one. */
if (line != NULL) {
newlen = strlen(line) + len + 1;
line = xrealloc(line, 1, newlen);
} else {
newlen = len + 1;
line = xmalloc(newlen);
*line = '\0';
}
/* Append buffer to line. strncat will terminate. */
strncat(line, buf, len);
/* Append current line to the previous. */
strlcat(line, buf, newlen);
n++;
/* Continuation: get next line? */
len = strlen(line);
if (len > 0 && line[len - 1] == '\\') {
line[len - 1] = '\0';
/* Ignore escaped backslash at EOL. */
if (len > 1 && line[len - 2] != '\\')
continue;
@ -127,11 +131,10 @@ load_cfg(const char *path, struct cmd_ctx *ctxin, struct causelist *causes)
cfg_add_cause(causes, "%s: %u: %s", path, n, cause);
free(cause);
continue;
} else
free(buf);
}
free(buf);
if (cmdlist == NULL)
continue;
cfg_cause = NULL;
if (ctxin == NULL) {
ctx.msgdata = NULL;
@ -162,8 +165,7 @@ load_cfg(const char *path, struct cmd_ctx *ctxin, struct causelist *causes)
}
cmd_list_free(cmdlist);
if (cfg_cause != NULL) {
cfg_add_cause(
causes, "%s: %d: %s", path, n, cfg_cause);
cfg_add_cause(causes, "%s: %d: %s", path, n, cfg_cause);
free(cfg_cause);
}
}