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universal parser: do not leak parser->data

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-06-26 04:00:52 +02:00
parent 1fcbff2fac
commit 63144be7ea
1 changed files with 12 additions and 8 deletions
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20
libbb/parse_config.c
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@ -128,8 +128,8 @@ int FAST_FUNC config_read(parser_t *parser, char **tokens, unsigned flags, const
int ntokens, mintokens; int ntokens, mintokens;
int t, len; int t, len;
ntokens = flags & 0xFF; ntokens = (uint8_t)flags;
mintokens = (flags & 0xFF00) >> 8; mintokens = (uint8_t)(flags >> 8);
if (parser == NULL) if (parser == NULL)
return 0; return 0;
@ -159,7 +159,8 @@ again:
parser->data = xstrdup(line); parser->data = xstrdup(line);
/* Tokenize the line */ /* Tokenize the line */
for (t = 0; *line && *line != delims[0] && t < ntokens; t++) { t = 0;
do {
/* Pin token */ /* Pin token */
tokens[t] = line; tokens[t] = line;
@ -179,10 +180,10 @@ again:
} }
/* Token not terminated? */ /* Token not terminated? */
if (line[0] == delims[0]) if (*line == delims[0])
*line = '\0'; *line = '\0';
else if (line[0] != '\0') else if (*line != '\0')
*(line++) = '\0'; *line++ = '\0';
#if 0 /* unused so far */ #if 0 /* unused so far */
if (flags & PARSE_ESCAPE) { if (flags & PARSE_ESCAPE) {
@ -201,17 +202,20 @@ again:
*to = '\0'; *to = '\0';
} }
#endif #endif
/* Skip possible delimiters */ /* Skip possible delimiters */
if (flags & PARSE_COLLAPSE) if (flags & PARSE_COLLAPSE)
line += strspn(line, delims + 1); line += strspn(line, delims + 1);
}
t++;
} while (*line && *line != delims[0] && t < ntokens);
if (t < mintokens) { if (t < mintokens) {
bb_error_msg("bad line %u: %d tokens found, %d needed", bb_error_msg("bad line %u: %d tokens found, %d needed",
parser->lineno, t, mintokens); parser->lineno, t, mintokens);
if (flags & PARSE_MIN_DIE) if (flags & PARSE_MIN_DIE)
xfunc_die(); xfunc_die();
if (flags & PARSE_KEEP_COPY)
free(parser->data);
goto again; goto again;
} }