diff options
| -rw-r--r-- | src/basic/util.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/basic/util.c b/src/basic/util.c index d4d3d3c83a..bb7ec007d7 100644 --- a/src/basic/util.c +++ b/src/basic/util.c @@ -5715,9 +5715,12 @@ int unquote_first_word(const char **p, char **ret, UnquoteFlags flags) { } state = START; assert(p); - assert(*p); assert(ret); + /* Bail early if called after last value or with no input */ + if (!*p) + goto finish_force_terminate; + /* Parses the first word of a string, and returns it in * *ret. Removes all quotes in the process. When parsing fails * (because of an uneven number of quotes or similar), leaves @@ -5730,7 +5733,7 @@ int unquote_first_word(const char **p, char **ret, UnquoteFlags flags) { case START: if (c == 0) - goto finish; + goto finish_force_terminate; else if (strchr(WHITESPACE, c)) break; @@ -5739,7 +5742,7 @@ int unquote_first_word(const char **p, char **ret, UnquoteFlags flags) { case VALUE: if (c == 0) - goto finish; + goto finish_force_terminate; else if (c == '\'') { if (!GREEDY_REALLOC(s, allocated, sz+1)) return -ENOMEM; @@ -5766,7 +5769,7 @@ int unquote_first_word(const char **p, char **ret, UnquoteFlags flags) { case SINGLE_QUOTE: if (c == 0) { if (flags & UNQUOTE_RELAX) - goto finish; + goto finish_force_terminate; return -EINVAL; } else if (c == '\'') state = VALUE; @@ -5814,10 +5817,10 @@ int unquote_first_word(const char **p, char **ret, UnquoteFlags flags) { * mode, UNQUOTE_CUNESCAP_RELAX mode does not allow them. */ s[sz++] = '\\'; - goto finish; + goto finish_force_terminate; } if (flags & UNQUOTE_RELAX) - goto finish; + goto finish_force_terminate; return -EINVAL; } @@ -5861,8 +5864,11 @@ end_escape: (*p) ++; } +finish_force_terminate: + *p = NULL; finish: if (!s) { + *p = NULL; *ret = NULL; return 0; } |