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vim-patch:8.0.1439: if cscope fails a search Vim may hang

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Problem:    If cscope fails a search Vim may hang.
Solution:   Bail out when a search error is encountered. (Safouane Baroudi,
            closes vim/vim#2598)

1274d33493
This commit is contained in:
Marco Hinz 2018-02-26 14:24:45 +01:00
parent f588113191
commit 81a520e60e
No known key found for this signature in database
GPG Key ID: 1C980A1B657B4A4F
1 changed files with 13 additions and 9 deletions
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22
src/nvim/if_cscope.c
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@ -549,7 +549,7 @@ static void cs_reading_emsg(
static int cs_cnt_matches(size_t idx) static int cs_cnt_matches(size_t idx)
{ {
char *stok; char *stok;
int nlines; int nlines = 0;
char *buf = xmalloc(CSREAD_BUFSIZE); char *buf = xmalloc(CSREAD_BUFSIZE);
for (;; ) { for (;; ) {
@ -569,16 +569,20 @@ static int cs_cnt_matches(size_t idx)
return CSCOPE_FAILURE; return CSCOPE_FAILURE;
} }
/* // If the database is out of date, or there's some other problem,
* If the database is out of date, or there's some other problem, // cscope will output error messages before the number-of-lines output.
* cscope will output error messages before the number-of-lines output. // Display/discard any output that doesn't match what we want.
* Display/discard any output that doesn't match what we want. // Accept "\S*cscope: X lines", also matches "mlcscope".
* Accept "\S*cscope: X lines", also matches "mlcscope". // Bail out for the "Unable to search" error.
*/ if (strstr((const char *)stok, "Unable to search database") != NULL) {
if ((stok = strtok(buf, (const char *)" ")) == NULL) break;
}
if ((stok = strtok(buf, (const char *)" ")) == NULL) {
continue; continue;
if (strstr((const char *)stok, "cscope:") == NULL) }
if (strstr((const char *)stok, "cscope:") == NULL) {
continue; continue;
}
if ((stok = strtok(NULL, (const char *)" ")) == NULL) if ((stok = strtok(NULL, (const char *)" ")) == NULL)
continue; continue;