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if_cscope.c
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if_cscope.c
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/* vi:set ts=8 sts=4 sw=4:
*
* CSCOPE support for Vim added by Andy Kahn <kahn@zk3.dec.com>
* Ported to Win32 by Sergey Khorev <sergey.khorev@gmail.com>
*
* The basic idea/structure of cscope for Vim was borrowed from Nvi. There
* might be a few lines of code that look similar to what Nvi has.
*
* See README.txt for an overview of the Vim source code.
*/
#include "vim.h"
#if defined(FEAT_CSCOPE) || defined(PROTO)
#include <sys/types.h>
#include <sys/stat.h>
#if defined(UNIX)
# include <sys/wait.h>
#endif
#include "if_cscope.h"
static void cs_usage_msg __ARGS((csid_e x));
static int cs_add __ARGS((exarg_T *eap));
static void cs_stat_emsg __ARGS((char *fname));
static int cs_add_common __ARGS((char *, char *, char *));
static int cs_check_for_connections __ARGS((void));
static int cs_check_for_tags __ARGS((void));
static int cs_cnt_connections __ARGS((void));
static void cs_reading_emsg __ARGS((int idx));
static int cs_cnt_matches __ARGS((int idx));
static char * cs_create_cmd __ARGS((char *csoption, char *pattern));
static int cs_create_connection __ARGS((int i));
static void do_cscope_general __ARGS((exarg_T *eap, int make_split));
#ifdef FEAT_QUICKFIX
static void cs_file_results __ARGS((FILE *, int *));
#endif
static void cs_fill_results __ARGS((char *, int , int *, char ***,
char ***, int *));
static int cs_find __ARGS((exarg_T *eap));
static int cs_find_common __ARGS((char *opt, char *pat, int, int, int, char_u *cmdline));
static int cs_help __ARGS((exarg_T *eap));
static void clear_csinfo __ARGS((int i));
static int cs_insert_filelist __ARGS((char *, char *, char *,
struct stat *));
static int cs_kill __ARGS((exarg_T *eap));
static void cs_kill_execute __ARGS((int, char *));
static cscmd_T * cs_lookup_cmd __ARGS((exarg_T *eap));
static char * cs_make_vim_style_matches __ARGS((char *, char *,
char *, char *));
static char * cs_manage_matches __ARGS((char **, char **, int, mcmd_e));
static char * cs_parse_results __ARGS((int cnumber, char *buf, int bufsize, char **context, char **linenumber, char **search));
static char * cs_pathcomponents __ARGS((char *path));
static void cs_print_tags_priv __ARGS((char **, char **, int));
static int cs_read_prompt __ARGS((int));
static void cs_release_csp __ARGS((int, int freefnpp));
static int cs_reset __ARGS((exarg_T *eap));
static char * cs_resolve_file __ARGS((int, char *));
static int cs_show __ARGS((exarg_T *eap));
static csinfo_T * csinfo = NULL;
static int csinfo_size = 0; /* number of items allocated in
csinfo[] */
static int eap_arg_len; /* length of eap->arg, set in
cs_lookup_cmd() */
static cscmd_T cs_cmds[] =
{
{ "add", cs_add,
N_("Add a new database"), "add file|dir [pre-path] [flags]", 0 },
{ "find", cs_find,
N_("Query for a pattern"), "find c|d|e|f|g|i|s|t name", 1 },
{ "help", cs_help,
N_("Show this message"), "help", 0 },
{ "kill", cs_kill,
N_("Kill a connection"), "kill #", 0 },
{ "reset", cs_reset,
N_("Reinit all connections"), "reset", 0 },
{ "show", cs_show,
N_("Show connections"), "show", 0 },
{ NULL, NULL, NULL, NULL, 0 }
};
static void
cs_usage_msg(x)
csid_e x;
{
(void)EMSG2(_("E560: Usage: cs[cope] %s"), cs_cmds[(int)x].usage);
}
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
static enum
{
EXP_CSCOPE_SUBCMD, /* expand ":cscope" sub-commands */
EXP_SCSCOPE_SUBCMD, /* expand ":scscope" sub-commands */
EXP_CSCOPE_FIND, /* expand ":cscope find" arguments */
EXP_CSCOPE_KILL /* expand ":cscope kill" arguments */
} expand_what;
/*
* Function given to ExpandGeneric() to obtain the cscope command
* expansion.
*/
char_u *
get_cscope_name(xp, idx)
expand_T *xp UNUSED;
int idx;
{
int current_idx;
int i;
switch (expand_what)
{
case EXP_CSCOPE_SUBCMD:
/* Complete with sub-commands of ":cscope":
* add, find, help, kill, reset, show */
return (char_u *)cs_cmds[idx].name;
case EXP_SCSCOPE_SUBCMD:
/* Complete with sub-commands of ":scscope": same sub-commands as
* ":cscope" but skip commands which don't support split windows */
for (i = 0, current_idx = 0; cs_cmds[i].name != NULL; i++)
if (cs_cmds[i].cansplit)
if (current_idx++ == idx)
break;
return (char_u *)cs_cmds[i].name;
case EXP_CSCOPE_FIND:
{
const char *query_type[] =
{
"c", "d", "e", "f", "g", "i", "s", "t", NULL
};
/* Complete with query type of ":cscope find {query_type}".
* {query_type} can be letters (c, d, ... t) or numbers (0, 1,
* ..., 8) but only complete with letters, since numbers are
* redundant. */
return (char_u *)query_type[idx];
}
case EXP_CSCOPE_KILL:
{
static char connection[5];
/* ":cscope kill" accepts connection numbers or partial names of
* the pathname of the cscope database as argument. Only complete
* with connection numbers. -1 can also be used to kill all
* connections. */
for (i = 0, current_idx = 0; i < csinfo_size; i++)
{
if (csinfo[i].fname == NULL)
continue;
if (current_idx++ == idx)
{
vim_snprintf(connection, sizeof(connection), "%d", i);
return (char_u *)connection;
}
}
return (current_idx == idx && idx > 0) ? (char_u *)"-1" : NULL;
}
default:
return NULL;
}
}
/*
* Handle command line completion for :cscope command.
*/
void
set_context_in_cscope_cmd(xp, arg, cmdidx)
expand_T *xp;
char_u *arg;
cmdidx_T cmdidx;
{
char_u *p;
/* Default: expand subcommands */
xp->xp_context = EXPAND_CSCOPE;
xp->xp_pattern = arg;
expand_what = (cmdidx == CMD_scscope)
? EXP_SCSCOPE_SUBCMD : EXP_CSCOPE_SUBCMD;
/* (part of) subcommand already typed */
if (*arg != NUL)
{
p = skiptowhite(arg);
if (*p != NUL) /* past first word */
{
xp->xp_pattern = skipwhite(p);
if (*skiptowhite(xp->xp_pattern) != NUL)
xp->xp_context = EXPAND_NOTHING;
else if (STRNICMP(arg, "add", p - arg) == 0)
xp->xp_context = EXPAND_FILES;
else if (STRNICMP(arg, "kill", p - arg) == 0)
expand_what = EXP_CSCOPE_KILL;
else if (STRNICMP(arg, "find", p - arg) == 0)
expand_what = EXP_CSCOPE_FIND;
else
xp->xp_context = EXPAND_NOTHING;
}
}
}
#endif /* FEAT_CMDL_COMPL */
/*
* PRIVATE: do_cscope_general
*
* Find the command, print help if invalid, and then call the corresponding
* command function.
*/
static void
do_cscope_general(eap, make_split)
exarg_T *eap;
int make_split; /* whether to split window */
{
cscmd_T *cmdp;
if ((cmdp = cs_lookup_cmd(eap)) == NULL)
{
cs_help(eap);
return;
}
#ifdef FEAT_WINDOWS
if (make_split)
{
if (!cmdp->cansplit)
{
(void)MSG_PUTS(_("This cscope command does not support splitting the window.\n"));
return;
}
postponed_split = -1;
postponed_split_flags = cmdmod.split;
postponed_split_tab = cmdmod.tab;
}
#endif
cmdp->func(eap);
#ifdef FEAT_WINDOWS
postponed_split_flags = 0;
postponed_split_tab = 0;
#endif
}
/*
* PUBLIC: do_cscope
*/
void
do_cscope(eap)
exarg_T *eap;
{
do_cscope_general(eap, FALSE);
}
/*
* PUBLIC: do_scscope
*
* same as do_cscope, but splits window, too.
*/
void
do_scscope(eap)
exarg_T *eap;
{
do_cscope_general(eap, TRUE);
}
/*
* PUBLIC: do_cstag
*
*/
void
do_cstag(eap)
exarg_T *eap;
{
int ret = FALSE;
if (*eap->arg == NUL)
{
(void)EMSG(_("E562: Usage: cstag <ident>"));
return;
}
switch (p_csto)
{
case 0 :
if (cs_check_for_connections())
{
ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE,
FALSE, *eap->cmdlinep);
if (ret == FALSE)
{
cs_free_tags();
if (msg_col)
msg_putchar('\n');
if (cs_check_for_tags())
ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE);
}
}
else if (cs_check_for_tags())
{
ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE);
}
break;
case 1 :
if (cs_check_for_tags())
{
ret = do_tag(eap->arg, DT_JUMP, 0, eap->forceit, FALSE);
if (ret == FALSE)
{
if (msg_col)
msg_putchar('\n');
if (cs_check_for_connections())
{
ret = cs_find_common("g", (char *)(eap->arg), eap->forceit,
FALSE, FALSE, *eap->cmdlinep);
if (ret == FALSE)
cs_free_tags();
}
}
}
else if (cs_check_for_connections())
{
ret = cs_find_common("g", (char *)(eap->arg), eap->forceit, FALSE,
FALSE, *eap->cmdlinep);
if (ret == FALSE)
cs_free_tags();
}
break;
default :
break;
}
if (!ret)
{
(void)EMSG(_("E257: cstag: tag not found"));
#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
g_do_tagpreview = 0;
#endif
}
} /* do_cscope */
/*
* PUBLIC: cs_find
*
* this simulates a vim_fgets(), but for cscope, returns the next line
* from the cscope output. should only be called from find_tags()
*
* returns TRUE if eof, FALSE otherwise
*/
int
cs_fgets(buf, size)
char_u *buf;
int size;
{
char *p;
if ((p = cs_manage_matches(NULL, NULL, -1, Get)) == NULL)
return TRUE;
vim_strncpy(buf, (char_u *)p, size - 1);
return FALSE;
} /* cs_fgets */
/*
* PUBLIC: cs_free_tags
*
* called only from do_tag(), when popping the tag stack
*/
void
cs_free_tags()
{
cs_manage_matches(NULL, NULL, -1, Free);
}
/*
* PUBLIC: cs_print_tags
*
* called from do_tag()
*/
void
cs_print_tags()
{
cs_manage_matches(NULL, NULL, -1, Print);
}
/*
* "cscope_connection([{num} , {dbpath} [, {prepend}]])" function
*
* Checks for the existence of a |cscope| connection. If no
* parameters are specified, then the function returns:
*
* 0, if cscope was not available (not compiled in), or if there
* are no cscope connections; or
* 1, if there is at least one cscope connection.
*
* If parameters are specified, then the value of {num}
* determines how existence of a cscope connection is checked:
*
* {num} Description of existence check
* ----- ------------------------------
* 0 Same as no parameters (e.g., "cscope_connection()").
* 1 Ignore {prepend}, and use partial string matches for
* {dbpath}.
* 2 Ignore {prepend}, and use exact string matches for
* {dbpath}.
* 3 Use {prepend}, use partial string matches for both
* {dbpath} and {prepend}.
* 4 Use {prepend}, use exact string matches for both
* {dbpath} and {prepend}.
*
* Note: All string comparisons are case sensitive!
*/
#if defined(FEAT_EVAL) || defined(PROTO)
int
cs_connection(num, dbpath, ppath)
int num;
char_u *dbpath;
char_u *ppath;
{
int i;
if (num < 0 || num > 4 || (num > 0 && !dbpath))
return FALSE;
for (i = 0; i < csinfo_size; i++)
{
if (!csinfo[i].fname)
continue;
if (num == 0)
return TRUE;
switch (num)
{
case 1:
if (strstr(csinfo[i].fname, (char *)dbpath))
return TRUE;
break;
case 2:
if (strcmp(csinfo[i].fname, (char *)dbpath) == 0)
return TRUE;
break;
case 3:
if (strstr(csinfo[i].fname, (char *)dbpath)
&& ((!ppath && !csinfo[i].ppath)
|| (ppath
&& csinfo[i].ppath
&& strstr(csinfo[i].ppath, (char *)ppath))))
return TRUE;
break;
case 4:
if ((strcmp(csinfo[i].fname, (char *)dbpath) == 0)
&& ((!ppath && !csinfo[i].ppath)
|| (ppath
&& csinfo[i].ppath
&& (strcmp(csinfo[i].ppath, (char *)ppath) == 0))))
return TRUE;
break;
}
}
return FALSE;
} /* cs_connection */
#endif
/*
* PRIVATE functions
****************************************************************************/
/*
* PRIVATE: cs_add
*
* add cscope database or a directory name (to look for cscope.out)
* to the cscope connection list
*
* MAXPATHL 256
*/
static int
cs_add(eap)
exarg_T *eap UNUSED;
{
char *fname, *ppath, *flags = NULL;
if ((fname = strtok((char *)NULL, (const char *)" ")) == NULL)
{
cs_usage_msg(Add);
return CSCOPE_FAILURE;
}
if ((ppath = strtok((char *)NULL, (const char *)" ")) != NULL)
flags = strtok((char *)NULL, (const char *)" ");
return cs_add_common(fname, ppath, flags);
}
static void
cs_stat_emsg(fname)
char *fname;
{
char *stat_emsg = _("E563: stat(%s) error: %d");
char *buf = (char *)alloc((unsigned)strlen(stat_emsg) + MAXPATHL + 10);
if (buf != NULL)
{
(void)sprintf(buf, stat_emsg, fname, errno);
(void)EMSG(buf);
vim_free(buf);
}
else
(void)EMSG(_("E563: stat error"));
}
/*
* PRIVATE: cs_add_common
*
* the common routine to add a new cscope connection. called by
* cs_add() and cs_reset(). i really don't like to do this, but this
* routine uses a number of goto statements.
*/
static int
cs_add_common(arg1, arg2, flags)
char *arg1; /* filename - may contain environment variables */
char *arg2; /* prepend path - may contain environment variables */
char *flags;
{
struct stat statbuf;
int ret;
char *fname = NULL;
char *fname2 = NULL;
char *ppath = NULL;
int i;
/* get the filename (arg1), expand it, and try to stat it */
if ((fname = (char *)alloc(MAXPATHL + 1)) == NULL)
goto add_err;
expand_env((char_u *)arg1, (char_u *)fname, MAXPATHL);
ret = stat(fname, &statbuf);
if (ret < 0)
{
staterr:
if (p_csverbose)
cs_stat_emsg(fname);
goto add_err;
}
/* get the prepend path (arg2), expand it, and try to stat it */
if (arg2 != NULL)
{
struct stat statbuf2;
if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL)
goto add_err;
expand_env((char_u *)arg2, (char_u *)ppath, MAXPATHL);
ret = stat(ppath, &statbuf2);
if (ret < 0)
goto staterr;
}
/* if filename is a directory, append the cscope database name to it */
if ((statbuf.st_mode & S_IFMT) == S_IFDIR)
{
fname2 = (char *)alloc((unsigned)(strlen(CSCOPE_DBFILE) + strlen(fname) + 2));
if (fname2 == NULL)
goto add_err;
while (fname[strlen(fname)-1] == '/'
#ifdef WIN32
|| fname[strlen(fname)-1] == '\\'
#endif
)
{
fname[strlen(fname)-1] = '\0';
if (fname[0] == '\0')
break;
}
if (fname[0] == '\0')
(void)sprintf(fname2, "/%s", CSCOPE_DBFILE);
else
(void)sprintf(fname2, "%s/%s", fname, CSCOPE_DBFILE);
ret = stat(fname2, &statbuf);
if (ret < 0)
{
if (p_csverbose)
cs_stat_emsg(fname2);
goto add_err;
}
i = cs_insert_filelist(fname2, ppath, flags, &statbuf);
}
#if defined(UNIX)
else if (S_ISREG(statbuf.st_mode) || S_ISLNK(statbuf.st_mode))
#else
/* WIN32 - substitute define S_ISREG from os_unix.h */
else if (((statbuf.st_mode) & S_IFMT) == S_IFREG)
#endif
{
i = cs_insert_filelist(fname, ppath, flags, &statbuf);
}
else
{
if (p_csverbose)
(void)EMSG2(
_("E564: %s is not a directory or a valid cscope database"),
fname);
goto add_err;
}
if (i != -1)
{
if (cs_create_connection(i) == CSCOPE_FAILURE
|| cs_read_prompt(i) == CSCOPE_FAILURE)
{
cs_release_csp(i, TRUE);
goto add_err;
}
if (p_csverbose)
{
msg_clr_eos();
(void)smsg_attr(hl_attr(HLF_R),
(char_u *)_("Added cscope database %s"),
csinfo[i].fname);
}
}
vim_free(fname);
vim_free(fname2);
vim_free(ppath);
return CSCOPE_SUCCESS;
add_err:
vim_free(fname2);
vim_free(fname);
vim_free(ppath);
return CSCOPE_FAILURE;
} /* cs_add_common */
static int
cs_check_for_connections()
{
return (cs_cnt_connections() > 0);
} /* cs_check_for_connections */
static int
cs_check_for_tags()
{
return (p_tags[0] != NUL && curbuf->b_p_tags != NULL);
} /* cs_check_for_tags */
/*
* PRIVATE: cs_cnt_connections
*
* count the number of cscope connections
*/
static int
cs_cnt_connections()
{
short i;
short cnt = 0;
for (i = 0; i < csinfo_size; i++)
{
if (csinfo[i].fname != NULL)
cnt++;
}
return cnt;
} /* cs_cnt_connections */
static void
cs_reading_emsg(idx)
int idx; /* connection index */
{
EMSGN(_("E262: error reading cscope connection %ld"), idx);
}
#define CSREAD_BUFSIZE 2048
/*
* PRIVATE: cs_cnt_matches
*
* count the number of matches for a given cscope connection.
*/
static int
cs_cnt_matches(idx)
int idx;
{
char *stok;
char *buf;
int nlines;
buf = (char *)alloc(CSREAD_BUFSIZE);
if (buf == NULL)
return 0;
for (;;)
{
if (!fgets(buf, CSREAD_BUFSIZE, csinfo[idx].fr_fp))
{
if (feof(csinfo[idx].fr_fp))
errno = EIO;
cs_reading_emsg(idx);
vim_free(buf);
return -1;
}
/*
* If the database is out of date, or there's some other problem,
* cscope will output error messages before the number-of-lines output.
* Display/discard any output that doesn't match what we want.
* Accept "\S*cscope: X lines", also matches "mlcscope".
*/
if ((stok = strtok(buf, (const char *)" ")) == NULL)
continue;
if (strstr((const char *)stok, "cscope:") == NULL)
continue;
if ((stok = strtok(NULL, (const char *)" ")) == NULL)
continue;
nlines = atoi(stok);
if (nlines < 0)
{
nlines = 0;
break;
}
if ((stok = strtok(NULL, (const char *)" ")) == NULL)
continue;
if (strncmp((const char *)stok, "lines", 5))
continue;
break;
}
vim_free(buf);
return nlines;
} /* cs_cnt_matches */
/*
* PRIVATE: cs_create_cmd
*
* Creates the actual cscope command query from what the user entered.
*/
static char *
cs_create_cmd(csoption, pattern)
char *csoption;
char *pattern;
{
char *cmd;
short search;
char *pat;
switch (csoption[0])
{
case '0' : case 's' :
search = 0;
break;
case '1' : case 'g' :
search = 1;
break;
case '2' : case 'd' :
search = 2;
break;
case '3' : case 'c' :
search = 3;
break;
case '4' : case 't' :
search = 4;
break;
case '6' : case 'e' :
search = 6;
break;
case '7' : case 'f' :
search = 7;
break;
case '8' : case 'i' :
search = 8;
break;
default :
(void)EMSG(_("E561: unknown cscope search type"));
cs_usage_msg(Find);
return NULL;
}
/* Skip white space before the patter, except for text and pattern search,
* they may want to use the leading white space. */
pat = pattern;
if (search != 4 && search != 6)
while vim_iswhite(*pat)
++pat;
if ((cmd = (char *)alloc((unsigned)(strlen(pat) + 2))) == NULL)
return NULL;
(void)sprintf(cmd, "%d%s", search, pat);
return cmd;
} /* cs_create_cmd */
/*
* PRIVATE: cs_create_connection
*
* This piece of code was taken/adapted from nvi. do we need to add
* the BSD license notice?
*/
static int
cs_create_connection(i)
int i;
{
#ifdef UNIX
int to_cs[2], from_cs[2];
#endif
int len;
char *prog, *cmd, *ppath = NULL;
#ifdef WIN32
int fd;
SECURITY_ATTRIBUTES sa;
PROCESS_INFORMATION pi;
STARTUPINFO si;
BOOL pipe_stdin = FALSE, pipe_stdout = FALSE;
HANDLE stdin_rd, stdout_rd;
HANDLE stdout_wr, stdin_wr;
BOOL created;
# ifdef __BORLANDC__
# define OPEN_OH_ARGTYPE long
# else
# if (_MSC_VER >= 1300)
# define OPEN_OH_ARGTYPE intptr_t
# else
# define OPEN_OH_ARGTYPE long
# endif
# endif
#endif
#if defined(UNIX)
/*
* Cscope reads from to_cs[0] and writes to from_cs[1]; vi reads from
* from_cs[0] and writes to to_cs[1].
*/
to_cs[0] = to_cs[1] = from_cs[0] = from_cs[1] = -1;
if (pipe(to_cs) < 0 || pipe(from_cs) < 0)
{
(void)EMSG(_("E566: Could not create cscope pipes"));
err_closing:
if (to_cs[0] != -1)
(void)close(to_cs[0]);
if (to_cs[1] != -1)
(void)close(to_cs[1]);
if (from_cs[0] != -1)
(void)close(from_cs[0]);
if (from_cs[1] != -1)
(void)close(from_cs[1]);
return CSCOPE_FAILURE;
}
switch (csinfo[i].pid = fork())
{
case -1:
(void)EMSG(_("E622: Could not fork for cscope"));
goto err_closing;
case 0: /* child: run cscope. */
if (dup2(to_cs[0], STDIN_FILENO) == -1)
PERROR("cs_create_connection 1");
if (dup2(from_cs[1], STDOUT_FILENO) == -1)
PERROR("cs_create_connection 2");
if (dup2(from_cs[1], STDERR_FILENO) == -1)
PERROR("cs_create_connection 3");
/* close unused */
(void)close(to_cs[1]);
(void)close(from_cs[0]);
#else
/* WIN32 */
/* Create pipes to communicate with cscope */
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle = TRUE;
sa.lpSecurityDescriptor = NULL;
if (!(pipe_stdin = CreatePipe(&stdin_rd, &stdin_wr, &sa, 0))
|| !(pipe_stdout = CreatePipe(&stdout_rd, &stdout_wr, &sa, 0)))
{
(void)EMSG(_("E566: Could not create cscope pipes"));
err_closing:
if (pipe_stdin)
{
CloseHandle(stdin_rd);
CloseHandle(stdin_wr);
}
if (pipe_stdout)
{
CloseHandle(stdout_rd);
CloseHandle(stdout_wr);
}
return CSCOPE_FAILURE;
}
#endif
/* expand the cscope exec for env var's */
if ((prog = (char *)alloc(MAXPATHL + 1)) == NULL)
{
#ifdef UNIX
return CSCOPE_FAILURE;
#else
/* WIN32 */
goto err_closing;
#endif
}
expand_env((char_u *)p_csprg, (char_u *)prog, MAXPATHL);
/* alloc space to hold the cscope command */
len = (int)(strlen(prog) + strlen(csinfo[i].fname) + 32);
if (csinfo[i].ppath)
{
/* expand the prepend path for env var's */
if ((ppath = (char *)alloc(MAXPATHL + 1)) == NULL)
{
vim_free(prog);
#ifdef UNIX
return CSCOPE_FAILURE;
#else
/* WIN32 */
goto err_closing;
#endif
}
expand_env((char_u *)csinfo[i].ppath, (char_u *)ppath, MAXPATHL);
len += (int)strlen(ppath);
}
if (csinfo[i].flags)
len += (int)strlen(csinfo[i].flags);
if ((cmd = (char *)alloc(len)) == NULL)
{
vim_free(prog);
vim_free(ppath);
#ifdef UNIX
return CSCOPE_FAILURE;
#else
/* WIN32 */
goto err_closing;
#endif
}
/* run the cscope command; is there execl for non-unix systems? */
#if defined(UNIX)
(void)sprintf(cmd, "exec %s -dl -f %s", prog, csinfo[i].fname);
#else
/* WIN32 */
(void)sprintf(cmd, "%s -dl -f %s", prog, csinfo[i].fname);
#endif
if (csinfo[i].ppath != NULL)
{
(void)strcat(cmd, " -P");
(void)strcat(cmd, csinfo[i].ppath);
}
if (csinfo[i].flags != NULL)
{
(void)strcat(cmd, " ");
(void)strcat(cmd, csinfo[i].flags);
}
# ifdef UNIX
/* on Win32 we still need prog */
vim_free(prog);
# endif
vim_free(ppath);
#if defined(UNIX)
if (execl("/bin/sh", "sh", "-c", cmd, (char *)NULL) == -1)
PERROR(_("cs_create_connection exec failed"));
exit(127);
/* NOTREACHED */
default: /* parent. */
/*
* Save the file descriptors for later duplication, and
* reopen as streams.
*/
if ((csinfo[i].to_fp = fdopen(to_cs[1], "w")) == NULL)
PERROR(_("cs_create_connection: fdopen for to_fp failed"));
if ((csinfo[i].fr_fp = fdopen(from_cs[0], "r")) == NULL)
PERROR(_("cs_create_connection: fdopen for fr_fp failed"));
/* close unused */