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* etags.c (<errno.h>): #include added.

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(etags_getcwd): Check return value from getcwd.
This commit is contained in:
Francesco Potortì 1994-11-16 10:29:33 +00:00
parent da2792e0e8
commit dcc89e637e
1 changed files with 15 additions and 7 deletions
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22
lib-src/etags.c
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@ -52,6 +52,10 @@ char pot_etags_version[] = "@(#) pot revision number is 10.32";
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#ifndef errno
extern int errno;
#endif
#include <sys/types.h>
#include <sys/stat.h>
@ -430,7 +434,7 @@ main (argc, argv)
if (!CTAGS)
typedefs = typedefs_and_cplusplus = constantypedefs = 1;
for (;;)
while (1)
{
int opt;
opt = getopt_long (argc, argv, "aCdDf:o:StTi:BuvxwVH", longopts, 0);
@ -3194,25 +3198,28 @@ etags_getcwd ()
}
#else /* not DOS_NT */
/* Does the same work as the system V getcwd, but does not need to
guess buffer size in advance. Included mostly for compatibility. */
guess buffer size in advance. */
char *
etags_getcwd ()
{
char *buf;
int bufsize = 256;
char *buf = xnew (bufsize, char);
#ifdef HAVE_GETCWD
do
while (getcwd (buf, bufsize / 2) == NULL)
{
buf = xnew (bufsize, char);
if (errno != ERANGE)
{
perror ("pwd");
exit (BAD);
}
bufsize *= 2;
buf = xnew (bufsize, char);
}
while (getcwd (buf, bufsize / 2) == NULL);
#else
do
{
FILE *pipe;
buf = xnew (bufsize, char);
pipe = (FILE *) popen ("pwd 2>/dev/null", "r");
if (pipe == NULL)
@ -3228,6 +3235,7 @@ etags_getcwd ()
pclose (pipe);
bufsize *= 2;
buf = xnew (bufsize, char);
} while (buf[strlen (buf) - 1] != '\n');
#endif