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pwdx: fix compiler warning

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pwdx.c:96:3: warning: ISO C90 forbids variable length array 'buf' [-Wvla]

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
Sami Kerola 2012-02-25 22:24:58 +01:00 committed by Craig Small
parent 5d04a5a75c
commit 1e489c7bc9
1 changed files with 8 additions and 4 deletions
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12
pwdx.c
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@ -22,6 +22,7 @@
#include "proc/version.h"
#include "c.h"
#include "nls.h"
#include "xalloc.h"
static void __attribute__ ((__noreturn__)) usage(FILE * out)
{
@ -91,9 +92,11 @@ int main(int argc, char *argv[])
for (i = 0; i < argc; i++) {
char *s;
ssize_t len;
ssize_t len, buflen;
/* Constant 10 is the length of strings "/proc/" + "/cwd" + 1 */
char buf[10 + strlen(argv[i]) + 1];
char *buf;
buflen = 10 + strlen(argv[i]) + 1;
buf = xmalloc(buflen);
if (check_pid_argument(argv[i]))
xerrx(EXIT_FAILURE, _("invalid process id: %s"),
@ -104,9 +107,9 @@ int main(int argc, char *argv[])
* the first char is possible
*/
if (argv[i][0] != '/')
snprintf(buf, sizeof buf, "/proc/%s/cwd", argv[i]);
snprintf(buf, buflen, "/proc/%s/cwd", argv[i]);
else
snprintf(buf, sizeof buf, "%s/cwd", argv[i]);
snprintf(buf, buflen, "%s/cwd", argv[i]);
/*
* buf contains /proc/NNNN/cwd symlink name
@ -116,6 +119,7 @@ int main(int argc, char *argv[])
alloclen *= 2;
pathbuf = realloc(pathbuf, alloclen);
}
free(buf);
if (len < 0) {
s = strerror(errno == ENOENT ? ESRCH : errno);