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occtl: allow empty pager to be specified on compile time

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This commit is contained in:
Nikos Mavrogiannopoulos
2015-10-28 12:56:27 +01:00
parent c1e66c181f
commit cfd224c9c8
2 changed files with 18 additions and 7 deletions
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10
configure.ac
View File

@@ -316,10 +316,14 @@ if [ test "$anyconnect_enabled" = "yes" ];then
AC_DEFINE([ANYCONNECT_CLIENT_COMPAT], [], [Enable Anyconnect compatibility])
fi
pager_set=0
AC_ARG_WITH(pager,
AS_HELP_STRING([--with-pager=PAGER], [set a specific pager for occtl]),
occtl_pager=$withval)
if [ test -z "$occtl_pager" ];then
AS_HELP_STRING([--with-pager=PAGER], [set a specific pager for occtl; use "" for no pager]),
occtl_pager=$withval
pager_set=1
)
if [ test $pager_set = 0 ];then
AC_DEFINE_UNQUOTED([OCCTL_PAGER], ["less"], [The default pager for occtl])
else
AC_DEFINE_UNQUOTED([OCCTL_PAGER], ["$occtl_pager"], [The default pager for occtl])

9
src/occtl-pager.c
View File

@@ -29,6 +29,7 @@
static const char* get_pager(void)
{
char* pager;
pager = getenv("OCCTL_PAGER");
if (pager == NULL)
pager = getenv("PAGER");
@@ -42,6 +43,7 @@ char* pager;
FILE* pager_start(cmd_params_st *params)
{
FILE *fp;
const char *pager;
if (params && params->no_pager != 0)
return stdout;
@@ -51,10 +53,15 @@ FILE *fp;
return stdout;
#endif
pager = get_pager();
if (pager == NULL || pager[0] == 0)
return stdout;
if (!getenv("LESS")) {
setenv("LESS", "FRSX", 1);
}
fp = popen(get_pager(), "w");
fp = popen(pager, "w");
if (fp == NULL) { /* no pager */
fprintf(stderr, "unable to start pager; check your $PAGER environment variable\n");