It's a pretty common pattern so create a function for it. Signed-off-by: Ben Pfaff <b...@ovn.org> --- lib/dpif-netdev.c | 6 ++---- lib/jsonrpc.c | 2 +- lib/ovsdb-error.c | 6 +++--- lib/syslog-libc.c | 4 ++-- lib/util.c | 8 +++++++- lib/util.h | 1 + lib/vlog.c | 2 +- ofproto/ofproto-dpif-ipfix.c | 6 ------ ofproto/ofproto-dpif-sflow.c | 6 +++--- ofproto/ofproto.c | 5 ++--- ovn/utilities/ovn-nbctl.c | 2 +- ovn/utilities/ovn-sbctl.c | 2 +- ovsdb/replication.c | 2 +- utilities/ovs-vsctl.c | 2 +- vswitchd/bridge.c | 8 ++------ vtep/vtep-ctl.c | 2 +- 16 files changed, 29 insertions(+), 35 deletions(-)
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c index 70f320d..ff4227c 100644 --- a/lib/dpif-netdev.c +++ b/lib/dpif-netdev.c @@ -2531,7 +2531,7 @@ dpif_netdev_pmd_set(struct dpif *dpif, const char *cmask) if (!cmask_equals(dp->requested_pmd_cmask, cmask)) { free(dp->requested_pmd_cmask); - dp->requested_pmd_cmask = cmask ? xstrdup(cmask) : NULL; + dp->requested_pmd_cmask = nullable_xstrdup(cmask); } return 0; @@ -2690,9 +2690,7 @@ reconfigure_pmd_threads(struct dp_netdev *dp) /* Reconfigures the cpu mask. */ ovs_numa_set_cpu_mask(dp->requested_pmd_cmask); free(dp->pmd_cmask); - dp->pmd_cmask = dp->requested_pmd_cmask - ? xstrdup(dp->requested_pmd_cmask) - : NULL; + dp->pmd_cmask = nullable_xstrdup(dp->requested_pmd_cmask); /* Restores the non-pmd. */ dp_netdev_set_nonpmd(dp); diff --git a/lib/jsonrpc.c b/lib/jsonrpc.c index 1112b4a..aba742c 100644 --- a/lib/jsonrpc.c +++ b/lib/jsonrpc.c @@ -512,7 +512,7 @@ jsonrpc_create(enum jsonrpc_msg_type type, const char *method, { struct jsonrpc_msg *msg = xmalloc(sizeof *msg); msg->type = type; - msg->method = method ? xstrdup(method) : NULL; + msg->method = nullable_xstrdup(method); msg->params = params; msg->result = result; msg->error = error; diff --git a/lib/ovsdb-error.c b/lib/ovsdb-error.c index d3549cb..dbe8149 100644 --- a/lib/ovsdb-error.c +++ b/lib/ovsdb-error.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc. +/* Copyright (c) 2009, 2010, 2011, 2012, 2016 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -183,8 +183,8 @@ ovsdb_error_clone(const struct ovsdb_error *old) if (old) { struct ovsdb_error *new = xmalloc(sizeof *new); new->tag = old->tag; - new->details = old->details ? xstrdup(old->details) : NULL; - new->syntax = old->syntax ? xstrdup(old->syntax) : NULL; + new->details = nullable_xstrdup(old->details); + new->syntax = nullable_xstrdup(old->syntax); new->errno_ = old->errno_; return new; } else { diff --git a/lib/syslog-libc.c b/lib/syslog-libc.c index 8858c3c..b702d41 100644 --- a/lib/syslog-libc.c +++ b/lib/syslog-libc.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015 Nicira, Inc. + * Copyright (c) 2015, 2016 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -64,7 +64,7 @@ syslog_libc_open(struct syslogger *this OVS_UNUSED, int facility) * 'program_name', so make a private copy just for openlog(). (We keep * a pointer to the private copy to suppress memory leak warnings in * case openlog() does make its own copy.) */ - ident = program_name ? xstrdup(program_name) : NULL; + ident = nullable_xstrdup(program_name); openlog(ident, LOG_NDELAY, facility); } diff --git a/lib/util.c b/lib/util.c index 6ca04ad..e1dc3d2 100644 --- a/lib/util.c +++ b/lib/util.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc. + * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -151,6 +151,12 @@ xstrdup(const char *s) return xmemdup0(s, strlen(s)); } +char * MALLOC_LIKE +nullable_xstrdup(const char *s) +{ + return s ? xstrdup(s) : NULL; +} + char * xvasprintf(const char *format, va_list args) { diff --git a/lib/util.h b/lib/util.h index 7be4a30..e738c9f 100644 --- a/lib/util.h +++ b/lib/util.h @@ -112,6 +112,7 @@ void *xrealloc(void *, size_t); void *xmemdup(const void *, size_t) MALLOC_LIKE; char *xmemdup0(const char *, size_t) MALLOC_LIKE; char *xstrdup(const char *) MALLOC_LIKE; +char *nullable_xstrdup(const char *) MALLOC_LIKE; char *xasprintf(const char *format, ...) OVS_PRINTF_FORMAT(1, 2) MALLOC_LIKE; char *xvasprintf(const char *format, va_list) OVS_PRINTF_FORMAT(1, 0) MALLOC_LIKE; void *x2nrealloc(void *p, size_t *n, size_t s); diff --git a/lib/vlog.c b/lib/vlog.c index 30b5bc2..333337b 100644 --- a/lib/vlog.c +++ b/lib/vlog.c @@ -426,7 +426,7 @@ vlog_reopen_log_file(void) char *fn; ovs_mutex_lock(&log_file_mutex); - fn = log_file_name ? xstrdup(log_file_name) : NULL; + fn = nullable_xstrdup(log_file_name); ovs_mutex_unlock(&log_file_mutex); if (fn) { diff --git a/ofproto/ofproto-dpif-ipfix.c b/ofproto/ofproto-dpif-ipfix.c index 35f481d..5744abb 100644 --- a/ofproto/ofproto-dpif-ipfix.c +++ b/ofproto/ofproto-dpif-ipfix.c @@ -469,12 +469,6 @@ nullable_string_is_equal(const char *a, const char *b) return a ? b && !strcmp(a, b) : !b; } -static char * -nullable_xstrdup(const char *s) -{ - return s ? xstrdup(s) : NULL; -} - static bool ofproto_ipfix_bridge_exporter_options_equal( const struct ofproto_ipfix_bridge_exporter_options *a, diff --git a/ofproto/ofproto-dpif-sflow.c b/ofproto/ofproto-dpif-sflow.c index 5d26b7c..7d0aa36 100644 --- a/ofproto/ofproto-dpif-sflow.c +++ b/ofproto/ofproto-dpif-sflow.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc. + * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc. * Copyright (c) 2009 InMon Corp. * * Licensed under the Apache License, Version 2.0 (the "License"); @@ -115,8 +115,8 @@ ofproto_sflow_options_clone(const struct ofproto_sflow_options *old) { struct ofproto_sflow_options *new = xmemdup(old, sizeof *old); sset_clone(&new->targets, &old->targets); - new->agent_device = old->agent_device ? xstrdup(old->agent_device) : NULL; - new->control_ip = old->control_ip ? xstrdup(old->control_ip) : NULL; + new->agent_device = nullable_xstrdup(old->agent_device); + new->control_ip = nullable_xstrdup(old->control_ip); return new; } diff --git a/ofproto/ofproto.c b/ofproto/ofproto.c index 087b321..cf3235a 100644 --- a/ofproto/ofproto.c +++ b/ofproto/ofproto.c @@ -784,8 +784,7 @@ void ofproto_set_cpu_mask(const char *cmask) { free(pmd_cpu_mask); - - pmd_cpu_mask = cmask ? xstrdup(cmask) : NULL; + pmd_cpu_mask = nullable_xstrdup(cmask); } void @@ -811,7 +810,7 @@ void ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc) { free(p->dp_desc); - p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL; + p->dp_desc = nullable_xstrdup(dp_desc); } int diff --git a/ovn/utilities/ovn-nbctl.c b/ovn/utilities/ovn-nbctl.c index 7789cdd..345647a 100644 --- a/ovn/utilities/ovn-nbctl.c +++ b/ovn/utilities/ovn-nbctl.c @@ -235,7 +235,7 @@ parse_options(int argc, char *argv[], struct shash *local_options) } shash_add_nocopy(local_options, xasprintf("--%s", options[idx].name), - optarg ? xstrdup(optarg) : NULL); + nullable_xstrdup(optarg)); break; case 'h': diff --git a/ovn/utilities/ovn-sbctl.c b/ovn/utilities/ovn-sbctl.c index c0ee518..a12b247 100644 --- a/ovn/utilities/ovn-sbctl.c +++ b/ovn/utilities/ovn-sbctl.c @@ -249,7 +249,7 @@ parse_options(int argc, char *argv[], struct shash *local_options) } shash_add_nocopy(local_options, xasprintf("--%s", options[idx].name), - optarg ? xstrdup(optarg) : NULL); + nullable_xstrdup(optarg)); break; case 'h': diff --git a/ovsdb/replication.c b/ovsdb/replication.c index 1fa0f25..9bf3721 100644 --- a/ovsdb/replication.c +++ b/ovsdb/replication.c @@ -115,7 +115,7 @@ replication_run(struct shash *all_dbs) void set_remote_ovsdb_server(const char *remote_server) { - remote_ovsdb_server = remote_server ? xstrdup(remote_server) : NULL; + remote_ovsdb_server = nullable_xstrdup(remote_server); } void diff --git a/utilities/ovs-vsctl.c b/utilities/ovs-vsctl.c index 4d7f9f9..c4ae692 100644 --- a/utilities/ovs-vsctl.c +++ b/utilities/ovs-vsctl.c @@ -287,7 +287,7 @@ parse_options(int argc, char *argv[], struct shash *local_options) } shash_add_nocopy(local_options, xasprintf("--%s", options[idx].name), - optarg ? xstrdup(optarg) : NULL); + nullable_xstrdup(optarg)); break; case 'h': diff --git a/vswitchd/bridge.c b/vswitchd/bridge.c index f8f8964..917a80c 100644 --- a/vswitchd/bridge.c +++ b/vswitchd/bridge.c @@ -1212,9 +1212,7 @@ bridge_configure_ipfix(struct bridge *br) "enable-output-sampling", false); virtual_obs_id = smap_get(&be_cfg->other_config, "virtual_obs_id"); - be_opts.virtual_obs_id = (virtual_obs_id - ? xstrdup(virtual_obs_id) - : NULL); + be_opts.virtual_obs_id = nullable_xstrdup(virtual_obs_id); } if (n_fe_opts > 0) { @@ -1236,9 +1234,7 @@ bridge_configure_ipfix(struct bridge *br) "enable-tunnel-sampling", true); virtual_obs_id = smap_get(&fe_cfg->ipfix->other_config, "virtual_obs_id"); - opts->virtual_obs_id = (virtual_obs_id - ? xstrdup(virtual_obs_id) - : NULL); + opts->virtual_obs_id = nullable_xstrdup(virtual_obs_id); opts++; } } diff --git a/vtep/vtep-ctl.c b/vtep/vtep-ctl.c index 5c18971..759150f 100644 --- a/vtep/vtep-ctl.c +++ b/vtep/vtep-ctl.c @@ -237,7 +237,7 @@ parse_options(int argc, char *argv[], struct shash *local_options) } shash_add_nocopy(local_options, xasprintf("--%s", options[idx].name), - optarg ? xstrdup(optarg) : NULL); + nullable_xstrdup(optarg)); break; case 'h': -- 2.1.3 _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev