string.h File Reference

#include <stddef.h>
#include <bits/string.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_ONLY)
int __pure	strnicmp (const char *s1, const char *s2, size_t len) __nonnull
	strnicmp - Case insensitive, length-limited string comparison : One string : The other string : the maximum number of characters to compare
char *	strcpy (char *dest, const char *src) __nonnull
	strcpy - Copy a NUL terminated string : Where to copy the string to : Where to copy the string from
char *	strncpy (char *dest, const char *src, size_t count) __nonnull
	strncpy - Copy a length-limited, NUL-terminated string : Where to copy the string to : Where to copy the string from : The maximum number of bytes to copy
char *	strcat (char *dest, const char *src) __nonnull
	strcat - Append one NUL-terminated string to another : The string to be appended to : The string to append to it
char *	strncat (char *dest, const char *src, size_t count) __nonnull
	strncat - Append a length-limited, NUL-terminated string to another : The string to be appended to : The string to append to it : The maximum numbers of bytes to copy
int __pure	strcmp (const char *cs, const char *ct) __nonnull
	strcmp - Compare two strings : One string : Another string
int __pure	strncmp (const char *cs, const char *ct, size_t count) __nonnull
char *__pure	strchr (const char *s, int c) __nonnull
	strchr - Find the first occurrence of a character in a string : The string to be searched : The character to search for
char *__pure	strrchr (const char *s, int c) __nonnull
	strrchr - Find the last occurrence of a character in a string : The string to be searched : The character to search for
size_t __pure	strlen (const char *s) __nonnull
size_t __pure	strnlen (const char *s, size_t count) __nonnull
	strnlen - Find the length of a length-limited string : The string to be sized : The maximum number of bytes to search
size_t __pure	strspn (const char *s, const char *accept) __nonnull
	strspn - Calculate the length of the initial substring of which only contain letters in : The string to be searched : The string to search for
size_t __pure	strcspn (const char *s, const char *reject) __nonnull
	strcspn - Calculate the length of the initial substring of which only contain letters not in : The string to be searched : The string to search for
char *__pure	strpbrk (const char *cs, const char *ct) __nonnull
	strpbrk - Find the first occurrence of a set of characters : The string to be searched : The characters to search for
char *	strtok (char *s, const char *ct) __nonnull
	strtok - Split a string into tokens : The string to be searched : The characters to search for
char *	strsep (char **s, const char *ct) __nonnull
	strsep - Split a string into tokens : The string to be searched : The characters to search for
void *	memset (void *s, int c, size_t count) __nonnull
void *	memmove (void *dest, const void *src, size_t count) __nonnull
int __pure	memcmp (const void *cs, const void *ct, size_t count) __nonnull
	memcmp - Compare two areas of memory : One area of memory : Another area of memory : The size of the area.
void *__pure	memscan (const void *addr, int c, size_t size) __nonnull
	memscan - Find a character in an area of memory.
char *__pure	strstr (const char *s1, const char *s2) __nonnull
	strstr - Find the first substring in a NUL terminated string : The string to be searched : The string to search for
void *__pure	memchr (const void *s, int c, size_t n) __nonnull
	memchr - Find a character in an area of memory.
char *__malloc	strdup (const char *s) __nonnull
char *__malloc	strndup (const char *s, size_t n) __nonnull
const char *__pure	strerror (int errno)
	Retrieve string representation of error number.

---

Function Documentation

FILE_LICENCE

(

GPL2_ONLY

)

int __pure strnicmp	(	const char *	s1,
		const char *	s2,
		size_t	len
	)

strnicmp - Case insensitive, length-limited string comparison : One string : The other string : the maximum number of characters to compare

Definition at line 46 of file stringextra.c.

References tolower().

{
        /* Yes, Virginia, it had better be unsigned */
        unsigned char c1, c2;

        c1 = 0; c2 = 0;
        if (len) {
                do {
                        c1 = *s1; c2 = *s2;
                        s1++; s2++;
                        if (!c1)
                                break;
                        if (!c2)
                                break;
                        if (c1 == c2)
                                continue;
                        c1 = tolower(c1);
                        c2 = tolower(c2);
                        if (c1 != c2)
                                break;
                } while (--len);
        }
        return (int)c1 - (int)c2;
}

char* strcpy	(	char *	dest,
		const char *	src
	)

strcpy - Copy a NUL terminated string : Where to copy the string to : Where to copy the string from

Definition at line 39 of file string.c.

Referenced by apply_iscsi_string_setting(), ib_srp_parse_root_path(), ibft_set_string(), iscsi_parse_root_path(), net80211_prepare_assoc(), net80211_probe_start(), net80211_probe_step(), parse_setting_name(), and tftp_send_error().

{
        char *tmp = dest;

        while ((*dest++ = *src++) != '\0')
                /* nothing */;
        return tmp;
}

char* strncpy	(	char *	dest,
		const char *	src,
		size_t	count
	)

strncpy - Copy a length-limited, NUL-terminated string : Where to copy the string to : Where to copy the string from : The maximum number of bytes to copy

Note that unlike userspace strncpy, this does not NUL-pad the buffer. However, the result is not NUL-terminated if the source exceeds bytes.

Definition at line 60 of file string.c.

Referenced by efi_snp_driver_start(), image_set_name(), slk_set(), and undibus_probe().

{
        char *tmp = dest;

        while (count-- && (*dest++ = *src++) != '\0')
                /* nothing */;

        return tmp;
}

char* strcat	(	char *	dest,
		const char *	src
	)

strcat - Append one NUL-terminated string to another : The string to be appended to : The string to append to it

Definition at line 77 of file string.c.

Referenced by _print_label().

{
        char *tmp = dest;

        while (*dest)
                dest++;
        while ((*dest++ = *src++) != '\0')
                ;

        return tmp;
}

char* strncat	(	char *	dest,
		const char *	src,
		size_t	count
	)

strncat - Append a length-limited, NUL-terminated string to another : The string to be appended to : The string to append to it : The maximum numbers of bytes to copy

Note that in contrast to strncpy, strncat ensures the result is terminated.

Definition at line 84 of file stringextra.c.

{
        char *tmp = dest;

        if (count) {
                while (*dest)
                        dest++;
                while ((*dest++ = *src++)) {
                        if (--count == 0) {
                                *dest = '\0';
                                break;
                        }
                }
        }

        return tmp;
}

int __pure strcmp	(	const char *	cs,
		const char *	ct
	)

strcmp - Compare two strings : One string : Another string

Definition at line 96 of file string.c.

Referenced by bzimage_parse_cmdline(), digest_exec(), execv(), find_child_settings(), find_gdb_transport(), find_image(), find_netdev(), find_setting(), find_setting_type(), iscsi_handle_authmethod_value(), iscsi_handle_chap_a_value(), iscsi_handle_chap_n_value(), net80211_check_settings_update(), net80211_probe_step(), netboot(), parse_settings_name(), setting_cmp(), sleep_exec(), test_parse_unparse(), test_resolve(), time_exec(), and xfer_open_uri().

{
        register signed char __res;

        while (1) {
                if ((__res = *cs - *ct++) != 0 || !*cs++)
                        break;
        }

        return __res;
}

int __pure strncmp	(	const char *	cs,
		const char *	ct,
		size_t	count
	)

Referenced by aoe_parse_root_path(), boot_root_path(), dhcp_rx_offer(), http_rx_response(), iscsi_handle_string(), match_long_option(), parse_uri(), undinet_probe(), and wince_probe().

char* __pure strchr	(	const char *	s,
		int	c
	)

strchr - Find the first occurrence of a character in a string : The string to be searched : The character to search for

Definition at line 144 of file string.c.

References NULL.

Referenced by comboot_fetch_kernel(), dns_qualify_name(), http_rx_response(), iscsi_handle_targetaddress_value(), parse_setting_name(), parse_settings_name(), parse_uri(), slam_parse_multicast_address(), and tftp_process_multicast().

{
        for(; *s != (char) c; ++s)
                if (*s == '\0')
                        return NULL;
        return (char *) s;
}

char* __pure strrchr	(	const char *	s,
		int	c
	)

strrchr - Find the last occurrence of a character in a string : The string to be searched : The character to search for

Definition at line 159 of file string.c.

References NULL, and strlen().

Referenced by basename(), com32_identify(), comboot_identify(), and dirname().

{
       const char *p = s + strlen(s);
       do {
           if (*p == (char)c)
               return (char *)p;
       } while (--p >= s);
       return NULL;
}

size_t __pure strlen

(

const char *

s

)

Referenced by _print_label(), apply_iscsi_string_setting(), autovivify_child_settings(), base64_encode(), boot_next_server_and_filename(), boot_root_path(), bzimage_load_initrd(), bzimage_set_cmdline(), comboot_copy_cmdline(), draw_editbox(), draw_setting(), edit_string(), fetchf_named_setting(), generic_settings_store(), http_step(), ib_srp_parse_byte_string(), ib_srp_parse_root_path(), ibft_set_string(), imgfetch(), imgfill_cmdline(), init_editbox(), insert_delete(), iscsi_handle_chap_i_value(), iscsi_handle_chap_r_value(), iscsi_handle_string(), iscsi_parse_root_path(), iwlist(), login_ui(), match_long_option(), net80211_marshal_request_info(), parse_settings_name(), parse_uri(), prf_sha1(), resolv(), resolve_path(), slam_parse_multicast_address(), storef_hex(), storef_named_setting(), storef_string(), storef_uristring(), strndup(), strrchr(), strstr(), sync_console(), tftp_process_multicast(), tftp_send_error(), tftp_send_rrq(), trivial_strlen_user(), and wpa_psk_start().

size_t __pure strnlen	(	const char *	s,
		size_t	count
	)

strnlen - Find the length of a length-limited string : The string to be sized : The maximum number of bytes to search

Definition at line 191 of file string.c.

Referenced by iscsi_handle_strings(), tftp_rx_oack(), and used_len_string().

{
        const char *sc;

        for (sc = s; count-- && *sc != '\0'; ++sc)
                /* nothing */;
        return sc - s;
}

size_t __pure strspn	(	const char *	s,
		const char *	accept
	)

strspn - Calculate the length of the initial substring of which only contain letters in : The string to be searched : The string to search for

Definition at line 110 of file stringextra.c.

Referenced by strtok().

{
        const char *p;
        const char *a;
        size_t count = 0;

        for (p = s; *p != '\0'; ++p) {
                for (a = accept; *a != '\0'; ++a) {
                        if (*p == *a)
                                break;
                }
                if (*a == '\0')
                        return count;
                ++count;
        }

        return count;
}

size_t __pure strcspn	(	const char *	s,
		const char *	reject
	)

strcspn - Calculate the length of the initial substring of which only contain letters not in : The string to be searched : The string to search for

Definition at line 137 of file stringextra.c.

References r.

{
        const char *p;
        const char *r;
        size_t count = 0;

        for (p = s; *p != '\0'; ++p) {
                for (r = reject; *r != '\0'; ++r) {
                        if (*p == *r)
                                return count;
                }
                ++count;
        }

        return count;
}

char* __pure strpbrk	(	const char *	cs,
		const char *	ct
	)

strpbrk - Find the first occurrence of a set of characters : The string to be searched : The characters to search for

Definition at line 161 of file stringextra.c.

References NULL.

Referenced by strsep(), and strtok().

{
        const char *sc1,*sc2;

        for( sc1 = cs; *sc1 != '\0'; ++sc1) {
                for( sc2 = ct; *sc2 != '\0'; ++sc2) {
                        if (*sc1 == *sc2)
                                return (char *) sc1;
                }
        }
        return NULL;
}

char* strtok	(	char *	s,
		const char *	ct
	)

strtok - Split a string into tokens : The string to be searched : The characters to search for

WARNING: strtok is deprecated, use strsep instead.

Definition at line 183 of file stringextra.c.

References ___strtok, NULL, strpbrk(), and strspn().

{
        char *sbegin, *send;

        sbegin  = s ? s : ___strtok;
        if (!sbegin) {
                return NULL;
        }
        sbegin += strspn(sbegin,ct);
        if (*sbegin == '\0') {
                ___strtok = NULL;
                return( NULL );
        }
        send = strpbrk( sbegin, ct);
        if (send && *send != '\0')
                *send++ = '\0';
        ___strtok = send;
        return (sbegin);
}

char* strsep	(	char **	s,
		const char *	ct
	)

strsep - Split a string into tokens : The string to be searched : The characters to search for

strsep() updates to point after the token, ready for the next call.

It returns empty tokens, too, behaving exactly like the libc function of that name. In fact, it was stolen from glibc2 and de-fancy-fied. Same semantics, slimmer shape. ;)

Definition at line 216 of file stringextra.c.

References NULL, and strpbrk().

{
        char *sbegin = *s, *end;

        if (sbegin == NULL)
                return NULL;

        end = strpbrk(sbegin, ct);
        if (end)
                *end++ = '\0';
        *s = end;

        return sbegin;
}

void* memset	(	void *	s,
		int	c,
		size_t	count
	)

Referenced by __vxge_hw_fifo_create(), __vxge_hw_vp_initialize(), __vxge_hw_vp_terminate(), _print_label(), a3c90x_probe(), a3c90x_setup_tx_ring(), add_ndp_entry(), add_tls(), aes_wrap(), amd8111e_probe(), amd8111e_transmit(), ansiesc_process(), aoe_send_command(), aout_download(), arbel_alloc_icm(), arbel_cmd(), arbel_complete(), arbel_create_cq(), arbel_create_eq(), arbel_create_qp(), arbel_create_recv_wq(), arbel_create_send_wq(), arbel_destroy_eq(), arbel_mcast_detach(), arbel_modify_qp(), arbel_open(), arbel_post_send(), arbel_probe(), arbel_setup_mpt(), arbel_start_firmware(), arp_resolve(), ata_identify(), ata_read(), ata_write(), ath5k_attach(), ath5k_config(), ath5k_desc_alloc(), ath5k_handle_rx(), ath5k_hw_attach(), ath5k_hw_setup_2word_tx_desc(), ath5k_hw_setup_4word_tx_desc(), ath5k_hw_setup_rx_desc(), ath5k_hw_setup_tx_queue(), ath5k_hw_txpower(), ath5k_tx_processq(), atl1e_clean_rx_ring(), atl1e_clean_tx_ring(), atl1e_get_tpd(), atl1e_setup_ring_resources(), b44_init_rx_ring(), b44_init_tx_ring(), b44_probe(), bi_divide(), bi_export(), bi_import(), bi_int_multiply(), bnx2_alloc_mem(), bnx2_init_rx_ring(), bnx2_probe(), bnx2_transmit(), bzimage_load_initrd(), bzimage_parse_header(), ccmp_cbc_mac(), chap_finish(), dhcp_create_packet(), dhcppkt_store(), draw_editbox(), draw_setting(), e1000_probe(), e1000_process_rx_packets(), e1000_process_tx_packets(), e1000_setup_rx_resources(), e1000_setup_tx_resources(), e1000_update_mc_addr_list_generic(), e1000e_probe(), e1000e_process_rx_packets(), e1000e_process_tx_packets(), e1000e_setup_rx_resources(), e1000e_setup_tx_resources(), e1000e_update_mc_addr_list_generic(), eapol_key_rx(), efab_alloc_resources(), efab_free_resources(), efab_probe(), efi_snp_driver_start(), efi_snp_statistics(), eisabus_probe(), eltorito_exec(), enable_multicast(), eth_probe(), fetch_setting(), fetch_string_setting(), fnrec_reset(), ftp_open(), gdbudp_send(), get_cached_dhcpack(), get_cpuinfo(), get_memmap(), get_random_NZ(), hermon_alloc_icm(), hermon_alloc_mtt(), hermon_cmd(), hermon_complete(), hermon_create_cq(), hermon_create_eq(), hermon_create_qp(), hermon_destroy_eq(), hermon_dump_qpctx(), hermon_free_icm(), hermon_map_vpm(), hermon_mcast_detach(), hermon_modify_qp(), hermon_open(), hermon_post_send(), hermon_probe(), hermon_setup_mpt(), hmac_final(), hmac_init(), http_open_filter(), ib_cached_path_complete(), ib_cm_path_complete(), ib_cm_send_rtu(), ib_create_conn(), ib_create_path(), ib_mcast_mad(), ib_pull(), ib_resolve_path(), ib_sma_guid_info(), ib_sma_node_desc(), ib_sma_node_info(), ib_sma_pkey_table(), ib_sma_port_info(), ib_smc_get_guid_info(), ib_smc_get_pkey_table(), ib_smc_get_port_info(), ibft_set_ipaddr(), icmp6_send_solicit(), ifec_pci_probe(), igb_probe(), igb_process_rx_packets(), igb_process_tx_packets(), igb_setup_rx_resources(), igb_setup_tx_resources(), igb_update_mc_addr_list_generic(), ignore_job_progress(), init_editbox(), init_setting(), iob_pad(), ipoib_cache_peer(), ipoib_init_addr(), ipoib_probe(), ipoib_transmit(), ipv4_rx(), ipv4_tx(), ipv6_rx(), ipv6_tx(), ipv6_tx_csum(), isabus_probe(), isapnp_try_isolate(), isapnpbus_probe(), iscsi_open_connection(), iscsi_start_tx(), legacy_probe(), linda_complete_recv(), linda_create_recv_wq(), linda_fini_send(), linda_ib_epb_read(), linda_ib_epb_release(), linda_ib_epb_request(), linda_ib_epb_write(), linda_init_ib_serdes(), linda_init_recv(), linda_init_send(), linda_poll_eq(), linda_poll_recv_wq(), linda_post_recv(), linda_post_send(), linebuf_test(), mcabus_probe(), md5_final(), meme820(), more_comps(), mtnic_alloc_cq(), mtnic_alloc_eq(), mtnic_alloc_ring(), mtnic_CONFIG_CQ(), mtnic_CONFIG_EQ(), mtnic_CONFIG_PORT_RSS_STEER(), mtnic_CONFIG_RX(), mtnic_CONFIG_RX_RING(), mtnic_CONFIG_TX_RING(), mtnic_map_cmd(), mtnic_OPEN_NIC(), mtnic_probe(), mtnic_QUERY_CAP(), mtnic_RELEASE_RESOURCE(), mtnic_SET_PORT_DEFAULT_RING(), mtnic_SET_PORT_MTU(), mtnic_SET_PORT_RSS_INDIRECTION(), mtnic_SET_RX_RING_ADDR(), multiboot_build_memmap(), multiboot_exec(), myri10ge_net_close(), myri10ge_net_open(), natsemi_probe(), net80211_ll_push(), nvo_init_dhcpopts(), parse_setting_name(), pbkdf2_sha1_f(), pcibus_probe(), phantom_clp_cmd(), phantom_create_rx_ctx(), phantom_create_tx_ctx(), phantom_open(), phantom_poll(), phantom_probe(), phantom_refill_rx_ring(), phantom_transmit(), phantom_update_macaddr(), prism2_probe(), prism2_transmit(), pxe_menu_parse(), pxe_tftp_open(), pxenv_udp_write(), pxenv_undi_clear_statistics(), pxenv_undi_get_iface_info(), pxenv_undi_get_nic_type(), readline(), regular_multiply(), RSA_decrypt(), RSA_encrypt(), rtl8169_populate_rx_descriptor(), rtl8169_probe(), rtl8169_process_rx_packets(), rtl8169_process_tx_packets(), rtl8169_setup_rx_resources(), rtl8169_setup_tx_resources(), rtl818x_init_rx_ring(), rtl818x_init_tx_ring(), rtl_probe(), rtl_reset(), scsi_parse_lun(), scsi_read_10(), scsi_read_16(), scsi_read_capacity_10(), scsi_read_capacity_16(), scsi_write_10(), scsi_write_16(), set_multicast(), set_rx_mode(), SHA1Final(), sis190_init_board(), sis190_init_ring(), sis630e_get_mac_addr(), skge_up(), sky2_probe(), sky2_reset(), sky2_rx_clean(), sky2_set_multicast(), sky2_up(), slam_mc_socket_deliver(), slam_open(), slam_pull_header(), srp_cmd(), srp_login(), t509bus_probe(), tcp_open_uri(), tcp_rx_opts(), tcp_xmit(), tcp_xmit_reset(), tftp_reopen(), tftp_rx_data(), tftp_timer_expired(), tg3_abort_hw(), tg3_init_rings(), tg3_probe(), tg3_setup_fiber_phy(), tg3_transmit(), tls_assemble_block(), tls_clear_cipher(), tls_generate_random(), tls_send_client_hello(), tls_send_client_key_exchange(), tls_send_finished(), tls_set_cipher(), trivial_memset_user(), udp_open_uri(), udp_rx(), undi_load(), undi_unload(), undinet_open(), undinet_probe(), undinet_remove(), undinet_transmit(), undipci_probe(), velocity_init_cam_filter(), velocity_init_info(), velocity_init_rings(), velocity_transmit(), virtnet_probe(), vxge_device_register(), vxge_hw_device_hw_info_get(), vxge_xmit_compl(), wpa_alloc_frame(), wpa_send_eapol(), wpa_send_final(), and zalloc().

void* memmove	(	void *	dest,
		const void *	src,
		size_t	count
	)

Referenced by aes_unwrap(), aes_wrap(), bcopy(), insert_delete(), iob_pad(), multiboot_build_module_list(), parse_uri(), resize_dhcp_option(), and trivial_memmove_user().

int __pure memcmp	(	const void *	cs,
		const void *	ct,
		size_t	count
	)

memcmp - Compare two areas of memory : One area of memory : Another area of memory : The size of the area.

Definition at line 279 of file string.c.

Referenced by arp_find_entry(), ccmp_decrypt(), com32_identify(), eapol_key_rx(), efi_find_table(), elf_load(), elfboot_load(), eltorito_read_voldesc(), eth_probe(), find_ibdev(), ib_find_path_cache_entry(), ib_find_qp_mgid(), ib_mcast_detach(), ib_mi_handle(), ipoib_cache_peer(), ipv6_tx(), linda_verify_uc_ram(), mac_address_from_string_specs(), mtd_probe(), ne_probe(), net80211_rx(), nvs_verify(), script_load(), slam_pull_header(), strstr(), tftp_rx(), tkip_decrypt(), tkip_mix_1(), tls_new_ciphertext(), udp_demux(), wpa_check_pmkid(), wpa_derive_ptk(), wpa_handle_3_of_4(), and x509_rsa_public_key().

{
        const unsigned char *su1, *su2;
        int res = 0;

        for( su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
                if ((res = *su1 - *su2) != 0)
                        break;
        return res;
}

void* __pure memscan	(	const void *	addr,
		int	c,
		size_t	size
	)

memscan - Find a character in an area of memory.

: The memory area : The byte to search for : The size of the area.

returns the address of the first occurrence of , or 1 byte past the area if is not found

Definition at line 261 of file stringextra.c.

{
        unsigned char * p = (unsigned char *) addr;

        while (size) {
                if (*p == c)
                        return (void *) p;
                p++;
                size--;
        }
        return (void *) p;
}

char* __pure strstr	(	const char *	s1,
		const char *	s2
	)

strstr - Find the first substring in a NUL terminated string : The string to be searched : The string to search for

Definition at line 297 of file string.c.

References memcmp(), NULL, and strlen().

Referenced by bzimage_parse_cmdline(), comboot_fetch_kernel(), expand_command(), and http_rx_header().

{
        int l1, l2;

        l2 = strlen(s2);
        if (!l2)
                return (char *) s1;
        l1 = strlen(s1);
        while (l1 >= l2) {
                l1--;
                if (!memcmp(s1,s2,l2))
                        return (char *) s1;
                s1++;
        }
        return NULL;
}

void* __pure memchr	(	const void *	s,
		int	c,
		size_t	n
	)

memchr - Find a character in an area of memory.

: The memory area : The byte to search for
: The size of the area.

returns the address of the first occurrence of , or NULL if is not found

Definition at line 325 of file string.c.

References NULL.

Referenced by line_buffer(), and trivial_memchr_user().

{
        const unsigned char *p = s;
        while (n-- != 0) {
                if ((unsigned char)c == *p++) {
                        return (void *)(p-1);
                }
        }
        return NULL;
}

char* __malloc strdup

(

const char *

s

)

Definition at line 353 of file string.c.

References strndup().

Referenced by dns_qualify_name(), expand_command(), image_set_cmdline(), iscsi_handle_targetaddress_value(), iscsi_parse_root_path(), iscsi_set_auth(), readline(), and resolve_path().

                             {
        return strndup(s, ~((size_t)0));
}

char* __malloc strndup	(	const char *	s,
		size_t	n
	)

Definition at line 338 of file string.c.

References malloc(), memcpy, and strlen().

Referenced by strdup().

{
        size_t len = strlen(s);
        char *new;

        if (len>n)
                len = n;
        new = malloc(len+1);
        if (new) {
                new[len] = '\0';
                memcpy(new,s,len);
        }
        return new;
}

const char* __pure strerror

(

int

errno

)

Retrieve string representation of error number.

Parameters:

errno/rc

Error number or return status code

Return values:

strerror

Pointer to error text

If the error is not found in the linked-in error tables, generates a generic "Error 0x<errno>" message.

The pointer returned by strerror() is valid only until the next call to strerror().

Definition at line 77 of file strerror.c.

References find_closest_error(), snprintf(), and errortab::text.

Referenced by aoeboot(), apply_settings(), arbel_alloc_icm(), arbel_close(), arbel_create_cq(), arbel_create_eq(), arbel_create_qp(), arbel_destroy_cq(), arbel_destroy_eq(), arbel_destroy_qp(), arbel_get_limits(), arbel_mad(), arbel_mcast_attach(), arbel_mcast_detach(), arbel_modify_qp(), arbel_open(), arbel_poll_cq(), arbel_probe(), arbel_setup_mpt(), arbel_start_firmware(), arbel_stop_firmware(), ata_command(), ath5k_handle_rx(), ath5k_hw_channel(), ath5k_reset(), ath5k_tx_processq(), bzimage_load(), clear_exec(), comboot_fetch_kernel(), comboot_load_image(), comboot_prepare_bounce_buffer(), comboot_prepare_segment(), config_exec(), create_fakedhcpack(), create_fakedhcpdiscover(), create_fakepxebsack(), dhcp_create_request(), dhcp_exec(), dhcp_proxy_rx(), dhcp_pxebs_rx(), dhcp_request_rx(), dhcp_tx(), dns_resolv(), eapol_key_rx(), efab_init_mac(), efi_snp_initialize(), efi_snp_mcast_ip_to_mac(), efi_snp_receive(), efi_snp_reset(), efi_snp_transmit(), elf_load_segment(), elfboot_load(), eltorito_exec(), eltorito_load_disk(), embedded_init(), ftp_control_close(), ftp_data_closed(), ftp_data_deliver_iob(), ftp_done(), ftp_open(), ftp_xfer_closed(), get_cached_dhcpack(), hermon_alloc_icm(), hermon_close(), hermon_configure_special_qps(), hermon_create_cq(), hermon_create_eq(), hermon_create_qp(), hermon_destroy_cq(), hermon_destroy_eq(), hermon_destroy_qp(), hermon_dump_qpctx(), hermon_get_cap(), hermon_mad(), hermon_map_vpm(), hermon_mcast_attach(), hermon_mcast_detach(), hermon_modify_qp(), hermon_open(), hermon_poll_cq(), hermon_probe(), hermon_sense_port_type(), hermon_setup_mpt(), hermon_start_firmware(), hermon_stop_firmware(), http_open_filter(), http_rx_location(), http_socket_close(), http_socket_deliver_iob(), http_xfer_close(), ib_cm_path_complete(), ib_cm_req_complete(), ib_cm_send_rtu(), ib_cmrc_changed(), ib_cmrc_complete_recv(), ib_cmrc_complete_send(), ib_cmrc_open(), ib_cmrc_xfer_close(), ib_cmrc_xfer_deliver_iob(), ib_create_cq(), ib_create_mi(), ib_create_qp(), ib_mcast_complete(), ib_mcast_join(), ib_mcast_leave(), ib_mi_complete_recv(), ib_mi_send(), ib_modify_qp(), ib_open(), ib_path_complete(), ib_post_recv(), ib_post_send(), ib_refill_recv(), ib_set_pkey_table(), ib_set_port_info(), ib_sma_guid_info(), ib_sma_node_desc(), ib_sma_node_info(), ib_sma_pkey_table(), ib_sma_port_info(), ib_sma_set_pkey_table(), ib_sma_set_port_info(), ib_smc_get_guid_info(), ib_smc_get_pkey_table(), ib_smc_get_port_info(), ib_srp_connect(), ib_srp_parse_root_path(), ib_srpboot(), ibft_fill_nic(), icmp_rx(), iflinkwait(), ifopen(), ifstat(), ifstat_errors(), image_exec(), image_load_type(), imgexec_exec(), imgfetch_core_exec(), imgload_exec(), init_i2c_bit_basher(), init_scsidev(), int13_boot(), int13_extended_rw(), int13_rw_sectors(), ipoib_join_broadcast_group(), ipoib_link_state_changed(), ipoib_open(), ipv4_rx(), ipv4_tx(), iscsi_handle_chap_i_value(), iscsi_handle_chap_r_value(), iscsi_handle_string(), iscsi_open_connection(), iscsi_rx_login_response(), iscsi_socket_close(), iscsi_socket_deliver_raw(), iscsi_tx_step(), iscsiboot(), iwlist(), linda_complete_recv(), linda_init_i2c(), linda_probe(), linda_program_uc_ram(), linda_read_eeprom(), linda_verify_uc_ram(), linebuf_test(), login_exec(), main_loop(), monojob_wait(), multiboot_load_elf(), multiboot_load_raw(), myri10ge_net_open(), myri10ge_pci_probe(), nbi_prepare_segment(), net80211_probe_step(), net80211_step_associate(), netboot(), netdev_rx_err(), netdev_tx_complete_err(), nvo_store(), phantom_create_rx_ctx(), phantom_create_tx_ctx(), phantom_destroy_rx_ctx(), phantom_destroy_tx_ctx(), phantom_fetch_setting(), phantom_issue_cmd(), phantom_probe(), phantom_store_setting(), pxe_deactivate(), pxe_load(), pxe_menu_parse(), pxe_tftp_open(), pxebs_exec(), pxenv_undi_get_mcast_address(), pxenv_undi_open(), pxenv_undi_reset_adapter(), pxenv_undi_transmit(), pxeparent_call(), register_ibdev(), register_netdev(), resolv_mux_try(), rootdev_probe(), sanboot_exec(), script_exec(), scsi_command(), set_exec(), show_exec(), slam_finished(), slam_mc_socket_close(), slam_open(), slam_pull_header(), slam_socket_close(), slam_xfer_close(), smbios_init(), srp_attach(), srp_cmd(), srp_login(), srp_xfer_close(), store_cached_dhcpack(), tcp_rx_data(), tcp_xmit(), tcp_xmit_reset(), test_parse_unparse(), test_resolve(), tftp_core_open(), tftp_done(), tftp_presize(), tftp_reopen(), tftp_reopen_mc(), tftp_rx_data(), tftp_xfer_close(), threewire_detect_address_len(), threewire_read(), threewire_write(), tls_generate_keys(), tls_new_certificate(), tls_new_change_cipher(), tls_send_plaintext(), tls_step(), udp_tx(), undi_load(), uri_test(), wpa_handle_1_of_2(), wpa_handle_3_of_4(), xfer_deliver_iob_meta(), xfer_deliver_raw(), and xfer_vredirect().

                                    {
        static char errbuf[64];
        struct errortab *errortab;

        /* Allow for strerror(rc) as well as strerror(errno) */
        if ( errno < 0 )
                errno = -errno;

        /* Find the error description, if one exists */
        errortab = find_closest_error ( errno );

        /* Construct the error message */
        if ( errortab ) {
                snprintf ( errbuf, sizeof ( errbuf ), "%s (%#08x)",
                           errortab->text, errno );
        } else {
                snprintf ( errbuf, sizeof ( errbuf ), "Error %#08x", errno );
        }

        return errbuf;
}