226 lines
6.5 KiB
C
226 lines
6.5 KiB
C
/*
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******************************************************************************
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* SOURCE FILE
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*
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* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipcom_strlib.c,v $ $Revision: 1.20.60.2 $
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* $Source: /home/interpeak/CVSRoot/ipcom/src/ipcom_strlib.c,v $
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* $Author: fguo $ $Date: 2012-07-13 10:40:50 $
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* $State: Exp $ $Locker: $
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*
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* INTERPEAK_COPYRIGHT_STRING
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* Design and implementation by Roger Boden <roger@interpeak.se>
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******************************************************************************
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*/
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/*
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****************************************************************************
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* 1 DESCRIPTION
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 2 CONFIGURATION
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****************************************************************************
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*/
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#include "ipcom_config.h"
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/*
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****************************************************************************
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* 3 INCLUDE FILES
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****************************************************************************
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*/
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#define IPCOM_USE_CLIB_PROTO
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#include "ipcom_strlib.h"
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#include "ipcom_clib.h"
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#include "ipcom_err.h"
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#include "ipcom_syslog.h"
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/*
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****************************************************************************
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* 4 EXTERN PROTOTYPES
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 5 DEFINES
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****************************************************************************
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*/
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#define IPCOM_SYSLOG_PRIORITY IPCOM_SYSLOG_IPCOM_PRIORITY
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#define IPCOM_SYSLOG_FACILITY IPCOM_LOG_IPCOM
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/*
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****************************************************************************
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* 6 TYPES
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 7 LOCAL PROTOTYPES
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 8 DATA
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 9 LOCAL FUNCTIONS
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 10 PUBLIC FUNCTIONS
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****************************************************************************
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*/
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/*
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*===========================================================================
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* ipcom_parse_argstr
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*===========================================================================
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* Description: Parses a command string to the traditional argc and argv
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* arguments.
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* Parameters:
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* Returns:
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*/
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/*lint -efunc(429,ipcom_parse_argstr) Custodial pointer 'arg_str' (line X) has not been freed or returned*/
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IP_PUBLIC Ip_err
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ipcom_parse_argstr(char *arg_str, int *argc, char ***argv)
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{
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char **tmp_argv;
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Ip_size_t argv_size = 32;
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int pos = 0, arg_str_len;
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Ip_err err_code;
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char endmark;
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enum { skipping_space, searching_end_of_arg } state;
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state = skipping_space;
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*argc = 0;
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arg_str_len = (int)ipcom_strlen(arg_str);
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endmark = ' ';
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tmp_argv = ipcom_malloc(sizeof(char *) * argv_size);
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if(tmp_argv == IP_NULL)
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{
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err_code = IPCOM_ERR_FAILED;
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IPCOM_LOG0(ERR, "ipcom_parse_argstr :: out of memory 1");
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goto err;
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}
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ipcom_memset(tmp_argv, 0, sizeof(char *) * argv_size);
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while(pos < arg_str_len)
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{
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switch(state)
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{
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case skipping_space:
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if(arg_str[pos] == ' ' || arg_str[pos] == '\t')
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break;
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if(arg_str[pos] == '\'')
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{
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endmark = '\'';
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pos++;
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}
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else if(arg_str[pos] == '"')
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{
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endmark = '"';
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pos++;
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}
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else
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endmark = ' ';
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tmp_argv[*argc] = &(arg_str[pos]);
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(*argc)++;
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if(*argc == (int)argv_size)
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{
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/* Make space to fit in a terminating NULL pointer
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* (and possible additional args) */
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tmp_argv = ipcom_realloc(tmp_argv, sizeof(char*)*argv_size*2);
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if( !tmp_argv )
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{
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IPCOM_LOG0(ERR, "ipcom_parse_argstr :: out of memory 2");
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err_code = IPCOM_ERR_FAILED;
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goto err;
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}
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argv_size *=2;
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}
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state = searching_end_of_arg;
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break;
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case searching_end_of_arg:
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if(arg_str[pos] == endmark)
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{
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state = skipping_space;
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arg_str[pos] = 0;
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}
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break;
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}
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pos++;
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}
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if(state == searching_end_of_arg && (endmark == '\'' || endmark == '"'))
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{
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IPCOM_LOG1(ERR, "ipcom_parse_argstr() :: badly matched escape characters (%c)", endmark);
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err_code = IPCOM_ERR_INVALID_ARG;
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goto err;
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}
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tmp_argv[*argc] = IP_NULL;
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*argv = tmp_argv;
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return IPCOM_SUCCESS;
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err:
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if(tmp_argv != IP_NULL)
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{
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ipcom_free(tmp_argv);
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}
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*argc = 0;
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*argv = IP_NULL;
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return err_code;
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}
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/*
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*===========================================================================
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* ipcom_str_in_list
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*===========================================================================
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* Description: Search 'list' for 'str', where 'list' is a string of whitespace
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* separated sub-strings.
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* Parameters:
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* Returns: True (non-zero) if 'str' is part of 'list'
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*/
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IP_PUBLIC char *
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ipcom_str_in_list(char *str, char *list)
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{
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Ip_size_t n;
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char *s;
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for (s = ipcom_strstr(list, str); s; s = s + n, s = ipcom_strstr(s, str))
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{
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n = ipcom_strcspn(s, " \t");
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if (ipcom_strncmp(s, str, n) == 0)
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{
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return s;
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}
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}
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return IP_NULL;
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}
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/*
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****************************************************************************
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* END OF FILE
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****************************************************************************
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*/
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