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POc pass a string to function then return a string
 

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  1. POc pass a string to function then return a string
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    <p>After exploring the internet, i've wrote the following script, but still got errors, anyone knows what the errors are?( the line with //err)</p> <pre><code>typedef struct name_value_set { char name[250]; char value[250]; } nv_set; char * getInput2(char *param) { char *my_data=0; int data_len; char *tmp_ptr, *tmp; int i; nv_set *nv; data_len=atoi(getenv("CONTENT_LENGTH")); char field[data_len]; my_data=(char*)malloc(sizeof(char)*(data_len+1)); fread(my_data,1,data_len,stdin); i=0; while (my_data[0]!='\0') { tmp=split(my_data,'='); // err makespace(tmp); tmp=convert(tmp); // err strcpy(nv[i].name,tmp); // tmp=split(my_data,'&amp;'); //err makespace(tmp); // tmp=convert(tmp); // err strcpy(nv[i].value,tmp); // i++; } i--; // int j=0; for (j=0; j&lt;i; j++) { if(nv[j].name == param) { return nv[j].value; } } void makespace(char *s) { int i,len; len=strlen(s); for (i=0;i&lt;len;i++) { if (s[i]=='+') s[i]=' '; } } char *split(char *s, char stop) { char *data; char *tmp; int i,len,j; len=strlen(s); tmp=s; data=(char*)malloc(sizeof(char)*(len+1)); for (i=0;i&lt;len;i++) { if (s[i]!=stop) data[i]=s[i]; // else { i+=1; // break; } } data[i]='\0'; for (j=i;j&lt;len;j++) s[j-i]=tmp[j]; s[len-i]='\0'; return data; } char *convert(char *s) { int x,y,len; char *data; len=strlen(s); data=(char*)malloc(sizeof(char)*(len+1)); y=0; for (x=0;x&lt;len;x++) { if (s[x]!='%') { data[y]=s[x]; // y++; } else { data[y]=(char)(16*hexa(s[x+1])+hexa(s[x+2])); y++; x=x+2; } } data[y]='\0'; return data; } int hexa(char c) { switch(c) { case '0':return 0; case '1':return 1; case '2':return 2; case '3':return 3; case '4':return 4; case '5':return 5; case '6':return 6; case '7':return 7; case '8':return 8; case '9':return 9; case 'A':return 10; case 'B':return 11; case 'C':return 12; case 'D':return 13; case 'E':return 14; case 'F':return 15; } return 0; } </code></pre>
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    1. USfriends
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    1. CODon't be vague, be an ace; write a proper test-case! http://tinyurl.com/so-hints http://sscce.org/ http://www.xs4all.nl/~weegen/eelis/iso-c++/testcase.xhtml
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    2. COYou don't say what the error is, but you may just need to forward declare your functions. The compiler parses your file in order and when it's compiling your first function it hasn't "seen" split() yet. So put `extern char *split(char *, char);` at the top and see if that helps. (repeat for other functions, of course)
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      1. USBen Jackson
    3. CO"still got errors" Well, what kind of errors? Are they compiler errors? Does it compile? If so, can you run it? Does it crash? Does it not work correctly? Have you tried attaching a debugger to see what is wrong with it?
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      1. USJames McNellis
 

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