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/******************************************************************************
* *
* s t r s t r *
* *
* Find the first occurrence of a string in another string. *
* *
* Format: *
* return = strstr(Source,What); *
* *
* Parameters: *
* *
* Returns: *
* *
* Scope: PUBLIC *
* *
******************************************************************************/
char *strstr(Source, What)
register const char *Source;
register const char *What;
{
register char WhatChar;
register char SourceChar;
register long Length;
if ((WhatChar = *What++) != 0) {
Length = strlen(What);
do {
do {
if ((SourceChar = *Source++) == 0) {
return (0);
}
} while (SourceChar != WhatChar);
} while (strncmp(Source, What, Length) != 0);
Source--;
}
return ((char *)Source);
}/*strstr*/
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