55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
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#include <string.h>
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#define MAX_RECORDS 1000
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int readdata(char * * const data, int sz)
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{
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FILE *f = fopen("data.txt", "rt");
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if (!f)
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return 0; // failed
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char line[10000] = {0};
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int i = 0;
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while (i < sz && fgets(line,sizeof(line)-2,f)) {
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if (strncmp(line, "name=", 5) == 0) {
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data[i] = malloc(strlen(line));
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strcpy(data[i], line);
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i++;
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}
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}
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fclose(f);
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return 1; // success
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}
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const char * getname(const char *data) {
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static char name[32];
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if (strncmp(data,"name=",5) != 0)
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return NULL;
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int i = 0;
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while (i < sizeof(name) && data[i+5] && data[i+5] != '&') {
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name[i] = data[i+5];
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i++;
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}
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if (i >= sizeof(name))
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return NULL;
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while (i < sizeof(name))
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name[i++] = 0;
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return name;
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}
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void sortdata(char * * const data, int sz)
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{
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for (int i = 1; i < sz && data[i]; i++) {
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if (strcmp(data[i-1], data[i]) > 0) {
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char *p = data[i-1];
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data[i-1] = data[i];
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data[i] = p;
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if (i > 1)
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i--;
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}
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}
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}
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